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 1.0.3-SNAPSHOT
  8. * @date 2014-05-28
  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(a,r){if(!i[a]){if(!e[a]){var h="function"==typeof require&&require;if(!r&&h)return h(a,!0);if(o)return o(a,!0);throw new Error("Cannot find module '"+a+"'")}var d=i[a]={exports:{}};e[a][0].call(d.exports,function(t){var i=e[a][1][t];return n(i?i:t)},d,d.exports,t,e,i,s)}return i[a].exports}for(var o="function"==typeof require&&require,a=0;a<s.length;a++)n(s[a]);return n}({1:[function(require,module,exports){function DataSet(t,e){if(this.id=util.randomUUID(),!t||Array.isArray(t)||util.isDataTable(t)||(e=t,t=null),this.options=e||{},this.data={},this.fieldId=this.options.fieldId||"id",this.convert={},this.showInternalIds=this.options.showInternalIds||!1,this.options.convert)for(var i in this.options.convert)if(this.options.convert.hasOwnProperty(i)){var s=this.options.convert[i];this.convert[i]="Date"==s||"ISODate"==s||"ASPDate"==s?"Date":s}this.subscribers={},this.internalIds={},t&&this.add(t)}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 TimeStep(t,e,i){this.current=new Date,this._start=new Date,this._end=new Date,this.autoScale=!0,this.scale=TimeStep.SCALE.DAY,this.step=1,this.setRange(t,e,i)}function Range(t,e,i){this.id=util.randomUUID(),this.start=null,this.end=null,this.root=t,this.parent=e,this.options=i||{},this.root.on("dragstart",this._onDragStart.bind(this)),this.root.on("drag",this._onDrag.bind(this)),this.root.on("dragend",this._onDragEnd.bind(this)),this.root.on("hold",this._onHold.bind(this)),this.root.on("mousewheel",this._onMouseWheel.bind(this)),this.root.on("DOMMouseScroll",this._onMouseWheel.bind(this)),this.root.on("touch",this._onTouch.bind(this)),this.root.on("pinch",this._onPinch.bind(this)),this.setOptions(i)}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 Component(){this.id=null,this.parent=null,this.childs=null,this.options=null,this.top=0,this.left=0,this.width=0,this.height=0}function Panel(t){this.id=util.randomUUID(),this.parent=null,this.childs=[],this.options=t||{},this.frame="undefined"!=typeof document?document.createElement("div"):null}function RootPanel(t,e){if(this.id=util.randomUUID(),this.container=t,this.options=e||{},this.defaultOptions={autoResize:!0},this._create(),!this.container)throw new Error("Cannot repaint root panel: no container attached");this.container.appendChild(this.getFrame()),this._initWatch()}function TimeAxis(t){this.id=util.randomUUID(),this.dom={majorLines:[],majorTexts:[],minorLines:[],minorTexts:[],redundant:{majorLines:[],majorTexts:[],minorLines:[],minorTexts:[]}},this.props={range:{start:0,end:0,minimumStep:0},lineTop:0},this.options=t||{},this.defaultOptions={orientation:"bottom",showMinorLabels:!0,showMajorLabels:!0},this.range=null,this._create()}function CurrentTime(t,e){this.id=util.randomUUID(),this.range=t,this.options=e||{},this.defaultOptions={showCurrentTime:!1},this._create()}function CustomTime(t){this.id=util.randomUUID(),this.options=t||{},this.defaultOptions={showCustomTime:!1},this.customTime=new Date,this.eventParams={},this._create()}function ItemSet(t,e,i,s){this.id=util.randomUUID(),this.options=s||{},this.backgroundPanel=t,this.axisPanel=e,this.sidePanel=i,this.itemOptions=Object.create(this.options),this.dom={},this.hammer=null;var n=this;this.itemsData=null,this.groupsData=null,this.range=null,this.itemListeners={add:function(t,e,i){i!=n.id&&n._onAdd(e.items)},update:function(t,e,i){i!=n.id&&n._onUpdate(e.items)},remove:function
  26. },util.removeEventListener=function(t,e,i,s){t.removeEventListener?(void 0===s&&(s=!1),"mousewheel"===e&&navigator.userAgent.indexOf("Firefox")>=0&&(e="DOMMouseScroll"),t.removeEventListener(e,i,s)):t.detachEvent("on"+e,i)},util.getTarget=function(t){t||(t=window.event);var e;return t.target?e=t.target:t.srcElement&&(e=t.srcElement),void 0!=e.nodeType&&3==e.nodeType&&(e=e.parentNode),e},util.fakeGesture=function(t,e){var i=null,s=Hammer.event.collectEventData(this,i,e);return isNaN(s.center.pageX)&&(s.center.pageX=e.pageX),isNaN(s.center.pageY)&&(s.center.pageY=e.pageY),s},util.option={},util.option.asBoolean=function(t,e){return"function"==typeof t&&(t=t()),null!=t?0!=t:e||null},util.option.asNumber=function(t,e){return"function"==typeof t&&(t=t()),null!=t?Number(t)||e||null:e||null},util.option.asString=function(t,e){return"function"==typeof t&&(t=t()),null!=t?String(t):e||null},util.option.asSize=function(t,e){return"function"==typeof t&&(t=t()),util.isString(t)?t:util.isNumber(t)?t+"px":e||null},util.option.asElement=function(t,e){return"function"==typeof t&&(t=t()),t||e||null},util.GiveDec=function GiveDec(Hex){var Value;return Value="A"==Hex?10:"B"==Hex?11:"C"==Hex?12:"D"==Hex?13:"E"==Hex?14:"F"==Hex?15:eval(Hex)},util.GiveHex=function(t){var e;return e=10==t?"A":11==t?"B":12==t?"C":13==t?"D":14==t?"E":15==t?"F":""+t},util.parseColor=function(t){var e;if(util.isString(t))if(util.isValidHex(t)){var i=util.hexToHSV(t),s={h:i.h,s:.45*i.s,v:Math.min(1,1.05*i.v)},n={h:i.h,s:Math.min(1,1.25*i.v),v:.6*i.v},o=util.HSVToHex(n.h,n.h,n.v),a=util.HSVToHex(s.h,s.s,s.v);e={background:t,border:o,highlight:{background:a,border:o}}}else e={background:t,border:t,highlight:{background:t,border:t}};else e={},e.background=t.background||"white",e.border=t.border||e.background,util.isString(t.highlight)?e.highlight={border:t.highlight,background:t.highlight}:(e.highlight={},e.highlight.background=t.highlight&&t.highlight.background||e.background,e.highlight.border=t.highlight&&t.highlight.border||e.border);return e},util.hexToRGB=function(t){t=t.replace("#","").toUpperCase();var e=util.GiveDec(t.substring(0,1)),i=util.GiveDec(t.substring(1,2)),s=util.GiveDec(t.substring(2,3)),n=util.GiveDec(t.substring(3,4)),o=util.GiveDec(t.substring(4,5)),a=util.GiveDec(t.substring(5,6)),r=16*e+i,h=16*s+n,i=16*o+a;return{r:r,g:h,b:i}},util.RGBToHex=function(t,e,i){var s=util.GiveHex(Math.floor(t/16)),n=util.GiveHex(t%16),o=util.GiveHex(Math.floor(e/16)),a=util.GiveHex(e%16),r=util.GiveHex(Math.floor(i/16)),h=util.GiveHex(i%16),d=s+n+o+a+r+h;return"#"+d},util.RGBToHSV=function(t,e,i){t/=255,e/=255,i/=255;var s=Math.min(t,Math.min(e,i)),n=Math.max(t,Math.max(e,i));if(s==n)return{h:0,s:0,v:s};var o=t==s?e-i:i==s?t-e:i-t,a=t==s?3:i==s?1:5,r=60*(a-o/(n-s))/360,h=(n-s)/n,d=n;return{h:r,s:h,v:d}},util.HSVToRGB=function(t,e,i){var s,n,o,a=Math.floor(6*t),r=6*t-a,h=i*(1-e),d=i*(1-r*e),c=i*(1-(1-r)*e);switch(a%6){case 0:s=i,n=c,o=h;break;case 1:s=d,n=i,o=h;break;case 2:s=h,n=i,o=c;break;case 3:s=h,n=d,o=i;break;case 4:s=c,n=h,o=i;break;case 5:s=i,n=h,o=d}return{r:Math.floor(255*s),g:Math.floor(255*n),b:Math.floor(255*o)}},util.HSVToHex=function(t,e,i){var s=util.HSVToRGB(t,e,i);return util.RGBToHex(s.r,s.g,s.b)},util.hexToHSV=function(t){var e=util.hexToRGB(t);return util.RGBToHSV(e.r,e.g,e.b)},util.isValidHex=function(t){var e=/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(t);return e},util.copyObject=function(t,e){for(var i in t)t.hasOwnProperty(i)&&("object"==typeof t[i]?(e[i]={},util.copyObject(t[i],e[i])):e[i]=t[i])},DataSet.prototype.on=function(t,e){var i=this.subscribers[t];i||(i=[],this.subscribers[t]=i),i.push({callback:e})},DataSet.prototype.subscribe=DataSet.prototype.on,DataSet.prototype.off=function(t,e){var i=this.subscribers[t];i&&(this.subscribers[t]=i.filter(function(t){return t.callback!=e}))},DataSet.prototype.unsubscribe=DataSet.prototype.off,DataSet.prototype._trigger=function(t,e,i){if("*"==t)throw new Error("Cannot trigger event *");var s=[];t in this.subscribers&&(s=s.concat(this.subscribers[t])),"*"in this.subscribers&&(s=s.concat(this.subs
  27. i.minorLabelHeight=a?i.minorCharHeight:0,i.majorLabelHeight=r?i.majorCharHeight:0,this.height=i.minorLabelHeight+i.majorLabelHeight,this.width=s.offsetWidth,i.minorLineHeight=h+i.minorLabelHeight,i.minorLineWidth=1,i.majorLineHeight=h+this.height,i.majorLineWidth=1;var d=s.nextSibling;n.removeChild(s),"top"==o?(s.style.top="0",s.style.left="0",s.style.bottom="",s.style.width=t(e.width,"100%"),s.style.height=this.height+"px"):(s.style.top="",s.style.bottom="0",s.style.left="0",s.style.width=t(e.width,"100%"),s.style.height=this.height+"px"),this._repaintLabels(),this._repaintLine(),d?n.insertBefore(s,d):n.appendChild(s)}return this._isResized()},TimeAxis.prototype._repaintLabels=function(){var t=this.getOption("orientation"),e=util.convert(this.range.start,"Number"),i=util.convert(this.range.end,"Number"),s=this.options.toTime(7*(this.props.minorCharWidth||10)).valueOf()-this.options.toTime(0).valueOf(),n=new TimeStep(new Date(e),new Date(i),s);this.step=n;var o=this.dom;o.redundant.majorLines=o.majorLines,o.redundant.majorTexts=o.majorTexts,o.redundant.minorLines=o.minorLines,o.redundant.minorTexts=o.minorTexts,o.majorLines=[],o.majorTexts=[],o.minorLines=[],o.minorTexts=[],n.first();for(var a=void 0,r=0;n.hasNext()&&1e3>r;){r++;var h=n.getCurrent(),d=this.options.toScreen(h),c=n.isMajor();this.getOption("showMinorLabels")&&this._repaintMinorText(d,n.getLabelMinor(),t),c&&this.getOption("showMajorLabels")?(d>0&&(void 0==a&&(a=d),this._repaintMajorText(d,n.getLabelMajor(),t)),this._repaintMajorLine(d,t)):this._repaintMinorLine(d,t),n.next()}if(this.getOption("showMajorLabels")){var l=this.options.toTime(0),u=n.getLabelMajor(l),p=u.length*(this.props.majorCharWidth||10)+10;(void 0==a||a>p)&&this._repaintMajorText(0,u,t)}util.forEach(this.dom.redundant,function(t){for(;t.length;){var e=t.pop();e&&e.parentNode&&e.parentNode.removeChild(e)}})},TimeAxis.prototype._repaintMinorText=function(t,e,i){var s=this.dom.redundant.minorTexts.shift();if(!s){var n=document.createTextNode("");s=document.createElement("div"),s.appendChild(n),s.className="text minor",this.frame.appendChild(s)}this.dom.minorTexts.push(s),s.childNodes[0].nodeValue=e,"top"==i?(s.style.top=this.props.majorLabelHeight+"px",s.style.bottom=""):(s.style.top="",s.style.bottom=this.props.majorLabelHeight+"px"),s.style.left=t+"px"},TimeAxis.prototype._repaintMajorText=function(t,e,i){var s=this.dom.redundant.majorTexts.shift();if(!s){var n=document.createTextNode(e);s=document.createElement("div"),s.className="text major",s.appendChild(n),this.frame.appendChild(s)}this.dom.majorTexts.push(s),s.childNodes[0].nodeValue=e,"top"==i?(s.style.top="0px",s.style.bottom=""):(s.style.top="",s.style.bottom="0px"),s.style.left=t+"px"},TimeAxis.prototype._repaintMinorLine=function(t,e){var i=this.dom.redundant.minorLines.shift();i||(i=document.createElement("div"),i.className="grid vertical minor",this.frame.appendChild(i)),this.dom.minorLines.push(i);var s=this.props;"top"==e?(i.style.top=this.props.majorLabelHeight+"px",i.style.bottom=""):(i.style.top="",i.style.bottom=this.props.majorLabelHeight+"px"),i.style.height=s.minorLineHeight+"px",i.style.left=t-s.minorLineWidth/2+"px"},TimeAxis.prototype._repaintMajorLine=function(t,e){var i=this.dom.redundant.majorLines.shift();i||(i=document.createElement("DIV"),i.className="grid vertical major",this.frame.appendChild(i)),this.dom.majorLines.push(i);var s=this.props;"top"==e?(i.style.top="0px",i.style.bottom=""):(i.style.top="",i.style.bottom="0px"),i.style.left=t-s.majorLineWidth/2+"px",i.style.height=s.majorLineHeight+"px"},TimeAxis.prototype._repaintLine=function(){var t=this.dom.line,e=this.frame,i=this.getOption("orientation");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),"top"==i?(t.style.top=this.height+"px",t.style.bottom=""):(t.style.top="",t.style.bottom=this.height+"px")):t&&t.parentNode&&(t.parentNode.removeChild(t),delete this.dom.line)},TimeAxis.prototype._c
  28. s.parentNode&&s.parentNode.removeChild(s)},Group.prototype.add=function(t){if(this.items[t.id]=t,t.setParent(this),t instanceof ItemRange&&-1==this.visibleItems.indexOf(t)){var e=this.itemSet.range;this._checkIfVisible(t,this.visibleItems,e)}},Group.prototype.remove=function(t){delete this.items[t.id],t.setParent(this.itemSet);var e=this.visibleItems.indexOf(t);-1!=e&&this.visibleItems.splice(e,1)},Group.prototype.removeFromDataSet=function(t){this.itemSet.removeItem(t.id)},Group.prototype.order=function(){var t=util.toArray(this.items);this.orderedItems.byStart=t,this.orderedItems.byEnd=this._constructByEndArray(t),stack.orderByStart(this.orderedItems.byStart),stack.orderByEnd(this.orderedItems.byEnd)},Group.prototype._constructByEndArray=function(t){for(var e=[],i=0;i<t.length;i++)t[i]instanceof ItemRange&&e.push(t[i]);return e},Group.prototype._updateVisibleItems=function(t,e,i){var s,n,o=[];if(e.length>0)for(n=0;n<e.length;n++)this._checkIfVisible(e[n],o,i);s=0==o.length?this._binarySearch(t,i,!1):t.byStart.indexOf(o[0]);var a=this._binarySearch(t,i,!0);if(-1!=s){for(n=s;n>=0&&!this._checkIfInvisible(t.byStart[n],o,i);n--);for(n=s+1;n<t.byStart.length&&!this._checkIfInvisible(t.byStart[n],o,i);n++);}if(-1!=a){for(n=a;n>=0&&!this._checkIfInvisible(t.byEnd[n],o,i);n--);for(n=a+1;n<t.byEnd.length&&!this._checkIfInvisible(t.byEnd[n],o,i);n++);}return o},Group.prototype._binarySearch=function(t,e,i){var s=[],n=i?"end":"start";s=1==i?t.byEnd:t.byStart;var o,a=e.end-e.start,r=!1,h=0,d=s.length,c=Math.floor(.5*(d+h));if(0==d)c=-1;else if(1==d)c=s[c].data[n]>e.start-a&&s[c].data[n]<e.end?0:-1;else for(d-=1;0==r;)s[c].data[n]>e.start-a&&s[c].data[n]<e.end?r=!0:(s[c].data[n]<e.start-a?h=Math.floor(.5*(d+h)):d=Math.floor(.5*(d+h)),o=Math.floor(.5*(d+h)),c==o?(c=-1,r=!0):c=o);return c},Group.prototype._checkIfInvisible=function(t,e,i){return t.isVisible(i)?(t.displayed||t.show(),t.repositionX(),-1==e.indexOf(t)&&e.push(t),!1):!0},Group.prototype._checkIfVisible=function(t,e,i){t.isVisible(i)?(t.displayed||t.show(),t.repositionX(),e.push(t)):t.displayed&&t.hide()},Emitter(Timeline.prototype),Timeline.prototype.setOptions=function(t){if(util.deepExtend(this.options,t),"editable"in t){var e="boolean"==typeof t.editable;this.options.editable={updateTime:e?t.editable:t.editable.updateTime||!1,updateGroup:e?t.editable:t.editable.updateGroup||!1,add:e?t.editable:t.editable.add||!1,remove:e?t.editable:t.editable.remove||!1}}this.range.setRange(t.start,t.end),("editable"in t||"selectable"in t)&&this.setSelection(this.options.selectable?this.getSelection():[]),this.itemSet.markDirty();var i=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);if(["onAdd","onUpdate","onRemove","onMove"].forEach(i),this.options.showCurrentTime?this.mainPanel.hasChild(this.currentTime)||(this.mainPanel.appendChild(this.currentTime),this.currentTime.start()):this.mainPanel.hasChild(this.currentTime)&&(this.currentTime.stop(),this.mainPanel.removeChild(this.currentTime)),this.options.showCustomTime?this.mainPanel.hasChild(this.customTime)||this.mainPanel.appendChild(this.customTime):this.mainPanel.hasChild(this.customTime)&&this.mainPanel.removeChild(this.customTime),t&&t.order)throw new Error("Option order is deprecated. There is no replacement for this feature.");this.rootPanel.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(e=t?t instanceof DataSet||t instanceof DataView?t:new DataSet(t,{convert:{start:"Date",end:"Date"}}):null,this.itemsData=e,this.itemSet.setItems(e),i&&(void 0==this.options.start||void 0==this.options.end)){this.fit();var s=void 0!=this.options.star
  29. },Edge.prototype.disconnect=function(){this.from&&(this.from.detachEdge(this),this.from=null),this.to&&(this.to.detachEdge(this),this.to=null),this.connected=!1},Edge.prototype.getTitle=function(){return"function"==typeof this.title?this.title():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(this.connected){var e=10,i=this.from.x,s=this.from.y,n=this.to.x,o=this.to.y,a=t.left,r=t.top,h=this._getDistanceToEdge(i,s,n,o,a,r);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,a=this.length/4,r=this.from;r.width||r.resize(t),r.width>r.height?(n=r.x+r.width/2,o=r.y-a):(n=r.x+a,o=r.y-r.height/2),this._circle(t,n,o,a),e=this._pointOnCircle(n,o,a,.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=this.fontFill;var n=t.measureText(e).width,o=this.fontSize,a=i-n/2,r=s-o/2;t.fillRect(a,r,n,o),t.fillStyle=this.fontColor||"black",t.textAlign="left",t.textBaseline="top",t.fillText(e,a,r)}},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)*this.ar
  30. var n=0;for(i in s)s.hasOwnProperty(i)&&n<s[i].amount&&(n=s[i].amount);for(i in s)s.hasOwnProperty(i)&&(s[i].nodeSpacing=(n+1)*this.constants.hierarchicalLayout.nodeSpacing,s[i].nodeSpacing/=s[i].amount+1,s[i].minPos=s[i].nodeSpacing-.5*(s[i].amount+1)*s[i].nodeSpacing);return s},_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 a=!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,a=!0):o.yFixed&&o.level>s&&(o.yFixed=!1,o.y=i[o.level].minPos,a=!0),1==a&&(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'>"+this.constants.labels.add+"</span></span><div class='graph-seperatorLine'></div><span class='graph-manipulationUI connect' id='graph-manipulate-connectNode'><span class='graph-manipulationLabel'>"+this.constants.labels.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'>"+this.constants.labels.editNode+"</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'>"+this.constants.labels.del+"</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-
  31. return t},getSelectedEdges:function(){var t=[];for(var e in this.selectionObj.edges)this.selectionObj.edges.hasOwnProperty(e)&&t.push(e);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)
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