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- var util = require('../../../util');
- var RepulsionMixin = require('./RepulsionMixin');
- var HierarchialRepulsionMixin = require('./HierarchialRepulsionMixin');
- var BarnesHutMixin = require('./BarnesHutMixin');
-
- /**
- * Toggling barnes Hut calculation on and off.
- *
- * @private
- */
- exports._toggleBarnesHut = function () {
- this.constants.physics.barnesHut.enabled = !this.constants.physics.barnesHut.enabled;
- this._loadSelectedForceSolver();
- this.moving = true;
- this.start();
- };
-
-
- /**
- * This loads the node force solver based on the barnes hut or repulsion algorithm
- *
- * @private
- */
- exports._loadSelectedForceSolver = function () {
- // this overloads the this._calculateNodeForces
- if (this.constants.physics.barnesHut.enabled == true) {
- this._clearMixin(RepulsionMixin);
- this._clearMixin(HierarchialRepulsionMixin);
-
- this.constants.physics.centralGravity = this.constants.physics.barnesHut.centralGravity;
- this.constants.physics.springLength = this.constants.physics.barnesHut.springLength;
- this.constants.physics.springConstant = this.constants.physics.barnesHut.springConstant;
- this.constants.physics.damping = this.constants.physics.barnesHut.damping;
-
- this._loadMixin(BarnesHutMixin);
- }
- else if (this.constants.physics.hierarchicalRepulsion.enabled == true) {
- this._clearMixin(BarnesHutMixin);
- this._clearMixin(RepulsionMixin);
-
- this.constants.physics.centralGravity = this.constants.physics.hierarchicalRepulsion.centralGravity;
- this.constants.physics.springLength = this.constants.physics.hierarchicalRepulsion.springLength;
- this.constants.physics.springConstant = this.constants.physics.hierarchicalRepulsion.springConstant;
- this.constants.physics.damping = this.constants.physics.hierarchicalRepulsion.damping;
-
- this._loadMixin(HierarchialRepulsionMixin);
- }
- else {
- this._clearMixin(BarnesHutMixin);
- this._clearMixin(HierarchialRepulsionMixin);
- this.barnesHutTree = undefined;
-
- this.constants.physics.centralGravity = this.constants.physics.repulsion.centralGravity;
- this.constants.physics.springLength = this.constants.physics.repulsion.springLength;
- this.constants.physics.springConstant = this.constants.physics.repulsion.springConstant;
- this.constants.physics.damping = this.constants.physics.repulsion.damping;
-
- this._loadMixin(RepulsionMixin);
- }
- };
-
- /**
- * Before calculating the forces, we check if we need to cluster to keep up performance and we check
- * if there is more than one node. If it is just one node, we dont calculate anything.
- *
- * @private
- */
- exports._initializeForceCalculation = function () {
- // stop calculation if there is only one node
- if (this.nodeIndices.length == 1) {
- this.nodes[this.nodeIndices[0]]._setForce(0, 0);
- }
- else {
- // if there are too many nodes on screen, we cluster without repositioning
- if (this.nodeIndices.length > this.constants.clustering.clusterThreshold && this.constants.clustering.enabled == true) {
- this.clusterToFit(this.constants.clustering.reduceToNodes, false);
- }
-
- // we now start the force calculation
- this._calculateForces();
- }
- };
-
-
- /**
- * Calculate the external forces acting on the nodes
- * Forces are caused by: edges, repulsing forces between nodes, gravity
- * @private
- */
- exports._calculateForces = function () {
- // Gravity is required to keep separated groups from floating off
- // the forces are reset to zero in this loop by using _setForce instead
- // of _addForce
-
- this._calculateGravitationalForces();
- this._calculateNodeForces();
-
- if (this.constants.springConstant > 0) {
- if (this.constants.smoothCurves.enabled == true && this.constants.smoothCurves.dynamic == true) {
- this._calculateSpringForcesWithSupport();
- }
- else {
- if (this.constants.physics.hierarchicalRepulsion.enabled == true) {
- this._calculateHierarchicalSpringForces();
- }
- else {
- this._calculateSpringForces();
- }
- }
- }
- };
-
-
- /**
- * Smooth curves are created by adding invisible nodes in the center of the edges. These nodes are also
- * handled in the calculateForces function. We then use a quadratic curve with the center node as control.
- * This function joins the datanodes and invisible (called support) nodes into one object.
- * We do this so we do not contaminate this.nodes with the support nodes.
- *
- * @private
- */
- exports._updateCalculationNodes = function () {
- if (this.constants.smoothCurves.enabled == true && this.constants.smoothCurves.dynamic == true) {
- this.calculationNodes = {};
- this.calculationNodeIndices = [];
-
- for (var nodeId in this.nodes) {
- if (this.nodes.hasOwnProperty(nodeId)) {
- this.calculationNodes[nodeId] = this.nodes[nodeId];
- }
- }
- var supportNodes = this.sectors['support']['nodes'];
- for (var supportNodeId in supportNodes) {
- if (supportNodes.hasOwnProperty(supportNodeId)) {
- if (this.edges.hasOwnProperty(supportNodes[supportNodeId].parentEdgeId)) {
- this.calculationNodes[supportNodeId] = supportNodes[supportNodeId];
- }
- else {
- supportNodes[supportNodeId]._setForce(0, 0);
- }
- }
- }
-
- for (var idx in this.calculationNodes) {
- if (this.calculationNodes.hasOwnProperty(idx)) {
- this.calculationNodeIndices.push(idx);
- }
- }
- }
- else {
- this.calculationNodes = this.nodes;
- this.calculationNodeIndices = this.nodeIndices;
- }
- };
-
-
- /**
- * this function applies the central gravity effect to keep groups from floating off
- *
- * @private
- */
- exports._calculateGravitationalForces = function () {
- var dx, dy, distance, node, i;
- var nodes = this.calculationNodes;
- var gravity = this.constants.physics.centralGravity;
- var gravityForce = 0;
-
- for (i = 0; i < this.calculationNodeIndices.length; i++) {
- node = nodes[this.calculationNodeIndices[i]];
- node.damping = this.constants.physics.damping; // possibly add function to alter damping properties of clusters.
- // gravity does not apply when we are in a pocket sector
- if (this._sector() == "default" && gravity != 0) {
- dx = -node.x;
- dy = -node.y;
- distance = Math.sqrt(dx * dx + dy * dy);
-
- gravityForce = (distance == 0) ? 0 : (gravity / distance);
- node.fx = dx * gravityForce;
- node.fy = dy * gravityForce;
- }
- else {
- node.fx = 0;
- node.fy = 0;
- }
- }
- };
-
-
-
-
- /**
- * this function calculates the effects of the springs in the case of unsmooth curves.
- *
- * @private
- */
- exports._calculateSpringForces = function () {
- var edgeLength, edge, edgeId;
- var dx, dy, fx, fy, springForce, distance;
- var edges = this.edges;
-
- // forces caused by the edges, modelled as springs
- for (edgeId in edges) {
- if (edges.hasOwnProperty(edgeId)) {
- edge = edges[edgeId];
- if (edge.connected) {
- // only calculate forces if nodes are in the same sector
- if (this.nodes.hasOwnProperty(edge.toId) && this.nodes.hasOwnProperty(edge.fromId)) {
- edgeLength = edge.customLength ? edge.length : this.constants.physics.springLength;
- // this implies that the edges between big clusters are longer
- edgeLength += (edge.to.clusterSize + edge.from.clusterSize - 2) * this.constants.clustering.edgeGrowth;
-
- dx = (edge.from.x - edge.to.x);
- dy = (edge.from.y - edge.to.y);
- distance = Math.sqrt(dx * dx + dy * dy);
-
- if (distance == 0) {
- distance = 0.01;
- }
-
- // the 1/distance is so the fx and fy can be calculated without sine or cosine.
- springForce = this.constants.physics.springConstant * (edgeLength - distance) / distance;
-
- fx = dx * springForce;
- fy = dy * springForce;
-
- edge.from.fx += fx;
- edge.from.fy += fy;
- edge.to.fx -= fx;
- edge.to.fy -= fy;
- }
- }
- }
- }
- };
-
-
-
-
- /**
- * This function calculates the springforces on the nodes, accounting for the support nodes.
- *
- * @private
- */
- exports._calculateSpringForcesWithSupport = function () {
- var edgeLength, edge, edgeId, combinedClusterSize;
- var edges = this.edges;
-
- // forces caused by the edges, modelled as springs
- for (edgeId in edges) {
- if (edges.hasOwnProperty(edgeId)) {
- edge = edges[edgeId];
- if (edge.connected) {
- // only calculate forces if nodes are in the same sector
- if (this.nodes.hasOwnProperty(edge.toId) && this.nodes.hasOwnProperty(edge.fromId)) {
- if (edge.via != null) {
- var node1 = edge.to;
- var node2 = edge.via;
- var node3 = edge.from;
-
- edgeLength = edge.customLength ? edge.length : this.constants.physics.springLength;
-
- combinedClusterSize = node1.clusterSize + node3.clusterSize - 2;
-
- // this implies that the edges between big clusters are longer
- edgeLength += combinedClusterSize * this.constants.clustering.edgeGrowth;
- this._calculateSpringForce(node1, node2, 0.5 * edgeLength);
- this._calculateSpringForce(node2, node3, 0.5 * edgeLength);
- }
- }
- }
- }
- }
- };
-
-
- /**
- * This is the code actually performing the calculation for the function above. It is split out to avoid repetition.
- *
- * @param node1
- * @param node2
- * @param edgeLength
- * @private
- */
- exports._calculateSpringForce = function (node1, node2, edgeLength) {
- var dx, dy, fx, fy, springForce, distance;
-
- dx = (node1.x - node2.x);
- dy = (node1.y - node2.y);
- distance = Math.sqrt(dx * dx + dy * dy);
-
- if (distance == 0) {
- distance = 0.01;
- }
-
- // the 1/distance is so the fx and fy can be calculated without sine or cosine.
- springForce = this.constants.physics.springConstant * (edgeLength - distance) / distance;
-
- fx = dx * springForce;
- fy = dy * springForce;
-
- node1.fx += fx;
- node1.fy += fy;
- node2.fx -= fx;
- node2.fy -= fy;
- };
-
-
- /**
- * Load the HTML for the physics config and bind it
- * @private
- */
- exports._loadPhysicsConfiguration = function () {
- if (this.physicsConfiguration === undefined) {
- this.backupConstants = {};
- util.deepExtend(this.backupConstants,this.constants);
-
- var hierarchicalLayoutDirections = ["LR", "RL", "UD", "DU"];
- this.physicsConfiguration = document.createElement('div');
- this.physicsConfiguration.className = "PhysicsConfiguration";
- this.physicsConfiguration.innerHTML = '' +
- '<table><tr><td><b>Simulation Mode:</b></td></tr>' +
- '<tr>' +
- '<td width="120px"><input type="radio" name="graph_physicsMethod" id="graph_physicsMethod1" value="BH" checked="checked">Barnes Hut</td>' +
- '<td width="120px"><input type="radio" name="graph_physicsMethod" id="graph_physicsMethod2" value="R">Repulsion</td>' +
- '<td width="120px"><input type="radio" name="graph_physicsMethod" id="graph_physicsMethod3" value="H">Hierarchical</td>' +
- '</tr>' +
- '</table>' +
- '<table id="graph_BH_table" style="display:none">' +
- '<tr><td><b>Barnes Hut</b></td></tr>' +
- '<tr>' +
- '<td width="150px">gravitationalConstant</td><td>0</td><td><input type="range" min="0" max="20000" value="' + (-1 * this.constants.physics.barnesHut.gravitationalConstant) + '" step="25" style="width:300px" id="graph_BH_gc"></td><td width="50px">-20000</td><td><input value="' + (-1 * this.constants.physics.barnesHut.gravitationalConstant) + '" id="graph_BH_gc_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">centralGravity</td><td>0</td><td><input type="range" min="0" max="3" value="' + this.constants.physics.barnesHut.centralGravity + '" step="0.05" style="width:300px" id="graph_BH_cg"></td><td>3</td><td><input value="' + this.constants.physics.barnesHut.centralGravity + '" id="graph_BH_cg_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">springLength</td><td>0</td><td><input type="range" min="0" max="500" value="' + this.constants.physics.barnesHut.springLength + '" step="1" style="width:300px" id="graph_BH_sl"></td><td>500</td><td><input value="' + this.constants.physics.barnesHut.springLength + '" id="graph_BH_sl_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">springConstant</td><td>0</td><td><input type="range" min="0" max="0.5" value="' + this.constants.physics.barnesHut.springConstant + '" step="0.001" style="width:300px" id="graph_BH_sc"></td><td>0.5</td><td><input value="' + this.constants.physics.barnesHut.springConstant + '" id="graph_BH_sc_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">damping</td><td>0</td><td><input type="range" min="0" max="0.3" value="' + this.constants.physics.barnesHut.damping + '" step="0.005" style="width:300px" id="graph_BH_damp"></td><td>0.3</td><td><input value="' + this.constants.physics.barnesHut.damping + '" id="graph_BH_damp_value" style="width:60px"></td>' +
- '</tr>' +
- '</table>' +
- '<table id="graph_R_table" style="display:none">' +
- '<tr><td><b>Repulsion</b></td></tr>' +
- '<tr>' +
- '<td width="150px">nodeDistance</td><td>0</td><td><input type="range" min="0" max="300" value="' + this.constants.physics.repulsion.nodeDistance + '" step="1" style="width:300px" id="graph_R_nd"></td><td width="50px">300</td><td><input value="' + this.constants.physics.repulsion.nodeDistance + '" id="graph_R_nd_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">centralGravity</td><td>0</td><td><input type="range" min="0" max="3" value="' + this.constants.physics.repulsion.centralGravity + '" step="0.05" style="width:300px" id="graph_R_cg"></td><td>3</td><td><input value="' + this.constants.physics.repulsion.centralGravity + '" id="graph_R_cg_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">springLength</td><td>0</td><td><input type="range" min="0" max="500" value="' + this.constants.physics.repulsion.springLength + '" step="1" style="width:300px" id="graph_R_sl"></td><td>500</td><td><input value="' + this.constants.physics.repulsion.springLength + '" id="graph_R_sl_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">springConstant</td><td>0</td><td><input type="range" min="0" max="0.5" value="' + this.constants.physics.repulsion.springConstant + '" step="0.001" style="width:300px" id="graph_R_sc"></td><td>0.5</td><td><input value="' + this.constants.physics.repulsion.springConstant + '" id="graph_R_sc_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">damping</td><td>0</td><td><input type="range" min="0" max="0.3" value="' + this.constants.physics.repulsion.damping + '" step="0.005" style="width:300px" id="graph_R_damp"></td><td>0.3</td><td><input value="' + this.constants.physics.repulsion.damping + '" id="graph_R_damp_value" style="width:60px"></td>' +
- '</tr>' +
- '</table>' +
- '<table id="graph_H_table" style="display:none">' +
- '<tr><td width="150"><b>Hierarchical</b></td></tr>' +
- '<tr>' +
- '<td width="150px">nodeDistance</td><td>0</td><td><input type="range" min="0" max="300" value="' + this.constants.physics.hierarchicalRepulsion.nodeDistance + '" step="1" style="width:300px" id="graph_H_nd"></td><td width="50px">300</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.nodeDistance + '" id="graph_H_nd_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">centralGravity</td><td>0</td><td><input type="range" min="0" max="3" value="' + this.constants.physics.hierarchicalRepulsion.centralGravity + '" step="0.05" style="width:300px" id="graph_H_cg"></td><td>3</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.centralGravity + '" id="graph_H_cg_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">springLength</td><td>0</td><td><input type="range" min="0" max="500" value="' + this.constants.physics.hierarchicalRepulsion.springLength + '" step="1" style="width:300px" id="graph_H_sl"></td><td>500</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.springLength + '" id="graph_H_sl_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">springConstant</td><td>0</td><td><input type="range" min="0" max="0.5" value="' + this.constants.physics.hierarchicalRepulsion.springConstant + '" step="0.001" style="width:300px" id="graph_H_sc"></td><td>0.5</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.springConstant + '" id="graph_H_sc_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">damping</td><td>0</td><td><input type="range" min="0" max="0.3" value="' + this.constants.physics.hierarchicalRepulsion.damping + '" step="0.005" style="width:300px" id="graph_H_damp"></td><td>0.3</td><td><input value="' + this.constants.physics.hierarchicalRepulsion.damping + '" id="graph_H_damp_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">direction</td><td>1</td><td><input type="range" min="0" max="3" value="' + hierarchicalLayoutDirections.indexOf(this.constants.hierarchicalLayout.direction) + '" step="1" style="width:300px" id="graph_H_direction"></td><td>4</td><td><input value="' + this.constants.hierarchicalLayout.direction + '" id="graph_H_direction_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">levelSeparation</td><td>1</td><td><input type="range" min="0" max="500" value="' + this.constants.hierarchicalLayout.levelSeparation + '" step="1" style="width:300px" id="graph_H_levsep"></td><td>500</td><td><input value="' + this.constants.hierarchicalLayout.levelSeparation + '" id="graph_H_levsep_value" style="width:60px"></td>' +
- '</tr>' +
- '<tr>' +
- '<td width="150px">nodeSpacing</td><td>1</td><td><input type="range" min="0" max="500" value="' + this.constants.hierarchicalLayout.nodeSpacing + '" step="1" style="width:300px" id="graph_H_nspac"></td><td>500</td><td><input value="' + this.constants.hierarchicalLayout.nodeSpacing + '" id="graph_H_nspac_value" style="width:60px"></td>' +
- '</tr>' +
- '</table>' +
- '<table><tr><td><b>Options:</b></td></tr>' +
- '<tr>' +
- '<td width="180px"><input type="button" id="graph_toggleSmooth" value="Toggle smoothCurves" style="width:150px"></td>' +
- '<td width="180px"><input type="button" id="graph_repositionNodes" value="Reinitialize" style="width:150px"></td>' +
- '<td width="180px"><input type="button" id="graph_generateOptions" value="Generate Options" style="width:150px"></td>' +
- '</tr>' +
- '</table>'
- this.containerElement.parentElement.insertBefore(this.physicsConfiguration, this.containerElement);
- this.optionsDiv = document.createElement("div");
- this.optionsDiv.style.fontSize = "14px";
- this.optionsDiv.style.fontFamily = "verdana";
- this.containerElement.parentElement.insertBefore(this.optionsDiv, this.containerElement);
-
- var rangeElement;
- rangeElement = document.getElementById('graph_BH_gc');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_gc', -1, "physics_barnesHut_gravitationalConstant");
- rangeElement = document.getElementById('graph_BH_cg');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_cg', 1, "physics_centralGravity");
- rangeElement = document.getElementById('graph_BH_sc');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_sc', 1, "physics_springConstant");
- rangeElement = document.getElementById('graph_BH_sl');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_sl', 1, "physics_springLength");
- rangeElement = document.getElementById('graph_BH_damp');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_BH_damp', 1, "physics_damping");
-
- rangeElement = document.getElementById('graph_R_nd');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_nd', 1, "physics_repulsion_nodeDistance");
- rangeElement = document.getElementById('graph_R_cg');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_cg', 1, "physics_centralGravity");
- rangeElement = document.getElementById('graph_R_sc');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_sc', 1, "physics_springConstant");
- rangeElement = document.getElementById('graph_R_sl');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_sl', 1, "physics_springLength");
- rangeElement = document.getElementById('graph_R_damp');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_R_damp', 1, "physics_damping");
-
- rangeElement = document.getElementById('graph_H_nd');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_nd', 1, "physics_hierarchicalRepulsion_nodeDistance");
- rangeElement = document.getElementById('graph_H_cg');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_cg', 1, "physics_centralGravity");
- rangeElement = document.getElementById('graph_H_sc');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_sc', 1, "physics_springConstant");
- rangeElement = document.getElementById('graph_H_sl');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_sl', 1, "physics_springLength");
- rangeElement = document.getElementById('graph_H_damp');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_damp', 1, "physics_damping");
- rangeElement = document.getElementById('graph_H_direction');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_direction', hierarchicalLayoutDirections, "hierarchicalLayout_direction");
- rangeElement = document.getElementById('graph_H_levsep');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_levsep', 1, "hierarchicalLayout_levelSeparation");
- rangeElement = document.getElementById('graph_H_nspac');
- rangeElement.onchange = showValueOfRange.bind(this, 'graph_H_nspac', 1, "hierarchicalLayout_nodeSpacing");
-
- var radioButton1 = document.getElementById("graph_physicsMethod1");
- var radioButton2 = document.getElementById("graph_physicsMethod2");
- var radioButton3 = document.getElementById("graph_physicsMethod3");
- radioButton2.checked = true;
- if (this.constants.physics.barnesHut.enabled) {
- radioButton1.checked = true;
- }
- if (this.constants.hierarchicalLayout.enabled) {
- radioButton3.checked = true;
- }
-
- var graph_toggleSmooth = document.getElementById("graph_toggleSmooth");
- var graph_repositionNodes = document.getElementById("graph_repositionNodes");
- var graph_generateOptions = document.getElementById("graph_generateOptions");
-
- graph_toggleSmooth.onclick = graphToggleSmoothCurves.bind(this);
- graph_repositionNodes.onclick = graphRepositionNodes.bind(this);
- graph_generateOptions.onclick = graphGenerateOptions.bind(this);
- if (this.constants.smoothCurves == true && this.constants.dynamicSmoothCurves == false) {
- graph_toggleSmooth.style.background = "#A4FF56";
- }
- else {
- graph_toggleSmooth.style.background = "#FF8532";
- }
-
-
- switchConfigurations.apply(this);
-
- radioButton1.onchange = switchConfigurations.bind(this);
- radioButton2.onchange = switchConfigurations.bind(this);
- radioButton3.onchange = switchConfigurations.bind(this);
- }
- };
-
- /**
- * This overwrites the this.constants.
- *
- * @param constantsVariableName
- * @param value
- * @private
- */
- exports._overWriteGraphConstants = function (constantsVariableName, value) {
- var nameArray = constantsVariableName.split("_");
- if (nameArray.length == 1) {
- this.constants[nameArray[0]] = value;
- }
- else if (nameArray.length == 2) {
- this.constants[nameArray[0]][nameArray[1]] = value;
- }
- else if (nameArray.length == 3) {
- this.constants[nameArray[0]][nameArray[1]][nameArray[2]] = value;
- }
- };
-
-
- /**
- * this function is bound to the toggle smooth curves button. That is also why it is not in the prototype.
- */
- function graphToggleSmoothCurves () {
- this.constants.smoothCurves.enabled = !this.constants.smoothCurves.enabled;
- var graph_toggleSmooth = document.getElementById("graph_toggleSmooth");
- if (this.constants.smoothCurves.enabled == true) {graph_toggleSmooth.style.background = "#A4FF56";}
- else {graph_toggleSmooth.style.background = "#FF8532";}
-
- this._configureSmoothCurves(false);
- }
-
- /**
- * this function is used to scramble the nodes
- *
- */
- function graphRepositionNodes () {
- for (var nodeId in this.calculationNodes) {
- if (this.calculationNodes.hasOwnProperty(nodeId)) {
- this.calculationNodes[nodeId].vx = 0; this.calculationNodes[nodeId].vy = 0;
- this.calculationNodes[nodeId].fx = 0; this.calculationNodes[nodeId].fy = 0;
- }
- }
- if (this.constants.hierarchicalLayout.enabled == true) {
- this._setupHierarchicalLayout();
- }
- else {
- this.repositionNodes();
- }
- this.moving = true;
- this.start();
- }
-
- /**
- * this is used to generate an options file from the playing with physics system.
- */
- function graphGenerateOptions () {
- var options = "No options are required, default values used.";
- var optionsSpecific = [];
- var radioButton1 = document.getElementById("graph_physicsMethod1");
- var radioButton2 = document.getElementById("graph_physicsMethod2");
- if (radioButton1.checked == true) {
- if (this.constants.physics.barnesHut.gravitationalConstant != this.backupConstants.physics.barnesHut.gravitationalConstant) {optionsSpecific.push("gravitationalConstant: " + this.constants.physics.barnesHut.gravitationalConstant);}
- if (this.constants.physics.centralGravity != this.backupConstants.physics.barnesHut.centralGravity) {optionsSpecific.push("centralGravity: " + this.constants.physics.centralGravity);}
- if (this.constants.physics.springLength != this.backupConstants.physics.barnesHut.springLength) {optionsSpecific.push("springLength: " + this.constants.physics.springLength);}
- if (this.constants.physics.springConstant != this.backupConstants.physics.barnesHut.springConstant) {optionsSpecific.push("springConstant: " + this.constants.physics.springConstant);}
- if (this.constants.physics.damping != this.backupConstants.physics.barnesHut.damping) {optionsSpecific.push("damping: " + this.constants.physics.damping);}
- if (optionsSpecific.length != 0) {
- options = "var options = {";
- options += "physics: {barnesHut: {";
- for (var i = 0; i < optionsSpecific.length; i++) {
- options += optionsSpecific[i];
- if (i < optionsSpecific.length - 1) {
- options += ", "
- }
- }
- options += '}}'
- }
- if (this.constants.smoothCurves.enabled != this.backupConstants.smoothCurves.enabled) {
- if (optionsSpecific.length == 0) {options = "var options = {";}
- else {options += ", "}
- options += "smoothCurves: " + this.constants.smoothCurves.enabled;
- }
- if (options != "No options are required, default values used.") {
- options += '};'
- }
- }
- else if (radioButton2.checked == true) {
- options = "var options = {";
- options += "physics: {barnesHut: {enabled: false}";
- if (this.constants.physics.repulsion.nodeDistance != this.backupConstants.physics.repulsion.nodeDistance) {optionsSpecific.push("nodeDistance: " + this.constants.physics.repulsion.nodeDistance);}
- if (this.constants.physics.centralGravity != this.backupConstants.physics.repulsion.centralGravity) {optionsSpecific.push("centralGravity: " + this.constants.physics.centralGravity);}
- if (this.constants.physics.springLength != this.backupConstants.physics.repulsion.springLength) {optionsSpecific.push("springLength: " + this.constants.physics.springLength);}
- if (this.constants.physics.springConstant != this.backupConstants.physics.repulsion.springConstant) {optionsSpecific.push("springConstant: " + this.constants.physics.springConstant);}
- if (this.constants.physics.damping != this.backupConstants.physics.repulsion.damping) {optionsSpecific.push("damping: " + this.constants.physics.damping);}
- if (optionsSpecific.length != 0) {
- options += ", repulsion: {";
- for (var i = 0; i < optionsSpecific.length; i++) {
- options += optionsSpecific[i];
- if (i < optionsSpecific.length - 1) {
- options += ", "
- }
- }
- options += '}}'
- }
- if (optionsSpecific.length == 0) {options += "}"}
- if (this.constants.smoothCurves != this.backupConstants.smoothCurves) {
- options += ", smoothCurves: " + this.constants.smoothCurves;
- }
- options += '};'
- }
- else {
- options = "var options = {";
- if (this.constants.physics.hierarchicalRepulsion.nodeDistance != this.backupConstants.physics.hierarchicalRepulsion.nodeDistance) {optionsSpecific.push("nodeDistance: " + this.constants.physics.hierarchicalRepulsion.nodeDistance);}
- if (this.constants.physics.centralGravity != this.backupConstants.physics.hierarchicalRepulsion.centralGravity) {optionsSpecific.push("centralGravity: " + this.constants.physics.centralGravity);}
- if (this.constants.physics.springLength != this.backupConstants.physics.hierarchicalRepulsion.springLength) {optionsSpecific.push("springLength: " + this.constants.physics.springLength);}
- if (this.constants.physics.springConstant != this.backupConstants.physics.hierarchicalRepulsion.springConstant) {optionsSpecific.push("springConstant: " + this.constants.physics.springConstant);}
- if (this.constants.physics.damping != this.backupConstants.physics.hierarchicalRepulsion.damping) {optionsSpecific.push("damping: " + this.constants.physics.damping);}
- if (optionsSpecific.length != 0) {
- options += "physics: {hierarchicalRepulsion: {";
- for (var i = 0; i < optionsSpecific.length; i++) {
- options += optionsSpecific[i];
- if (i < optionsSpecific.length - 1) {
- options += ", ";
- }
- }
- options += '}},';
- }
- options += 'hierarchicalLayout: {';
- optionsSpecific = [];
- if (this.constants.hierarchicalLayout.direction != this.backupConstants.hierarchicalLayout.direction) {optionsSpecific.push("direction: " + this.constants.hierarchicalLayout.direction);}
- if (Math.abs(this.constants.hierarchicalLayout.levelSeparation) != this.backupConstants.hierarchicalLayout.levelSeparation) {optionsSpecific.push("levelSeparation: " + this.constants.hierarchicalLayout.levelSeparation);}
- if (this.constants.hierarchicalLayout.nodeSpacing != this.backupConstants.hierarchicalLayout.nodeSpacing) {optionsSpecific.push("nodeSpacing: " + this.constants.hierarchicalLayout.nodeSpacing);}
- if (optionsSpecific.length != 0) {
- for (var i = 0; i < optionsSpecific.length; i++) {
- options += optionsSpecific[i];
- if (i < optionsSpecific.length - 1) {
- options += ", "
- }
- }
- options += '}'
- }
- else {
- options += "enabled:true}";
- }
- options += '};'
- }
-
-
- this.optionsDiv.innerHTML = options;
- }
-
- /**
- * this is used to switch between barnesHut, repulsion and hierarchical.
- *
- */
- function switchConfigurations () {
- var ids = ["graph_BH_table", "graph_R_table", "graph_H_table"];
- var radioButton = document.querySelector('input[name="graph_physicsMethod"]:checked').value;
- var tableId = "graph_" + radioButton + "_table";
- var table = document.getElementById(tableId);
- table.style.display = "block";
- for (var i = 0; i < ids.length; i++) {
- if (ids[i] != tableId) {
- table = document.getElementById(ids[i]);
- table.style.display = "none";
- }
- }
- this._restoreNodes();
- if (radioButton == "R") {
- this.constants.hierarchicalLayout.enabled = false;
- this.constants.physics.hierarchicalRepulsion.enabled = false;
- this.constants.physics.barnesHut.enabled = false;
- }
- else if (radioButton == "H") {
- if (this.constants.hierarchicalLayout.enabled == false) {
- this.constants.hierarchicalLayout.enabled = true;
- this.constants.physics.hierarchicalRepulsion.enabled = true;
- this.constants.physics.barnesHut.enabled = false;
- this.constants.smoothCurves.enabled = false;
- this._setupHierarchicalLayout();
- }
- }
- else {
- this.constants.hierarchicalLayout.enabled = false;
- this.constants.physics.hierarchicalRepulsion.enabled = false;
- this.constants.physics.barnesHut.enabled = true;
- }
- this._loadSelectedForceSolver();
- var graph_toggleSmooth = document.getElementById("graph_toggleSmooth");
- if (this.constants.smoothCurves.enabled == true) {graph_toggleSmooth.style.background = "#A4FF56";}
- else {graph_toggleSmooth.style.background = "#FF8532";}
- this.moving = true;
- this.start();
- }
-
-
- /**
- * this generates the ranges depending on the iniital values.
- *
- * @param id
- * @param map
- * @param constantsVariableName
- */
- function showValueOfRange (id,map,constantsVariableName) {
- var valueId = id + "_value";
- var rangeValue = document.getElementById(id).value;
-
- if (map instanceof Array) {
- document.getElementById(valueId).value = map[parseInt(rangeValue)];
- this._overWriteGraphConstants(constantsVariableName,map[parseInt(rangeValue)]);
- }
- else {
- document.getElementById(valueId).value = parseInt(map) * parseFloat(rangeValue);
- this._overWriteGraphConstants(constantsVariableName, parseInt(map) * parseFloat(rangeValue));
- }
-
- if (constantsVariableName == "hierarchicalLayout_direction" ||
- constantsVariableName == "hierarchicalLayout_levelSeparation" ||
- constantsVariableName == "hierarchicalLayout_nodeSpacing") {
- this._setupHierarchicalLayout();
- }
- this.moving = true;
- this.start();
- }
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