vis.js is a dynamic, browser-based visualization library
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  1. /**
  2. * vis.js
  3. * https://github.com/almende/vis
  4. *
  5. * A dynamic, browser-based visualization library.
  6. *
  7. * @version 0.7.2-SNAPSHOT
  8. * @date 2014-03-27
  9. *
  10. * @license
  11. * Copyright (C) 2011-2014 Almende B.V, http://almende.com
  12. *
  13. * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  14. * use this file except in compliance with the License. You may obtain a copy
  15. * of the License at
  16. *
  17. * http://www.apache.org/licenses/LICENSE-2.0
  18. *
  19. * Unless required by applicable law or agreed to in writing, software
  20. * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  21. * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  22. * License for the specific language governing permissions and limitations under
  23. * the License.
  24. */
  25. !function(t){if("object"==typeof exports)module.exports=t();else if("function"==typeof define&&define.amd)define(t);else{var e;"undefined"!=typeof window?e=window:"undefined"!=typeof global?e=global:"undefined"!=typeof self&&(e=self),e.vis=t()}}(function(){var define,module,exports;return function t(e,i,s){function n(r,a){if(!i[r]){if(!e[r]){var h="function"==typeof require&&require;if(!a&&h)return h(r,!0);if(o)return o(r,!0);throw new Error("Cannot find module '"+r+"'")}var d=i[r]={exports:{}};e[r][0].call(d.exports,function(t){var i=e[r][1][t];return n(i?i:t)},d,d.exports,t,e,i,s)}return i[r].exports}for(var o="function"==typeof require&&require,r=0;r<s.length;r++)n(s[r]);return n}({1:[function(require,module,exports){function DataSet(t){if(this.id=util.randomUUID(),this.options=t||{},this.data={},this.fieldId=this.options.fieldId||"id",this.convert={},this.showInternalIds=this.options.showInternalIds||!1,this.options.convert)for(var e in this.options.convert)if(this.options.convert.hasOwnProperty(e)){var i=this.options.convert[e];this.convert[e]="Date"==i||"ISODate"==i||"ASPDate"==i?"Date":i}this.subscribers={},this.internalIds={}}function DataView(t,e){this.id=util.randomUUID(),this.data=null,this.ids={},this.options=e||{},this.fieldId="id",this.subscribers={};var i=this;this.listener=function(){i._onEvent.apply(i,arguments)},this.setData(t)}function Stack(t,e){this.itemset=t,this.options=e||{},this.defaultOptions={order:function(t,e){if(t instanceof ItemRange){if(e instanceof ItemRange){var i=t.data.end-t.data.start,s=e.data.end-e.data.start;return i-s||t.data.start-e.data.start}return-1}return e instanceof ItemRange?1:t.data.start-e.data.start},margin:{item:10}},this.ordered=[]}function Range(t){this.id=util.randomUUID(),this.start=null,this.end=null,this.options=t||{},this.setOptions(t)}function validateDirection(t){if("horizontal"!=t&&"vertical"!=t)throw new TypeError('Unknown direction "'+t+'". Choose "horizontal" or "vertical".')}function getPointer(t,e){return{x:t.pageX-vis.util.getAbsoluteLeft(e),y:t.pageY-vis.util.getAbsoluteTop(e)}}function Controller(){var t=this;this.id=util.randomUUID(),this.components={};var e=null;this.on("request-reflow",function(i){i?t.reflow():e||(e=setTimeout(function(){e=null,t.reflow()},0))});var i=null;this.on("request-repaint",function(e){e?t.repaint():i||(i=setTimeout(function(){i=null,t.repaint()},0))})}function Component(){this.id=null,this.parent=null,this.depends=null,this.controller=null,this.options=null,this.frame=null,this.top=0,this.left=0,this.width=0,this.height=0}function Panel(t,e,i){this.id=util.randomUUID(),this.parent=t,this.depends=e,this.options=i||{}}function RootPanel(t,e){this.id=util.randomUUID(),this.container=t;var i=this;this.hammer=null;var s=["touch","pinch","tap","doubletap","hold","dragstart","drag","dragend","mousewheel","DOMMouseScroll"];this.listeners={},s.forEach(function(t){i.listeners[t]=function(){var e=[t].concat(Array.prototype.slice.call(arguments,0));i.controller.emit.apply(i.controller,e)}}),this.options=e||{},this.defaultOptions={autoResize:!0}}function TimeAxis(t,e,i){this.id=util.randomUUID(),this.parent=t,this.depends=e,this.dom={majorLines:[],majorTexts:[],minorLines:[],minorTexts:[],redundant:{majorLines:[],majorTexts:[],minorLines:[],minorTexts:[]}},this.props={range:{start:0,end:0,minimumStep:0},lineTop:0},this.options=i||{},this.defaultOptions={orientation:"bottom",showMinorLabels:!0,showMajorLabels:!0},this.conversion=null,this.range=null}function CurrentTime(t,e,i){this.id=util.randomUUID(),this.parent=t,this.depends=e,this.options=i||{},this.defaultOptions={showCurrentTime:!1}}function CustomTime(t,e,i){this.id=util.randomUUID(),this.parent=t,this.depends=e,this.options=i||{},this.defaultOptions={showCustomTime:!1},this.customTime=new Date,this.eventParams={}}function ItemSet(t,e,i){this.id=util.randomUUID(),this.parent=t,this.depends=e,this.eventListeners={dragstart:this._onDragStart.bind(this),drag:this._onDrag.bind(this),dragend:this._onDragEnd.bind(this)},this.options=i||{},this.defaultOptions={type:"box",align:"center"
  26. c[p]=t.getValue(h,l)}i=n._addItem(c),s.push(i)}else{if(!(t instanceof Object))throw new Error("Unknown dataType");i=n._addItem(t),s.push(i)}return s.length&&this._trigger("add",{items:s},e),s},DataSet.prototype.update=function(t,e){var i=[],s=[],n=this,o=n.fieldId,r=function(t){var e=t[o];n.data[e]?(e=n._updateItem(t),s.push(e)):(e=n._addItem(t),i.push(e))};if(t instanceof Array)for(var a=0,h=t.length;h>a;a++)r(t[a]);else if(util.isDataTable(t))for(var d=this._getColumnNames(t),c=0,l=t.getNumberOfRows();l>c;c++){for(var u={},p=0,g=d.length;g>p;p++){var f=d[p];u[f]=t.getValue(c,p)}r(u)}else{if(!(t instanceof Object))throw new Error("Unknown dataType");r(t)}return i.length&&this._trigger("add",{items:i},e),s.length&&this._trigger("update",{items:s},e),i.concat(s)},DataSet.prototype.get=function(){var t,e,i,s,n=this,o=this.showInternalIds,r=util.getType(arguments[0]);"String"==r||"Number"==r?(t=arguments[0],i=arguments[1],s=arguments[2]):"Array"==r?(e=arguments[0],i=arguments[1],s=arguments[2]):(i=arguments[0],s=arguments[1]);var a;if(i&&i.type){if(a="DataTable"==i.type?"DataTable":"Array",s&&a!=util.getType(s))throw new Error('Type of parameter "data" ('+util.getType(s)+") does not correspond with specified options.type ("+i.type+")");if("DataTable"==a&&!util.isDataTable(s))throw new Error('Parameter "data" must be a DataTable when options.type is "DataTable"')}else a=s&&"DataTable"==util.getType(s)?"DataTable":"Array";void 0!=i&&void 0!=i.showInternalIds&&(this.showInternalIds=i.showInternalIds);var h,d,c,l,u=i&&i.convert||this.options.convert,p=i&&i.filter,g=[];if(void 0!=t)h=n._getItem(t,u),p&&!p(h)&&(h=null);else if(void 0!=e)for(c=0,l=e.length;l>c;c++)h=n._getItem(e[c],u),(!p||p(h))&&g.push(h);else for(d in this.data)this.data.hasOwnProperty(d)&&(h=n._getItem(d,u),(!p||p(h))&&g.push(h));if(this.showInternalIds=o,i&&i.order&&void 0==t&&this._sort(g,i.order),i&&i.fields){var f=i.fields;if(void 0!=t)h=this._filterFields(h,f);else for(c=0,l=g.length;l>c;c++)g[c]=this._filterFields(g[c],f)}if("DataTable"==a){var m=this._getColumnNames(s);if(void 0!=t)n._appendRow(s,m,h);else for(c=0,l=g.length;l>c;c++)n._appendRow(s,m,g[c]);return s}if(void 0!=t)return h;if(s){for(c=0,l=g.length;l>c;c++)s.push(g[c]);return s}return g},DataSet.prototype.getIds=function(t){var e,i,s,n,o,r=this.data,a=t&&t.filter,h=t&&t.order,d=t&&t.convert||this.options.convert,c=[];if(a)if(h){o=[];for(s in r)r.hasOwnProperty(s)&&(n=this._getItem(s,d),a(n)&&o.push(n));for(this._sort(o,h),e=0,i=o.length;i>e;e++)c[e]=o[e][this.fieldId]}else for(s in r)r.hasOwnProperty(s)&&(n=this._getItem(s,d),a(n)&&c.push(n[this.fieldId]));else if(h){o=[];for(s in r)r.hasOwnProperty(s)&&o.push(r[s]);for(this._sort(o,h),e=0,i=o.length;i>e;e++)c[e]=o[e][this.fieldId]}else for(s in r)r.hasOwnProperty(s)&&(n=r[s],c.push(n[this.fieldId]));return c},DataSet.prototype.forEach=function(t,e){var i,s,n=e&&e.filter,o=e&&e.convert||this.options.convert,r=this.data;if(e&&e.order)for(var a=this.get(e),h=0,d=a.length;d>h;h++)i=a[h],s=i[this.fieldId],t(i,s);else for(s in r)r.hasOwnProperty(s)&&(i=this._getItem(s,o),(!n||n(i))&&t(i,s))},DataSet.prototype.map=function(t,e){var i,s=e&&e.filter,n=e&&e.convert||this.options.convert,o=[],r=this.data;for(var a in r)r.hasOwnProperty(a)&&(i=this._getItem(a,n),(!s||s(i))&&o.push(t(i,a)));return e&&e.order&&this._sort(o,e.order),o},DataSet.prototype._filterFields=function(t,e){var i={};for(var s in t)t.hasOwnProperty(s)&&-1!=e.indexOf(s)&&(i[s]=t[s]);return i},DataSet.prototype._sort=function(t,e){if(util.isString(e)){var i=e;t.sort(function(t,e){var s=t[i],n=e[i];return s>n?1:n>s?-1:0})}else{if("function"!=typeof e)throw new TypeError("Order must be a function or a string");t.sort(e)}},DataSet.prototype.remove=function(t,e){var i,s,n,o=[];if(t instanceof Array)for(i=0,s=t.length;s>i;i++)n=this._remove(t[i]),null!=n&&o.push(n);else n=this._remove(t),null!=n&&o.push(n);return o.length&&this._trigger("remove",{items:o},e),o},DataSet.prototype._remove=function(t){if(util.isNumber(t)||util.isString(t)){if(this.data[t])return delete this.data[t],delete thi
  27. }this.dom.majorTexts.push(i),i.childNodes[0].nodeValue=e,i.style.top=this.props.majorLabelTop+"px",i.style.left=t+"px"},TimeAxis.prototype._repaintMinorLine=function(t){var e=this.dom.redundant.minorLines.shift();e||(e=document.createElement("div"),e.className="grid vertical minor",this.frame.appendChild(e)),this.dom.minorLines.push(e);var i=this.props;e.style.top=i.minorLineTop+"px",e.style.height=i.minorLineHeight+"px",e.style.left=t-i.minorLineWidth/2+"px"},TimeAxis.prototype._repaintMajorLine=function(t){var e=this.dom.redundant.majorLines.shift();e||(e=document.createElement("DIV"),e.className="grid vertical major",this.frame.appendChild(e)),this.dom.majorLines.push(e);var i=this.props;e.style.top=i.majorLineTop+"px",e.style.left=t-i.majorLineWidth/2+"px",e.style.height=i.majorLineHeight+"px"},TimeAxis.prototype._repaintLine=function(){{var t=this.dom.line,e=this.frame;this.options}this.getOption("showMinorLabels")||this.getOption("showMajorLabels")?(t?(e.removeChild(t),e.appendChild(t)):(t=document.createElement("div"),t.className="grid horizontal major",e.appendChild(t),this.dom.line=t),t.style.top=this.props.lineTop+"px"):t&&t.parentElement&&(e.removeChild(t.line),delete this.dom.line)},TimeAxis.prototype._repaintMeasureChars=function(){var t,e=this.dom;if(!e.measureCharMinor){t=document.createTextNode("0");var i=document.createElement("DIV");i.className="text minor measure",i.appendChild(t),this.frame.appendChild(i),e.measureCharMinor=i}if(!e.measureCharMajor){t=document.createTextNode("0");var s=document.createElement("DIV");s.className="text major measure",s.appendChild(t),this.frame.appendChild(s),e.measureCharMajor=s}},TimeAxis.prototype.reflow=function(){var t=0,e=util.updateProperty,i=this.frame,s=this.range;if(!s)throw new Error("Cannot repaint time axis: no range configured");if(i){t+=e(this,"top",i.offsetTop),t+=e(this,"left",i.offsetLeft);var n=this.props,o=this.getOption("showMinorLabels"),r=this.getOption("showMajorLabels"),a=this.dom.measureCharMinor,h=this.dom.measureCharMajor;a&&(n.minorCharHeight=a.clientHeight,n.minorCharWidth=a.clientWidth),h&&(n.majorCharHeight=h.clientHeight,n.majorCharWidth=h.clientWidth);var d=i.parentNode?i.parentNode.offsetHeight:0;switch(d!=n.parentHeight&&(n.parentHeight=d,t+=1),this.getOption("orientation")){case"bottom":n.minorLabelHeight=o?n.minorCharHeight:0,n.majorLabelHeight=r?n.majorCharHeight:0,n.minorLabelTop=0,n.majorLabelTop=n.minorLabelTop+n.minorLabelHeight,n.minorLineTop=-this.top,n.minorLineHeight=Math.max(this.top+n.majorLabelHeight,0),n.minorLineWidth=1,n.majorLineTop=-this.top,n.majorLineHeight=Math.max(this.top+n.minorLabelHeight+n.majorLabelHeight,0),n.majorLineWidth=1,n.lineTop=0;break;case"top":n.minorLabelHeight=o?n.minorCharHeight:0,n.majorLabelHeight=r?n.majorCharHeight:0,n.majorLabelTop=0,n.minorLabelTop=n.majorLabelTop+n.majorLabelHeight,n.minorLineTop=n.minorLabelTop,n.minorLineHeight=Math.max(d-n.majorLabelHeight-this.top),n.minorLineWidth=1,n.majorLineTop=0,n.majorLineHeight=Math.max(d-this.top),n.majorLineWidth=1,n.lineTop=n.majorLabelHeight+n.minorLabelHeight;break;default:throw new Error('Unkown orientation "'+this.getOption("orientation")+'"')}var c=n.minorLabelHeight+n.majorLabelHeight;t+=e(this,"width",i.offsetWidth),t+=e(this,"height",c),this._updateConversion();var l=util.convert(s.start,"Number"),u=util.convert(s.end,"Number"),p=this.toTime(5*(n.minorCharWidth||10)).valueOf()-this.toTime(0).valueOf();this.step=new TimeStep(new Date(l),new Date(u),p),t+=e(n.range,"start",l),t+=e(n.range,"end",u),t+=e(n.range,"minimumStep",p.valueOf())}return t>0},TimeAxis.prototype._updateConversion=function(){var t=this.range;if(!t)throw new Error("No range configured");this.conversion=t.conversion?t.conversion(this.width):Range.conversion(t.start,t.end,this.width)},TimeAxis.prototype.snap=function(t){return this.step.snap(t)},CurrentTime.prototype=new Component,CurrentTime.prototype.setOptions=Component.prototype.setOptions,CurrentTime.prototype.getContainer=function(){return this.frame},CurrentTime.prototype.repaint=function(){var t=this.frame,e
  28. if(a){var h,d=o(s.maxHeight),c=null!=r(s.height);if(c)h=a.offsetHeight;else{h=0;for(t in this.groups)this.groups.hasOwnProperty(t)&&(e=this.groups[t],h+=e.height)}null!=d&&(h=Math.min(h,d)),i+=n(this,"height",h),i+=n(this,"top",a.offsetTop),i+=n(this,"left",a.offsetLeft),i+=n(this,"width",a.offsetWidth)}var l=0;for(t in this.groups)if(this.groups.hasOwnProperty(t)){e=this.groups[t];var u=e.props&&e.props.label&&e.props.label.width||0;l=Math.max(l,u)}return i+=n(this.props.labels,"width",l),i>0},GroupSet.prototype.hide=function(){return this.dom.frame&&this.dom.frame.parentNode?(this.dom.frame.parentNode.removeChild(this.dom.frame),!0):!1},GroupSet.prototype.show=function(){return this.dom.frame&&this.dom.frame.parentNode?!1:this.repaint()},GroupSet.prototype._onUpdate=function(t){this._toQueue(t,"update")},GroupSet.prototype._onAdd=function(t){this._toQueue(t,"add")},GroupSet.prototype._onRemove=function(t){this._toQueue(t,"remove")},GroupSet.prototype._toQueue=function(t,e){var i=this.queue;t.forEach(function(t){i[t]=e}),this.controller&&this.requestRepaint()},GroupSet.groupFromTarget=function(t){for(var e,i=t.target;i;){if(i.hasOwnProperty("timeline-groupset")){e=i["timeline-groupset"];break}i=i.parentNode}if(e)for(var s in e.groups)if(e.groups.hasOwnProperty(s)){var n=e.groups[s];if(n.itemset&&ItemSet.itemSetFromTarget(t)==n.itemset)return n}return null},Timeline.prototype.on=function(t,e){this.controller.on(t,e)},Timeline.prototype.off=function(t,e){this.controller.off(t,e)},Timeline.prototype.setOptions=function(t){util.extend(this.options,t),this.range.setRange(t.start,t.end),("editable"in t||"selectable"in t)&&this.setSelection(this.options.selectable?this.getSelection():[]);var e=function(t){if(!(this.options[t]instanceof Function)||2!=this.options[t].length)throw new Error("option "+t+" must be a function "+t+"(item, callback)")}.bind(this);["onAdd","onUpdate","onRemove","onMove"].forEach(e),this.controller.reflow(),this.controller.repaint()},Timeline.prototype.setCustomTime=function(t){if(!this.customtime)throw new Error("Cannot get custom time: Custom time bar is not enabled");this.customtime.setCustomTime(t)},Timeline.prototype.getCustomTime=function(){if(!this.customtime)throw new Error("Cannot get custom time: Custom time bar is not enabled");return this.customtime.getCustomTime()},Timeline.prototype.setItems=function(t){var e,i=null==this.itemsData;if(t?t instanceof DataSet&&(e=t):e=null,t instanceof DataSet||(e=new DataSet({convert:{start:"Date",end:"Date"}}),e.add(t)),this.itemsData=e,this.content.setItems(e),i&&(void 0==this.options.start||void 0==this.options.end)){var s=this.getItemRange(),n=s.min,o=s.max;if(null!=n&&null!=o){var r=o.valueOf()-n.valueOf();0>=r&&(r=864e5),n=new Date(n.valueOf()-.05*r),o=new Date(o.valueOf()+.05*r)}void 0!=this.options.start&&(n=util.convert(this.options.start,"Date")),void 0!=this.options.end&&(o=util.convert(this.options.end,"Date")),(null!=n||null!=o)&&this.range.setRange(n,o)}},Timeline.prototype.setGroups=function(t){var e=this;this.groupsData=t;var i=this.groupsData?GroupSet:ItemSet;if(!(this.content instanceof i)){this.content&&(this.content.hide(),this.content.setItems&&this.content.setItems(),this.content.setGroups&&this.content.setGroups(),this.controller.remove(this.content));var s=Object.create(this.options);util.extend(s,{top:function(){return"top"==e.options.orientation?e.timeaxis.height:e.itemPanel.height-e.timeaxis.height-e.content.height},left:null,width:"100%",height:function(){return e.options.height?e.itemPanel.height-e.timeaxis.height:null},maxHeight:function(){if(e.options.maxHeight){if(!util.isNumber(e.options.maxHeight))throw new TypeError("Number expected for property maxHeight");return e.options.maxHeight-e.timeaxis.height}return null},labelContainer:function(){return e.labelPanel.getContainer()}}),this.content=new i(this.itemPanel,[this.timeaxis],s),this.content.setRange&&this.content.setRange(this.range),this.content.setItems&&this.content.setItems(this.itemsData),this.content.setGroups&&this.content.setGroups(this.groupsData),this.controlle
  29. },Edge.prototype.getTitle=function(){return this.title},Edge.prototype.getValue=function(){return this.value},Edge.prototype.setValueRange=function(t,e){if(!this.widthFixed&&void 0!==this.value){var i=(this.widthMax-this.widthMin)/(e-t);this.width=(this.value-t)*i+this.widthMin}},Edge.prototype.draw=function(){throw"Method draw not initialized in edge"},Edge.prototype.isOverlappingWith=function(t){if(1==this.connected){var e=10,i=this.from.x,s=this.from.y,n=this.to.x,o=this.to.y,r=t.left,a=t.top,h=this._getDistanceToEdge(i,s,n,o,r,a);return e>h}return!1},Edge.prototype._drawLine=function(t){if(t.strokeStyle=1==this.selected?this.color.highlight:this.color.color,t.lineWidth=this._getLineWidth(),this.from!=this.to){this._line(t);var e;if(this.label){if(1==this.smooth){var i=.5*(.5*(this.from.x+this.via.x)+.5*(this.to.x+this.via.x)),s=.5*(.5*(this.from.y+this.via.y)+.5*(this.to.y+this.via.y));e={x:i,y:s}}else e=this._pointOnLine(.5);this._label(t,this.label,e.x,e.y)}}else{var n,o,r=this.length/4,a=this.from;a.width||a.resize(t),a.width>a.height?(n=a.x+a.width/2,o=a.y-r):(n=a.x+r,o=a.y-a.height/2),this._circle(t,n,o,r),e=this._pointOnCircle(n,o,r,.5),this._label(t,this.label,e.x,e.y)}},Edge.prototype._getLineWidth=function(){return 1==this.selected?Math.min(2*this.width,this.widthMax)*this.graphScaleInv:this.width*this.graphScaleInv},Edge.prototype._line=function(t){t.beginPath(),t.moveTo(this.from.x,this.from.y),1==this.smooth?t.quadraticCurveTo(this.via.x,this.via.y,this.to.x,this.to.y):t.lineTo(this.to.x,this.to.y),t.stroke()},Edge.prototype._circle=function(t,e,i,s){t.beginPath(),t.arc(e,i,s,0,2*Math.PI,!1),t.stroke()},Edge.prototype._label=function(t,e,i,s){if(e){t.font=(this.from.selected||this.to.selected?"bold ":"")+this.fontSize+"px "+this.fontFace,t.fillStyle="white";var n=t.measureText(e).width,o=this.fontSize,r=i-n/2,a=s-o/2;t.fillRect(r,a,n,o),t.fillStyle=this.fontColor||"black",t.textAlign="left",t.textBaseline="top",t.fillText(e,r,a)}},Edge.prototype._drawDashLine=function(t){if(t.strokeStyle=1==this.selected?this.color.highlight:this.color.color,t.lineWidth=this._getLineWidth(),void 0!==t.mozDash||void 0!==t.setLineDash){t.beginPath(),t.moveTo(this.from.x,this.from.y);var e=[0];e=void 0!==this.dash.length&&void 0!==this.dash.gap?[this.dash.length,this.dash.gap]:[5,5],"undefined"!=typeof t.setLineDash?(t.setLineDash(e),t.lineDashOffset=0):(t.mozDash=e,t.mozDashOffset=0),1==this.smooth?t.quadraticCurveTo(this.via.x,this.via.y,this.to.x,this.to.y):t.lineTo(this.to.x,this.to.y),t.stroke(),"undefined"!=typeof t.setLineDash?(t.setLineDash([0]),t.lineDashOffset=0):(t.mozDash=[0],t.mozDashOffset=0)}else t.beginPath(),t.lineCap="round",void 0!==this.dash.altLength?t.dashedLine(this.from.x,this.from.y,this.to.x,this.to.y,[this.dash.length,this.dash.gap,this.dash.altLength,this.dash.gap]):void 0!==this.dash.length&&void 0!==this.dash.gap?t.dashedLine(this.from.x,this.from.y,this.to.x,this.to.y,[this.dash.length,this.dash.gap]):(t.moveTo(this.from.x,this.from.y),t.lineTo(this.to.x,this.to.y)),t.stroke();if(this.label){var i;if(1==this.smooth){var s=.5*(.5*(this.from.x+this.via.x)+.5*(this.to.x+this.via.x)),n=.5*(.5*(this.from.y+this.via.y)+.5*(this.to.y+this.via.y));i={x:s,y:n}}else i=this._pointOnLine(.5);this._label(t,this.label,i.x,i.y)}},Edge.prototype._pointOnLine=function(t){return{x:(1-t)*this.from.x+t*this.to.x,y:(1-t)*this.from.y+t*this.to.y}},Edge.prototype._pointOnCircle=function(t,e,i,s){var n=2*(s-3/8)*Math.PI;return{x:t+i*Math.cos(n),y:e-i*Math.sin(n)}},Edge.prototype._drawArrowCenter=function(t){var e;if(1==this.selected?(t.strokeStyle=this.color.highlight,t.fillStyle=this.color.highlight):(t.strokeStyle=this.color.color,t.fillStyle=this.color.color),t.lineWidth=this._getLineWidth(),this.from!=this.to){this._line(t);var i=Math.atan2(this.to.y-this.from.y,this.to.x-this.from.x),s=10+5*this.width;if(1==this.smooth){var n=.5*(.5*(this.from.x+this.via.x)+.5*(this.to.x+this.via.x)),o=.5*(.5*(this.from.y+this.via.y)+.5*(this.to.y+this.via.y));e={x:n,y:o}}else e=this._pointOnLine(.5);t.arrow(e.x,e.y,i,s),t.fill(
  30. for(var n in i)i.hasOwnProperty(n)&&(i[n].nodeSpacing=(s+1)*this.constants.hierarchicalLayout.nodeSpacing,i[n].nodeSpacing/=i[n].amount+1,i[n].minPos=i[n].nodeSpacing-.5*(i[n].amount+1)*i[n].nodeSpacing);return i},_determineLevels:function(t){var e,i;for(e in this.nodes)this.nodes.hasOwnProperty(e)&&(i=this.nodes[e],i.edges.length==t&&(i.level=0));for(e in this.nodes)this.nodes.hasOwnProperty(e)&&(i=this.nodes[e],0==i.level&&this._setLevel(1,i.edges,i.id))},_changeConstants:function(){this.constants.clustering.enabled=!1,this.constants.physics.barnesHut.enabled=!1,this.constants.physics.hierarchicalRepulsion.enabled=!0,this._loadSelectedForceSolver(),this.constants.smoothCurves=!1,this._configureSmoothCurves()},_placeBranchNodes:function(t,e,i,s){for(var n=0;n<t.length;n++){var o=null;o=t[n].toId==e?t[n].from:t[n].to;var r=!1;"UD"==this.constants.hierarchicalLayout.direction||"DU"==this.constants.hierarchicalLayout.direction?o.xFixed&&o.level>s&&(o.xFixed=!1,o.x=i[o.level].minPos,r=!0):o.yFixed&&o.level>s&&(o.yFixed=!1,o.y=i[o.level].minPos,r=!0),1==r&&(i[o.level].minPos+=i[o.level].nodeSpacing,o.edges.length>1&&this._placeBranchNodes(o.edges,o.id,i,o.level))}},_setLevel:function(t,e,i){for(var s=0;s<e.length;s++){var n=null;n=e[s].toId==i?e[s].from:e[s].to,(-1==n.level||n.level>t)&&(n.level=t,e.length>1&&this._setLevel(t+1,n.edges,n.id))}},_restoreNodes:function(){for(nodeId in this.nodes)this.nodes.hasOwnProperty(nodeId)&&(this.nodes[nodeId].xFixed=!1,this.nodes[nodeId].yFixed=!1)}},manipulationMixin={_clearManipulatorBar:function(){for(;this.manipulationDiv.hasChildNodes();)this.manipulationDiv.removeChild(this.manipulationDiv.firstChild)},_restoreOverloadedFunctions:function(){for(var t in this.cachedFunctions)this.cachedFunctions.hasOwnProperty(t)&&(this[t]=this.cachedFunctions[t])},_toggleEditMode:function(){this.editMode=!this.editMode;var t=document.getElementById("graph-manipulationDiv"),e=document.getElementById("graph-manipulation-closeDiv"),i=document.getElementById("graph-manipulation-editMode");1==this.editMode?(t.style.display="block",e.style.display="block",i.style.display="none",e.onclick=this._toggleEditMode.bind(this)):(t.style.display="none",e.style.display="none",i.style.display="block",e.onclick=null),this._createManipulatorBar()},_createManipulatorBar:function(){if(this.boundFunction&&this.off("select",this.boundFunction),this._restoreOverloadedFunctions(),this.freezeSimulation=!1,this.blockConnectingEdgeSelection=!1,this.forceAppendSelection=!1,1==this.editMode){for(;this.manipulationDiv.hasChildNodes();)this.manipulationDiv.removeChild(this.manipulationDiv.firstChild);this.manipulationDiv.innerHTML="<span class='graph-manipulationUI add' id='graph-manipulate-addNode'><span class='graph-manipulationLabel'>Add Node</span></span><div class='graph-seperatorLine'></div><span class='graph-manipulationUI connect' id='graph-manipulate-connectNode'><span class='graph-manipulationLabel'>Add Link</span></span>",1==this._getSelectedNodeCount()&&this.triggerFunctions.edit&&(this.manipulationDiv.innerHTML+="<div class='graph-seperatorLine'></div><span class='graph-manipulationUI edit' id='graph-manipulate-editNode'><span class='graph-manipulationLabel'>Edit Node</span></span>"),0==this._selectionIsEmpty()&&(this.manipulationDiv.innerHTML+="<div class='graph-seperatorLine'></div><span class='graph-manipulationUI delete' id='graph-manipulate-delete'><span class='graph-manipulationLabel'>Delete selected</span></span>");var t=document.getElementById("graph-manipulate-addNode");t.onclick=this._createAddNodeToolbar.bind(this);var e=document.getElementById("graph-manipulate-connectNode");if(e.onclick=this._createAddEdgeToolbar.bind(this),1==this._getSelectedNodeCount()&&this.triggerFunctions.edit){var i=document.getElementById("graph-manipulate-editNode");i.onclick=this._editNode.bind(this)}if(0==this._selectionIsEmpty()){var s=document.getElementById("graph-manipulate-delete");s.onclick=this._deleteSelected.bind(this)}var n=document.getElementById("graph-manipulation-closeDiv");n.onclick=this._toggleEditMode.bind(t
  31. return t},setSelection:function(t){var e,i,s;if(!t||void 0==t.length)throw"Selection must be an array with ids";for(this._unselectAll(!0),e=0,i=t.length;i>e;e++){s=t[e];var n=this.nodes[s];if(!n)throw new RangeError('Node with id "'+s+'" not found');this._selectObject(n,!0,!0)}this.redraw()},_updateSelection:function(){for(var t in this.selectionObj.nodes)this.selectionObj.nodes.hasOwnProperty(t)&&(this.nodes.hasOwnProperty(t)||delete this.selectionObj.nodes[t]);for(var e in this.selectionObj.edges)this.selectionObj.edges.hasOwnProperty(e)&&(this.edges.hasOwnProperty(e)||delete this.selectionObj.edges[e])}},NavigationMixin={_cleanNavigation:function(){var t=document.getElementById("graph-navigation_wrapper");null!=t&&this.containerElement.removeChild(t),document.onmouseup=null},_loadNavigationElements:function(){this._cleanNavigation(),this.navigationDivs={};var t=["up","down","left","right","zoomIn","zoomOut","zoomExtends"],e=["_moveUp","_moveDown","_moveLeft","_moveRight","_zoomIn","_zoomOut","zoomExtent"];this.navigationDivs.wrapper=document.createElement("div"),this.navigationDivs.wrapper.id="graph-navigation_wrapper",this.navigationDivs.wrapper.style.position="absolute",this.navigationDivs.wrapper.style.width=this.frame.canvas.clientWidth+"px",this.navigationDivs.wrapper.style.height=this.frame.canvas.clientHeight+"px",this.containerElement.insertBefore(this.navigationDivs.wrapper,this.frame);for(var i=0;i<t.length;i++)this.navigationDivs[t[i]]=document.createElement("div"),this.navigationDivs[t[i]].id="graph-navigation_"+t[i],this.navigationDivs[t[i]].className="graph-navigation "+t[i],this.navigationDivs.wrapper.appendChild(this.navigationDivs[t[i]]),this.navigationDivs[t[i]].onmousedown=this[e[i]].bind(this);document.onmouseup=this._stopMovement.bind(this)},_stopMovement:function(){this._xStopMoving(),this._yStopMoving(),this._stopZoom()},_preventDefault:function(t){void 0!==t&&(t.preventDefault?t.preventDefault():t.returnValue=!1)},_moveUp:function(t){this.yIncrement=this.constants.keyboard.speed.y,this.start(),this._preventDefault(t),this.navigationDivs&&(this.navigationDivs.up.className+=" active")},_moveDown:function(t){this.yIncrement=-this.constants.keyboard.speed.y,this.start(),this._preventDefault(t),this.navigationDivs&&(this.navigationDivs.down.className+=" active")},_moveLeft:function(t){this.xIncrement=this.constants.keyboard.speed.x,this.start(),this._preventDefault(t),this.navigationDivs&&(this.navigationDivs.left.className+=" active")},_moveRight:function(t){this.xIncrement=-this.constants.keyboard.speed.y,this.start(),this._preventDefault(t),this.navigationDivs&&(this.navigationDivs.right.className+=" active")},_zoomIn:function(t){this.zoomIncrement=this.constants.keyboard.speed.zoom,this.start(),this._preventDefault(t),this.navigationDivs&&(this.navigationDivs.zoomIn.className+=" active")},_zoomOut:function(){this.zoomIncrement=-this.constants.keyboard.speed.zoom,this.start(),this._preventDefault(event),this.navigationDivs&&(this.navigationDivs.zoomOut.className+=" active")},_stopZoom:function(){this.zoomIncrement=0,this.navigationDivs&&(this.navigationDivs.zoomIn.className=this.navigationDivs.zoomIn.className.replace(" active",""),this.navigationDivs.zoomOut.className=this.navigationDivs.zoomOut.className.replace(" active",""))},_yStopMoving:function(){this.yIncrement=0,this.navigationDivs&&(this.navigationDivs.up.className=this.navigationDivs.up.className.replace(" active",""),this.navigationDivs.down.className=this.navigationDivs.down.className.replace(" active",""))},_xStopMoving:function(){this.xIncrement=0,this.navigationDivs&&(this.navigationDivs.left.className=this.navigationDivs.left.className.replace(" active",""),this.navigationDivs.right.className=this.navigationDivs.right.className.replace(" active",""))}},graphMixinLoaders={_loadMixin:function(t){for(var e in t)t.hasOwnProperty(e)&&(Graph.prototype[e]=t[e])},_clearMixin:function(t){for(var e in t)t.hasOwnProperty(e)&&(Graph.prototype[e]=void 0)},_loadPhysicsSystem:function(){this._loadMixin(physicsMixin),this._loadSelectedForceSolv
  32. return s(),this.element=t,this.enabled=!0,this.options=n.utils.extend(n.utils.extend({},n.defaults),e||{}),this.options.stop_browser_behavior&&n.utils.stopDefaultBrowserBehavior(this.element,this.options.stop_browser_behavior),n.event.onTouch(t,n.EVENT_START,function(t){i.enabled&&n.detection.startDetect(i,t)}),this},n.Instance.prototype={on:function(t,e){for(var i=t.split(" "),s=0;s<i.length;s++)this.element.addEventListener(i[s],e,!1);return this},off:function(t,e){for(var i=t.split(" "),s=0;s<i.length;s++)this.element.removeEventListener(i[s],e,!1);return this},trigger:function(t,e){var i=n.DOCUMENT.createEvent("Event");i.initEvent(t,!0,!0),i.gesture=e;var s=this.element;return n.utils.hasParent(e.target,s)&&(s=e.target),s.dispatchEvent(i),this},enable:function(t){return this.enabled=t,this}};var o=null,r=!1,a=!1;n.event={bindDom:function(t,e,i){for(var s=e.split(" "),n=0;n<s.length;n++)t.addEventListener(s[n],i,!1)},onTouch:function(t,e,i){var s=this;this.bindDom(t,n.EVENT_TYPES[e],function(h){var d=h.type.toLowerCase();if(!d.match(/mouse/)||!a){(d.match(/touch/)||d.match(/pointerdown/)||d.match(/mouse/)&&1===h.which)&&(r=!0),d.match(/touch|pointer/)&&(a=!0);var c=0;r&&(n.HAS_POINTEREVENTS&&e!=n.EVENT_END?c=n.PointerEvent.updatePointer(e,h):d.match(/touch/)?c=h.touches.length:a||(c=d.match(/up/)?0:1),c>0&&e==n.EVENT_END?e=n.EVENT_MOVE:c||(e=n.EVENT_END),c||null===o?o=h:h=o,i.call(n.detection,s.collectEventData(t,e,h)),n.HAS_POINTEREVENTS&&e==n.EVENT_END&&(c=n.PointerEvent.updatePointer(e,h))),c||(o=null,r=!1,a=!1,n.PointerEvent.reset())}})},determineEventTypes:function(){var t;t=n.HAS_POINTEREVENTS?n.PointerEvent.getEvents():n.NO_MOUSEEVENTS?["touchstart","touchmove","touchend touchcancel"]:["touchstart mousedown","touchmove mousemove","touchend touchcancel mouseup"],n.EVENT_TYPES[n.EVENT_START]=t[0],n.EVENT_TYPES[n.EVENT_MOVE]=t[1],n.EVENT_TYPES[n.EVENT_END]=t[2]},getTouchList:function(t){return n.HAS_POINTEREVENTS?n.PointerEvent.getTouchList():t.touches?t.touches:[{identifier:1,pageX:t.pageX,pageY:t.pageY,target:t.target}]},collectEventData:function(t,e,i){var s=this.getTouchList(i,e),o=n.POINTER_TOUCH;return(i.type.match(/mouse/)||n.PointerEvent.matchType(n.POINTER_MOUSE,i))&&(o=n.POINTER_MOUSE),{center:n.utils.getCenter(s),timeStamp:(new Date).getTime(),target:i.target,touches:s,eventType:e,pointerType:o,srcEvent:i,preventDefault:function(){this.srcEvent.preventManipulation&&this.srcEvent.preventManipulation(),this.srcEvent.preventDefault&&this.srcEvent.preventDefault()},stopPropagation:function(){this.srcEvent.stopPropagation()},stopDetect:function(){return n.detection.stopDetect()}}}},n.PointerEvent={pointers:{},getTouchList:function(){var t=this,e=[];return Object.keys(t.pointers).sort().forEach(function(i){e.push(t.pointers[i])}),e},updatePointer:function(t,e){return t==n.EVENT_END?this.pointers={}:(e.identifier=e.pointerId,this.pointers[e.pointerId]=e),Object.keys(this.pointers).length},matchType:function(t,e){if(!e.pointerType)return!1;var i={};return i[n.POINTER_MOUSE]=e.pointerType==e.MSPOINTER_TYPE_MOUSE||e.pointerType==n.POINTER_MOUSE,i[n.POINTER_TOUCH]=e.pointerType==e.MSPOINTER_TYPE_TOUCH||e.pointerType==n.POINTER_TOUCH,i[n.POINTER_PEN]=e.pointerType==e.MSPOINTER_TYPE_PEN||e.pointerType==n.POINTER_PEN,i[t]},getEvents:function(){return["pointerdown MSPointerDown","pointermove MSPointerMove","pointerup pointercancel MSPointerUp MSPointerCancel"]},reset:function(){this.pointers={}}},n.utils={extend:function(t,e,s){for(var n in e)t[n]!==i&&s||(t[n]=e[n]);return t},hasParent:function(t,e){for(;t;){if(t==e)return!0;t=t.parentNode}return!1},getCenter:function(t){for(var e=[],i=[],s=0,n=t.length;n>s;s++)e.push(t[s].pageX),i.push(t[s].pageY);return{pageX:(Math.min.apply(Math,e)+Math.max.apply(Math,e))/2,pageY:(Math.min.apply(Math,i)+Math.max.apply(Math,i))/2}},getVelocity:function(t,e,i){return{x:Math.abs(e/t)||0,y:Math.abs(i/t)||0}},getAngle:function(t,e){var i=e.pageY-t.pageY,s=e.pageX-t.pageX;return 180*Math.atan2(i,s)/Math.PI},getDirection:function(t,e){var i=Math.abs(t.pageX-e.pageX),s=Math.abs(t.pageY-e
  33. },month:function(t){var e,i=this._isUTC?"UTC":"";return null!=t?"string"==typeof t&&(t=this.lang().monthsParse(t),"number"!=typeof t)?this:(e=this.date(),this.date(1),this._d["set"+i+"Month"](t),this.date(Math.min(e,this.daysInMonth())),oe.updateOffset(this),this):this._d["get"+i+"Month"]()},startOf:function(t){switch(t=v(t)){case"year":this.month(0);case"month":this.date(1);case"week":case"isoWeek":case"day":this.hours(0);case"hour":this.minutes(0);case"minute":this.seconds(0);case"second":this.milliseconds(0)}return"week"===t?this.weekday(0):"isoWeek"===t&&this.isoWeekday(1),this},endOf:function(t){return t=v(t),this.startOf(t).add("isoWeek"===t?"week":t,1).subtract("ms",1)},isAfter:function(t,e){return e="undefined"!=typeof e?e:"millisecond",+this.clone().startOf(e)>+oe(t).startOf(e)},isBefore:function(t,e){return e="undefined"!=typeof e?e:"millisecond",+this.clone().startOf(e)<+oe(t).startOf(e)},isSame:function(t,e){return e=e||"ms",+this.clone().startOf(e)===+C(t,this).startOf(e)},min:function(t){return t=oe.apply(null,arguments),this>t?this:t},max:function(t){return t=oe.apply(null,arguments),t>this?this:t},zone:function(t){var e=this._offset||0;return null==t?this._isUTC?e:this._d.getTimezoneOffset():("string"==typeof t&&(t=z(t)),Math.abs(t)<16&&(t=60*t),this._offset=t,this._isUTC=!0,e!==t&&p(this,oe.duration(e-t,"m"),1,!0),this)},zoneAbbr:function(){return this._isUTC?"UTC":""},zoneName:function(){return this._isUTC?"Coordinated Universal Time":""},parseZone:function(){return this._tzm?this.zone(this._tzm):"string"==typeof this._i&&this.zone(this._i),this},hasAlignedHourOffset:function(t){return t=t?oe(t).zone():0,(this.zone()-t)%60===0},daysInMonth:function(){return w(this.year(),this.month())},dayOfYear:function(t){var e=de((oe(this).startOf("day")-oe(this).startOf("year"))/864e5)+1;return null==t?e:this.add("d",t-e)},quarter:function(){return Math.ceil((this.month()+1)/3)},weekYear:function(t){var e=Q(this,this.lang()._week.dow,this.lang()._week.doy).year;return null==t?e:this.add("y",t-e)},isoWeekYear:function(t){var e=Q(this,1,4).year;return null==t?e:this.add("y",t-e)},week:function(t){var e=this.lang().week(this);return null==t?e:this.add("d",7*(t-e))},isoWeek:function(t){var e=Q(this,1,4).week;return null==t?e:this.add("d",7*(t-e))},weekday:function(t){var e=(this.day()+7-this.lang()._week.dow)%7;return null==t?e:this.add("d",t-e)},isoWeekday:function(t){return null==t?this.day()||7:this.day(this.day()%7?t:t-7)},get:function(t){return t=v(t),this[t]()},set:function(t,e){return t=v(t),"function"==typeof this[t]&&this[t](e),this},lang:function(t){return t===i?this._lang:(this._lang=N(t),this)}}),re=0;re<Ve.length;re++)ee(Ve[re].toLowerCase().replace(/s$/,""),Ve[re]);ee("year","FullYear"),oe.fn.days=oe.fn.day,oe.fn.months=oe.fn.month,oe.fn.weeks=oe.fn.week,oe.fn.isoWeeks=oe.fn.isoWeek,oe.fn.toJSON=oe.fn.toISOString,d(oe.duration.fn=h.prototype,{_bubble:function(){var t,e,i,s,n=this._milliseconds,o=this._days,r=this._months,a=this._data;a.milliseconds=n%1e3,t=l(n/1e3),a.seconds=t%60,e=l(t/60),a.minutes=e%60,i=l(e/60),a.hours=i%24,o+=l(i/24),a.days=o%30,r+=l(o/30),a.months=r%12,s=l(r/12),a.years=s},weeks:function(){return l(this.days()/7)},valueOf:function(){return this._milliseconds+864e5*this._days+this._months%12*2592e6+31536e6*b(this._months/12)},humanize:function(t){var e=+this,i=$(e,!t,this.lang());return t&&(i=this.lang().pastFuture(e,i)),this.lang().postformat(i)},add:function(t,e){var i=oe.duration(t,e);return this._milliseconds+=i._milliseconds,this._days+=i._days,this._months+=i._months,this._bubble(),this},subtract:function(t,e){var i=oe.duration(t,e);return this._milliseconds-=i._milliseconds,this._days-=i._days,this._months-=i._months,this._bubble(),this},get:function(t){return t=v(t),this[t.toLowerCase()+"s"]()},as:function(t){return t=v(t),this["as"+t.charAt(0).toUpperCase()+t.slice(1)+"s"]()},lang:oe.fn.lang,toIsoString:function(){var t=Math.abs(this.years()),e=Math.abs(this.months()),i=Math.abs(this.days()),s=Math.abs(this.hours()),n=Math.abs(this.minutes()),o=Math.abs(this.seconds()+this.mi