diff --git a/HISTORY.md b/HISTORY.md
index 9fb85421..528c5840 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,28 @@
 # vis.js history
 http://visjs.org
 
+## UNRELEASED, version 4.0.1
+
+### Network
+
+- Fixed #866, manipulation can now be set to false without crashing.
+- Fixed #860, edit node mode now works as it should.
+- Fixed #859, images now resize again when they are loaded.
+- Fixed dynamic edges not correctly handling non-existent nodes.
+- Accepted pull from @killerDJO for fixing selected and hover colors for edges.
+- Fixed bug with rightmouse button, scroll center and popup positions using the wrong coordinates.
+- Fixed click to use.
+- Fixed getConnectedEdges method.
+- Fixed clustering bug.
+- Added getNodesInCluster method.
+- Renamed editNodeMode to editNode, editNodeMode now give a deprication log message.
+- Added multiselect to the docs.
+- Removed depricated dynamic entree, allow any smooth curve style for hierarchical layout.
+
+### Graph2d & Timeline
+
+- Fixed #858, removed usage of deprictated unsubscribe from dataset.
+
 
 ## not yet released, version 4.0.1-SNAPSHOT
 
diff --git a/dist/vis.css b/dist/vis.css
index 42b7fdc7..211b916f 100644
--- a/dist/vis.css
+++ b/dist/vis.css
@@ -825,6 +825,7 @@ div.vis-network-tooltip {
   border: 1px solid #808074;
 
   box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.2);
+  pointer-events: none;
 }
 div.vis-network-configuration {
     position:relative;
diff --git a/dist/vis.js b/dist/vis.js
index 0d9c0e2d..3490fbb6 100644
--- a/dist/vis.js
+++ b/dist/vis.js
@@ -5,7 +5,7 @@
  * A dynamic, browser-based visualization library.
  *
  * @version 4.0.1-SNAPSHOT
- * @date    2015-05-22
+ * @date    2015-05-25
  *
  * @license
  * Copyright (C) 2011-2014 Almende B.V, http://almende.com
@@ -176,7 +176,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
-  var _componentsNodesCluster = __webpack_require__(85);
+  var _componentsNodesCluster = __webpack_require__(83);
 
   var _componentsNodesCluster2 = _interopRequireDefault(_componentsNodesCluster);
 
@@ -730,7 +730,6 @@ return /******/ (function(modules) { // webpackBootstrap
               edge.disconnect();
               delete this.body.edges[edgeId];
             } else {
-
               // one of the nodes connected to this edge is in a cluster. We give the edge to that cluster so it will be released when that cluster is opened.
               if (this.clusteredNodes[edge.fromId] !== undefined || this.clusteredNodes[edge.toId] !== undefined) {
                 var fromId = undefined,
@@ -740,16 +739,16 @@ return /******/ (function(modules) { // webpackBootstrap
                 var _clusterNode = this.body.nodes[clusterId];
                 _clusterNode.containedEdges[edgeId] = edge;
 
-                // if both from and to nodes are visible, we create a new temporary edge
-                if (edge.from.options.hidden !== true && edge.to.options.hidden !== true) {
-                  if (this.clusteredNodes[edge.fromId] !== undefined) {
-                    fromId = clusterId;
-                    toId = edge.toId;
-                  } else {
-                    fromId = edge.fromId;
-                    toId = clusterId;
-                  }
+                if (this.clusteredNodes[edge.fromId] !== undefined) {
+                  fromId = clusterId;
+                  toId = edge.toId;
+                } else {
+                  fromId = edge.fromId;
+                  toId = clusterId;
+                }
 
+                // if both from and to nodes are visible, we create a new temporary edge
+                if (this.body.nodes[fromId].options.hidden !== true && this.body.nodes[toId].options.hidden !== true) {
                   var clonedOptions = this._cloneOptions(edge, 'edge');
                   var id = 'clusterEdge:' + util.randomUUID();
                   util.deepExtend(clonedOptions, _clusterNode.clusterEdgeProperties);
@@ -784,30 +783,19 @@ return /******/ (function(modules) { // webpackBootstrap
         }
       }
     }, {
-      key: '_connectEdge',
-
-      /**
-      * Connect an edge that was previously contained from cluster A to cluster B if the node that it was originally connected to
-      * is currently residing in cluster B
-      * @param edge
-      * @param nodeId
-      * @param from
-      * @private
-      */
-      value: function _connectEdge(edge, nodeId, from) {
-        var clusterStack = this.findNode(nodeId);
-        if (from === true) {
-          edge.from = clusterStack[clusterStack.length - 1];
-          edge.fromId = clusterStack[clusterStack.length - 1].id;
-          clusterStack.pop();
-          edge.fromArray = clusterStack;
-        } else {
-          edge.to = clusterStack[clusterStack.length - 1];
-          edge.toId = clusterStack[clusterStack.length - 1].id;
-          clusterStack.pop();
-          edge.toArray = clusterStack;
+      key: 'getNodesInCluster',
+      value: function getNodesInCluster(clusterId) {
+        var nodesArray = [];
+        if (this.isCluster(clusterId) === true) {
+          var containedNodes = this.body.nodes[clusterId].containedNodes;
+          for (var nodeId in containedNodes) {
+            if (containedNodes.hasOwnProperty(nodeId)) {
+              nodesArray.push(nodeId);
+            }
+          }
         }
-        edge.connect();
+
+        return nodesArray;
       }
     }, {
       key: 'findNode',
@@ -12484,7 +12472,7 @@ return /******/ (function(modules) { // webpackBootstrap
     // unsubscribe from current dataset
     if (this.groupsData) {
       util.forEach(this.groupListeners, function (callback, event) {
-        me.groupsData.unsubscribe(event, callback);
+        me.groupsData.off(event, callback);
       });
 
       // remove all drawn groups
@@ -13927,7 +13915,7 @@ return /******/ (function(modules) { // webpackBootstrap
     // unsubscribe from current dataset
     if (this.groupsData) {
       util.forEach(this.groupListeners, function (callback, event) {
-        me.groupsData.unsubscribe(event, callback);
+        me.groupsData.off(event, callback);
       });
 
       // remove all drawn groups
@@ -15207,6 +15195,8 @@ return /******/ (function(modules) { // webpackBootstrap
    * @param {Object} options
    */
   Network.prototype.setOptions = function (options) {
+    var _this2 = this;
+
     if (options !== undefined) {
 
       var errorFound = _sharedValidator2['default'].validate(options, _optionsJs.allOptions);
@@ -15269,8 +15259,10 @@ return /******/ (function(modules) { // webpackBootstrap
       if (options.clickToUse !== undefined) {
         if (options.clickToUse === true) {
           if (this.activator === undefined) {
-            this.activator = new Activator(this.frame);
-            this.activator.on('change', this._createKeyBinds.bind(this));
+            this.activator = new Activator(this.canvas.frame);
+            this.activator.on('change', function () {
+              _this2.body.emitter.emit('activate');
+            });
           }
         } else {
           if (this.activator !== undefined) {
@@ -15321,25 +15313,25 @@ return /******/ (function(modules) { // webpackBootstrap
    * Bind all events
    */
   Network.prototype.bindEventListeners = function () {
-    var _this2 = this;
+    var _this3 = this;
 
     // this event will trigger a rebuilding of the cache everything. Used when nodes or edges have been added or removed.
     this.body.emitter.on('_dataChanged', function () {
       // update shortcut lists
-      _this2._updateVisibleIndices();
-      _this2.physics.updatePhysicsData();
+      _this3._updateVisibleIndices();
+      _this3.physics.updatePhysicsData();
 
       // call the dataUpdated event because the only difference between the two is the updating of the indices
-      _this2.body.emitter.emit('_dataUpdated');
+      _this3.body.emitter.emit('_dataUpdated');
     });
 
     // this is called when options of EXISTING nodes or edges have changed.
     this.body.emitter.on('_dataUpdated', function () {
       // update values
-      _this2._updateValueRange(_this2.body.nodes);
-      _this2._updateValueRange(_this2.body.edges);
+      _this3._updateValueRange(_this3.body.nodes);
+      _this3._updateValueRange(_this3.body.edges);
       // start simulation (can be called safely, even if already running)
-      _this2.body.emitter.emit('startSimulation');
+      _this3.body.emitter.emit('startSimulation');
     });
   };
 
@@ -15503,6 +15495,9 @@ return /******/ (function(modules) { // webpackBootstrap
   Network.prototype.cluster = function () {
     return this.clustering.cluster.apply(this.clustering, arguments);
   };
+  Network.prototype.getNodesInCluster = function () {
+    return this.clustering.getNodesInCluster.apply(this.clustering, arguments);
+  };
   Network.prototype.clusterByConnection = function () {
     return this.clustering.clusterByConnection.apply(this.clustering, arguments);
   };
@@ -15524,8 +15519,11 @@ return /******/ (function(modules) { // webpackBootstrap
   Network.prototype.addNodeMode = function () {
     return this.manipulation.addNodeMode.apply(this.manipulation, arguments);
   };
+  Network.prototype.editNode = function () {
+    return this.manipulation.editNode.apply(this.manipulation, arguments);
+  };
   Network.prototype.editNodeMode = function () {
-    return this.manipulation.editNodeMode.apply(this.manipulation, arguments);
+    console.log('Depricated: Please use editNode instead of editNodeMode.');return this.manipulation.editNode.apply(this.manipulation, arguments);
   };
   Network.prototype.addEdgeMode = function () {
     return this.manipulation.addEdgeMode.apply(this.manipulation, arguments);
@@ -15552,8 +15550,8 @@ return /******/ (function(modules) { // webpackBootstrap
       return this.edgesHandler.getConnectedNodes.apply(this.edgesHandler, arguments);
     }
   };
-  Network.prototype.getEdges = function () {
-    return this.nodesHandler.getEdges.apply(this.nodesHandler, arguments);
+  Network.prototype.getConnectedEdges = function () {
+    return this.nodesHandler.getConnectedEdges.apply(this.nodesHandler, arguments);
   };
   Network.prototype.startSimulation = function () {
     return this.physics.startSimulation.apply(this.physics, arguments);
@@ -18232,7 +18230,9 @@ return /******/ (function(modules) { // webpackBootstrap
         range.step = step;
 
         if (value !== undefined) {
-          if (value * 0.1 < min) {
+          if (value < 0 && value * 2 < min) {
+            range.min = value * 2;
+          } else if (value * 0.1 < min) {
             range.min = value / 10;
           }
           if (value * 2 > max && max !== 1) {
@@ -18812,9 +18812,9 @@ return /******/ (function(modules) { // webpackBootstrap
       // http://en.wikibooks.org/wiki/Algorithm_Implementation/Strings/Levenshtein_distance#JavaScript
       /*
        Copyright (c) 2011 Andrei Mackenzie
-        Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-        The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+         Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+         The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+         THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
        */
       value: function levenshteinDistance(a, b) {
         if (a.length === 0) return b.length;
@@ -20195,7 +20195,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   var _componentsNode2 = _interopRequireDefault(_componentsNode);
 
-  var _componentsSharedLabel = __webpack_require__(75);
+  var _componentsSharedLabel = __webpack_require__(84);
 
   var _componentsSharedLabel2 = _interopRequireDefault(_componentsSharedLabel);
 
@@ -20625,22 +20625,25 @@ return /******/ (function(modules) { // webpackBootstrap
         return nodeList;
       }
     }, {
-      key: 'getEdges',
+      key: 'getConnectedEdges',
 
       /**
        * Get the ids of the edges connected to this node.
        * @param nodeId
        * @returns {*}
        */
-      value: function getEdges(nodeId) {
+      value: function getConnectedEdges(nodeId) {
         var edgeList = [];
         if (this.body.nodes[nodeId] !== undefined) {
           var node = this.body.nodes[nodeId];
           for (var i = 0; i < node.edges.length; i++) {
             edgeList.push(node.edges[i].id);
           }
+        } else {
+          console.log('NodeId provided for getConnectedEdges does not exist. Provided: ', nodeId);
         }
-        return nodeList;
+        console.log(edgeList);
+        return edgeList;
       }
     }]);
 
@@ -20666,11 +20669,11 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
-  var _componentsEdge = __webpack_require__(76);
+  var _componentsEdge = __webpack_require__(87);
 
   var _componentsEdge2 = _interopRequireDefault(_componentsEdge);
 
-  var _componentsSharedLabel = __webpack_require__(75);
+  var _componentsSharedLabel = __webpack_require__(84);
 
   var _componentsSharedLabel2 = _interopRequireDefault(_componentsSharedLabel);
 
@@ -20781,6 +20784,9 @@ return /******/ (function(modules) { // webpackBootstrap
 
         // this allows external modules to force all dynamic curves to turn static.
         this.body.emitter.on('_forceDisableDynamicCurves', function (type) {
+          if (type === 'dynamic') {
+            type = 'continuous';
+          }
           var emitChange = false;
           for (var edgeId in _this2.body.edges) {
             if (_this2.body.edges.hasOwnProperty(edgeId)) {
@@ -20792,11 +20798,11 @@ return /******/ (function(modules) { // webpackBootstrap
               if (edgeData !== undefined) {
                 var edgeOptions = edgeData.smooth;
                 if (edgeOptions !== undefined) {
-                  if (edgeOptions.enabled === true && edgeOptions.dynamic === true) {
+                  if (edgeOptions.enabled === true && edgeOptions.type === 'dynamic') {
                     if (type === undefined) {
                       edge.setOptions({ smooth: false });
                     } else {
-                      edge.setOptions({ smooth: { dynamic: false, type: type } });
+                      edge.setOptions({ smooth: { type: type } });
                     }
                     emitChange = true;
                   }
@@ -21100,35 +21106,35 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
-  var _componentsPhysicsBarnesHutSolver = __webpack_require__(77);
+  var _componentsPhysicsBarnesHutSolver = __webpack_require__(75);
 
   var _componentsPhysicsBarnesHutSolver2 = _interopRequireDefault(_componentsPhysicsBarnesHutSolver);
 
-  var _componentsPhysicsRepulsionSolver = __webpack_require__(78);
+  var _componentsPhysicsRepulsionSolver = __webpack_require__(76);
 
   var _componentsPhysicsRepulsionSolver2 = _interopRequireDefault(_componentsPhysicsRepulsionSolver);
 
-  var _componentsPhysicsHierarchicalRepulsionSolver = __webpack_require__(79);
+  var _componentsPhysicsHierarchicalRepulsionSolver = __webpack_require__(77);
 
   var _componentsPhysicsHierarchicalRepulsionSolver2 = _interopRequireDefault(_componentsPhysicsHierarchicalRepulsionSolver);
 
-  var _componentsPhysicsSpringSolver = __webpack_require__(80);
+  var _componentsPhysicsSpringSolver = __webpack_require__(78);
 
   var _componentsPhysicsSpringSolver2 = _interopRequireDefault(_componentsPhysicsSpringSolver);
 
-  var _componentsPhysicsHierarchicalSpringSolver = __webpack_require__(81);
+  var _componentsPhysicsHierarchicalSpringSolver = __webpack_require__(79);
 
   var _componentsPhysicsHierarchicalSpringSolver2 = _interopRequireDefault(_componentsPhysicsHierarchicalSpringSolver);
 
-  var _componentsPhysicsCentralGravitySolver = __webpack_require__(82);
+  var _componentsPhysicsCentralGravitySolver = __webpack_require__(80);
 
   var _componentsPhysicsCentralGravitySolver2 = _interopRequireDefault(_componentsPhysicsCentralGravitySolver);
 
-  var _componentsPhysicsFA2BasedRepulsionSolver = __webpack_require__(83);
+  var _componentsPhysicsFA2BasedRepulsionSolver = __webpack_require__(81);
 
   var _componentsPhysicsFA2BasedRepulsionSolver2 = _interopRequireDefault(_componentsPhysicsFA2BasedRepulsionSolver);
 
-  var _componentsPhysicsFA2BasedCentralGravitySolver = __webpack_require__(84);
+  var _componentsPhysicsFA2BasedCentralGravitySolver = __webpack_require__(82);
 
   var _componentsPhysicsFA2BasedCentralGravitySolver2 = _interopRequireDefault(_componentsPhysicsFA2BasedCentralGravitySolver);
 
@@ -21730,10 +21736,16 @@ return /******/ (function(modules) { // webpackBootstrap
     return object instanceof Number || typeof object == 'number';
   };
 
+  /**
+   * Remove everything in the DOM object
+   * @param DOMobject
+   */
   exports.recursiveDOMDelete = function (DOMobject) {
-    while (DOMobject.hasChildNodes() == true) {
-      exports.recursiveDOMDelete(DOMobject.firstChild);
-      DOMobject.removeChild(DOMobject.firstChild);
+    if (DOMobject) {
+      while (DOMobject.hasChildNodes() === true) {
+        exports.recursiveDOMDelete(DOMobject.firstChild);
+        DOMobject.removeChild(DOMobject.firstChild);
+      }
     }
   };
 
@@ -24213,11 +24225,11 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
-  var _componentsNavigationHandler = __webpack_require__(86);
+  var _componentsNavigationHandler = __webpack_require__(85);
 
   var _componentsNavigationHandler2 = _interopRequireDefault(_componentsNavigationHandler);
 
-  var _componentsPopup = __webpack_require__(87);
+  var _componentsPopup = __webpack_require__(86);
 
   var _componentsPopup2 = _interopRequireDefault(_componentsPopup);
 
@@ -24397,7 +24409,7 @@ return /******/ (function(modules) { // webpackBootstrap
     }, {
       key: 'onContext',
       value: function onContext(event) {
-        var pointer = this.getPointer({ x: event.pageX, y: event.pageY });
+        var pointer = this.getPointer({ x: event.clientX, y: event.clientY });
         this.selectionHandler._generateClickEvent('oncontext', event, pointer);
       }
     }, {
@@ -24695,7 +24707,7 @@ return /******/ (function(modules) { // webpackBootstrap
           scale *= 1 + zoom;
 
           // calculate the pointer location
-          var pointer = this.getPointer({ x: event.pageX, y: event.pageY });
+          var pointer = this.getPointer({ x: event.clientX, y: event.clientY });
 
           // apply the new scale
           this.zoom(scale, pointer);
@@ -24715,7 +24727,7 @@ return /******/ (function(modules) { // webpackBootstrap
       value: function onMouseMove(event) {
         var _this3 = this;
 
-        var pointer = this.getPointer({ x: event.pageX, y: event.pageY });
+        var pointer = this.getPointer({ x: event.clientX, y: event.clientY });
         var popupVisible = false;
 
         // check if the previously selected node is still selected
@@ -24918,7 +24930,7 @@ return /******/ (function(modules) { // webpackBootstrap
   function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
   var Node = __webpack_require__(74);
-  var Edge = __webpack_require__(76);
+  var Edge = __webpack_require__(87);
   var util = __webpack_require__(57);
 
   var SelectionHandler = (function () {
@@ -25722,13 +25734,13 @@ return /******/ (function(modules) { // webpackBootstrap
           if (allOptions.physics === undefined || allOptions.physics === true) {
             allOptions.physics = { solver: 'hierarchicalRepulsion' };
             this.optionsBackup.physics = { solver: 'barnesHut' };
-          } else if (typeof options.physics === 'object') {
+          } else if (typeof allOptions.physics === 'object') {
             this.optionsBackup.physics = { solver: 'barnesHut' };
-            if (options.physics.solver !== undefined) {
-              this.optionsBackup.physics = { solver: options.physics.solver };
+            if (allOptions.physics.solver !== undefined) {
+              this.optionsBackup.physics = { solver: allOptions.physics.solver };
             }
             allOptions.physics['solver'] = 'hierarchicalRepulsion';
-          } else if (options.physics !== false) {
+          } else if (allOptions.physics !== false) {
             this.optionsBackup.physics = { solver: 'barnesHut' };
             allOptions.physics['solver'] = 'hierarchicalRepulsion';
           }
@@ -25741,18 +25753,31 @@ return /******/ (function(modules) { // webpackBootstrap
 
           // disable smooth curves if nothing is defined. If smooth curves have been turned on, turn them into static smooth curves.
           if (allOptions.edges === undefined) {
-            this.optionsBackup.edges = { smooth: true, dynamic: true };
+            this.optionsBackup.edges = { smooth: { enabled: true, type: 'dynamic' } };
             allOptions.edges = { smooth: false };
           } else if (allOptions.edges.smooth === undefined) {
-            this.optionsBackup.edges = { smooth: true, dynamic: true };
+            this.optionsBackup.edges = { smooth: { enabled: true, type: 'dynamic' } };
             allOptions.edges.smooth = false;
           } else {
             if (typeof allOptions.edges.smooth === 'boolean') {
-              this.optionsBackup.edges = { smooth: allOptions.edges.smooth, dynamic: true };
-              allOptions.edges.smooth = { enabled: allOptions.edges.smooth, dynamic: false, type: type };
+              this.optionsBackup.edges = { smooth: allOptions.edges.smooth };
+              allOptions.edges.smooth = { enabled: allOptions.edges.smooth, type: type };
             } else {
-              this.optionsBackup.edges = { smooth: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled, dynamic: true };
-              allOptions.edges.smooth = { enabled: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled, dynamic: false, type: type };
+              // allow custom types except for dynamic
+              if (allOptions.edges.smooth.type !== undefined && allOptions.edges.smooth.type !== 'dynamic') {
+                type = allOptions.edges.smooth.type;
+              }
+
+              this.optionsBackup.edges = {
+                smooth: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled,
+                type: allOptions.edges.smooth.type === undefined ? 'dynamic' : allOptions.edges.smooth.type,
+                roundness: allOptions.edges.smooth.roundness === undefined ? 0.5 : allOptions.edges.smooth.roundness
+              };
+              allOptions.edges.smooth = {
+                enabled: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled,
+                type: type,
+                roundness: allOptions.edges.smooth.roundness === undefined ? 0.5 : allOptions.edges.smooth.roundness
+              };
             }
           }
 
@@ -26401,14 +26426,14 @@ return /******/ (function(modules) { // webpackBootstrap
         this._temporaryBindEvent('click', this._performAddNode.bind(this));
       }
     }, {
-      key: 'editNodeMode',
+      key: 'editNode',
 
       /**
        * call the bound function to handle the editing of the node. The node has to be selected.
        *
        * @private
        */
-      value: function editNodeMode() {
+      value: function editNode() {
         var _this2 = this;
 
         // when using the gui, enable edit mode if it wasnt already.
@@ -26429,7 +26454,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
             if (this.options.editNode.length === 2) {
               this.options.editNode(data, function (finalizedData) {
-                if (finalizedData !== null && finalizedData !== undefined && _this2.inMode === 'delete') {
+                if (finalizedData !== null && finalizedData !== undefined && _this2.inMode === 'editNode') {
                   // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
                   _this2.body.data.nodes.update(finalizedData);
                   _this2.showManipulatorToolbar();
@@ -26791,9 +26816,15 @@ return /******/ (function(modules) { // webpackBootstrap
         util.recursiveDOMDelete(this.closeDiv);
 
         // remove the manipulation divs
-        this.canvas.frame.removeChild(this.manipulationDiv);
-        this.canvas.frame.removeChild(this.editModeDiv);
-        this.canvas.frame.removeChild(this.closeDiv);
+        if (this.manipulationDiv) {
+          this.canvas.frame.removeChild(this.manipulationDiv);
+        }
+        if (this.editModeDiv) {
+          this.canvas.frame.removeChild(this.editModeDiv);
+        }
+        if (this.closeDiv) {
+          this.canvas.frame.removeChild(this.manipulationDiv);
+        }
 
         // set the references to undefined
         this.manipulationDiv = undefined;
@@ -26835,9 +26866,9 @@ return /******/ (function(modules) { // webpackBootstrap
     }, {
       key: '_createEditNodeButton',
       value: function _createEditNodeButton(locale) {
-        var button = this._createButton('editNodeMode', 'vis-button vis-edit', locale['editNode'] || this.options.locales['en']['editNode']);
+        var button = this._createButton('editNode', 'vis-button vis-edit', locale['editNode'] || this.options.locales['en']['editNode']);
         this.manipulationDiv.appendChild(button);
-        this._bindHammerToDiv(button, this.editNodeMode.bind(this));
+        this._bindHammerToDiv(button, this.editNode.bind(this));
       }
     }, {
       key: '_createEditEdgeButton',
@@ -27130,7 +27161,6 @@ return /******/ (function(modules) { // webpackBootstrap
                 physics: false,
                 smooth: {
                   enabled: true,
-                  dynamic: false,
                   type: 'continuous',
                   roundness: 0.5
                 }
@@ -34856,7 +34886,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
-  var _sharedLabel = __webpack_require__(75);
+  var _sharedLabel = __webpack_require__(84);
 
   var _sharedLabel2 = _interopRequireDefault(_sharedLabel);
 
@@ -34868,11 +34898,11 @@ return /******/ (function(modules) { // webpackBootstrap
 
   var _nodesShapesCircle2 = _interopRequireDefault(_nodesShapesCircle);
 
-  var _nodesShapesCircularImage = __webpack_require__(92);
+  var _nodesShapesCircularImage = __webpack_require__(93);
 
   var _nodesShapesCircularImage2 = _interopRequireDefault(_nodesShapesCircularImage);
 
-  var _nodesShapesDatabase = __webpack_require__(93);
+  var _nodesShapesDatabase = __webpack_require__(92);
 
   var _nodesShapesDatabase2 = _interopRequireDefault(_nodesShapesDatabase);
 
@@ -35359,1227 +35389,357 @@ return /******/ (function(modules) { // webpackBootstrap
 /* 75 */
 /***/ function(module, exports, __webpack_require__) {
 
-  'use strict';
+  "use strict";
 
-  Object.defineProperty(exports, '__esModule', {
+  Object.defineProperty(exports, "__esModule", {
     value: true
   });
 
-  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-  function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }
-
-  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
+  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
 
-  var util = __webpack_require__(57);
+  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-  var Label = (function () {
-    function Label(body, options) {
-      _classCallCheck(this, Label);
+  var BarnesHutSolver = (function () {
+    function BarnesHutSolver(body, physicsBody, options) {
+      _classCallCheck(this, BarnesHutSolver);
 
       this.body = body;
-
-      this.baseSize = undefined;
+      this.physicsBody = physicsBody;
+      this.barnesHutTree;
       this.setOptions(options);
-      this.size = { top: 0, left: 0, width: 0, height: 0, yLine: 0 }; // could be cached
     }
 
-    _createClass(Label, [{
-      key: 'setOptions',
+    _createClass(BarnesHutSolver, [{
+      key: "setOptions",
       value: function setOptions(options) {
-        var allowDeletion = arguments[1] === undefined ? false : arguments[1];
-
         this.options = options;
-
-        if (options.label !== undefined) {
-          this.labelDirty = true;
-        }
-
-        if (options.font !== undefined) {
-          Label.parseOptions(this.options.font, options, allowDeletion);
-          if (typeof options.font === 'string') {
-            this.baseSize = this.options.font.size;
-          } else if (typeof options.font === 'object') {
-            if (options.font.size !== undefined) {
-              this.baseSize = options.font.size;
-            }
-          }
-        }
+        this.thetaInversed = 1 / this.options.theta;
+        this.overlapAvoidanceFactor = 1 - Math.max(0, Math.min(1, this.options.avoidOverlap)); // if 1 then min distance = 0.5, if 0.5 then min distance = 0.5 + 0.5*node.shape.radius
       }
     }, {
-      key: 'draw',
+      key: "solve",
 
       /**
-       * Main function. This is called from anything that wants to draw a label.
-       * @param ctx
-       * @param x
-       * @param y
-       * @param selected
-       * @param baseline
+       * This function calculates the forces the nodes apply on eachother based on a gravitational model.
+       * The Barnes Hut method is used to speed up this N-body simulation.
+       *
+       * @private
        */
-      value: function draw(ctx, x, y, selected) {
-        var baseline = arguments[4] === undefined ? 'middle' : arguments[4];
-
-        // if no label, return
-        if (this.options.label === undefined) return;
+      value: function solve() {
+        if (this.options.gravitationalConstant !== 0 && this.physicsBody.physicsNodeIndices.length > 0) {
+          var node = undefined;
+          var nodes = this.body.nodes;
+          var nodeIndices = this.physicsBody.physicsNodeIndices;
+          var nodeCount = nodeIndices.length;
 
-        // check if we have to render the label
-        var viewFontSize = this.options.font.size * this.body.view.scale;
-        if (this.options.label && viewFontSize < this.options.scaling.label.drawThreshold - 1) return;
+          // create the tree
+          var barnesHutTree = this._formBarnesHutTree(nodes, nodeIndices);
 
-        // update the size cache if required
-        this.calculateLabelSize(ctx, selected, x, y, baseline);
+          // for debugging
+          this.barnesHutTree = barnesHutTree;
 
-        // create the fontfill background
-        this._drawBackground(ctx);
-        // draw text
-        this._drawText(ctx, selected, x, y, baseline);
+          // place the nodes one by one recursively
+          for (var i = 0; i < nodeCount; i++) {
+            node = nodes[nodeIndices[i]];
+            if (node.options.mass > 0) {
+              // starting with root is irrelevant, it never passes the BarnesHutSolver condition
+              this._getForceContribution(barnesHutTree.root.children.NW, node);
+              this._getForceContribution(barnesHutTree.root.children.NE, node);
+              this._getForceContribution(barnesHutTree.root.children.SW, node);
+              this._getForceContribution(barnesHutTree.root.children.SE, node);
+            }
+          }
+        }
       }
     }, {
-      key: '_drawBackground',
+      key: "_getForceContribution",
 
       /**
-       * Draws the label background
-       * @param {CanvasRenderingContext2D} ctx
+       * This function traverses the barnesHutTree. It checks when it can approximate distant nodes with their center of mass.
+       * If a region contains a single node, we check if it is not itself, then we apply the force.
+       *
+       * @param parentBranch
+       * @param node
        * @private
        */
-      value: function _drawBackground(ctx) {
-        if (this.options.font.background !== undefined && this.options.font.background !== 'none') {
-          ctx.fillStyle = this.options.font.background;
+      value: function _getForceContribution(parentBranch, node) {
+        // we get no force contribution from an empty region
+        if (parentBranch.childrenCount > 0) {
+          var dx = undefined,
+              dy = undefined,
+              distance = undefined;
 
-          var lineMargin = 2;
+          // get the distance from the center of mass to the node.
+          dx = parentBranch.centerOfMass.x - node.x;
+          dy = parentBranch.centerOfMass.y - node.y;
+          distance = Math.sqrt(dx * dx + dy * dy);
 
-          switch (this.options.font.align) {
-            case 'middle':
-              ctx.fillRect(-this.size.width * 0.5, -this.size.height * 0.5, this.size.width, this.size.height);
-              break;
-            case 'top':
-              ctx.fillRect(-this.size.width * 0.5, -(this.size.height + lineMargin), this.size.width, this.size.height);
-              break;
-            case 'bottom':
-              ctx.fillRect(-this.size.width * 0.5, lineMargin, this.size.width, this.size.height);
-              break;
-            default:
-              ctx.fillRect(this.size.left, this.size.top - 0.5 * lineMargin, this.size.width, this.size.height);
-              break;
+          // BarnesHutSolver condition
+          // original condition : s/d < theta = passed  ===  d/s > 1/theta = passed
+          // calcSize = 1/s --> d * 1/s > 1/theta = passed
+          if (distance * parentBranch.calcSize > this.thetaInversed) {
+            this._calculateForces(distance, dx, dy, node, parentBranch);
+          } else {
+            // Did not pass the condition, go into children if available
+            if (parentBranch.childrenCount === 4) {
+              this._getForceContribution(parentBranch.children.NW, node);
+              this._getForceContribution(parentBranch.children.NE, node);
+              this._getForceContribution(parentBranch.children.SW, node);
+              this._getForceContribution(parentBranch.children.SE, node);
+            } else {
+              // parentBranch must have only one node, if it was empty we wouldnt be here
+              if (parentBranch.children.data.id != node.id) {
+                // if it is not self
+                this._calculateForces(distance, dx, dy, node, parentBranch);
+              }
+            }
           }
         }
       }
     }, {
-      key: '_drawText',
+      key: "_calculateForces",
 
       /**
+       * Calculate the forces based on the distance.
        *
-       * @param ctx
-       * @param x
-       * @param baseline
+       * @param distance
+       * @param dx
+       * @param dy
+       * @param node
+       * @param parentBranch
        * @private
        */
-      value: function _drawText(ctx, selected, x, y) {
-        var baseline = arguments[4] === undefined ? 'middle' : arguments[4];
-
-        var fontSize = this.options.font.size;
-        var viewFontSize = fontSize * this.body.view.scale;
-        // this ensures that there will not be HUGE letters on screen by setting an upper limit on the visible text size (regardless of zoomLevel)
-        if (viewFontSize >= this.options.scaling.label.maxVisible) {
-          fontSize = Number(this.options.scaling.label.maxVisible) / this.body.view.scale;
+      value: function _calculateForces(distance, dx, dy, node, parentBranch) {
+        if (distance === 0) {
+          distance = 0.1 * Math.random();
+          dx = distance;
         }
 
-        var yLine = this.size.yLine;
-
-        var _getColor = this._getColor(viewFontSize);
-
-        var _getColor2 = _slicedToArray(_getColor, 2);
-
-        var fontColor = _getColor2[0];
-        var strokeColor = _getColor2[1];
+        if (this.overlapAvoidanceFactor < 1) {
+          distance = Math.max(0.1 + this.overlapAvoidanceFactor * node.shape.radius, distance - node.shape.radius);
+        }
 
-        var _setAlignment = this._setAlignment(ctx, x, yLine, baseline);
+        // the dividing by the distance cubed instead of squared allows us to get the fx and fy components without sines and cosines
+        // it is shorthand for gravityforce with distance squared and fx = dx/distance * gravityForce
+        var gravityForce = this.options.gravitationalConstant * parentBranch.mass * node.options.mass / Math.pow(distance, 3);
+        var fx = dx * gravityForce;
+        var fy = dy * gravityForce;
 
-        var _setAlignment2 = _slicedToArray(_setAlignment, 2);
+        this.physicsBody.forces[node.id].x += fx;
+        this.physicsBody.forces[node.id].y += fy;
+      }
+    }, {
+      key: "_formBarnesHutTree",
 
-        x = _setAlignment2[0];
-        yLine = _setAlignment2[1];
+      /**
+       * This function constructs the barnesHut tree recursively. It creates the root, splits it and starts placing the nodes.
+       *
+       * @param nodes
+       * @param nodeIndices
+       * @private
+       */
+      value: function _formBarnesHutTree(nodes, nodeIndices) {
+        var node = undefined;
+        var nodeCount = nodeIndices.length;
 
-        // configure context for drawing the text
-        ctx.font = (selected ? 'bold ' : '') + fontSize + 'px ' + this.options.font.face;
-        ctx.fillStyle = fontColor;
-        ctx.textAlign = 'center';
+        var minX = nodes[nodeIndices[0]].x;
+        var minY = nodes[nodeIndices[0]].y;
+        var maxX = nodes[nodeIndices[0]].x;
+        var maxY = nodes[nodeIndices[0]].y;
 
-        // set the strokeWidth
-        if (this.options.font.strokeWidth > 0) {
-          ctx.lineWidth = this.options.font.strokeWidth;
-          ctx.strokeStyle = strokeColor;
-          ctx.lineJoin = 'round';
+        // get the range of the nodes
+        for (var i = 1; i < nodeCount; i++) {
+          var x = nodes[nodeIndices[i]].x;
+          var y = nodes[nodeIndices[i]].y;
+          if (nodes[nodeIndices[i]].options.mass > 0) {
+            if (x < minX) {
+              minX = x;
+            }
+            if (x > maxX) {
+              maxX = x;
+            }
+            if (y < minY) {
+              minY = y;
+            }
+            if (y > maxY) {
+              maxY = y;
+            }
+          }
         }
+        // make the range a square
+        var sizeDiff = Math.abs(maxX - minX) - Math.abs(maxY - minY); // difference between X and Y
+        if (sizeDiff > 0) {
+          minY -= 0.5 * sizeDiff;
+          maxY += 0.5 * sizeDiff;
+        } // xSize > ySize
+        else {
+          minX += 0.5 * sizeDiff;
+          maxX -= 0.5 * sizeDiff;
+        } // xSize < ySize
 
-        // draw the text
-        for (var i = 0; i < this.lineCount; i++) {
-          if (this.options.font.strokeWidth > 0) {
-            ctx.strokeText(this.lines[i], x, yLine);
+        var minimumTreeSize = 0.00001;
+        var rootSize = Math.max(minimumTreeSize, Math.abs(maxX - minX));
+        var halfRootSize = 0.5 * rootSize;
+        var centerX = 0.5 * (minX + maxX),
+            centerY = 0.5 * (minY + maxY);
+
+        // construct the barnesHutTree
+        var barnesHutTree = {
+          root: {
+            centerOfMass: { x: 0, y: 0 },
+            mass: 0,
+            range: {
+              minX: centerX - halfRootSize, maxX: centerX + halfRootSize,
+              minY: centerY - halfRootSize, maxY: centerY + halfRootSize
+            },
+            size: rootSize,
+            calcSize: 1 / rootSize,
+            children: { data: null },
+            maxWidth: 0,
+            level: 0,
+            childrenCount: 4
           }
-          ctx.fillText(this.lines[i], x, yLine);
-          yLine += fontSize;
-        }
-      }
-    }, {
-      key: '_setAlignment',
-      value: function _setAlignment(ctx, x, yLine, baseline) {
-        // check for label alignment (for edges)
-        // TODO: make alignment for nodes
-        if (this.options.font.align !== 'horizontal') {
-          x = 0;
-          yLine = 0;
+        };
+        this._splitBranch(barnesHutTree.root);
 
-          var lineMargin = 2;
-          if (this.options.font.align === 'top') {
-            ctx.textBaseline = 'alphabetic';
-            yLine -= 2 * lineMargin; // distance from edge, required because we use alphabetic. Alphabetic has less difference between browsers
-          } else if (this.options.font.align === 'bottom') {
-            ctx.textBaseline = 'hanging';
-            yLine += 2 * lineMargin; // distance from edge, required because we use hanging. Hanging has less difference between browsers
-          } else {
-            ctx.textBaseline = 'middle';
+        // place the nodes one by one recursively
+        for (var i = 0; i < nodeCount; i++) {
+          node = nodes[nodeIndices[i]];
+          if (node.options.mass > 0) {
+            this._placeInTree(barnesHutTree.root, node);
           }
-        } else {
-          ctx.textBaseline = baseline;
         }
 
-        return [x, yLine];
+        // make global
+        return barnesHutTree;
       }
     }, {
-      key: '_getColor',
+      key: "_updateBranchMass",
 
       /**
-       * fade in when relative scale is between threshold and threshold - 1.
-       * If the relative scale would be smaller than threshold -1 the draw function would have returned before coming here.
+       * this updates the mass of a branch. this is increased by adding a node.
        *
-       * @param viewFontSize
-       * @returns {*[]}
+       * @param parentBranch
+       * @param node
        * @private
        */
-      value: function _getColor(viewFontSize) {
-        var fontColor = this.options.font.color || '#000000';
-        var strokeColor = this.options.font.strokeColor || '#ffffff';
-        if (viewFontSize <= this.options.scaling.label.drawThreshold) {
-          var opacity = Math.max(0, Math.min(1, 1 - (this.options.scaling.label.drawThreshold - viewFontSize)));
-          fontColor = util.overrideOpacity(fontColor, opacity);
-          strokeColor = util.overrideOpacity(strokeColor, opacity);
-        }
-        return [fontColor, strokeColor];
+      value: function _updateBranchMass(parentBranch, node) {
+        var totalMass = parentBranch.mass + node.options.mass;
+        var totalMassInv = 1 / totalMass;
+
+        parentBranch.centerOfMass.x = parentBranch.centerOfMass.x * parentBranch.mass + node.x * node.options.mass;
+        parentBranch.centerOfMass.x *= totalMassInv;
+
+        parentBranch.centerOfMass.y = parentBranch.centerOfMass.y * parentBranch.mass + node.y * node.options.mass;
+        parentBranch.centerOfMass.y *= totalMassInv;
+
+        parentBranch.mass = totalMass;
+        var biggestSize = Math.max(Math.max(node.height, node.radius), node.width);
+        parentBranch.maxWidth = parentBranch.maxWidth < biggestSize ? biggestSize : parentBranch.maxWidth;
       }
     }, {
-      key: 'getTextSize',
+      key: "_placeInTree",
 
       /**
+       * determine in which branch the node will be placed.
        *
-       * @param ctx
-       * @param selected
-       * @returns {{width: number, height: number}}
+       * @param parentBranch
+       * @param node
+       * @param skipMassUpdate
+       * @private
        */
-      value: function getTextSize(ctx) {
-        var selected = arguments[1] === undefined ? false : arguments[1];
+      value: function _placeInTree(parentBranch, node, skipMassUpdate) {
+        if (skipMassUpdate != true || skipMassUpdate === undefined) {
+          // update the mass of the branch.
+          this._updateBranchMass(parentBranch, node);
+        }
 
-        var size = {
-          width: this._processLabel(ctx, selected),
-          height: this.options.font.size * this.lineCount,
-          lineCount: this.lineCount
-        };
-        return size;
+        if (parentBranch.children.NW.range.maxX > node.x) {
+          // in NW or SW
+          if (parentBranch.children.NW.range.maxY > node.y) {
+            // in NW
+            this._placeInRegion(parentBranch, node, "NW");
+          } else {
+            // in SW
+            this._placeInRegion(parentBranch, node, "SW");
+          }
+        } else {
+          // in NE or SE
+          if (parentBranch.children.NW.range.maxY > node.y) {
+            // in NE
+            this._placeInRegion(parentBranch, node, "NE");
+          } else {
+            // in SE
+            this._placeInRegion(parentBranch, node, "SE");
+          }
+        }
       }
     }, {
-      key: 'calculateLabelSize',
+      key: "_placeInRegion",
 
       /**
+       * actually place the node in a region (or branch)
        *
-       * @param ctx
-       * @param selected
-       * @param x
-       * @param y
-       * @param baseline
+       * @param parentBranch
+       * @param node
+       * @param region
+       * @private
        */
-      value: function calculateLabelSize(ctx, selected) {
-        var x = arguments[2] === undefined ? 0 : arguments[2];
-        var y = arguments[3] === undefined ? 0 : arguments[3];
-        var baseline = arguments[4] === undefined ? 'middle' : arguments[4];
-
-        if (this.labelDirty === true) {
-          this.size.width = this._processLabel(ctx, selected);
-        }
-        this.size.height = this.options.font.size * this.lineCount;
-        this.size.left = x - this.size.width * 0.5;
-        this.size.top = y - this.size.height * 0.5;
-        this.size.yLine = y + (1 - this.lineCount) * 0.5 * this.options.font.size;
-        if (baseline === 'hanging') {
-          this.size.top += 0.5 * this.options.font.size;
-          this.size.top += 4; // distance from node, required because we use hanging. Hanging has less difference between browsers
-          this.size.yLine += 4; // distance from node
+      value: function _placeInRegion(parentBranch, node, region) {
+        switch (parentBranch.children[region].childrenCount) {
+          case 0:
+            // place node here
+            parentBranch.children[region].children.data = node;
+            parentBranch.children[region].childrenCount = 1;
+            this._updateBranchMass(parentBranch.children[region], node);
+            break;
+          case 1:
+            // convert into children
+            // if there are two nodes exactly overlapping (on init, on opening of cluster etc.)
+            // we move one node a pixel and we do not put it in the tree.
+            if (parentBranch.children[region].children.data.x === node.x && parentBranch.children[region].children.data.y === node.y) {
+              node.x += Math.random();
+              node.y += Math.random();
+            } else {
+              this._splitBranch(parentBranch.children[region]);
+              this._placeInTree(parentBranch.children[region], node);
+            }
+            break;
+          case 4:
+            // place in branch
+            this._placeInTree(parentBranch.children[region], node);
+            break;
         }
-
-        this.labelDirty = false;
       }
     }, {
-      key: '_processLabel',
+      key: "_splitBranch",
 
       /**
-       * This calculates the width as well as explodes the label string and calculates the amount of lines.
-       * @param ctx
-       * @param selected
-       * @returns {number}
+       * this function splits a branch into 4 sub branches. If the branch contained a node, we place it in the subbranch
+       * after the split is complete.
+       *
+       * @param parentBranch
        * @private
        */
-      value: function _processLabel(ctx, selected) {
-        var width = 0;
-        var lines = [''];
-        var lineCount = 0;
-        if (this.options.label !== undefined) {
-          lines = String(this.options.label).split('\n');
-          lineCount = lines.length;
-          ctx.font = (selected ? 'bold ' : '') + this.options.font.size + 'px ' + this.options.font.face;
-          width = ctx.measureText(lines[0]).width;
-          for (var i = 1; i < lineCount; i++) {
-            var lineWidth = ctx.measureText(lines[i]).width;
-            width = lineWidth > width ? lineWidth : width;
-          }
+      value: function _splitBranch(parentBranch) {
+        // if the branch is shaded with a node, replace the node in the new subset.
+        var containedNode = null;
+        if (parentBranch.childrenCount === 1) {
+          containedNode = parentBranch.children.data;
+          parentBranch.mass = 0;
+          parentBranch.centerOfMass.x = 0;
+          parentBranch.centerOfMass.y = 0;
         }
-        this.lines = lines;
-        this.lineCount = lineCount;
+        parentBranch.childrenCount = 4;
+        parentBranch.children.data = null;
+        this._insertRegion(parentBranch, "NW");
+        this._insertRegion(parentBranch, "NE");
+        this._insertRegion(parentBranch, "SW");
+        this._insertRegion(parentBranch, "SE");
 
-        return width;
-      }
-    }], [{
-      key: 'parseOptions',
-      value: function parseOptions(parentOptions, newOptions) {
-        var allowDeletion = arguments[2] === undefined ? false : arguments[2];
-
-        if (typeof newOptions.font === 'string') {
-          var newOptionsArray = newOptions.font.split(' ');
-          parentOptions.size = newOptionsArray[0].replace('px', '');
-          parentOptions.face = newOptionsArray[1];
-          parentOptions.color = newOptionsArray[2];
-        } else if (typeof newOptions.font === 'object') {
-          util.fillIfDefined(parentOptions, newOptions.font, allowDeletion);
-        }
-        parentOptions.size = Number(parentOptions.size);
-      }
-    }]);
-
-    return Label;
-  })();
-
-  exports['default'] = Label;
-  module.exports = exports['default'];
-
-/***/ },
-/* 76 */
-/***/ function(module, exports, __webpack_require__) {
-
-  'use strict';
-
-  Object.defineProperty(exports, '__esModule', {
-    value: true
-  });
-
-  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-  var _sharedLabel = __webpack_require__(75);
-
-  var _sharedLabel2 = _interopRequireDefault(_sharedLabel);
-
-  var _edgesBezierEdgeDynamic = __webpack_require__(104);
-
-  var _edgesBezierEdgeDynamic2 = _interopRequireDefault(_edgesBezierEdgeDynamic);
-
-  var _edgesBezierEdgeStatic = __webpack_require__(105);
-
-  var _edgesBezierEdgeStatic2 = _interopRequireDefault(_edgesBezierEdgeStatic);
-
-  var _edgesStraightEdge = __webpack_require__(106);
-
-  var _edgesStraightEdge2 = _interopRequireDefault(_edgesStraightEdge);
-
-  var util = __webpack_require__(57);
-
-  /**
-   * @class Edge
-   *
-   * A edge connects two nodes
-   * @param {Object} properties     Object with options. Must contain
-   *                                At least options from and to.
-   *                                Available options: from (number),
-   *                                to (number), label (string, color (string),
-   *                                width (number), style (string),
-   *                                length (number), title (string)
-   * @param {Network} network       A Network object, used to find and edge to
-   *                                nodes.
-   * @param {Object} constants      An object with default values for
-   *                                example for the color
-   */
-
-  var Edge = (function () {
-    function Edge(options, body, globalOptions) {
-      _classCallCheck(this, Edge);
-
-      if (body === undefined) {
-        throw 'No body provided';
-      }
-      this.options = util.bridgeObject(globalOptions);
-      this.body = body;
-
-      // initialize variables
-      this.id = undefined;
-      this.fromId = undefined;
-      this.toId = undefined;
-      this.selected = false;
-      this.hover = false;
-      this.labelDirty = true;
-      this.colorDirty = true;
-
-      this.baseWidth = this.options.width;
-      this.baseFontSize = this.options.font.size;
-
-      this.from = undefined; // a node
-      this.to = undefined; // a node
-
-      this.edgeType = undefined;
-
-      this.connected = false;
-
-      this.labelModule = new _sharedLabel2['default'](this.body, this.options);
-
-      this.setOptions(options);
-    }
-
-    _createClass(Edge, [{
-      key: 'setOptions',
-
-      /**
-       * Set or overwrite options for the edge
-       * @param {Object} options  an object with options
-       * @param doNotEmit
-       */
-      value: function setOptions(options) {
-        if (!options) {
-          return;
-        }
-        this.colorDirty = true;
-
-        Edge.parseOptions(this.options, options, true);
-
-        if (options.id !== undefined) {
-          this.id = options.id;
-        }
-        if (options.from !== undefined) {
-          this.fromId = options.from;
-        }
-        if (options.to !== undefined) {
-          this.toId = options.to;
-        }
-        if (options.title !== undefined) {
-          this.title = options.title;
-        }
-        if (options.value !== undefined) {
-          options.value = parseInt(options.value);
-        }
-
-        // A node is connected when it has a from and to node that both exist in the network.body.nodes.
-        this.connect();
-
-        // update label Module
-        this.updateLabelModule();
-
-        var dataChanged = this.updateEdgeType();
-
-        // if anything has been updates, reset the selection width and the hover width
-        this._setInteractionWidths();
-
-        return dataChanged;
-      }
-    }, {
-      key: 'updateLabelModule',
-
-      /**
-       * update the options in the label module
-       */
-      value: function updateLabelModule() {
-        this.labelModule.setOptions(this.options, true);
-        if (this.labelModule.baseSize !== undefined) {
-          this.baseFontSize = this.labelModule.baseSize;
-        }
-      }
-    }, {
-      key: 'updateEdgeType',
-
-      /**
-       * update the edge type, set the options
-       * @returns {boolean}
-       */
-      value: function updateEdgeType() {
-        var dataChanged = false;
-        var changeInType = true;
-        if (this.edgeType !== undefined) {
-          if (this.edgeType instanceof _edgesBezierEdgeDynamic2['default'] && this.options.smooth.enabled === true && this.options.smooth.type === 'dynamic') {
-            changeInType = false;
-          }
-          if (this.edgeType instanceof _edgesBezierEdgeStatic2['default'] && this.options.smooth.enabled === true && this.options.smooth.type !== 'dynamic') {
-            changeInType = false;
-          }
-          if (this.edgeType instanceof _edgesStraightEdge2['default'] && this.options.smooth.enabled === false) {
-            changeInType = false;
-          }
-
-          if (changeInType === true) {
-            dataChanged = this.edgeType.cleanup();
-          }
-        }
-
-        if (changeInType === true) {
-          if (this.options.smooth.enabled === true) {
-            if (this.options.smooth.type === 'dynamic') {
-              dataChanged = true;
-              this.edgeType = new _edgesBezierEdgeDynamic2['default'](this.options, this.body, this.labelModule);
-            } else {
-              this.edgeType = new _edgesBezierEdgeStatic2['default'](this.options, this.body, this.labelModule);
-            }
-          } else {
-            this.edgeType = new _edgesStraightEdge2['default'](this.options, this.body, this.labelModule);
-          }
-        } else {
-          // if nothing changes, we just set the options.
-          this.edgeType.setOptions(this.options);
-        }
-
-        return dataChanged;
-      }
-    }, {
-      key: 'togglePhysics',
-
-      /**
-       * Enable or disable the physics.
-       * @param status
-       */
-      value: function togglePhysics(status) {
-        this.options.physics = status;
-        this.edgeType.togglePhysics(status);
-      }
-    }, {
-      key: 'connect',
-
-      /**
-       * Connect an edge to its nodes
-       */
-      value: function connect() {
-        this.disconnect();
-
-        this.from = this.body.nodes[this.fromId] || undefined;
-        this.to = this.body.nodes[this.toId] || undefined;
-        this.connected = this.from !== undefined && this.to !== undefined;
-
-        if (this.connected === true) {
-          this.from.attachEdge(this);
-          this.to.attachEdge(this);
-        } else {
-          if (this.from) {
-            this.from.detachEdge(this);
-          }
-          if (this.to) {
-            this.to.detachEdge(this);
-          }
-        }
-      }
-    }, {
-      key: 'disconnect',
-
-      /**
-       * Disconnect an edge from its nodes
-       */
-      value: function disconnect() {
-        if (this.from) {
-          this.from.detachEdge(this);
-          this.from = undefined;
-        }
-        if (this.to) {
-          this.to.detachEdge(this);
-          this.to = undefined;
-        }
-
-        this.connected = false;
-      }
-    }, {
-      key: 'getTitle',
-
-      /**
-       * get the title of this edge.
-       * @return {string} title    The title of the edge, or undefined when no title
-       *                           has been set.
-       */
-      value: function getTitle() {
-        return this.title;
-      }
-    }, {
-      key: 'isSelected',
-
-      /**
-       * check if this node is selecte
-       * @return {boolean} selected   True if node is selected, else false
-       */
-      value: function isSelected() {
-        return this.selected;
-      }
-    }, {
-      key: 'getValue',
-
-      /**
-       * Retrieve the value of the edge. Can be undefined
-       * @return {Number} value
-       */
-      value: function getValue() {
-        return this.options.value;
-      }
-    }, {
-      key: 'setValueRange',
-
-      /**
-       * Adjust the value range of the edge. The edge will adjust it's width
-       * based on its value.
-       * @param {Number} min
-       * @param {Number} max
-       * @param total
-       */
-      value: function setValueRange(min, max, total) {
-        if (this.options.value !== undefined) {
-          var scale = this.options.scaling.customScalingFunction(min, max, total, this.options.value);
-          var widthDiff = this.options.scaling.max - this.options.scaling.min;
-          if (this.options.scaling.label.enabled === true) {
-            var fontDiff = this.options.scaling.label.max - this.options.scaling.label.min;
-            this.options.font.size = this.options.scaling.label.min + scale * fontDiff;
-          }
-          this.options.width = this.options.scaling.min + scale * widthDiff;
-        } else {
-          this.options.width = this.baseWidth;
-          this.options.font.size = this.baseFontSize;
-        }
-
-        this._setInteractionWidths();
-      }
-    }, {
-      key: '_setInteractionWidths',
-      value: function _setInteractionWidths() {
-        if (typeof this.options.hoverWidth === 'function') {
-          this.edgeType.hoverWidth = this.options.hoverWidth(this.options.width);
-        } else {
-          this.edgeType.hoverWidth = this.options.hoverWidth + this.options.width;
-        }
-
-        if (typeof this.options.selectionWidth === 'function') {
-          this.edgeType.selectionWidth = this.options.selectionWidth(this.options.width);
-        } else {
-          this.edgeType.selectionWidth = this.options.selectionWidth + this.options.width;
-        }
-      }
-    }, {
-      key: 'draw',
-
-      /**
-       * Redraw a edge
-       * Draw this edge in the given canvas
-       * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
-       * @param {CanvasRenderingContext2D}   ctx
-       */
-      value: function draw(ctx) {
-        var via = this.edgeType.drawLine(ctx, this.selected, this.hover);
-        this.drawArrows(ctx, via);
-        this.drawLabel(ctx, via);
-      }
-    }, {
-      key: 'drawArrows',
-      value: function drawArrows(ctx, viaNode) {
-        if (this.options.arrows.from.enabled === true) {
-          this.edgeType.drawArrowHead(ctx, 'from', viaNode, this.selected, this.hover);
-        }
-        if (this.options.arrows.middle.enabled === true) {
-          this.edgeType.drawArrowHead(ctx, 'middle', viaNode, this.selected, this.hover);
-        }
-        if (this.options.arrows.to.enabled === true) {
-          this.edgeType.drawArrowHead(ctx, 'to', viaNode, this.selected, this.hover);
-        }
-      }
-    }, {
-      key: 'drawLabel',
-      value: function drawLabel(ctx, viaNode) {
-        if (this.options.label !== undefined) {
-          // set style
-          var node1 = this.from;
-          var node2 = this.to;
-          var selected = this.from.selected || this.to.selected || this.selected;
-          if (node1.id != node2.id) {
-            var point = this.edgeType.getPoint(0.5, viaNode);
-            ctx.save();
-
-            // if the label has to be rotated:
-            if (this.options.font.align !== 'horizontal') {
-              this.labelModule.calculateLabelSize(ctx, selected, point.x, point.y);
-              ctx.translate(point.x, this.labelModule.size.yLine);
-              this._rotateForLabelAlignment(ctx);
-            }
-
-            // draw the label
-            this.labelModule.draw(ctx, point.x, point.y, selected);
-            ctx.restore();
-          } else {
-            var x, y;
-            var radius = this.options.selfReferenceSize;
-            if (node1.shape.width > node1.shape.height) {
-              x = node1.x + node1.shape.width * 0.5;
-              y = node1.y - radius;
-            } else {
-              x = node1.x + radius;
-              y = node1.y - node1.shape.height * 0.5;
-            }
-            point = this._pointOnCircle(x, y, radius, 0.125);
-            this.labelModule.draw(ctx, point.x, point.y, selected);
-          }
-        }
-      }
-    }, {
-      key: 'isOverlappingWith',
-
-      /**
-       * Check if this object is overlapping with the provided object
-       * @param {Object} obj   an object with parameters left, top
-       * @return {boolean}     True if location is located on the edge
-       */
-      value: function isOverlappingWith(obj) {
-        if (this.connected) {
-          var distMax = 10;
-          var xFrom = this.from.x;
-          var yFrom = this.from.y;
-          var xTo = this.to.x;
-          var yTo = this.to.y;
-          var xObj = obj.left;
-          var yObj = obj.top;
-
-          var dist = this.edgeType.getDistanceToEdge(xFrom, yFrom, xTo, yTo, xObj, yObj);
-
-          return dist < distMax;
-        } else {
-          return false;
-        }
-      }
-    }, {
-      key: '_rotateForLabelAlignment',
-
-      /**
-       * Rotates the canvas so the text is most readable
-       * @param {CanvasRenderingContext2D} ctx
-       * @private
-       */
-      value: function _rotateForLabelAlignment(ctx) {
-        var dy = this.from.y - this.to.y;
-        var dx = this.from.x - this.to.x;
-        var angleInDegrees = Math.atan2(dy, dx);
-
-        // rotate so label it is readable
-        if (angleInDegrees < -1 && dx < 0 || angleInDegrees > 0 && dx < 0) {
-          angleInDegrees = angleInDegrees + Math.PI;
-        }
-
-        ctx.rotate(angleInDegrees);
-      }
-    }, {
-      key: '_pointOnCircle',
-
-      /**
-       * Get a point on a circle
-       * @param {Number} x
-       * @param {Number} y
-       * @param {Number} radius
-       * @param {Number} percentage. Value between 0 (line start) and 1 (line end)
-       * @return {Object} point
-       * @private
-       */
-      value: function _pointOnCircle(x, y, radius, percentage) {
-        var angle = percentage * 2 * Math.PI;
-        return {
-          x: x + radius * Math.cos(angle),
-          y: y - radius * Math.sin(angle)
-        };
-      }
-    }, {
-      key: 'select',
-      value: function select() {
-        this.selected = true;
-      }
-    }, {
-      key: 'unselect',
-      value: function unselect() {
-        this.selected = false;
-      }
-    }], [{
-      key: 'parseOptions',
-      value: function parseOptions(parentOptions, newOptions) {
-        var allowDeletion = arguments[2] === undefined ? false : arguments[2];
-
-        var fields = ['id', 'from', 'hidden', 'hoverWidth', 'label', 'length', 'line', 'opacity', 'physics', 'selectionWidth', 'selfReferenceSize', 'to', 'title', 'value', 'width'];
-
-        // only deep extend the items in the field array. These do not have shorthand.
-        util.selectiveDeepExtend(fields, parentOptions, newOptions, allowDeletion);
-
-        util.mergeOptions(parentOptions, newOptions, 'smooth');
-        util.mergeOptions(parentOptions, newOptions, 'shadow');
-
-        if (newOptions.dashes !== undefined && newOptions.dashes !== null) {
-          parentOptions.dashes = newOptions.dashes;
-        } else if (allowDeletion === true && newOptions.dashes === null) {
-          parentOptions.dashes = undefined;
-          delete parentOptions.dashes;
-        }
-
-        // set the scaling newOptions
-        if (newOptions.scaling !== undefined && newOptions.scaling !== null) {
-          if (newOptions.scaling.min !== undefined) {
-            parentOptions.scaling.min = newOptions.scaling.min;
-          }
-          if (newOptions.scaling.max !== undefined) {
-            parentOptions.scaling.max = newOptions.scaling.max;
-          }
-          util.mergeOptions(parentOptions.scaling, newOptions.scaling, 'label');
-        } else if (allowDeletion === true && newOptions.scaling === null) {
-          parentOptions.scaling = undefined;
-          delete parentOptions.scaling;
-        }
-
-        // hanlde multiple input cases for arrows
-        if (newOptions.arrows !== undefined && newOptions.arrows !== null) {
-          if (typeof newOptions.arrows === 'string') {
-            var arrows = newOptions.arrows.toLowerCase();
-            if (arrows.indexOf('to') != -1) {
-              parentOptions.arrows.to.enabled = true;
-            }
-            if (arrows.indexOf('middle') != -1) {
-              parentOptions.arrows.middle.enabled = true;
-            }
-            if (arrows.indexOf('from') != -1) {
-              parentOptions.arrows.from.enabled = true;
-            }
-          } else if (typeof newOptions.arrows === 'object') {
-            util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'to');
-            util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'middle');
-            util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'from');
-          } else {
-            throw new Error('The arrow newOptions can only be an object or a string. Refer to the documentation. You used:' + JSON.stringify(newOptions.arrows));
-          }
-        } else if (allowDeletion === true && newOptions.arrows === null) {
-          parentOptions.arrows = undefined;
-          delete parentOptions.arrows;
-        }
-
-        // hanlde multiple input cases for color
-        if (newOptions.color !== undefined && newOptions.color !== null) {
-          if (util.isString(newOptions.color)) {
-            parentOptions.color.color = newOptions.color;
-            parentOptions.color.highlight = newOptions.color;
-            parentOptions.color.hover = newOptions.color;
-            parentOptions.color.inherit = false;
-          } else {
-            var colorsDefined = false;
-            if (newOptions.color.color !== undefined) {
-              parentOptions.color.color = newOptions.color.color;colorsDefined = true;
-            }
-            if (newOptions.color.highlight !== undefined) {
-              parentOptions.color.highlight = newOptions.color.highlight;colorsDefined = true;
-            }
-            if (newOptions.color.hover !== undefined) {
-              parentOptions.color.hover = newOptions.color.hover;colorsDefined = true;
-            }
-            if (newOptions.color.inherit !== undefined) {
-              parentOptions.color.inherit = newOptions.color.inherit;
-            }
-            if (newOptions.color.opacity !== undefined) {
-              parentOptions.color.opacity = Math.min(1, Math.max(0, newOptions.color.opacity));
-            }
-
-            if (newOptions.color.inherit === undefined && colorsDefined === true) {
-              parentOptions.color.inherit = false;
-            }
-          }
-        } else if (allowDeletion === true && newOptions.color === null) {
-          parentOptions.color = undefined;
-          delete parentOptions.color;
-        }
-
-        // handle the font settings
-        if (newOptions.font !== undefined) {
-          _sharedLabel2['default'].parseOptions(parentOptions.font, newOptions);
-        }
-      }
-    }]);
-
-    return Edge;
-  })();
-
-  exports['default'] = Edge;
-  module.exports = exports['default'];
-
-/***/ },
-/* 77 */
-/***/ function(module, exports, __webpack_require__) {
-
-  "use strict";
-
-  Object.defineProperty(exports, "__esModule", {
-    value: true
-  });
-
-  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-  var BarnesHutSolver = (function () {
-    function BarnesHutSolver(body, physicsBody, options) {
-      _classCallCheck(this, BarnesHutSolver);
-
-      this.body = body;
-      this.physicsBody = physicsBody;
-      this.barnesHutTree;
-      this.setOptions(options);
-    }
-
-    _createClass(BarnesHutSolver, [{
-      key: "setOptions",
-      value: function setOptions(options) {
-        this.options = options;
-        this.thetaInversed = 1 / this.options.theta;
-        this.overlapAvoidanceFactor = 1 - Math.max(0, Math.min(1, this.options.avoidOverlap)); // if 1 then min distance = 0.5, if 0.5 then min distance = 0.5 + 0.5*node.shape.radius
-      }
-    }, {
-      key: "solve",
-
-      /**
-       * This function calculates the forces the nodes apply on eachother based on a gravitational model.
-       * The Barnes Hut method is used to speed up this N-body simulation.
-       *
-       * @private
-       */
-      value: function solve() {
-        if (this.options.gravitationalConstant !== 0 && this.physicsBody.physicsNodeIndices.length > 0) {
-          var node = undefined;
-          var nodes = this.body.nodes;
-          var nodeIndices = this.physicsBody.physicsNodeIndices;
-          var nodeCount = nodeIndices.length;
-
-          // create the tree
-          var barnesHutTree = this._formBarnesHutTree(nodes, nodeIndices);
-
-          // for debugging
-          this.barnesHutTree = barnesHutTree;
-
-          // place the nodes one by one recursively
-          for (var i = 0; i < nodeCount; i++) {
-            node = nodes[nodeIndices[i]];
-            if (node.options.mass > 0) {
-              // starting with root is irrelevant, it never passes the BarnesHutSolver condition
-              this._getForceContribution(barnesHutTree.root.children.NW, node);
-              this._getForceContribution(barnesHutTree.root.children.NE, node);
-              this._getForceContribution(barnesHutTree.root.children.SW, node);
-              this._getForceContribution(barnesHutTree.root.children.SE, node);
-            }
-          }
-        }
-      }
-    }, {
-      key: "_getForceContribution",
-
-      /**
-       * This function traverses the barnesHutTree. It checks when it can approximate distant nodes with their center of mass.
-       * If a region contains a single node, we check if it is not itself, then we apply the force.
-       *
-       * @param parentBranch
-       * @param node
-       * @private
-       */
-      value: function _getForceContribution(parentBranch, node) {
-        // we get no force contribution from an empty region
-        if (parentBranch.childrenCount > 0) {
-          var dx = undefined,
-              dy = undefined,
-              distance = undefined;
-
-          // get the distance from the center of mass to the node.
-          dx = parentBranch.centerOfMass.x - node.x;
-          dy = parentBranch.centerOfMass.y - node.y;
-          distance = Math.sqrt(dx * dx + dy * dy);
-
-          // BarnesHutSolver condition
-          // original condition : s/d < theta = passed  ===  d/s > 1/theta = passed
-          // calcSize = 1/s --> d * 1/s > 1/theta = passed
-          if (distance * parentBranch.calcSize > this.thetaInversed) {
-            this._calculateForces(distance, dx, dy, node, parentBranch);
-          } else {
-            // Did not pass the condition, go into children if available
-            if (parentBranch.childrenCount === 4) {
-              this._getForceContribution(parentBranch.children.NW, node);
-              this._getForceContribution(parentBranch.children.NE, node);
-              this._getForceContribution(parentBranch.children.SW, node);
-              this._getForceContribution(parentBranch.children.SE, node);
-            } else {
-              // parentBranch must have only one node, if it was empty we wouldnt be here
-              if (parentBranch.children.data.id != node.id) {
-                // if it is not self
-                this._calculateForces(distance, dx, dy, node, parentBranch);
-              }
-            }
-          }
-        }
-      }
-    }, {
-      key: "_calculateForces",
-
-      /**
-       * Calculate the forces based on the distance.
-       *
-       * @param distance
-       * @param dx
-       * @param dy
-       * @param node
-       * @param parentBranch
-       * @private
-       */
-      value: function _calculateForces(distance, dx, dy, node, parentBranch) {
-        if (distance === 0) {
-          distance = 0.1 * Math.random();
-          dx = distance;
-        }
-
-        if (this.overlapAvoidanceFactor < 1) {
-          distance = Math.max(0.1 + this.overlapAvoidanceFactor * node.shape.radius, distance - node.shape.radius);
-        }
-
-        // the dividing by the distance cubed instead of squared allows us to get the fx and fy components without sines and cosines
-        // it is shorthand for gravityforce with distance squared and fx = dx/distance * gravityForce
-        var gravityForce = this.options.gravitationalConstant * parentBranch.mass * node.options.mass / Math.pow(distance, 3);
-        var fx = dx * gravityForce;
-        var fy = dy * gravityForce;
-
-        this.physicsBody.forces[node.id].x += fx;
-        this.physicsBody.forces[node.id].y += fy;
-      }
-    }, {
-      key: "_formBarnesHutTree",
-
-      /**
-       * This function constructs the barnesHut tree recursively. It creates the root, splits it and starts placing the nodes.
-       *
-       * @param nodes
-       * @param nodeIndices
-       * @private
-       */
-      value: function _formBarnesHutTree(nodes, nodeIndices) {
-        var node = undefined;
-        var nodeCount = nodeIndices.length;
-
-        var minX = nodes[nodeIndices[0]].x;
-        var minY = nodes[nodeIndices[0]].y;
-        var maxX = nodes[nodeIndices[0]].x;
-        var maxY = nodes[nodeIndices[0]].y;
-
-        // get the range of the nodes
-        for (var i = 1; i < nodeCount; i++) {
-          var x = nodes[nodeIndices[i]].x;
-          var y = nodes[nodeIndices[i]].y;
-          if (nodes[nodeIndices[i]].options.mass > 0) {
-            if (x < minX) {
-              minX = x;
-            }
-            if (x > maxX) {
-              maxX = x;
-            }
-            if (y < minY) {
-              minY = y;
-            }
-            if (y > maxY) {
-              maxY = y;
-            }
-          }
-        }
-        // make the range a square
-        var sizeDiff = Math.abs(maxX - minX) - Math.abs(maxY - minY); // difference between X and Y
-        if (sizeDiff > 0) {
-          minY -= 0.5 * sizeDiff;
-          maxY += 0.5 * sizeDiff;
-        } // xSize > ySize
-        else {
-          minX += 0.5 * sizeDiff;
-          maxX -= 0.5 * sizeDiff;
-        } // xSize < ySize
-
-        var minimumTreeSize = 0.00001;
-        var rootSize = Math.max(minimumTreeSize, Math.abs(maxX - minX));
-        var halfRootSize = 0.5 * rootSize;
-        var centerX = 0.5 * (minX + maxX),
-            centerY = 0.5 * (minY + maxY);
-
-        // construct the barnesHutTree
-        var barnesHutTree = {
-          root: {
-            centerOfMass: { x: 0, y: 0 },
-            mass: 0,
-            range: {
-              minX: centerX - halfRootSize, maxX: centerX + halfRootSize,
-              minY: centerY - halfRootSize, maxY: centerY + halfRootSize
-            },
-            size: rootSize,
-            calcSize: 1 / rootSize,
-            children: { data: null },
-            maxWidth: 0,
-            level: 0,
-            childrenCount: 4
-          }
-        };
-        this._splitBranch(barnesHutTree.root);
-
-        // place the nodes one by one recursively
-        for (var i = 0; i < nodeCount; i++) {
-          node = nodes[nodeIndices[i]];
-          if (node.options.mass > 0) {
-            this._placeInTree(barnesHutTree.root, node);
-          }
-        }
-
-        // make global
-        return barnesHutTree;
-      }
-    }, {
-      key: "_updateBranchMass",
-
-      /**
-       * this updates the mass of a branch. this is increased by adding a node.
-       *
-       * @param parentBranch
-       * @param node
-       * @private
-       */
-      value: function _updateBranchMass(parentBranch, node) {
-        var totalMass = parentBranch.mass + node.options.mass;
-        var totalMassInv = 1 / totalMass;
-
-        parentBranch.centerOfMass.x = parentBranch.centerOfMass.x * parentBranch.mass + node.x * node.options.mass;
-        parentBranch.centerOfMass.x *= totalMassInv;
-
-        parentBranch.centerOfMass.y = parentBranch.centerOfMass.y * parentBranch.mass + node.y * node.options.mass;
-        parentBranch.centerOfMass.y *= totalMassInv;
-
-        parentBranch.mass = totalMass;
-        var biggestSize = Math.max(Math.max(node.height, node.radius), node.width);
-        parentBranch.maxWidth = parentBranch.maxWidth < biggestSize ? biggestSize : parentBranch.maxWidth;
-      }
-    }, {
-      key: "_placeInTree",
-
-      /**
-       * determine in which branch the node will be placed.
-       *
-       * @param parentBranch
-       * @param node
-       * @param skipMassUpdate
-       * @private
-       */
-      value: function _placeInTree(parentBranch, node, skipMassUpdate) {
-        if (skipMassUpdate != true || skipMassUpdate === undefined) {
-          // update the mass of the branch.
-          this._updateBranchMass(parentBranch, node);
-        }
-
-        if (parentBranch.children.NW.range.maxX > node.x) {
-          // in NW or SW
-          if (parentBranch.children.NW.range.maxY > node.y) {
-            // in NW
-            this._placeInRegion(parentBranch, node, "NW");
-          } else {
-            // in SW
-            this._placeInRegion(parentBranch, node, "SW");
-          }
-        } else {
-          // in NE or SE
-          if (parentBranch.children.NW.range.maxY > node.y) {
-            // in NE
-            this._placeInRegion(parentBranch, node, "NE");
-          } else {
-            // in SE
-            this._placeInRegion(parentBranch, node, "SE");
-          }
-        }
-      }
-    }, {
-      key: "_placeInRegion",
-
-      /**
-       * actually place the node in a region (or branch)
-       *
-       * @param parentBranch
-       * @param node
-       * @param region
-       * @private
-       */
-      value: function _placeInRegion(parentBranch, node, region) {
-        switch (parentBranch.children[region].childrenCount) {
-          case 0:
-            // place node here
-            parentBranch.children[region].children.data = node;
-            parentBranch.children[region].childrenCount = 1;
-            this._updateBranchMass(parentBranch.children[region], node);
-            break;
-          case 1:
-            // convert into children
-            // if there are two nodes exactly overlapping (on init, on opening of cluster etc.)
-            // we move one node a pixel and we do not put it in the tree.
-            if (parentBranch.children[region].children.data.x === node.x && parentBranch.children[region].children.data.y === node.y) {
-              node.x += Math.random();
-              node.y += Math.random();
-            } else {
-              this._splitBranch(parentBranch.children[region]);
-              this._placeInTree(parentBranch.children[region], node);
-            }
-            break;
-          case 4:
-            // place in branch
-            this._placeInTree(parentBranch.children[region], node);
-            break;
-        }
-      }
-    }, {
-      key: "_splitBranch",
-
-      /**
-       * this function splits a branch into 4 sub branches. If the branch contained a node, we place it in the subbranch
-       * after the split is complete.
-       *
-       * @param parentBranch
-       * @private
-       */
-      value: function _splitBranch(parentBranch) {
-        // if the branch is shaded with a node, replace the node in the new subset.
-        var containedNode = null;
-        if (parentBranch.childrenCount === 1) {
-          containedNode = parentBranch.children.data;
-          parentBranch.mass = 0;
-          parentBranch.centerOfMass.x = 0;
-          parentBranch.centerOfMass.y = 0;
-        }
-        parentBranch.childrenCount = 4;
-        parentBranch.children.data = null;
-        this._insertRegion(parentBranch, "NW");
-        this._insertRegion(parentBranch, "NE");
-        this._insertRegion(parentBranch, "SW");
-        this._insertRegion(parentBranch, "SE");
-
-        if (containedNode != null) {
-          this._placeInTree(parentBranch, containedNode);
-        }
+        if (containedNode != null) {
+          this._placeInTree(parentBranch, containedNode);
+        }
       }
     }, {
       key: "_insertRegion",
@@ -36718,7 +35878,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 78 */
+/* 76 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -36813,7 +35973,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 79 */
+/* 77 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -36904,7 +36064,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 80 */
+/* 78 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -37014,7 +36174,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 81 */
+/* 79 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -37135,7 +36295,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 82 */
+/* 80 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -37204,7 +36364,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 83 */
+/* 81 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -37223,7 +36383,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _BarnesHutSolver2 = __webpack_require__(77);
+  var _BarnesHutSolver2 = __webpack_require__(75);
 
   var _BarnesHutSolver3 = _interopRequireDefault(_BarnesHutSolver2);
 
@@ -37278,7 +36438,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 84 */
+/* 82 */
 /***/ function(module, exports, __webpack_require__) {
 
   "use strict";
@@ -37297,7 +36457,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _CentralGravitySolver2 = __webpack_require__(82);
+  var _CentralGravitySolver2 = __webpack_require__(80);
 
   var _CentralGravitySolver3 = _interopRequireDefault(_CentralGravitySolver2);
 
@@ -37334,7 +36494,7 @@ return /******/ (function(modules) { // webpackBootstrap
   module.exports = exports["default"];
 
 /***/ },
-/* 85 */
+/* 83 */
 /***/ function(module, exports, __webpack_require__) {
 
   'use strict';
@@ -37372,14 +36532,329 @@ return /******/ (function(modules) { // webpackBootstrap
 
     _inherits(Cluster, _Node);
 
-    return Cluster;
-  })(_Node3['default']);
+    return Cluster;
+  })(_Node3['default']);
+
+  exports['default'] = Cluster;
+  module.exports = exports['default'];
+
+/***/ },
+/* 84 */
+/***/ function(module, exports, __webpack_require__) {
+
+  'use strict';
+
+  Object.defineProperty(exports, '__esModule', {
+    value: true
+  });
+
+  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
+
+  function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }
+
+  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
+
+  var util = __webpack_require__(57);
+
+  var Label = (function () {
+    function Label(body, options) {
+      _classCallCheck(this, Label);
+
+      this.body = body;
+
+      this.baseSize = undefined;
+      this.setOptions(options);
+      this.size = { top: 0, left: 0, width: 0, height: 0, yLine: 0 }; // could be cached
+    }
+
+    _createClass(Label, [{
+      key: 'setOptions',
+      value: function setOptions(options) {
+        var allowDeletion = arguments[1] === undefined ? false : arguments[1];
+
+        this.options = options;
+
+        if (options.label !== undefined) {
+          this.labelDirty = true;
+        }
+
+        if (options.font !== undefined) {
+          Label.parseOptions(this.options.font, options, allowDeletion);
+          if (typeof options.font === 'string') {
+            this.baseSize = this.options.font.size;
+          } else if (typeof options.font === 'object') {
+            if (options.font.size !== undefined) {
+              this.baseSize = options.font.size;
+            }
+          }
+        }
+      }
+    }, {
+      key: 'draw',
+
+      /**
+       * Main function. This is called from anything that wants to draw a label.
+       * @param ctx
+       * @param x
+       * @param y
+       * @param selected
+       * @param baseline
+       */
+      value: function draw(ctx, x, y, selected) {
+        var baseline = arguments[4] === undefined ? 'middle' : arguments[4];
+
+        // if no label, return
+        if (this.options.label === undefined) return;
+
+        // check if we have to render the label
+        var viewFontSize = this.options.font.size * this.body.view.scale;
+        if (this.options.label && viewFontSize < this.options.scaling.label.drawThreshold - 1) return;
+
+        // update the size cache if required
+        this.calculateLabelSize(ctx, selected, x, y, baseline);
+
+        // create the fontfill background
+        this._drawBackground(ctx);
+        // draw text
+        this._drawText(ctx, selected, x, y, baseline);
+      }
+    }, {
+      key: '_drawBackground',
+
+      /**
+       * Draws the label background
+       * @param {CanvasRenderingContext2D} ctx
+       * @private
+       */
+      value: function _drawBackground(ctx) {
+        if (this.options.font.background !== undefined && this.options.font.background !== 'none') {
+          ctx.fillStyle = this.options.font.background;
+
+          var lineMargin = 2;
+
+          switch (this.options.font.align) {
+            case 'middle':
+              ctx.fillRect(-this.size.width * 0.5, -this.size.height * 0.5, this.size.width, this.size.height);
+              break;
+            case 'top':
+              ctx.fillRect(-this.size.width * 0.5, -(this.size.height + lineMargin), this.size.width, this.size.height);
+              break;
+            case 'bottom':
+              ctx.fillRect(-this.size.width * 0.5, lineMargin, this.size.width, this.size.height);
+              break;
+            default:
+              ctx.fillRect(this.size.left, this.size.top - 0.5 * lineMargin, this.size.width, this.size.height);
+              break;
+          }
+        }
+      }
+    }, {
+      key: '_drawText',
+
+      /**
+       *
+       * @param ctx
+       * @param x
+       * @param baseline
+       * @private
+       */
+      value: function _drawText(ctx, selected, x, y) {
+        var baseline = arguments[4] === undefined ? 'middle' : arguments[4];
+
+        var fontSize = this.options.font.size;
+        var viewFontSize = fontSize * this.body.view.scale;
+        // this ensures that there will not be HUGE letters on screen by setting an upper limit on the visible text size (regardless of zoomLevel)
+        if (viewFontSize >= this.options.scaling.label.maxVisible) {
+          fontSize = Number(this.options.scaling.label.maxVisible) / this.body.view.scale;
+        }
+
+        var yLine = this.size.yLine;
+
+        var _getColor = this._getColor(viewFontSize);
+
+        var _getColor2 = _slicedToArray(_getColor, 2);
+
+        var fontColor = _getColor2[0];
+        var strokeColor = _getColor2[1];
+
+        var _setAlignment = this._setAlignment(ctx, x, yLine, baseline);
+
+        var _setAlignment2 = _slicedToArray(_setAlignment, 2);
+
+        x = _setAlignment2[0];
+        yLine = _setAlignment2[1];
+
+        // configure context for drawing the text
+        ctx.font = (selected ? 'bold ' : '') + fontSize + 'px ' + this.options.font.face;
+        ctx.fillStyle = fontColor;
+        ctx.textAlign = 'center';
+
+        // set the strokeWidth
+        if (this.options.font.strokeWidth > 0) {
+          ctx.lineWidth = this.options.font.strokeWidth;
+          ctx.strokeStyle = strokeColor;
+          ctx.lineJoin = 'round';
+        }
+
+        // draw the text
+        for (var i = 0; i < this.lineCount; i++) {
+          if (this.options.font.strokeWidth > 0) {
+            ctx.strokeText(this.lines[i], x, yLine);
+          }
+          ctx.fillText(this.lines[i], x, yLine);
+          yLine += fontSize;
+        }
+      }
+    }, {
+      key: '_setAlignment',
+      value: function _setAlignment(ctx, x, yLine, baseline) {
+        // check for label alignment (for edges)
+        // TODO: make alignment for nodes
+        if (this.options.font.align !== 'horizontal') {
+          x = 0;
+          yLine = 0;
+
+          var lineMargin = 2;
+          if (this.options.font.align === 'top') {
+            ctx.textBaseline = 'alphabetic';
+            yLine -= 2 * lineMargin; // distance from edge, required because we use alphabetic. Alphabetic has less difference between browsers
+          } else if (this.options.font.align === 'bottom') {
+            ctx.textBaseline = 'hanging';
+            yLine += 2 * lineMargin; // distance from edge, required because we use hanging. Hanging has less difference between browsers
+          } else {
+            ctx.textBaseline = 'middle';
+          }
+        } else {
+          ctx.textBaseline = baseline;
+        }
+
+        return [x, yLine];
+      }
+    }, {
+      key: '_getColor',
+
+      /**
+       * fade in when relative scale is between threshold and threshold - 1.
+       * If the relative scale would be smaller than threshold -1 the draw function would have returned before coming here.
+       *
+       * @param viewFontSize
+       * @returns {*[]}
+       * @private
+       */
+      value: function _getColor(viewFontSize) {
+        var fontColor = this.options.font.color || '#000000';
+        var strokeColor = this.options.font.strokeColor || '#ffffff';
+        if (viewFontSize <= this.options.scaling.label.drawThreshold) {
+          var opacity = Math.max(0, Math.min(1, 1 - (this.options.scaling.label.drawThreshold - viewFontSize)));
+          fontColor = util.overrideOpacity(fontColor, opacity);
+          strokeColor = util.overrideOpacity(strokeColor, opacity);
+        }
+        return [fontColor, strokeColor];
+      }
+    }, {
+      key: 'getTextSize',
+
+      /**
+       *
+       * @param ctx
+       * @param selected
+       * @returns {{width: number, height: number}}
+       */
+      value: function getTextSize(ctx) {
+        var selected = arguments[1] === undefined ? false : arguments[1];
+
+        var size = {
+          width: this._processLabel(ctx, selected),
+          height: this.options.font.size * this.lineCount,
+          lineCount: this.lineCount
+        };
+        return size;
+      }
+    }, {
+      key: 'calculateLabelSize',
+
+      /**
+       *
+       * @param ctx
+       * @param selected
+       * @param x
+       * @param y
+       * @param baseline
+       */
+      value: function calculateLabelSize(ctx, selected) {
+        var x = arguments[2] === undefined ? 0 : arguments[2];
+        var y = arguments[3] === undefined ? 0 : arguments[3];
+        var baseline = arguments[4] === undefined ? 'middle' : arguments[4];
+
+        if (this.labelDirty === true) {
+          this.size.width = this._processLabel(ctx, selected);
+        }
+        this.size.height = this.options.font.size * this.lineCount;
+        this.size.left = x - this.size.width * 0.5;
+        this.size.top = y - this.size.height * 0.5;
+        this.size.yLine = y + (1 - this.lineCount) * 0.5 * this.options.font.size;
+        if (baseline === 'hanging') {
+          this.size.top += 0.5 * this.options.font.size;
+          this.size.top += 4; // distance from node, required because we use hanging. Hanging has less difference between browsers
+          this.size.yLine += 4; // distance from node
+        }
+
+        this.labelDirty = false;
+      }
+    }, {
+      key: '_processLabel',
+
+      /**
+       * This calculates the width as well as explodes the label string and calculates the amount of lines.
+       * @param ctx
+       * @param selected
+       * @returns {number}
+       * @private
+       */
+      value: function _processLabel(ctx, selected) {
+        var width = 0;
+        var lines = [''];
+        var lineCount = 0;
+        if (this.options.label !== undefined) {
+          lines = String(this.options.label).split('\n');
+          lineCount = lines.length;
+          ctx.font = (selected ? 'bold ' : '') + this.options.font.size + 'px ' + this.options.font.face;
+          width = ctx.measureText(lines[0]).width;
+          for (var i = 1; i < lineCount; i++) {
+            var lineWidth = ctx.measureText(lines[i]).width;
+            width = lineWidth > width ? lineWidth : width;
+          }
+        }
+        this.lines = lines;
+        this.lineCount = lineCount;
+
+        return width;
+      }
+    }], [{
+      key: 'parseOptions',
+      value: function parseOptions(parentOptions, newOptions) {
+        var allowDeletion = arguments[2] === undefined ? false : arguments[2];
+
+        if (typeof newOptions.font === 'string') {
+          var newOptionsArray = newOptions.font.split(' ');
+          parentOptions.size = newOptionsArray[0].replace('px', '');
+          parentOptions.face = newOptionsArray[1];
+          parentOptions.color = newOptionsArray[2];
+        } else if (typeof newOptions.font === 'object') {
+          util.fillIfDefined(parentOptions, newOptions.font, allowDeletion);
+        }
+        parentOptions.size = Number(parentOptions.size);
+      }
+    }]);
+
+    return Label;
+  })();
 
-  exports['default'] = Cluster;
+  exports['default'] = Label;
   module.exports = exports['default'];
 
 /***/ },
-/* 86 */
+/* 85 */
 /***/ function(module, exports, __webpack_require__) {
 
   'use strict';
@@ -37462,8 +36937,6 @@ return /******/ (function(modules) { // webpackBootstrap
           this.navigationHammers = [];
         }
 
-        this._navigationReleaseOverload = function () {};
-
         // clean up previous navigation items
         if (this.navigationDOM && this.navigationDOM['wrapper'] && this.navigationDOM['wrapper'].parentNode) {
           this.navigationDOM['wrapper'].parentNode.removeChild(this.navigationDOM['wrapper']);
@@ -37544,234 +37017,790 @@ return /******/ (function(modules) { // webpackBootstrap
         }
       }
     }, {
-      key: '_stopMovement',
+      key: '_stopMovement',
+
+      /**
+       * this stops all movement induced by the navigation buttons
+       *
+       * @private
+       */
+      value: function _stopMovement() {
+        for (var boundAction in this.boundFunctions) {
+          if (this.boundFunctions.hasOwnProperty(boundAction)) {
+            this.body.emitter.off('initRedraw', this.boundFunctions[boundAction]);
+            this.body.emitter.emit('_stopRendering');
+          }
+        }
+        this.boundFunctions = {};
+      }
+    }, {
+      key: '_moveUp',
+      value: function _moveUp() {
+        this.body.view.translation.y += this.options.keyboard.speed.y;
+      }
+    }, {
+      key: '_moveDown',
+      value: function _moveDown() {
+        this.body.view.translation.y -= this.options.keyboard.speed.y;
+      }
+    }, {
+      key: '_moveLeft',
+      value: function _moveLeft() {
+        this.body.view.translation.x += this.options.keyboard.speed.x;
+      }
+    }, {
+      key: '_moveRight',
+      value: function _moveRight() {
+        this.body.view.translation.x -= this.options.keyboard.speed.x;
+      }
+    }, {
+      key: '_zoomIn',
+      value: function _zoomIn() {
+        this.body.view.scale *= 1 + this.options.keyboard.speed.zoom;
+      }
+    }, {
+      key: '_zoomOut',
+      value: function _zoomOut() {
+        this.body.view.scale /= 1 + this.options.keyboard.speed.zoom;
+      }
+    }, {
+      key: 'configureKeyboardBindings',
+
+      /**
+       * bind all keys using keycharm.
+       */
+      value: function configureKeyboardBindings() {
+        if (this.keycharm !== undefined) {
+          this.keycharm.destroy();
+        }
+
+        if (this.options.keyboard.enabled === true) {
+          if (this.options.keyboard.bindToWindow === true) {
+            this.keycharm = keycharm({ container: window, preventDefault: true });
+          } else {
+            this.keycharm = keycharm({ container: this.canvas.frame, preventDefault: true });
+          }
+
+          this.keycharm.reset();
+
+          if (this.activated === true) {
+            this.keycharm.bind('up', this.bindToRedraw.bind(this, '_moveUp'), 'keydown');
+            this.keycharm.bind('down', this.bindToRedraw.bind(this, '_moveDown'), 'keydown');
+            this.keycharm.bind('left', this.bindToRedraw.bind(this, '_moveLeft'), 'keydown');
+            this.keycharm.bind('right', this.bindToRedraw.bind(this, '_moveRight'), 'keydown');
+            this.keycharm.bind('=', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
+            this.keycharm.bind('num+', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
+            this.keycharm.bind('num-', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
+            this.keycharm.bind('-', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
+            this.keycharm.bind('[', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
+            this.keycharm.bind(']', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
+            this.keycharm.bind('pageup', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
+            this.keycharm.bind('pagedown', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
+
+            this.keycharm.bind('up', this.unbindFromRedraw.bind(this, '_moveUp'), 'keyup');
+            this.keycharm.bind('down', this.unbindFromRedraw.bind(this, '_moveDown'), 'keyup');
+            this.keycharm.bind('left', this.unbindFromRedraw.bind(this, '_moveLeft'), 'keyup');
+            this.keycharm.bind('right', this.unbindFromRedraw.bind(this, '_moveRight'), 'keyup');
+            this.keycharm.bind('=', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
+            this.keycharm.bind('num+', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
+            this.keycharm.bind('num-', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
+            this.keycharm.bind('-', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
+            this.keycharm.bind('[', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
+            this.keycharm.bind(']', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
+            this.keycharm.bind('pageup', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
+            this.keycharm.bind('pagedown', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
+          }
+        }
+      }
+    }]);
+
+    return NavigationHandler;
+  })();
+
+  exports['default'] = NavigationHandler;
+  module.exports = exports['default'];
+
+/***/ },
+/* 86 */
+/***/ function(module, exports, __webpack_require__) {
+
+  /**
+   * Popup is a class to create a popup window with some text
+   * @param {Element}  container     The container object.
+   * @param {Number} [x]
+   * @param {Number} [y]
+   * @param {String} [text]
+   * @param {Object} [style]     An object containing borderColor,
+   *                             backgroundColor, etc.
+   */
+  'use strict';
+
+  Object.defineProperty(exports, '__esModule', {
+    value: true
+  });
+
+  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
+
+  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
+
+  var Popup = (function () {
+    function Popup(container) {
+      _classCallCheck(this, Popup);
+
+      this.container = container;
+
+      this.x = 0;
+      this.y = 0;
+      this.padding = 5;
+      this.hidden = false;
+
+      // create the frame
+      this.frame = document.createElement('div');
+      this.frame.className = 'vis-network-tooltip';
+      this.container.appendChild(this.frame);
+    }
+
+    _createClass(Popup, [{
+      key: 'setPosition',
+
+      /**
+       * @param {number} x   Horizontal position of the popup window
+       * @param {number} y   Vertical position of the popup window
+       */
+      value: function setPosition(x, y) {
+        this.x = parseInt(x);
+        this.y = parseInt(y);
+      }
+    }, {
+      key: 'setText',
+
+      /**
+       * Set the content for the popup window. This can be HTML code or text.
+       * @param {string | Element} content
+       */
+      value: function setText(content) {
+        if (content instanceof Element) {
+          this.frame.innerHTML = '';
+          this.frame.appendChild(content);
+        } else {
+          this.frame.innerHTML = content; // string containing text or HTML
+        }
+      }
+    }, {
+      key: 'show',
+
+      /**
+       * Show the popup window
+       * @param {boolean} [doShow]    Show or hide the window
+       */
+      value: function show(doShow) {
+        if (doShow === undefined) {
+          doShow = true;
+        }
+
+        if (doShow === true) {
+          var height = this.frame.clientHeight;
+          var width = this.frame.clientWidth;
+          var maxHeight = this.frame.parentNode.clientHeight;
+          var maxWidth = this.frame.parentNode.clientWidth;
+
+          var top = this.y - height;
+          if (top + height + this.padding > maxHeight) {
+            top = maxHeight - height - this.padding;
+          }
+          if (top < this.padding) {
+            top = this.padding;
+          }
+
+          var left = this.x;
+          if (left + width + this.padding > maxWidth) {
+            left = maxWidth - width - this.padding;
+          }
+          if (left < this.padding) {
+            left = this.padding;
+          }
+
+          this.frame.style.left = left + 'px';
+          this.frame.style.top = top + 'px';
+          this.frame.style.visibility = 'visible';
+          this.hidden = false;
+        } else {
+          this.hide();
+        }
+      }
+    }, {
+      key: 'hide',
+
+      /**
+       * Hide the popup window
+       */
+      value: function hide() {
+        this.hidden = true;
+        this.frame.style.visibility = 'hidden';
+      }
+    }]);
+
+    return Popup;
+  })();
+
+  exports['default'] = Popup;
+  module.exports = exports['default'];
+
+/***/ },
+/* 87 */
+/***/ function(module, exports, __webpack_require__) {
+
+  'use strict';
+
+  Object.defineProperty(exports, '__esModule', {
+    value: true
+  });
+
+  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
+
+  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
+
+  var _sharedLabel = __webpack_require__(84);
+
+  var _sharedLabel2 = _interopRequireDefault(_sharedLabel);
+
+  var _edgesBezierEdgeDynamic = __webpack_require__(104);
+
+  var _edgesBezierEdgeDynamic2 = _interopRequireDefault(_edgesBezierEdgeDynamic);
+
+  var _edgesBezierEdgeStatic = __webpack_require__(105);
+
+  var _edgesBezierEdgeStatic2 = _interopRequireDefault(_edgesBezierEdgeStatic);
+
+  var _edgesStraightEdge = __webpack_require__(106);
+
+  var _edgesStraightEdge2 = _interopRequireDefault(_edgesStraightEdge);
+
+  var util = __webpack_require__(57);
+
+  /**
+   * @class Edge
+   *
+   * A edge connects two nodes
+   * @param {Object} properties     Object with options. Must contain
+   *                                At least options from and to.
+   *                                Available options: from (number),
+   *                                to (number), label (string, color (string),
+   *                                width (number), style (string),
+   *                                length (number), title (string)
+   * @param {Network} network       A Network object, used to find and edge to
+   *                                nodes.
+   * @param {Object} constants      An object with default values for
+   *                                example for the color
+   */
+
+  var Edge = (function () {
+    function Edge(options, body, globalOptions) {
+      _classCallCheck(this, Edge);
+
+      if (body === undefined) {
+        throw 'No body provided';
+      }
+      this.options = util.bridgeObject(globalOptions);
+      this.body = body;
+
+      // initialize variables
+      this.id = undefined;
+      this.fromId = undefined;
+      this.toId = undefined;
+      this.selected = false;
+      this.hover = false;
+      this.labelDirty = true;
+      this.colorDirty = true;
+
+      this.baseWidth = this.options.width;
+      this.baseFontSize = this.options.font.size;
+
+      this.from = undefined; // a node
+      this.to = undefined; // a node
+
+      this.edgeType = undefined;
+
+      this.connected = false;
+
+      this.labelModule = new _sharedLabel2['default'](this.body, this.options);
+
+      this.setOptions(options);
+    }
+
+    _createClass(Edge, [{
+      key: 'setOptions',
+
+      /**
+       * Set or overwrite options for the edge
+       * @param {Object} options  an object with options
+       * @param doNotEmit
+       */
+      value: function setOptions(options) {
+        if (!options) {
+          return;
+        }
+        this.colorDirty = true;
+
+        Edge.parseOptions(this.options, options, true);
+
+        if (options.id !== undefined) {
+          this.id = options.id;
+        }
+        if (options.from !== undefined) {
+          this.fromId = options.from;
+        }
+        if (options.to !== undefined) {
+          this.toId = options.to;
+        }
+        if (options.title !== undefined) {
+          this.title = options.title;
+        }
+        if (options.value !== undefined) {
+          options.value = parseInt(options.value);
+        }
+
+        // update label Module
+        this.updateLabelModule();
+
+        var dataChanged = this.updateEdgeType();
+
+        // if anything has been updates, reset the selection width and the hover width
+        this._setInteractionWidths();
+
+        // A node is connected when it has a from and to node that both exist in the network.body.nodes.
+        this.connect();
+
+        return dataChanged;
+      }
+    }, {
+      key: 'updateLabelModule',
+
+      /**
+       * update the options in the label module
+       */
+      value: function updateLabelModule() {
+        this.labelModule.setOptions(this.options, true);
+        if (this.labelModule.baseSize !== undefined) {
+          this.baseFontSize = this.labelModule.baseSize;
+        }
+      }
+    }, {
+      key: 'updateEdgeType',
+
+      /**
+       * update the edge type, set the options
+       * @returns {boolean}
+       */
+      value: function updateEdgeType() {
+        var dataChanged = false;
+        var changeInType = true;
+        if (this.edgeType !== undefined) {
+          if (this.edgeType instanceof _edgesBezierEdgeDynamic2['default'] && this.options.smooth.enabled === true && this.options.smooth.type === 'dynamic') {
+            changeInType = false;
+          }
+          if (this.edgeType instanceof _edgesBezierEdgeStatic2['default'] && this.options.smooth.enabled === true && this.options.smooth.type !== 'dynamic') {
+            changeInType = false;
+          }
+          if (this.edgeType instanceof _edgesStraightEdge2['default'] && this.options.smooth.enabled === false) {
+            changeInType = false;
+          }
+
+          if (changeInType === true) {
+            dataChanged = this.edgeType.cleanup();
+          }
+        }
+
+        if (changeInType === true) {
+          if (this.options.smooth.enabled === true) {
+            if (this.options.smooth.type === 'dynamic') {
+              dataChanged = true;
+              this.edgeType = new _edgesBezierEdgeDynamic2['default'](this.options, this.body, this.labelModule);
+            } else {
+              this.edgeType = new _edgesBezierEdgeStatic2['default'](this.options, this.body, this.labelModule);
+            }
+          } else {
+            this.edgeType = new _edgesStraightEdge2['default'](this.options, this.body, this.labelModule);
+          }
+        } else {
+          // if nothing changes, we just set the options.
+          this.edgeType.setOptions(this.options);
+        }
+
+        return dataChanged;
+      }
+    }, {
+      key: 'togglePhysics',
+
+      /**
+       * Enable or disable the physics.
+       * @param status
+       */
+      value: function togglePhysics(status) {
+        this.options.physics = status;
+        this.edgeType.togglePhysics(status);
+      }
+    }, {
+      key: 'connect',
+
+      /**
+       * Connect an edge to its nodes
+       */
+      value: function connect() {
+        this.disconnect();
+
+        this.from = this.body.nodes[this.fromId] || undefined;
+        this.to = this.body.nodes[this.toId] || undefined;
+        this.connected = this.from !== undefined && this.to !== undefined;
+
+        if (this.connected === true) {
+          this.from.attachEdge(this);
+          this.to.attachEdge(this);
+        } else {
+          if (this.from) {
+            this.from.detachEdge(this);
+          }
+          if (this.to) {
+            this.to.detachEdge(this);
+          }
+        }
+
+        this.edgeType.connect();
+      }
+    }, {
+      key: 'disconnect',
+
+      /**
+       * Disconnect an edge from its nodes
+       */
+      value: function disconnect() {
+        if (this.from) {
+          this.from.detachEdge(this);
+          this.from = undefined;
+        }
+        if (this.to) {
+          this.to.detachEdge(this);
+          this.to = undefined;
+        }
+
+        this.connected = false;
+      }
+    }, {
+      key: 'getTitle',
+
+      /**
+       * get the title of this edge.
+       * @return {string} title    The title of the edge, or undefined when no title
+       *                           has been set.
+       */
+      value: function getTitle() {
+        return this.title;
+      }
+    }, {
+      key: 'isSelected',
+
+      /**
+       * check if this node is selecte
+       * @return {boolean} selected   True if node is selected, else false
+       */
+      value: function isSelected() {
+        return this.selected;
+      }
+    }, {
+      key: 'getValue',
+
+      /**
+       * Retrieve the value of the edge. Can be undefined
+       * @return {Number} value
+       */
+      value: function getValue() {
+        return this.options.value;
+      }
+    }, {
+      key: 'setValueRange',
 
       /**
-       * this stops all movement induced by the navigation buttons
-       *
-       * @private
+       * Adjust the value range of the edge. The edge will adjust it's width
+       * based on its value.
+       * @param {Number} min
+       * @param {Number} max
+       * @param total
        */
-      value: function _stopMovement() {
-        for (var boundAction in this.boundFunctions) {
-          if (this.boundFunctions.hasOwnProperty(boundAction)) {
-            this.body.emitter.off('initRedraw', this.boundFunctions[boundAction]);
-            this.body.emitter.emit('_stopRendering');
+      value: function setValueRange(min, max, total) {
+        if (this.options.value !== undefined) {
+          var scale = this.options.scaling.customScalingFunction(min, max, total, this.options.value);
+          var widthDiff = this.options.scaling.max - this.options.scaling.min;
+          if (this.options.scaling.label.enabled === true) {
+            var fontDiff = this.options.scaling.label.max - this.options.scaling.label.min;
+            this.options.font.size = this.options.scaling.label.min + scale * fontDiff;
           }
+          this.options.width = this.options.scaling.min + scale * widthDiff;
+        } else {
+          this.options.width = this.baseWidth;
+          this.options.font.size = this.baseFontSize;
         }
-        this.boundFunctions = {};
-      }
-    }, {
-      key: '_moveUp',
-      value: function _moveUp() {
-        this.body.view.translation.y += this.options.keyboard.speed.y;
-      }
-    }, {
-      key: '_moveDown',
-      value: function _moveDown() {
-        this.body.view.translation.y -= this.options.keyboard.speed.y;
-      }
-    }, {
-      key: '_moveLeft',
-      value: function _moveLeft() {
-        this.body.view.translation.x += this.options.keyboard.speed.x;
-      }
-    }, {
-      key: '_moveRight',
-      value: function _moveRight() {
-        this.body.view.translation.x -= this.options.keyboard.speed.x;
-      }
-    }, {
-      key: '_zoomIn',
-      value: function _zoomIn() {
-        this.body.view.scale *= 1 + this.options.keyboard.speed.zoom;
+
+        this._setInteractionWidths();
       }
     }, {
-      key: '_zoomOut',
-      value: function _zoomOut() {
-        this.body.view.scale /= 1 + this.options.keyboard.speed.zoom;
+      key: '_setInteractionWidths',
+      value: function _setInteractionWidths() {
+        if (typeof this.options.hoverWidth === 'function') {
+          this.edgeType.hoverWidth = this.options.hoverWidth(this.options.width);
+        } else {
+          this.edgeType.hoverWidth = this.options.hoverWidth + this.options.width;
+        }
+
+        if (typeof this.options.selectionWidth === 'function') {
+          this.edgeType.selectionWidth = this.options.selectionWidth(this.options.width);
+        } else {
+          this.edgeType.selectionWidth = this.options.selectionWidth + this.options.width;
+        }
       }
     }, {
-      key: 'configureKeyboardBindings',
+      key: 'draw',
 
       /**
-       * bind all keys using keycharm.
+       * Redraw a edge
+       * Draw this edge in the given canvas
+       * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
+       * @param {CanvasRenderingContext2D}   ctx
        */
-      value: function configureKeyboardBindings() {
-        if (this.keycharm !== undefined) {
-          this.keycharm.destroy();
+      value: function draw(ctx) {
+        var via = this.edgeType.drawLine(ctx, this.selected, this.hover);
+        this.drawArrows(ctx, via);
+        this.drawLabel(ctx, via);
+      }
+    }, {
+      key: 'drawArrows',
+      value: function drawArrows(ctx, viaNode) {
+        if (this.options.arrows.from.enabled === true) {
+          this.edgeType.drawArrowHead(ctx, 'from', viaNode, this.selected, this.hover);
+        }
+        if (this.options.arrows.middle.enabled === true) {
+          this.edgeType.drawArrowHead(ctx, 'middle', viaNode, this.selected, this.hover);
+        }
+        if (this.options.arrows.to.enabled === true) {
+          this.edgeType.drawArrowHead(ctx, 'to', viaNode, this.selected, this.hover);
         }
+      }
+    }, {
+      key: 'drawLabel',
+      value: function drawLabel(ctx, viaNode) {
+        if (this.options.label !== undefined) {
+          // set style
+          var node1 = this.from;
+          var node2 = this.to;
+          var selected = this.from.selected || this.to.selected || this.selected;
+          if (node1.id != node2.id) {
+            var point = this.edgeType.getPoint(0.5, viaNode);
+            ctx.save();
 
-        if (this.options.keyboard.enabled === true) {
+            // if the label has to be rotated:
+            if (this.options.font.align !== 'horizontal') {
+              this.labelModule.calculateLabelSize(ctx, selected, point.x, point.y);
+              ctx.translate(point.x, this.labelModule.size.yLine);
+              this._rotateForLabelAlignment(ctx);
+            }
 
-          if (this.options.keyboard.bindToWindow === true) {
-            this.keycharm = keycharm({ container: window, preventDefault: true });
+            // draw the label
+            this.labelModule.draw(ctx, point.x, point.y, selected);
+            ctx.restore();
           } else {
-            this.keycharm = keycharm({ container: this.canvas.frame, preventDefault: true });
-          }
-
-          this.keycharm.reset();
-
-          if (this.activated === true) {
-            this.keycharm.bind('up', this.bindToRedraw.bind(this, '_moveUp'), 'keydown');
-            this.keycharm.bind('down', this.bindToRedraw.bind(this, '_moveDown'), 'keydown');
-            this.keycharm.bind('left', this.bindToRedraw.bind(this, '_moveLeft'), 'keydown');
-            this.keycharm.bind('right', this.bindToRedraw.bind(this, '_moveRight'), 'keydown');
-            this.keycharm.bind('=', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
-            this.keycharm.bind('num+', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
-            this.keycharm.bind('num-', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
-            this.keycharm.bind('-', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
-            this.keycharm.bind('[', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
-            this.keycharm.bind(']', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
-            this.keycharm.bind('pageup', this.bindToRedraw.bind(this, '_zoomIn'), 'keydown');
-            this.keycharm.bind('pagedown', this.bindToRedraw.bind(this, '_zoomOut'), 'keydown');
-
-            this.keycharm.bind('up', this.unbindFromRedraw.bind(this, '_moveUp'), 'keyup');
-            this.keycharm.bind('down', this.unbindFromRedraw.bind(this, '_moveDown'), 'keyup');
-            this.keycharm.bind('left', this.unbindFromRedraw.bind(this, '_moveLeft'), 'keyup');
-            this.keycharm.bind('right', this.unbindFromRedraw.bind(this, '_moveRight'), 'keyup');
-            this.keycharm.bind('=', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
-            this.keycharm.bind('num+', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
-            this.keycharm.bind('num-', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
-            this.keycharm.bind('-', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
-            this.keycharm.bind('[', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
-            this.keycharm.bind(']', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
-            this.keycharm.bind('pageup', this.unbindFromRedraw.bind(this, '_zoomIn'), 'keyup');
-            this.keycharm.bind('pagedown', this.unbindFromRedraw.bind(this, '_zoomOut'), 'keyup');
+            var x, y;
+            var radius = this.options.selfReferenceSize;
+            if (node1.shape.width > node1.shape.height) {
+              x = node1.x + node1.shape.width * 0.5;
+              y = node1.y - radius;
+            } else {
+              x = node1.x + radius;
+              y = node1.y - node1.shape.height * 0.5;
+            }
+            point = this._pointOnCircle(x, y, radius, 0.125);
+            this.labelModule.draw(ctx, point.x, point.y, selected);
           }
         }
       }
-    }]);
-
-    return NavigationHandler;
-  })();
-
-  exports['default'] = NavigationHandler;
-  module.exports = exports['default'];
-
-/***/ },
-/* 87 */
-/***/ function(module, exports, __webpack_require__) {
-
-  /**
-   * Popup is a class to create a popup window with some text
-   * @param {Element}  container     The container object.
-   * @param {Number} [x]
-   * @param {Number} [y]
-   * @param {String} [text]
-   * @param {Object} [style]     An object containing borderColor,
-   *                             backgroundColor, etc.
-   */
-  'use strict';
-
-  Object.defineProperty(exports, '__esModule', {
-    value: true
-  });
-
-  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-  var Popup = (function () {
-    function Popup(container) {
-      _classCallCheck(this, Popup);
-
-      this.container = container;
-
-      this.x = 0;
-      this.y = 0;
-      this.padding = 5;
-      this.hidden = false;
-
-      // create the frame
-      this.frame = document.createElement('div');
-      this.frame.className = 'vis-network-tooltip';
-      this.container.appendChild(this.frame);
-    }
-
-    _createClass(Popup, [{
-      key: 'setPosition',
+    }, {
+      key: 'isOverlappingWith',
 
       /**
-       * @param {number} x   Horizontal position of the popup window
-       * @param {number} y   Vertical position of the popup window
+       * Check if this object is overlapping with the provided object
+       * @param {Object} obj   an object with parameters left, top
+       * @return {boolean}     True if location is located on the edge
        */
-      value: function setPosition(x, y) {
-        this.x = parseInt(x);
-        this.y = parseInt(y);
+      value: function isOverlappingWith(obj) {
+        if (this.connected) {
+          var distMax = 10;
+          var xFrom = this.from.x;
+          var yFrom = this.from.y;
+          var xTo = this.to.x;
+          var yTo = this.to.y;
+          var xObj = obj.left;
+          var yObj = obj.top;
+
+          var dist = this.edgeType.getDistanceToEdge(xFrom, yFrom, xTo, yTo, xObj, yObj);
+
+          return dist < distMax;
+        } else {
+          return false;
+        }
       }
     }, {
-      key: 'setText',
+      key: '_rotateForLabelAlignment',
 
       /**
-       * Set the content for the popup window. This can be HTML code or text.
-       * @param {string | Element} content
+       * Rotates the canvas so the text is most readable
+       * @param {CanvasRenderingContext2D} ctx
+       * @private
        */
-      value: function setText(content) {
-        if (content instanceof Element) {
-          this.frame.innerHTML = '';
-          this.frame.appendChild(content);
-        } else {
-          this.frame.innerHTML = content; // string containing text or HTML
+      value: function _rotateForLabelAlignment(ctx) {
+        var dy = this.from.y - this.to.y;
+        var dx = this.from.x - this.to.x;
+        var angleInDegrees = Math.atan2(dy, dx);
+
+        // rotate so label it is readable
+        if (angleInDegrees < -1 && dx < 0 || angleInDegrees > 0 && dx < 0) {
+          angleInDegrees = angleInDegrees + Math.PI;
         }
+
+        ctx.rotate(angleInDegrees);
       }
     }, {
-      key: 'show',
+      key: '_pointOnCircle',
 
       /**
-       * Show the popup window
-       * @param {boolean} [doShow]    Show or hide the window
+       * Get a point on a circle
+       * @param {Number} x
+       * @param {Number} y
+       * @param {Number} radius
+       * @param {Number} percentage. Value between 0 (line start) and 1 (line end)
+       * @return {Object} point
+       * @private
        */
-      value: function show(doShow) {
-        if (doShow === undefined) {
-          doShow = true;
-        }
+      value: function _pointOnCircle(x, y, radius, percentage) {
+        var angle = percentage * 2 * Math.PI;
+        return {
+          x: x + radius * Math.cos(angle),
+          y: y - radius * Math.sin(angle)
+        };
+      }
+    }, {
+      key: 'select',
+      value: function select() {
+        this.selected = true;
+      }
+    }, {
+      key: 'unselect',
+      value: function unselect() {
+        this.selected = false;
+      }
+    }], [{
+      key: 'parseOptions',
+      value: function parseOptions(parentOptions, newOptions) {
+        var allowDeletion = arguments[2] === undefined ? false : arguments[2];
 
-        if (doShow === true) {
-          var height = this.frame.clientHeight;
-          var width = this.frame.clientWidth;
-          var maxHeight = this.frame.parentNode.clientHeight;
-          var maxWidth = this.frame.parentNode.clientWidth;
+        var fields = ['id', 'from', 'hidden', 'hoverWidth', 'label', 'length', 'line', 'opacity', 'physics', 'selectionWidth', 'selfReferenceSize', 'to', 'title', 'value', 'width'];
 
-          var top = this.y - height;
-          if (top + height + this.padding > maxHeight) {
-            top = maxHeight - height - this.padding;
+        // only deep extend the items in the field array. These do not have shorthand.
+        util.selectiveDeepExtend(fields, parentOptions, newOptions, allowDeletion);
+
+        util.mergeOptions(parentOptions, newOptions, 'smooth');
+        util.mergeOptions(parentOptions, newOptions, 'shadow');
+
+        if (newOptions.dashes !== undefined && newOptions.dashes !== null) {
+          parentOptions.dashes = newOptions.dashes;
+        } else if (allowDeletion === true && newOptions.dashes === null) {
+          parentOptions.dashes = undefined;
+          delete parentOptions.dashes;
+        }
+
+        // set the scaling newOptions
+        if (newOptions.scaling !== undefined && newOptions.scaling !== null) {
+          if (newOptions.scaling.min !== undefined) {
+            parentOptions.scaling.min = newOptions.scaling.min;
           }
-          if (top < this.padding) {
-            top = this.padding;
+          if (newOptions.scaling.max !== undefined) {
+            parentOptions.scaling.max = newOptions.scaling.max;
           }
+          util.mergeOptions(parentOptions.scaling, newOptions.scaling, 'label');
+        } else if (allowDeletion === true && newOptions.scaling === null) {
+          parentOptions.scaling = undefined;
+          delete parentOptions.scaling;
+        }
 
-          var left = this.x;
-          if (left + width + this.padding > maxWidth) {
-            left = maxWidth - width - this.padding;
-          }
-          if (left < this.padding) {
-            left = this.padding;
+        // hanlde multiple input cases for arrows
+        if (newOptions.arrows !== undefined && newOptions.arrows !== null) {
+          if (typeof newOptions.arrows === 'string') {
+            var arrows = newOptions.arrows.toLowerCase();
+            if (arrows.indexOf('to') != -1) {
+              parentOptions.arrows.to.enabled = true;
+            }
+            if (arrows.indexOf('middle') != -1) {
+              parentOptions.arrows.middle.enabled = true;
+            }
+            if (arrows.indexOf('from') != -1) {
+              parentOptions.arrows.from.enabled = true;
+            }
+          } else if (typeof newOptions.arrows === 'object') {
+            util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'to');
+            util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'middle');
+            util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'from');
+          } else {
+            throw new Error('The arrow newOptions can only be an object or a string. Refer to the documentation. You used:' + JSON.stringify(newOptions.arrows));
           }
+        } else if (allowDeletion === true && newOptions.arrows === null) {
+          parentOptions.arrows = undefined;
+          delete parentOptions.arrows;
+        }
 
-          this.frame.style.left = left + 'px';
-          this.frame.style.top = top + 'px';
-          this.frame.style.visibility = 'visible';
-          this.hidden = false;
-        } else {
-          this.hide();
+        // hanlde multiple input cases for color
+        if (newOptions.color !== undefined && newOptions.color !== null) {
+          if (util.isString(newOptions.color)) {
+            parentOptions.color.color = newOptions.color;
+            parentOptions.color.highlight = newOptions.color;
+            parentOptions.color.hover = newOptions.color;
+            parentOptions.color.inherit = false;
+          } else {
+            var colorsDefined = false;
+            if (newOptions.color.color !== undefined) {
+              parentOptions.color.color = newOptions.color.color;colorsDefined = true;
+            }
+            if (newOptions.color.highlight !== undefined) {
+              parentOptions.color.highlight = newOptions.color.highlight;colorsDefined = true;
+            }
+            if (newOptions.color.hover !== undefined) {
+              parentOptions.color.hover = newOptions.color.hover;colorsDefined = true;
+            }
+            if (newOptions.color.inherit !== undefined) {
+              parentOptions.color.inherit = newOptions.color.inherit;
+            }
+            if (newOptions.color.opacity !== undefined) {
+              parentOptions.color.opacity = Math.min(1, Math.max(0, newOptions.color.opacity));
+            }
+
+            if (newOptions.color.inherit === undefined && colorsDefined === true) {
+              parentOptions.color.inherit = false;
+            }
+          }
+        } else if (allowDeletion === true && newOptions.color === null) {
+          parentOptions.color = undefined;
+          delete parentOptions.color;
         }
-      }
-    }, {
-      key: 'hide',
 
-      /**
-       * Hide the popup window
-       */
-      value: function hide() {
-        this.hidden = true;
-        this.frame.style.visibility = 'hidden';
+        // handle the font settings
+        if (newOptions.font !== undefined) {
+          _sharedLabel2['default'].parseOptions(parentOptions.font, newOptions);
+        }
       }
     }]);
 
-    return Popup;
+    return Edge;
   })();
 
-  exports['default'] = Popup;
+  exports['default'] = Edge;
   module.exports = exports['default'];
 
 /***/ },
@@ -37804,7 +37833,6 @@ return /******/ (function(modules) { // webpackBootstrap
       var preventDefault = options && options.preventDefault || false;
 
       var container = options && options.container || window;
-
       var _exportFunctions = {};
       var _bound = {keydown:{}, keyup:{}};
       var _keys = {};
@@ -38006,7 +38034,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilNodeBase = __webpack_require__(109);
 
   var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
@@ -38111,7 +38139,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilCircleImageBase = __webpack_require__(109);
+  var _utilCircleImageBase = __webpack_require__(110);
 
   var _utilCircleImageBase2 = _interopRequireDefault(_utilCircleImageBase);
 
@@ -38201,89 +38229,89 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilCircleImageBase = __webpack_require__(109);
+  var _utilNodeBase = __webpack_require__(109);
 
-  var _utilCircleImageBase2 = _interopRequireDefault(_utilCircleImageBase);
+  var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
-  var CircularImage = (function (_CircleImageBase) {
-    function CircularImage(options, body, labelModule, imageObj) {
-      _classCallCheck(this, CircularImage);
+  var Database = (function (_NodeBase) {
+    function Database(options, body, labelModule) {
+      _classCallCheck(this, Database);
 
-      _get(Object.getPrototypeOf(CircularImage.prototype), 'constructor', this).call(this, options, body, labelModule);
-      this.imageObj = imageObj;
-      this._swapToImageResizeWhenImageLoaded = true;
+      _get(Object.getPrototypeOf(Database.prototype), 'constructor', this).call(this, options, body, labelModule);
     }
 
-    _inherits(CircularImage, _CircleImageBase);
+    _inherits(Database, _NodeBase);
 
-    _createClass(CircularImage, [{
+    _createClass(Database, [{
       key: 'resize',
-      value: function resize() {
-        if (this.imageObj.src === undefined || this.imageObj.width === undefined || this.imageObj.height === undefined) {
-          if (!this.width) {
-            var diameter = this.options.size * 2;
-            this.width = diameter;
-            this.height = diameter;
-            this._swapToImageResizeWhenImageLoaded = true;
-            this.radius = 0.5 * this.width;
-          }
-        } else {
-          if (this._swapToImageResizeWhenImageLoaded) {
-            this.width = undefined;
-            this.height = undefined;
-            this._swapToImageResizeWhenImageLoaded = false;
-          }
-          this._resizeImage();
+      value: function resize(ctx, selected) {
+        if (this.width === undefined) {
+          var margin = 5;
+          var textSize = this.labelModule.getTextSize(ctx, selected);
+          var size = textSize.width + 2 * margin;
+          this.width = size;
+          this.height = size;
+          this.radius = 0.5 * this.width;
         }
       }
     }, {
       key: 'draw',
       value: function draw(ctx, x, y, selected, hover) {
-        this.resize();
-
+        this.resize(ctx, selected);
         this.left = x - this.width / 2;
         this.top = y - this.height / 2;
 
-        var size = Math.min(0.5 * this.height, 0.5 * this.width);
+        var borderWidth = this.options.borderWidth;
+        var selectionLineWidth = this.options.borderWidthSelected || 2 * this.options.borderWidth;
 
-        this._drawRawCircle(ctx, x, y, selected, hover, size);
+        ctx.strokeStyle = selected ? this.options.color.highlight.border : hover ? this.options.color.hover.border : this.options.color.border;
+        ctx.lineWidth = this.selected ? selectionLineWidth : borderWidth;
+        ctx.lineWidth *= this.networkScaleInv;
+        ctx.lineWidth = Math.min(this.width, ctx.lineWidth);
 
-        ctx.save();
-        ctx.circle(x, y, size);
-        ctx.stroke();
-        ctx.clip();
+        ctx.fillStyle = selected ? this.options.color.highlight.background : hover ? this.options.color.hover.background : this.options.color.background;
+        ctx.database(x - this.width / 2, y - this.height * 0.5, this.width, this.height);
 
-        this._drawImageAtPosition(ctx);
+        // draw shadow if enabled
+        this.enableShadow(ctx);
+        ctx.fill();
 
-        ctx.restore();
+        // disable shadows for other elements.
+        this.disableShadow(ctx);
 
-        this._drawImageLabel(ctx, x, y, selected);
+        ctx.stroke();
 
         this.updateBoundingBox(x, y);
+
+        this.labelModule.draw(ctx, x, y, selected);
       }
     }, {
       key: 'updateBoundingBox',
       value: function updateBoundingBox(x, y) {
-        this.boundingBox.top = y - this.options.size;
-        this.boundingBox.left = x - this.options.size;
-        this.boundingBox.right = x + this.options.size;
-        this.boundingBox.bottom = y + this.options.size;
-        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
-        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
-        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
+        this.left = x - this.width * 0.5;
+        this.top = y - this.height * 0.5;
+
+        this.boundingBox.left = this.left;
+        this.boundingBox.top = this.top;
+        this.boundingBox.bottom = this.top + this.height;
+        this.boundingBox.right = this.left + this.width;
       }
     }, {
       key: 'distanceToBorder',
       value: function distanceToBorder(ctx, angle) {
         this.resize(ctx);
-        return this._distanceToBorder(angle);
+        var a = this.width / 2;
+        var b = this.height / 2;
+        var w = Math.sin(angle) * a;
+        var h = Math.cos(angle) * b;
+        return a * b / Math.sqrt(w * w + h * h);
       }
     }]);
 
-    return CircularImage;
-  })(_utilCircleImageBase2['default']);
+    return Database;
+  })(_utilNodeBase2['default']);
 
-  exports['default'] = CircularImage;
+  exports['default'] = Database;
   module.exports = exports['default'];
 
 /***/ },
@@ -38306,89 +38334,89 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilCircleImageBase = __webpack_require__(110);
 
-  var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
+  var _utilCircleImageBase2 = _interopRequireDefault(_utilCircleImageBase);
 
-  var Database = (function (_NodeBase) {
-    function Database(options, body, labelModule) {
-      _classCallCheck(this, Database);
+  var CircularImage = (function (_CircleImageBase) {
+    function CircularImage(options, body, labelModule, imageObj) {
+      _classCallCheck(this, CircularImage);
 
-      _get(Object.getPrototypeOf(Database.prototype), 'constructor', this).call(this, options, body, labelModule);
+      _get(Object.getPrototypeOf(CircularImage.prototype), 'constructor', this).call(this, options, body, labelModule);
+      this.imageObj = imageObj;
+      this._swapToImageResizeWhenImageLoaded = true;
     }
 
-    _inherits(Database, _NodeBase);
+    _inherits(CircularImage, _CircleImageBase);
 
-    _createClass(Database, [{
+    _createClass(CircularImage, [{
       key: 'resize',
-      value: function resize(ctx, selected) {
-        if (this.width === undefined) {
-          var margin = 5;
-          var textSize = this.labelModule.getTextSize(ctx, selected);
-          var size = textSize.width + 2 * margin;
-          this.width = size;
-          this.height = size;
-          this.radius = 0.5 * this.width;
+      value: function resize() {
+        if (this.imageObj.src === undefined || this.imageObj.width === undefined || this.imageObj.height === undefined) {
+          if (!this.width) {
+            var diameter = this.options.size * 2;
+            this.width = diameter;
+            this.height = diameter;
+            this._swapToImageResizeWhenImageLoaded = true;
+            this.radius = 0.5 * this.width;
+          }
+        } else {
+          if (this._swapToImageResizeWhenImageLoaded) {
+            this.width = undefined;
+            this.height = undefined;
+            this._swapToImageResizeWhenImageLoaded = false;
+          }
+          this._resizeImage();
         }
       }
     }, {
       key: 'draw',
       value: function draw(ctx, x, y, selected, hover) {
-        this.resize(ctx, selected);
+        this.resize();
+
         this.left = x - this.width / 2;
         this.top = y - this.height / 2;
 
-        var borderWidth = this.options.borderWidth;
-        var selectionLineWidth = this.options.borderWidthSelected || 2 * this.options.borderWidth;
+        var size = Math.min(0.5 * this.height, 0.5 * this.width);
 
-        ctx.strokeStyle = selected ? this.options.color.highlight.border : hover ? this.options.color.hover.border : this.options.color.border;
-        ctx.lineWidth = this.selected ? selectionLineWidth : borderWidth;
-        ctx.lineWidth *= this.networkScaleInv;
-        ctx.lineWidth = Math.min(this.width, ctx.lineWidth);
+        this._drawRawCircle(ctx, x, y, selected, hover, size);
 
-        ctx.fillStyle = selected ? this.options.color.highlight.background : hover ? this.options.color.hover.background : this.options.color.background;
-        ctx.database(x - this.width / 2, y - this.height * 0.5, this.width, this.height);
+        ctx.save();
+        ctx.circle(x, y, size);
+        ctx.stroke();
+        ctx.clip();
 
-        // draw shadow if enabled
-        this.enableShadow(ctx);
-        ctx.fill();
+        this._drawImageAtPosition(ctx);
 
-        // disable shadows for other elements.
-        this.disableShadow(ctx);
+        ctx.restore();
 
-        ctx.stroke();
+        this._drawImageLabel(ctx, x, y, selected);
 
         this.updateBoundingBox(x, y);
-
-        this.labelModule.draw(ctx, x, y, selected);
       }
     }, {
       key: 'updateBoundingBox',
       value: function updateBoundingBox(x, y) {
-        this.left = x - this.width * 0.5;
-        this.top = y - this.height * 0.5;
-
-        this.boundingBox.left = this.left;
-        this.boundingBox.top = this.top;
-        this.boundingBox.bottom = this.top + this.height;
-        this.boundingBox.right = this.left + this.width;
+        this.boundingBox.top = y - this.options.size;
+        this.boundingBox.left = x - this.options.size;
+        this.boundingBox.right = x + this.options.size;
+        this.boundingBox.bottom = y + this.options.size;
+        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
+        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
+        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
       }
     }, {
       key: 'distanceToBorder',
       value: function distanceToBorder(ctx, angle) {
         this.resize(ctx);
-        var a = this.width / 2;
-        var b = this.height / 2;
-        var w = Math.sin(angle) * a;
-        var h = Math.cos(angle) * b;
-        return a * b / Math.sqrt(w * w + h * h);
+        return this._distanceToBorder(angle);
       }
     }]);
 
-    return Database;
-  })(_utilNodeBase2['default']);
+    return CircularImage;
+  })(_utilCircleImageBase2['default']);
 
-  exports['default'] = Database;
+  exports['default'] = CircularImage;
   module.exports = exports['default'];
 
 /***/ },
@@ -38523,7 +38551,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilNodeBase = __webpack_require__(109);
 
   var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
@@ -38630,7 +38658,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilNodeBase = __webpack_require__(109);
 
   var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
@@ -38746,7 +38774,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilCircleImageBase = __webpack_require__(109);
+  var _utilCircleImageBase = __webpack_require__(110);
 
   var _utilCircleImageBase2 = _interopRequireDefault(_utilCircleImageBase);
 
@@ -38946,7 +38974,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilNodeBase = __webpack_require__(109);
 
   var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
@@ -39161,16 +39189,24 @@ return /******/ (function(modules) { // webpackBootstrap
       key: 'setOptions',
       value: function setOptions(options) {
         this.options = options;
-        this.from = this.body.nodes[this.options.from];
-        this.to = this.body.nodes[this.options.to];
         this.id = this.options.id;
         this.setupSupportNode();
-
-        // fix weird behaviour
-        if (this.from.id === this.to.id) {
+        this.connect();
+      }
+    }, {
+      key: 'connect',
+      value: function connect() {
+        this.from = this.body.nodes[this.options.from];
+        this.to = this.body.nodes[this.options.to];
+        if (this.from === undefined || this.to === undefined) {
           this.via.setOptions({ physics: false });
         } else {
-          this.via.setOptions({ physics: true });
+          // fix weird behaviour where a selfreferencing node has physics enabled
+          if (this.from.id === this.to.id) {
+            this.via.setOptions({ physics: false });
+          } else {
+            this.via.setOptions({ physics: true });
+          }
         }
       }
     }, {
@@ -39313,11 +39349,6 @@ return /******/ (function(modules) { // webpackBootstrap
     _inherits(BezierEdgeStatic, _BezierEdgeBase);
 
     _createClass(BezierEdgeStatic, [{
-      key: 'cleanup',
-      value: function cleanup() {
-        return false;
-      }
-    }, {
       key: '_line',
 
       /**
@@ -39577,11 +39608,6 @@ return /******/ (function(modules) { // webpackBootstrap
     _inherits(StraightEdge, _EdgeBase);
 
     _createClass(StraightEdge, [{
-      key: 'cleanup',
-      value: function cleanup() {
-        return false;
-      }
-    }, {
       key: '_line',
 
       /**
@@ -39689,6 +39715,74 @@ return /******/ (function(modules) { // webpackBootstrap
 
   var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
 
+  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
+
+  var NodeBase = (function () {
+    function NodeBase(options, body, labelModule) {
+      _classCallCheck(this, NodeBase);
+
+      this.body = body;
+      this.labelModule = labelModule;
+      this.setOptions(options);
+      this.top = undefined;
+      this.left = undefined;
+      this.height = undefined;
+      this.width = undefined;
+      this.radius = undefined;
+      this.boundingBox = { top: 0, left: 0, right: 0, bottom: 0 };
+    }
+
+    _createClass(NodeBase, [{
+      key: 'setOptions',
+      value: function setOptions(options) {
+        this.options = options;
+      }
+    }, {
+      key: '_distanceToBorder',
+      value: function _distanceToBorder(angle) {
+        var borderWidth = 1;
+        return Math.min(Math.abs(this.width / 2 / Math.cos(angle)), Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
+      }
+    }, {
+      key: 'enableShadow',
+      value: function enableShadow(ctx) {
+        if (this.options.shadow.enabled === true) {
+          ctx.shadowColor = 'rgba(0,0,0,0.5)';
+          ctx.shadowBlur = this.options.shadow.size;
+          ctx.shadowOffsetX = this.options.shadow.x;
+          ctx.shadowOffsetY = this.options.shadow.y;
+        }
+      }
+    }, {
+      key: 'disableShadow',
+      value: function disableShadow(ctx) {
+        if (this.options.shadow.enabled === true) {
+          ctx.shadowColor = 'rgba(0,0,0,0)';
+          ctx.shadowBlur = 0;
+          ctx.shadowOffsetX = 0;
+          ctx.shadowOffsetY = 0;
+        }
+      }
+    }]);
+
+    return NodeBase;
+  })();
+
+  exports['default'] = NodeBase;
+  module.exports = exports['default'];
+
+/***/ },
+/* 110 */
+/***/ function(module, exports, __webpack_require__) {
+
+  'use strict';
+
+  Object.defineProperty(exports, '__esModule', {
+    value: true
+  });
+
+  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
+
   var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };
 
   function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
@@ -39697,7 +39791,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilNodeBase = __webpack_require__(109);
 
   var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
@@ -39707,17 +39801,33 @@ return /******/ (function(modules) { // webpackBootstrap
 
       _get(Object.getPrototypeOf(CircleImageBase.prototype), 'constructor', this).call(this, options, body, labelModule);
       this.labelOffset = 0;
+      this.imageLoaded = false;
     }
 
     _inherits(CircleImageBase, _NodeBase);
 
     _createClass(CircleImageBase, [{
       key: '_resizeImage',
+
+      /**
+       * This function resizes the image by the options size when the image has not yet loaded. If the image has loaded, we
+       * force the update of the size again.
+       *
+       * @private
+       */
       value: function _resizeImage() {
-        if (!this.width || !this.height) {
+        var force = false;
+        if (!this.imageObj.width || !this.imageObj.height) {
           // undefined or 0
-          var width, height, ratio;
+          this.imageLoaded = false;
+        } else if (this.imageLoaded === false) {
+          this.imageLoaded = true;
+          force = true;
+        }
 
+        if (!this.width || !this.height || force === true) {
+          // undefined or 0
+          var width, height, ratio;
           if (this.imageObj.width && this.imageObj.height) {
             // not undefined or 0
             width = 0;
@@ -39769,6 +39879,7 @@ return /******/ (function(modules) { // webpackBootstrap
     }, {
       key: '_drawImageAtPosition',
       value: function _drawImageAtPosition(ctx) {
+        console.log(this.options.label, this.imageObj.width);
         if (this.imageObj.width != 0) {
           // draw the image
           ctx.globalAlpha = 1;
@@ -39810,74 +39921,6 @@ return /******/ (function(modules) { // webpackBootstrap
   exports['default'] = CircleImageBase;
   module.exports = exports['default'];
 
-/***/ },
-/* 110 */
-/***/ function(module, exports, __webpack_require__) {
-
-  'use strict';
-
-  Object.defineProperty(exports, '__esModule', {
-    value: true
-  });
-
-  var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-  var NodeBase = (function () {
-    function NodeBase(options, body, labelModule) {
-      _classCallCheck(this, NodeBase);
-
-      this.body = body;
-      this.labelModule = labelModule;
-      this.setOptions(options);
-      this.top = undefined;
-      this.left = undefined;
-      this.height = undefined;
-      this.width = undefined;
-      this.radius = undefined;
-      this.boundingBox = { top: 0, left: 0, right: 0, bottom: 0 };
-    }
-
-    _createClass(NodeBase, [{
-      key: 'setOptions',
-      value: function setOptions(options) {
-        this.options = options;
-      }
-    }, {
-      key: '_distanceToBorder',
-      value: function _distanceToBorder(angle) {
-        var borderWidth = 1;
-        return Math.min(Math.abs(this.width / 2 / Math.cos(angle)), Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
-      }
-    }, {
-      key: 'enableShadow',
-      value: function enableShadow(ctx) {
-        if (this.options.shadow.enabled === true) {
-          ctx.shadowColor = 'rgba(0,0,0,0.5)';
-          ctx.shadowBlur = this.options.shadow.size;
-          ctx.shadowOffsetX = this.options.shadow.x;
-          ctx.shadowOffsetY = this.options.shadow.y;
-        }
-      }
-    }, {
-      key: 'disableShadow',
-      value: function disableShadow(ctx) {
-        if (this.options.shadow.enabled === true) {
-          ctx.shadowColor = 'rgba(0,0,0,0)';
-          ctx.shadowBlur = 0;
-          ctx.shadowOffsetX = 0;
-          ctx.shadowOffsetY = 0;
-        }
-      }
-    }]);
-
-    return NodeBase;
-  })();
-
-  exports['default'] = NodeBase;
-  module.exports = exports['default'];
-
 /***/ },
 /* 111 */
 /***/ function(module, exports, __webpack_require__) {
@@ -39898,7 +39941,7 @@ return /******/ (function(modules) { // webpackBootstrap
 
   function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) subClass.__proto__ = superClass; }
 
-  var _utilNodeBase = __webpack_require__(110);
+  var _utilNodeBase = __webpack_require__(109);
 
   var _utilNodeBase2 = _interopRequireDefault(_utilNodeBase);
 
@@ -40156,6 +40199,14 @@ return /******/ (function(modules) { // webpackBootstrap
     }
 
     _createClass(EdgeBase, [{
+      key: 'connect',
+      value: function connect() {}
+    }, {
+      key: 'cleanup',
+      value: function cleanup() {
+        return false;
+      }
+    }, {
       key: 'setOptions',
       value: function setOptions(options) {
         this.options = options;
@@ -40183,7 +40234,7 @@ return /******/ (function(modules) { // webpackBootstrap
        */
       value: function drawLine(ctx, selected, hover) {
         // set style
-        ctx.strokeStyle = this.getColor(ctx);
+        ctx.strokeStyle = this.getColor(ctx, selected, hover);
         ctx.lineWidth = this.getLineWidth(selected, hover);
         var via = undefined;
         if (this.options.dashes !== false) {
@@ -40433,7 +40484,7 @@ return /******/ (function(modules) { // webpackBootstrap
       }
     }, {
       key: 'getColor',
-      value: function getColor(ctx) {
+      value: function getColor(ctx, selected, hover) {
         var colorOptions = this.options.color;
         if (colorOptions.inherit !== false) {
           // when this is a loop edge, just use the 'from' method
@@ -40480,9 +40531,9 @@ return /******/ (function(modules) { // webpackBootstrap
         // if color inherit is on and gradients are used, the function has already returned by now.
         this.colorDirty = false;
 
-        if (this.selected === true) {
+        if (selected === true) {
           return this.color.highlight;
-        } else if (this.hover === true) {
+        } else if (hover === true) {
           return this.color.hover;
         } else {
           return this.color.color;
@@ -40589,7 +40640,7 @@ return /******/ (function(modules) { // webpackBootstrap
        */
       value: function drawArrowHead(ctx, position, viaNode, selected, hover) {
         // set style
-        ctx.strokeStyle = this.getColor(ctx);
+        ctx.strokeStyle = this.getColor(ctx, selected, hover);
         ctx.fillStyle = ctx.strokeStyle;
         ctx.lineWidth = this.getLineWidth(selected, hover);
 
diff --git a/dist/vis.min.css b/dist/vis.min.css
index 683d13c3..e5caf997 100644
--- a/dist/vis.min.css
+++ b/dist/vis.min.css
@@ -1 +1 @@
-.vis-panel,.vis-timeline{margin:0;padding:0;box-sizing:border-box}.vis-background,.vis-labelset,.vis-timeline{overflow:hidden}.vis .overlay{position:absolute;top:0;left:0;width:100%;height:100%;z-index:10}.vis-active{box-shadow:0 0 10px #86d5f8}.vis [class*=span]{min-height:0;width:auto}.vis-timeline{position:relative;border:1px solid #bfbfbf}.vis-panel{position:absolute}.vis-panel.vis-bottom,.vis-panel.vis-center,.vis-panel.vis-left,.vis-panel.vis-right,.vis-panel.vis-top{border:1px #bfbfbf}.vis-panel.vis-center,.vis-panel.vis-left,.vis-panel.vis-right{border-top-style:solid;border-bottom-style:solid;overflow:hidden}.vis-panel.vis-bottom,.vis-panel.vis-center,.vis-panel.vis-top{border-left-style:solid;border-right-style:solid}.vis-panel>.vis-content{position:relative}.vis-panel .vis-shadow{position:absolute;width:100%;height:1px;box-shadow:0 0 10px rgba(0,0,0,.8)}.vis-itemset,.vis-labelset,.vis-labelset .vis-label{box-sizing:border-box;position:relative}.vis-panel .vis-shadow.vis-top{top:-1px;left:0}.vis-panel .vis-shadow.vis-bottom{bottom:-1px;left:0}.vis-labelset .vis-label{left:0;top:0;width:100%;color:#4d4d4d;border-bottom:1px solid #bfbfbf}.vis-labelset .vis-label:last-child{border-bottom:none}.vis-labelset .vis-label .vis-inner{display:inline-block;padding:5px}.vis-labelset .vis-label .vis-inner.vis-hidden{padding:0}.vis-itemset{padding:0;margin:0}.vis-itemset .vis-background,.vis-itemset .vis-foreground{position:absolute;width:100%;height:100%;overflow:visible}.vis-axis{position:absolute;width:100%;height:0;left:0;z-index:1}.vis-foreground .vis-group{position:relative;box-sizing:border-box;border-bottom:1px solid #bfbfbf}.vis-foreground .vis-group:last-child{border-bottom:none}.vis-overlay{position:absolute;top:0;left:0;width:100%;height:100%;z-index:10}.vis-item{position:absolute;color:#1A1A1A;border-color:#97B0F8;border-width:1px;background-color:#D5DDF6;display:inline-block}.vis-item.vis-point.vis-selected,.vis-item.vis-selected{background-color:#FFF785}.vis-item.vis-selected{border-color:#FFC200;z-index:2}.vis-editable .vis-item.vis-selected{cursor:move}.vis-item.vis-box{text-align:center;border-style:solid;border-radius:2px}.vis-item.vis-point{background:0 0}.vis-item.vis-dot{position:absolute;padding:0;border-width:4px;border-style:solid;border-radius:4px}.vis-item.vis-range{border-style:solid;border-radius:2px;box-sizing:border-box}.vis-item.vis-background{border:none;background-color:rgba(213,221,246,.4);box-sizing:border-box;padding:0;margin:0}.vis-item .vis-item-overflow{position:relative;width:100%;height:100%;padding:0;margin:0;overflow:hidden}.vis-item.vis-range .vis-item-content{position:relative;display:inline-block}.vis-item.vis-background .vis-item-content{position:absolute;display:inline-block}.vis-item.vis-line{padding:0;position:absolute;width:0;border-left-width:1px;border-left-style:solid}.vis-item .vis-item-content{white-space:nowrap;box-sizing:border-box;padding:5px}.vis-item .vis-delete{background:url(img/timeline/delete.png)center no-repeat;position:absolute;width:24px;height:24px;top:-4px;right:-24px;cursor:pointer}.vis-item.vis-range .vis-drag-left{position:absolute;width:24px;max-width:20%;min-width:2px;height:100%;top:0;left:-4px;cursor:w-resize}.vis-item.vis-range .vis-drag-right{position:absolute;width:24px;max-width:20%;min-width:2px;height:100%;top:0;right:-4px;cursor:e-resize}.vis-time-axis{position:relative;overflow:hidden}.vis-time-axis.vis-foreground{top:0;left:0;width:100%}.vis-time-axis.vis-background{position:absolute;top:0;left:0;width:100%;height:100%}.vis-time-axis .vis-text{position:absolute;color:#4d4d4d;padding:3px;white-space:nowrap}.vis-time-axis .vis-text.vis-measure{position:absolute;padding-left:0;padding-right:0;margin-left:0;margin-right:0;visibility:hidden}.vis-time-axis .vis-grid.vis-vertical{position:absolute;border-left:1px solid}.vis-time-axis .vis-grid.vis-minor{border-color:#e5e5e5}.vis-time-axis .vis-grid.vis-major{border-color:#bfbfbf}.vis-current-time{background-color:#FF7F6E;width:2px;z-index:1}.vis-custom-time{background-color:#6E94FF;width:2px;cursor:move;z-index:1}.vis-panel.vis-background.vis-horizontal .vis-grid.vis-horizontal{position:absolute;width:100%;height:0;border-bottom:1px solid}.vis-panel.vis-background.vis-horizontal .vis-grid.vis-minor{border-color:#e5e5e5}.vis-panel.vis-background.vis-horizontal .vis-grid.vis-major{border-color:#bfbfbf}.vis-data-axis .vis-y-axis.vis-major{width:100%;position:absolute;color:#4d4d4d;white-space:nowrap}.vis-data-axis .vis-y-axis.vis-major.vis-measure{padding:0;margin:0;border:0;visibility:hidden;width:auto}.vis-data-axis .vis-y-axis.vis-minor{position:absolute;width:100%;color:#bebebe;white-space:nowrap}.vis-data-axis .vis-y-axis.vis-minor.vis-measure{padding:0;margin:0;border:0;visibility:hidden;width:auto}.vis-data-axis .vis-y-axis.vis-title{position:absolute;color:#4d4d4d;white-space:nowrap;bottom:20px;text-align:center}.vis-data-axis .vis-y-axis.vis-title.vis-measure{padding:0;margin:0;visibility:hidden;width:auto}.vis-data-axis .vis-y-axis.vis-title.vis-left{bottom:0;-webkit-transform-origin:left top;-moz-transform-origin:left top;-ms-transform-origin:left top;-o-transform-origin:left top;transform-origin:left bottom;-webkit-transform:rotate(-90deg);-moz-transform:rotate(-90deg);-ms-transform:rotate(-90deg);-o-transform:rotate(-90deg);transform:rotate(-90deg)}.vis-data-axis .vis-y-axis.vis-title.vis-right{bottom:0;-webkit-transform-origin:right bottom;-moz-transform-origin:right 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\ No newline at end of file
diff --git a/docs/network/index.html b/docs/network/index.html
index 73c4c26e..7f940972 100644
--- a/docs/network/index.html
+++ b/docs/network/index.html
@@ -622,6 +622,15 @@ var locales = {
                 <td class="midMethods">Returns: Boolean</td>
                 <td>Returns true if the node whose ID has been supplied is a cluster.</td>
             </tr>
+            <tr class="collapsible toggle" onclick="toggleTable('methodTable','getNodesInCluster', this);">
+                <td colspan="2"><span parent="getNodesInCluster" class="right-caret"></span> getNodesInCluster(
+                    <code>String clusterNodeId</code>)
+            </tr>
+            <tr class="hidden" parent="getNodesInCluster">
+                <td class="midMethods">Returns: Array</td>
+                <td>Returns an array of all nodeIds of the nodes that would be released if you open the cluster.
+                </td>
+            </tr>
             <tr class="collapsible toggle" onclick="toggleTable('methodTable','openCluster', this);">
                 <td colspan="2"><span parent="openCluster" class="right-caret"></span> openCluster(
                     <code>String nodeId</code>)
@@ -681,12 +690,12 @@ var locales = {
                     <code>enabled</code> to false.
                 </td>
             </tr>
-            <tr class="collapsible toggle" onclick="toggleTable('methodTable','editNodeMode', this);">
-                <td colspan="2"><span parent="editNodeMode" class="right-caret"></span> editNodeMode()</td>
+            <tr class="collapsible toggle" onclick="toggleTable('methodTable','editNode', this);">
+                <td colspan="2"><span parent="editNode" class="right-caret"></span> editNode()</td>
             </tr>
-            <tr class="hidden" parent="editNodeMode">
+            <tr class="hidden" parent="editNode">
                 <td class="midMethods">Returns: none</td>
-                <td>Go into editNode mode. The explaination from <code>addNodeMode</code> applies here as well.</td>
+                <td>Edit the selected node. The explaination from <code>addNodeMode</code> applies here as well.</td>
             </tr>
             <tr class="collapsible toggle" onclick="toggleTable('methodTable','addEdgeMode', this);">
                 <td colspan="2"><span parent="addEdgeMode" class="right-caret"></span> addEdgeMode()</td>
diff --git a/docs/network/interaction.html b/docs/network/interaction.html
index 54a306c4..bbd4f1ba 100644
--- a/docs/network/interaction.html
+++ b/docs/network/interaction.html
@@ -91,6 +91,7 @@ var options = {
       speed: {x: 10, y: 10, zoom: 0.02},
       bindToWindow: true
     },
+    multiselect: false,
     navigationButtons: false,
     selectable: true,
     selectConnectedEdges: true,
@@ -127,6 +128,7 @@ network.setOptions(options);
         <tr parent="keyboard" class="hidden"><td class="indent">keyboard.speed.y</td>       <td>Number</td>             <td><code>1</code></td>         <td>The speed at which the view moves in the y direction on pressing a key or pressing a navigation button.</td></tr>
         <tr parent="keyboard" class="hidden"><td class="indent">keyboard.speed.zoom</td>    <td>Number</td>             <td><code>0.02</code></td>      <td>The speed at which the view zooms in or out pressing a key or pressing a navigation button.</td></tr>
         <tr parent="keyboard" class="hidden"><td class="indent">keyboard.bindToWindow</td>  <td>Boolean</td>            <td><code>true</code></td>      <td>When binding the keyboard shortcuts to the window, they will work regardless of which DOM object has the focus. If you have multiple networks on your page, you could set this to false, making sure the keyboard shortcuts only work on the network that has the focus.</td></tr>
+        <tr><td>multiselect</td>            <td>Boolean</td>            <td><code>false</code></td>     <td>When true, a longheld click (or touch) as well as a control-click will add to the selection.</td></tr>
         <tr><td>navigationButtons</td>      <td>Boolean</td>            <td><code>false</code></td>     <td>When true, navigation buttons are drawn on the network canvas. These are HTML buttons and can be completely customized using CSS.</td></tr>
         <tr><td>selectable</td>             <td>Boolean</td><td><code>true</code></td><td>When true, the nodes and edges can be selected by the user.</td></tr>
         <tr><td>selectConnectedEdges</td>   <td>Boolean</td><td><code>true</code></td><td>When true, on selecting a node, its connecting edges are highlighted.</td></tr>
diff --git a/lib/network/Network.js b/lib/network/Network.js
index c8362aee..662226cf 100644
--- a/lib/network/Network.js
+++ b/lib/network/Network.js
@@ -204,8 +204,8 @@ Network.prototype.setOptions = function (options) {
     if (options.clickToUse !== undefined) {
       if (options.clickToUse === true) {
         if (this.activator === undefined) {
-          this.activator = new Activator(this.frame);
-          this.activator.on('change', this._createKeyBinds.bind(this));
+          this.activator = new Activator(this.canvas.frame);
+          this.activator.on('change', () => {this.body.emitter.emit("activate")});
         }
       }
       else {
@@ -435,6 +435,7 @@ Network.prototype.findNode            = function() {return this.clustering.findN
 Network.prototype.isCluster           = function() {return this.clustering.isCluster.apply(this.clustering,arguments);};
 Network.prototype.openCluster         = function() {return this.clustering.openCluster.apply(this.clustering,arguments);};
 Network.prototype.cluster             = function() {return this.clustering.cluster.apply(this.clustering,arguments);};
+Network.prototype.getNodesInCluster   = function() {return this.clustering.getNodesInCluster.apply(this.clustering,arguments);};
 Network.prototype.clusterByConnection = function() {return this.clustering.clusterByConnection.apply(this.clustering,arguments);};
 Network.prototype.clusterByHubsize    = function() {return this.clustering.clusterByHubsize.apply(this.clustering,arguments);};
 Network.prototype.clusterOutliers     = function() {return this.clustering.clusterOutliers.apply(this.clustering,arguments);};
@@ -442,7 +443,8 @@ Network.prototype.getSeed             = function() {return this.layoutEngine.get
 Network.prototype.enableEditMode      = function() {return this.manipulation.enableEditMode.apply(this.manipulation,arguments);};
 Network.prototype.disableEditMode     = function() {return this.manipulation.disableEditMode.apply(this.manipulation,arguments);};
 Network.prototype.addNodeMode         = function() {return this.manipulation.addNodeMode.apply(this.manipulation,arguments);};
-Network.prototype.editNodeMode        = function() {return this.manipulation.editNodeMode.apply(this.manipulation,arguments);};
+Network.prototype.editNode            = function() {return this.manipulation.editNode.apply(this.manipulation,arguments);};
+Network.prototype.editNodeMode        = function() {console.log("Depricated: Please use editNode instead of editNodeMode."); return this.manipulation.editNode.apply(this.manipulation,arguments);};
 Network.prototype.addEdgeMode         = function() {return this.manipulation.addEdgeMode.apply(this.manipulation,arguments);};
 Network.prototype.editEdgeMode        = function() {return this.manipulation.editEdgeMode.apply(this.manipulation,arguments);};
 Network.prototype.deleteSelected      = function() {return this.manipulation.deleteSelected.apply(this.manipulation,arguments);};
@@ -457,7 +459,7 @@ Network.prototype.getConnectedNodes   = function(objectId) {
     return this.edgesHandler.getConnectedNodes.apply(this.edgesHandler,arguments);
   }
 };
-Network.prototype.getEdges            = function() {return this.nodesHandler.getEdges.apply(this.nodesHandler,arguments);};
+Network.prototype.getConnectedEdges   = function() {return this.nodesHandler.getConnectedEdges.apply(this.nodesHandler,arguments);};
 Network.prototype.startSimulation     = function() {return this.physics.startSimulation.apply(this.physics,arguments);};
 Network.prototype.stopSimulation      = function() {return this.physics.stopSimulation.apply(this.physics,arguments);};
 Network.prototype.stabilize           = function() {return this.physics.stabilize.apply(this.physics,arguments);};
diff --git a/lib/network/css/network-tooltip.css b/lib/network/css/network-tooltip.css
index 14907285..1c5a9a36 100644
--- a/lib/network/css/network-tooltip.css
+++ b/lib/network/css/network-tooltip.css
@@ -15,4 +15,5 @@ div.vis-network-tooltip {
   border: 1px solid #808074;
 
   box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.2);
+  pointer-events: none;
 }
\ No newline at end of file
diff --git a/lib/network/modules/Clustering.js b/lib/network/modules/Clustering.js
index e68234cc..071215b2 100644
--- a/lib/network/modules/Clustering.js
+++ b/lib/network/modules/Clustering.js
@@ -498,7 +498,6 @@ class ClusterEngine {
           delete this.body.edges[edgeId];
         }
         else {
-
           // one of the nodes connected to this edge is in a cluster. We give the edge to that cluster so it will be released when that cluster is opened.
           if (this.clusteredNodes[edge.fromId] !== undefined || this.clusteredNodes[edge.toId] !== undefined) {
             let fromId, toId;
@@ -507,17 +506,17 @@ class ClusterEngine {
             let clusterNode = this.body.nodes[clusterId];
             clusterNode.containedEdges[edgeId] = edge;
 
-            // if both from and to nodes are visible, we create a new temporary edge
-            if (edge.from.options.hidden !== true && edge.to.options.hidden !== true) {
-              if (this.clusteredNodes[edge.fromId] !== undefined) {
-                fromId = clusterId;
-                toId = edge.toId;
-              }
-              else {
-                fromId = edge.fromId;
-                toId = clusterId;
-              }
+            if (this.clusteredNodes[edge.fromId] !== undefined) {
+              fromId = clusterId;
+              toId = edge.toId;
+            }
+            else {
+              fromId = edge.fromId;
+              toId = clusterId;
+            }
 
+            // if both from and to nodes are visible, we create a new temporary edge
+            if (this.body.nodes[fromId].options.hidden !== true && this.body.nodes[toId].options.hidden !== true) {
               let clonedOptions = this._cloneOptions(edge, 'edge');
               let id = 'clusterEdge:' + util.randomUUID();
               util.deepExtend(clonedOptions, clusterNode.clusterEdgeProperties);
@@ -553,30 +552,18 @@ class ClusterEngine {
     }
   }
 
-
-  /**
-  * Connect an edge that was previously contained from cluster A to cluster B if the node that it was originally connected to
-  * is currently residing in cluster B
-  * @param edge
-  * @param nodeId
-  * @param from
-  * @private
-  */
-  _connectEdge(edge, nodeId, from) {
-    let clusterStack = this.findNode(nodeId);
-    if (from === true) {
-      edge.from = clusterStack[clusterStack.length - 1];
-      edge.fromId = clusterStack[clusterStack.length - 1].id;
-      clusterStack.pop();
-      edge.fromArray = clusterStack;
-    }
-    else {
-      edge.to = clusterStack[clusterStack.length - 1];
-      edge.toId = clusterStack[clusterStack.length - 1].id;
-      clusterStack.pop();
-      edge.toArray = clusterStack;
+  getNodesInCluster(clusterId) {
+    let nodesArray = []
+    if (this.isCluster(clusterId) === true) {
+      let containedNodes = this.body.nodes[clusterId].containedNodes;
+      for (let nodeId in containedNodes) {
+        if (containedNodes.hasOwnProperty(nodeId)) {
+          nodesArray.push(nodeId)
+        }
+      }
     }
-    edge.connect();
+
+    return nodesArray;
   }
 
   /**
diff --git a/lib/network/modules/EdgesHandler.js b/lib/network/modules/EdgesHandler.js
index 0eb18e6a..25f5a05d 100644
--- a/lib/network/modules/EdgesHandler.js
+++ b/lib/network/modules/EdgesHandler.js
@@ -95,6 +95,9 @@ class EdgesHandler {
   bindEventListeners() {
     // this allows external modules to force all dynamic curves to turn static.
     this.body.emitter.on("_forceDisableDynamicCurves", (type) => {
+      if (type === 'dynamic') {
+        type = 'continuous';
+      }
       let emitChange = false;
       for (let edgeId in this.body.edges) {
         if (this.body.edges.hasOwnProperty(edgeId)) {
@@ -106,12 +109,12 @@ class EdgesHandler {
           if (edgeData !== undefined) {
             let edgeOptions = edgeData.smooth;
             if (edgeOptions !== undefined) {
-              if (edgeOptions.enabled === true && edgeOptions.dynamic === true) {
+              if (edgeOptions.enabled === true && edgeOptions.type === 'dynamic') {
                 if (type === undefined) {
                   edge.setOptions({smooth: false});
                 }
                 else {
-                  edge.setOptions({smooth: {dynamic: false, type: type}});
+                  edge.setOptions({smooth: {type: type}});
                 }
                 emitChange = true;
               }
diff --git a/lib/network/modules/InteractionHandler.js b/lib/network/modules/InteractionHandler.js
index f79ae7c5..cd146d99 100644
--- a/lib/network/modules/InteractionHandler.js
+++ b/lib/network/modules/InteractionHandler.js
@@ -163,7 +163,7 @@ class InteractionHandler {
   }
 
   onContext(event) {
-    let pointer = this.getPointer({x:event.pageX, y:event.pageY});
+    let pointer = this.getPointer({x:event.clientX, y:event.clientY});
     this.selectionHandler._generateClickEvent('oncontext', event, pointer);
   }
 
@@ -448,7 +448,7 @@ class InteractionHandler {
       scale *= (1 + zoom);
 
       // calculate the pointer location
-      let pointer = this.getPointer({x:event.pageX, y:event.pageY});
+      let pointer = this.getPointer({x:event.clientX, y:event.clientY});
 
       // apply the new scale
       this.zoom(scale, pointer);
@@ -465,7 +465,7 @@ class InteractionHandler {
    * @private
    */
   onMouseMove(event) {
-    let pointer = this.getPointer({x:event.pageX, y:event.pageY});
+    let pointer = this.getPointer({x:event.clientX, y:event.clientY});
     let popupVisible = false;
 
     // check if the previously selected node is still selected
diff --git a/lib/network/modules/LayoutEngine.js b/lib/network/modules/LayoutEngine.js
index 121215ac..65b8f691 100644
--- a/lib/network/modules/LayoutEngine.js
+++ b/lib/network/modules/LayoutEngine.js
@@ -1,3 +1,5 @@
+'use strict'
+
 var util = require('../../util');
 
 class LayoutEngine {
@@ -78,14 +80,14 @@ class LayoutEngine {
         allOptions.physics = {solver: 'hierarchicalRepulsion'};
         this.optionsBackup.physics = {solver:'barnesHut'};
       }
-      else if (typeof options.physics === 'object') {
+      else if (typeof allOptions.physics === 'object') {
         this.optionsBackup.physics = {solver:'barnesHut'};
-        if (options.physics.solver !== undefined) {
-          this.optionsBackup.physics = {solver:options.physics.solver};
+        if (allOptions.physics.solver !== undefined) {
+          this.optionsBackup.physics = {solver:allOptions.physics.solver};
         }
         allOptions.physics['solver'] = 'hierarchicalRepulsion';
       }
-      else if (options.physics !== false) {
+      else if (allOptions.physics !== false) {
         this.optionsBackup.physics = {solver:'barnesHut'};
         allOptions.physics['solver'] = 'hierarchicalRepulsion';
       }
@@ -98,21 +100,34 @@ class LayoutEngine {
 
       // disable smooth curves if nothing is defined. If smooth curves have been turned on, turn them into static smooth curves.
       if (allOptions.edges === undefined) {
-        this.optionsBackup.edges = {smooth:true, dynamic:true};
+        this.optionsBackup.edges = {smooth:{enabled:true, type:'dynamic'}};
         allOptions.edges = {smooth: false};
       }
       else if (allOptions.edges.smooth === undefined) {
-        this.optionsBackup.edges = {smooth:true, dynamic:true};
+        this.optionsBackup.edges = {smooth:{enabled:true, type:'dynamic'}};
         allOptions.edges.smooth = false;
       }
       else {
         if (typeof allOptions.edges.smooth === 'boolean') {
-          this.optionsBackup.edges = {smooth:allOptions.edges.smooth, dynamic:true};
-          allOptions.edges.smooth = {enabled: allOptions.edges.smooth, dynamic: false, type:type}
+          this.optionsBackup.edges = {smooth:allOptions.edges.smooth};
+          allOptions.edges.smooth = {enabled: allOptions.edges.smooth, type:type}
         }
         else {
-          this.optionsBackup.edges = {smooth: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled, dynamic:true};
-          allOptions.edges.smooth = {enabled: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled, dynamic: false, type:type}
+          // allow custom types except for dynamic
+          if (allOptions.edges.smooth.type !== undefined && allOptions.edges.smooth.type !== 'dynamic') {
+            type = allOptions.edges.smooth.type;
+          }
+
+          this.optionsBackup.edges = {
+            smooth: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled,
+            type:allOptions.edges.smooth.type === undefined ? 'dynamic' : allOptions.edges.smooth.type,
+            roundness: allOptions.edges.smooth.roundness === undefined ? 0.5 : allOptions.edges.smooth.roundness
+          };
+          allOptions.edges.smooth = {
+            enabled: allOptions.edges.smooth.enabled === undefined ? true : allOptions.edges.smooth.enabled,
+            type:type,
+            roundness: allOptions.edges.smooth.roundness === undefined ? 0.5 : allOptions.edges.smooth.roundness
+          }
         }
       }
 
@@ -316,7 +331,7 @@ class LayoutEngine {
         if (this.body.nodes.hasOwnProperty(nodeId)) {
           node = this.body.nodes[nodeId];
           if (node.edges.length === hubSize) {
-            this._setLevel(0, node);
+            this._setLevelByHubsize(0, node);
           }
         }
       }
@@ -332,7 +347,7 @@ class LayoutEngine {
    * @param parentId
    * @private
    */
-  _setLevel(level, node) {
+  _setLevelByHubsize(level, node) {
     if (this.hierarchicalLevels[node.id] !== undefined)
       return;
 
@@ -345,7 +360,7 @@ class LayoutEngine {
       else {
         childNode = node.edges[i].to;
       }
-      this._setLevel(level + 1, childNode);
+      this._setLevelByHubsize(level + 1, childNode);
     }
   }
 
diff --git a/lib/network/modules/ManipulationSystem.js b/lib/network/modules/ManipulationSystem.js
index 2a86ba8b..16b855df 100644
--- a/lib/network/modules/ManipulationSystem.js
+++ b/lib/network/modules/ManipulationSystem.js
@@ -253,7 +253,7 @@ class ManipulationSystem {
    *
    * @private
    */
-  editNodeMode() {
+  editNode() {
     // when using the gui, enable edit mode if it wasnt already.
     if (this.editMode !== true) {
       this.enableEditMode();
@@ -272,7 +272,7 @@ class ManipulationSystem {
 
         if (this.options.editNode.length === 2) {
           this.options.editNode(data, (finalizedData) => {
-            if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'delete') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
+            if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'editNode') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
               this.body.data.nodes.update(finalizedData);
               this.showManipulatorToolbar();
             }
@@ -632,9 +632,9 @@ class ManipulationSystem {
     util.recursiveDOMDelete(this.closeDiv);
 
     // remove the manipulation divs
-    this.canvas.frame.removeChild(this.manipulationDiv);
-    this.canvas.frame.removeChild(this.editModeDiv);
-    this.canvas.frame.removeChild(this.closeDiv);
+    if (this.manipulationDiv) {this.canvas.frame.removeChild(this.manipulationDiv);}
+    if (this.editModeDiv)     {this.canvas.frame.removeChild(this.editModeDiv);}
+    if (this.closeDiv)        {this.canvas.frame.removeChild(this.manipulationDiv);}
 
     // set the references to undefined
     this.manipulationDiv = undefined;
@@ -669,9 +669,9 @@ class ManipulationSystem {
   }
 
   _createEditNodeButton(locale) {
-    let button = this._createButton('editNodeMode', 'vis-button vis-edit', locale['editNode'] || this.options.locales['en']['editNode']);
+    let button = this._createButton('editNode', 'vis-button vis-edit', locale['editNode'] || this.options.locales['en']['editNode']);
     this.manipulationDiv.appendChild(button);
-    this._bindHammerToDiv(button, this.editNodeMode.bind(this));
+    this._bindHammerToDiv(button, this.editNode.bind(this));
   }
 
   _createEditEdgeButton(locale) {
@@ -946,7 +946,6 @@ class ManipulationSystem {
             physics: false,
             smooth: {
               enabled: true,
-              dynamic: false,
               type: 'continuous',
               roundness: 0.5
             }
diff --git a/lib/network/modules/NodesHandler.js b/lib/network/modules/NodesHandler.js
index 17459a57..70648a82 100644
--- a/lib/network/modules/NodesHandler.js
+++ b/lib/network/modules/NodesHandler.js
@@ -400,7 +400,7 @@ class NodesHandler {
    * @param nodeId
    * @returns {*}
    */
-  getEdges(nodeId) {
+  getConnectedEdges(nodeId) {
     let edgeList = [];
     if (this.body.nodes[nodeId] !== undefined) {
       let node = this.body.nodes[nodeId];
@@ -408,7 +408,11 @@ class NodesHandler {
         edgeList.push(node.edges[i].id)
       }
     }
-    return nodeList;
+    else {
+      console.log("NodeId provided for getConnectedEdges does not exist. Provided: ", nodeId)
+    }
+    console.log(edgeList)
+    return edgeList;
   }
 
 }
diff --git a/lib/network/modules/components/Edge.js b/lib/network/modules/components/Edge.js
index 9431e2ad..c667af1e 100644
--- a/lib/network/modules/components/Edge.js
+++ b/lib/network/modules/components/Edge.js
@@ -73,9 +73,6 @@ class Edge {
     if (options.value !== undefined)  {options.value = parseInt(options.value);}
 
 
-    // A node is connected when it has a from and to node that both exist in the network.body.nodes.
-    this.connect();
-
     // update label Module
     this.updateLabelModule();
 
@@ -84,6 +81,9 @@ class Edge {
     // if anything has been updates, reset the selection width and the hover width
     this._setInteractionWidths();
 
+    // A node is connected when it has a from and to node that both exist in the network.body.nodes.
+    this.connect();
+
     return dataChanged;
   }
 
@@ -267,6 +267,8 @@ class Edge {
         this.to.detachEdge(this);
       }
     }
+
+    this.edgeType.connect();
   }
 
 
diff --git a/lib/network/modules/components/NavigationHandler.js b/lib/network/modules/components/NavigationHandler.js
index 880c9cdb..1ef2fb72 100644
--- a/lib/network/modules/components/NavigationHandler.js
+++ b/lib/network/modules/components/NavigationHandler.js
@@ -52,8 +52,6 @@ class NavigationHandler {
       this.navigationHammers = [];
     }
 
-    this._navigationReleaseOverload = function() {};
-
     // clean up previous navigation items
     if (this.navigationDOM && this.navigationDOM['wrapper'] && this.navigationDOM['wrapper'].parentNode) {
       this.navigationDOM['wrapper'].parentNode.removeChild(this.navigationDOM['wrapper']);
@@ -160,7 +158,6 @@ class NavigationHandler {
     }
 
     if (this.options.keyboard.enabled === true) {
-
       if (this.options.keyboard.bindToWindow === true) {
         this.keycharm = keycharm({container: window, preventDefault: true});
       }
diff --git a/lib/network/modules/components/edges/BezierEdgeDynamic.js b/lib/network/modules/components/edges/BezierEdgeDynamic.js
index 12af8848..8d43f79e 100644
--- a/lib/network/modules/components/edges/BezierEdgeDynamic.js
+++ b/lib/network/modules/components/edges/BezierEdgeDynamic.js
@@ -8,17 +8,25 @@ class BezierEdgeDynamic extends BezierEdgeBase {
 
   setOptions(options) {
     this.options = options;
-    this.from = this.body.nodes[this.options.from];
-    this.to = this.body.nodes[this.options.to];
     this.id = this.options.id;
     this.setupSupportNode();
+    this.connect();
+  }
 
-    // fix weird behaviour
-    if (this.from.id === this.to.id) {
+  connect() {
+    this.from = this.body.nodes[this.options.from];
+    this.to = this.body.nodes[this.options.to];
+    if (this.from === undefined || this.to === undefined) {
       this.via.setOptions({physics:false})
     }
     else {
-      this.via.setOptions({physics:true})
+      // fix weird behaviour where a selfreferencing node has physics enabled
+      if (this.from.id === this.to.id) {
+        this.via.setOptions({physics: false})
+      }
+      else {
+        this.via.setOptions({physics: true})
+      }
     }
   }
 
diff --git a/lib/network/modules/components/edges/BezierEdgeStatic.js b/lib/network/modules/components/edges/BezierEdgeStatic.js
index 85ee953c..096bafa2 100644
--- a/lib/network/modules/components/edges/BezierEdgeStatic.js
+++ b/lib/network/modules/components/edges/BezierEdgeStatic.js
@@ -5,9 +5,6 @@ class BezierEdgeStatic extends BezierEdgeBase {
     super(options, body, labelModule);
   }
 
-  cleanup() {
-    return false;
-  }
   /**
    * Draw a line between two nodes
    * @param {CanvasRenderingContext2D} ctx
diff --git a/lib/network/modules/components/edges/StraightEdge.js b/lib/network/modules/components/edges/StraightEdge.js
index abf04fa2..0fc08a0f 100644
--- a/lib/network/modules/components/edges/StraightEdge.js
+++ b/lib/network/modules/components/edges/StraightEdge.js
@@ -5,9 +5,6 @@ class StraightEdge extends EdgeBase {
     super(options, body, labelModule);
   }
 
-  cleanup() {
-    return false;
-  }
   /**
    * Draw a line between two nodes
    * @param {CanvasRenderingContext2D} ctx
diff --git a/lib/network/modules/components/edges/util/EdgeBase.js b/lib/network/modules/components/edges/util/EdgeBase.js
index a4962c08..78f96fc5 100644
--- a/lib/network/modules/components/edges/util/EdgeBase.js
+++ b/lib/network/modules/components/edges/util/EdgeBase.js
@@ -11,6 +11,9 @@ class EdgeBase {
     this.hoverWidth = 1.5;
   }
 
+  connect() {}
+  cleanup() {return false}
+
   setOptions(options) {
     this.options = options;
     this.from = this.body.nodes[this.options.from];
@@ -33,7 +36,7 @@ class EdgeBase {
    */
   drawLine(ctx, selected, hover) {
     // set style
-    ctx.strokeStyle = this.getColor(ctx);
+    ctx.strokeStyle = this.getColor(ctx, selected, hover);
     ctx.lineWidth = this.getLineWidth(selected, hover);
     let via = undefined;
     if (this.options.dashes !== false) {
@@ -256,7 +259,7 @@ class EdgeBase {
   }
 
 
-  getColor(ctx) {
+  getColor(ctx, selected, hover) {
     let colorOptions = this.options.color;
     if (colorOptions.inherit !== false) {
       // when this is a loop edge, just use the 'from' method
@@ -306,10 +309,10 @@ class EdgeBase {
     this.colorDirty = false;
 
 
-    if (this.selected === true) {
+    if (selected === true) {
       return this.color.highlight;
     }
-    else if (this.hover === true) {
+    else if (hover === true) {
       return this.color.hover;
     }
     else {
@@ -409,7 +412,7 @@ class EdgeBase {
    */
   drawArrowHead(ctx, position, viaNode, selected, hover) {
     // set style
-    ctx.strokeStyle = this.getColor(ctx);
+    ctx.strokeStyle = this.getColor(ctx, selected, hover);
     ctx.fillStyle = ctx.strokeStyle;
     ctx.lineWidth = this.getLineWidth(selected, hover);
 
diff --git a/lib/network/modules/components/nodes/util/CircleImageBase.js b/lib/network/modules/components/nodes/util/CircleImageBase.js
index d1d64a19..b2624787 100644
--- a/lib/network/modules/components/nodes/util/CircleImageBase.js
+++ b/lib/network/modules/components/nodes/util/CircleImageBase.js
@@ -4,12 +4,27 @@ class CircleImageBase extends NodeBase {
   constructor(options, body, labelModule) {
     super(options, body, labelModule);
     this.labelOffset = 0;
+    this.imageLoaded = false;
   }
 
+  /**
+   * This function resizes the image by the options size when the image has not yet loaded. If the image has loaded, we
+   * force the update of the size again.
+   *
+   * @private
+   */
   _resizeImage() {
-    if (!this.width || !this.height) {  // undefined or 0
-      var width, height, ratio;
+    let force = false;
+    if (!this.imageObj.width || !this.imageObj.height) { // undefined or 0
+      this.imageLoaded = false;
+    }
+    else if (this.imageLoaded === false) {
+      this.imageLoaded = true;
+      force = true;
+    }
 
+    if (!this.width || !this.height || force === true) {  // undefined or 0
+      var width, height, ratio;
       if (this.imageObj.width && this.imageObj.height) { // not undefined or 0
         width = 0;
         height = 0;
@@ -33,6 +48,7 @@ class CircleImageBase extends NodeBase {
       this.height = height;
       this.radius = 0.5*this.width;
     }
+
   }
 
   _drawRawCircle(ctx, x, y, selected, hover, size) {
@@ -59,6 +75,7 @@ class CircleImageBase extends NodeBase {
   }
 
   _drawImageAtPosition(ctx) {
+    console.log(this.options.label, this.imageObj.width)
     if (this.imageObj.width != 0) {
       // draw the image
       ctx.globalAlpha = 1.0;
diff --git a/lib/shared/Configurator.js b/lib/shared/Configurator.js
index 2083ef7c..8401495d 100644
--- a/lib/shared/Configurator.js
+++ b/lib/shared/Configurator.js
@@ -313,7 +313,10 @@ class Configurator {
     range.step = step;
 
     if (value !== undefined) {
-      if (value * 0.1 < min) {
+      if (value < 0 && value * 2 < min) {
+        range.min = value*2;
+      }
+      else if (value * 0.1 < min) {
         range.min = value / 10;
       }
       if (value * 2 > max && max !== 1) {
diff --git a/lib/util.js b/lib/util.js
index 7787d844..91e55e95 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -17,10 +17,16 @@ exports.isNumber = function(object) {
 };
 
 
+/**
+ * Remove everything in the DOM object
+ * @param DOMobject
+ */
 exports.recursiveDOMDelete = function(DOMobject) {
-  while (DOMobject.hasChildNodes() == true) {
-    exports.recursiveDOMDelete(DOMobject.firstChild);
-    DOMobject.removeChild(DOMobject.firstChild);
+  if (DOMobject) {
+    while (DOMobject.hasChildNodes() === true) {
+      exports.recursiveDOMDelete(DOMobject.firstChild);
+      DOMobject.removeChild(DOMobject.firstChild);
+    }
   }
 };
 
diff --git a/test/networkTest.html b/test/networkTest.html
index e6f9bd46..792b9947 100644
--- a/test/networkTest.html
+++ b/test/networkTest.html
@@ -3,28 +3,73 @@
 <head>
     <title>Network | Basic usage</title>
 
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+    <script type="text/javascript" src="../dist/vis.js"></script>
+    <link href="../dist/vis.css" rel="stylesheet" type="text/css" />
 
     <style type="text/css">
-        #div_graph {
+        #mynetwork {
             width: 1400px;
             height: 1000px;
             border: 1px solid lightgray;
         }
     </style>
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+    </script>
 </head>
+
 <body>
 
 <p>
     Create a simple network with some nodes and edges.
 </p>
 
-<div id="div_graph"></div>
+<div id="mynetwork"></div>
 
 <script type="text/javascript">
+    var nodes = [{id:5538,label:"Wladimir Wladimirowitsch Putin",type:"PERSON",image:"",group:13,zoom:0},{id:9728,label:"Klaus und Sorg",type:"PERSON",image:"",group:15,zoom:0},{id:137,label:"Ola John",type:"PERSON",image:"",group:30,zoom:0},{id:5305,label:"Barclays",type:"ORGANIZATION",image:"",group:0,zoom:0},{id:218,label:"Intel",type:"ORGANIZATION",image:"",group:36,zoom:0},{id:559,label:"Roger Schmidt",type:"PERSON",image:"",group:8,zoom:0},{id:765,label:"Fresenius",type:"ORGANIZATION",image:"",group:32,zoom:0},{id:173,label:"Eintracht Braunschweig",type:"ORGANIZATION",image:"",group:28,zoom:0},{id:1707,label:"\"Wall Street Journal\"",type:"ORGANIZATION",image:"",group:36,zoom:0},{id:182,label:"1.FC Nürnberg",type:"ORGANIZATION",image:"",group:8,zoom:0},{id:8077,label:"Medica",type:"ORGANIZATION",image:"",group:21,zoom:0},{id:1142,label:"Durow",type:"PERSON",image:"",group:8,zoom:0},{id:828,label:"Sky",type:"ORGANIZATION",image:"",group:8,zoom:0},{id:478,label:"WEX",type:"ORGANIZATION",image:"",group:11,zoom:0},{id:577,label:"Elke Strathmann",type:"PERSON",image:"",group:26,zoom:0},{id:1806,label:"Gribkowsky",type:"PERSON",image:"",group:38,zoom:0},{id:1447,label:"Franziskus",type:"PERSON",image:"",group:31,zoom:0},{id:1788,label:"Premier League",type:"ORGANIZATION",image:"",group:8,zoom:0},{id:451,label:"K+S",type:"ORGANIZATION",image:"",group:10,zoom:0},{id:2658,label:"Thomas Bach",type:"PERSON",image:"",group:24,zoom:0},{id:10114,label:"Bongarts/Getty Images Hertha BSC",type:"ORGANIZATION",image:"",group:19,zoom:0},{id:4076,label:"Wladimirs",type:"PERSON",image:"",group:13,zoom:0},{id:2703,label:"Nintendo Pocket Football Club",type:"ORGANIZATION",image:"",group:37,zoom:0},{id:5332,label:"AWD",type:"ORGANIZATION",image:"",group:27,zoom:0},{id:23,label:"ORF",type:"ORGANIZATION",image:"",group:2,zoom:0},{id:2302,label:"Beiersdorf",type:"ORGANIZATION",image:"",group:10,zoom:0},{id:517,label:"Nokias",type:"PERSON",image:"",group:36,zoom:0},{id:3953,label:"Peter Löscher",type:"PERSON",image:"",group:6,zoom:0},{id:4805,label:"Maserati",type:"ORGANIZATION",image:"",group:26,zoom:0},{id:2374,label:"Fitch",type:"PERSON",image:"",group:26,zoom:0},{id:4213,label:"Christian Catrina",type:"PERSON",image:"",group:17,zoom:0},{id:2580,label:"Kumbela",type:"PERSON",image:"",group:19,zoom:0},{id:77,label:"ÖVP",type:"ORGANIZATION",image:"",group:6,zoom:0},{id:804,label:"SiK",type:"ORGANIZATION",image:"",group:17,zoom:0},{id:158,label:"FIFA",type:"ORGANIZATION",image:"",group:5,zoom:0},{id:8654,label:"Gillérons",type:"PERSON",image:"",group:5,zoom:0},{id:3047,label:"Bayer 04 Leverkusen\"",type:"ORGANIZATION",image:"",group:29,zoom:0},{id:364,label:"S&P",type:"ORGANIZATION",image:"",group:26,zoom:0},{id:7748,label:"Chris Beard",type:"PERSON",image:"",group:23,zoom:0},{id:8089,label:"Moodys Investors Service",type:"ORGANIZATION",image:"",group:4,zoom:0},{id:41,label:"Swisscom",type:"ORGANIZATION",image:"",group:32,zoom:0},{id:2006,label:"BDP",type:"ORGANIZATION",image:"",group:17,zoom:0},{id:113,label:"Rolls-Royce Motor Cars",type:"ORGANIZATION",image:"",group:33,zoom:0},{id:9695,label:"Frankfurter Wertpapierbörse ( Prime Standard",type:"ORGANIZATION",image:"",group:3,zoom:0},{id:1333,label:"Warschauer Börse",type:"ORGANIZATION",image:"",group:3,zoom:0},{id:346,label:"Bongarts/Getty Images",type:"ORGANIZATION",image:"",group:18,zoom:0},{id:9103,label:"Simyo",type:"ORGANIZATION",image:"",group:12,zoom:0},{id:768,label:"Sony",type:"ORGANIZATION",image:"",group:37,zoom:0},{id:5535,label:"Schweizerischen Bankiervereinigung",type:"ORGANIZATION",image:"",group:7,zoom:0},{id:134,label:"Defensivstratege Milan Badelj",type:"ORGANIZATION",image:"",group:30,zoom:0},{id:5436,label:"EU-Kommission",type:"ORGANIZATION",image:"",group:12,zoom:0},{id:6100,label:"Orhan Ademi",type:"PERSON",image:"",group:28,zoom:0},{id:2969,label:"Thorsten Dirks",type:"PERSON",image:"",group:12,zoom:0},{id:2637,label:"Wladimir",type:"PERSON",image:"",group:13,zoom:0},{id:26,label:"Erdogan",type:"PERSON",image:"",group:36,zoom:0},{id:1659,label:"SNB",type:"ORGANIZATION",image:"",group:7,zoom:0},{id:645,label:"Microsofts",type:"PERSON",image:"",group:35,zoom:0},{id:7347,label:"Franziskus I.\"",type:"PERSON",image:"",group:31,zoom:0},{id:654,label:"PLO",type:"ORGANIZATION",image:"",group:34,zoom:0},{id:4575,label:"\"Sport Bild\"",type:"ORGANIZATION",image:"",group:15,zoom:0},{id:3148,label:"Goldman Sachs",type:"ORGANIZATION",image:"",group:4,zoom:0},{id:1049,label:"ING",type:"ORGANIZATION",image:"",group:38,zoom:0},{id:10487,label:"Jörg",type:"PERSON",image:"",group:21,zoom:0},{id:5418,label:"EBRD",type:"ORGANIZATION",image:"",group:34,zoom:0},{id:663,label:"Igor Setschin",type:"PERSON",image:"",group:8,zoom:0},{id:8262,label:"Schweizerische Nationalbank",type:"ORGANIZATION",image:"",group:7,zoom:0},{id:107,label:"Google",type:"ORGANIZATION",image:"",group:36,zoom:0},{id:1291,label:"Miley Cyrus",type:"PERSON",image:"",group:25,zoom:0},{id:2529,label:"Pep Guardiola",type:"PERSON",image:"",group:8,zoom:0},{id:8343,label:"Rafael van der Vaart",type:"PERSON",image:"",group:30,zoom:0},{id:1713,label:"Radschub",type:"PERSON",image:"",group:34,zoom:0},{id:11,label:"Amazon",type:"ORGANIZATION",image:"",group:36,zoom:0},{id:6722,label:"Pierre-Michel Lasogga",type:"PERSON",image:"",group:30,zoom:0},{id:2855,label:"Nike",type:"ORGANIZATION",image:"",group:10,zoom:0},{id:6767,label:"John Legere",type:"PERSON",image:"",group:4,zoom:0},{id:298,label:"Domi Kumbela",type:"PERSON",image:"",group:28,zoom:0},{id:5448,label:"Klaus Steidle",type:"PERSON",image:"",group:20,zoom:0},{id:711,label:"Hewlett Packard",type:"PERSON",image:"",group:35,zoom:0},{id:343,label:"Mozilla",type:"ORGANIZATION",image:"",group:23,zoom:0},{id:693,label:"Oliver Kreuzer",type:"PERSON",image:"",group:18,zoom:0},{id:576,label:"Continental",type:"ORGANIZATION",image:"",group:0,zoom:0},{id:8041,label:"Stefan Brändle",type:"PERSON",image:"",group:20,zoom:0},{id:361,label:"Tamedia",type:"ORGANIZATION",image:"",group:32,zoom:0},{id:675,label:"CJSC Binnopharm",type:"PERSON",image:"",group:32,zoom:0},{id:2200,label:"Red Bull Salzburg",type:"ORGANIZATION",image:"",group:8,zoom:0},{id:1868,label:"DZ 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+
+
+    // create a network
+    var container = document.getElementById('mynetwork');
+    var data = {
+        nodes: nodes,
+        edges: edges
+    };
+
+    var options = {nodes:{shape:'circle'},layout:{randomSeed:8}, edges:{smooth:false},physics:{stabilization:false}, configure:'physics'};
+    var network = new vis.Network(container, data, options);
+
 
+
+    network.on("selectNode", function(params) {
+        if (params.nodes.length == 1) {
+            if (network.isCluster(params.nodes[0]) == true) {
+                network.openCluster(params.nodes[0])
+            }
+        }
+    })
+
+//    clusterByCid()
+
+    function clusterByCid() {
+        for (var i = 0; i < 39; i++) {
+            var clusterOptionsByData = {
+                joinCondition:function(childOptions) {
+                    return childOptions.group == i;
+                },
+                clusterNodeProperties: {id:'cidCluster' + i, label: 'cluster: ' + i, borderWidth:3,     shape:'database'}
+            }
+            network.cluster(clusterOptionsByData);
+        }
+    }
 </script>
 
+
+<button id="btnPrevious" type="button" onclick="StepBack();"><<</button>
+<button id="btnNext" type="button" onclick="StepNext();">>></button>
+
 </body>
 </html>