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 0.3.0-SNAPSHOT
  8. * @date 2014-01-14
  9. *
  10. * @license
  11. * Copyright (C) 2011-2013 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 t;return function e(t,i,s){function n(o,a){if(!i[o]){if(!t[o]){var h="function"==typeof require&&require;if(!a&&h)return h(o,!0);if(r)return r(o,!0);throw new Error("Cannot find module '"+o+"'")}var d=i[o]={exports:{}};t[o][0].call(d.exports,function(e){var i=t[o][1][e];return n(i?i:e)},d,d.exports,e,t,i,s)}return i[o].exports}for(var r="function"==typeof require&&require,o=0;o<s.length;o++)n(s[o]);return n}({1:[function(t,e){!function(t,i){"use strict";function s(){if(!n.READY){n.event.determineEventTypes();for(var t in n.gestures)n.gestures.hasOwnProperty(t)&&n.detection.register(n.gestures[t]);n.event.onTouch(n.DOCUMENT,n.EVENT_MOVE,n.detection.detect),n.event.onTouch(n.DOCUMENT,n.EVENT_END,n.detection.detect),n.READY=!0}}var n=function(t,e){return new n.Instance(t,e||{})};n.defaults={stop_browser_behavior:{userSelect:"none",touchAction:"none",touchCallout:"none",contentZooming:"none",userDrag:"none",tapHighlightColor:"rgba(0,0,0,0)"}},n.HAS_POINTEREVENTS=navigator.pointerEnabled||navigator.msPointerEnabled,n.HAS_TOUCHEVENTS="ontouchstart"in t,n.MOBILE_REGEX=/mobile|tablet|ip(ad|hone|od)|android/i,n.NO_MOUSEEVENTS=n.HAS_TOUCHEVENTS&&navigator.userAgent.match(n.MOBILE_REGEX),n.EVENT_TYPES={},n.DIRECTION_DOWN="down",n.DIRECTION_LEFT="left",n.DIRECTION_UP="up",n.DIRECTION_RIGHT="right",n.POINTER_MOUSE="mouse",n.POINTER_TOUCH="touch",n.POINTER_PEN="pen",n.EVENT_START="start",n.EVENT_MOVE="move",n.EVENT_END="end",n.DOCUMENT=document,n.plugins={},n.READY=!1,n.Instance=function(t,e){var i=this;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 r=null,o=!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)&&(o=!0),d.match(/touch|pointer/)&&(a=!0);var c=0;o&&(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===r?r=h:h=r,i.call(n.detection,s.collectEventData(t,e,h)),n.HAS_POINTEREVENTS&&e==n.EVENT_END&&(c=n.PointerEvent.updatePointer(e,h))),c||(r=null,o=!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),r=n.POINTER_TOUCH;return(i.type.match(/mouse/)||n.PointerEvent.matchType(n.POINTER_MOUSE,i))&&(r=n.POINTER_MOUSE),{center:n.utils.getCenter(s),timeStamp:(new Date).getTime(),target:i.target,t
  26. return i="string"==typeof t?re.duration(+e,t):re.duration(t,e),u(this,i,-1),this},diff:function(t,e,i){var s,n,r=M(t,this),o=6e4*(this.zone()-r.zone());return e=m(e),"year"===e||"month"===e?(s=432e5*(this.daysInMonth()+r.daysInMonth()),n=12*(this.year()-r.year())+(this.month()-r.month()),n+=(this-re(this).startOf("month")-(r-re(r).startOf("month")))/s,n-=6e4*(this.zone()-re(this).startOf("month").zone()-(r.zone()-re(r).startOf("month").zone()))/s,"year"===e&&(n/=12)):(s=this-r,n="second"===e?s/1e3:"minute"===e?s/6e4:"hour"===e?s/36e5:"day"===e?(s-o)/864e5:"week"===e?(s-o)/6048e5:s),i?n:c(n)},from:function(t,e){return re.duration(this.diff(t)).lang(this.lang()._abbr).humanize(!e)},fromNow:function(t){return this.from(re(),t)},calendar:function(){var t=M(re(),this).startOf("day"),e=this.diff(t,"days",!0),i=-6>e?"sameElse":-1>e?"lastWeek":0>e?"lastDay":1>e?"sameDay":2>e?"nextDay":7>e?"nextWeek":"sameElse";return this.format(this.lang().calendar(i,this))},isLeapYear:function(){return E(this.year())},isDST:function(){return this.zone()<this.clone().month(0).zone()||this.zone()<this.clone().month(5).zone()},day:function(t){var e=this._isUTC?this._d.getUTCDay():this._d.getDay();return null!=t?(t=Z(t,this.lang()),this.add({d:t-e})):e},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())),re.updateOffset(this),this):this._d["get"+i+"Month"]()},startOf:function(t){switch(t=m(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=m(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)>+re(t).startOf(e)},isBefore:function(t,e){return e="undefined"!=typeof e?e:"millisecond",+this.clone().startOf(e)<+re(t).startOf(e)},isSame:function(t,e){return e=e||"ms",+this.clone().startOf(e)===+M(t,this).startOf(e)},min:function(t){return t=re.apply(null,arguments),this>t?this:t},max:function(t){return t=re.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=P(t)),Math.abs(t)<16&&(t=60*t),this._offset=t,this._isUTC=!0,e!==t&&u(this,re.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?re(t).zone():0,(this.zone()-t)%60===0},daysInMonth:function(){return w(this.year(),this.month())},dayOfYear:function(t){var e=de((re(this).startOf("day")-re(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=m(t),this[t]()},set:function(t,e){return t=m(t),"function"==typeof this[t]&&this[t](e),this},lang:function(t){return t===s?this._lang:(this._lang=N(t),this)}}),oe=0;oe<je.length;oe++)ee(je[oe].toLowerCase().replace(/s$/,""),je[oe]);ee("year","FullYear"),re.fn.days=re.fn.day,re.fn.months=re.fn.month,re.fn.weeks=re.fn.week,re.fn.isoWeeks=re.fn.isoWeek,r
  27. if(void 0!=t)h=this._filterFields(h,g);else for(c=0,l=f.length;l>c;c++)f[c]=this._filterFields(f[c],g)}if("DataTable"==a){var m=this._getColumnNames(s);if(void 0!=t)n._appendRow(s,m,h);else for(c=0,l=f.length;l>c;c++)n._appendRow(s,m,f[c]);return s}if(void 0!=t)return h;if(s){for(c=0,l=f.length;l>c;c++)s.push(f[c]);return s}return f},r.prototype.getIds=function(t){var e,i,s,n,r,o=this.data,a=t&&t.filter,h=t&&t.order,d=t&&t.convert||this.options.convert,c=[];if(a)if(h){r=[];for(s in o)o.hasOwnProperty(s)&&(n=this._getItem(s,d),a(n)&&r.push(n));for(this._sort(r,h),e=0,i=r.length;i>e;e++)c[e]=r[e][this.fieldId]}else for(s in o)o.hasOwnProperty(s)&&(n=this._getItem(s,d),a(n)&&c.push(n[this.fieldId]));else if(h){r=[];for(s in o)o.hasOwnProperty(s)&&r.push(o[s]);for(this._sort(r,h),e=0,i=r.length;i>e;e++)c[e]=r[e][this.fieldId]}else for(s in o)o.hasOwnProperty(s)&&(n=o[s],c.push(n[this.fieldId]));return c},r.prototype.forEach=function(t,e){var i,s,n=e&&e.filter,r=e&&e.convert||this.options.convert,o=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 o)o.hasOwnProperty(s)&&(i=this._getItem(s,r),(!n||n(i))&&t(i,s))},r.prototype.map=function(t,e){var i,s=e&&e.filter,n=e&&e.convert||this.options.convert,r=[],o=this.data;for(var a in o)o.hasOwnProperty(a)&&(i=this._getItem(a,n),(!s||s(i))&&r.push(t(i,a)));return e&&e.order&&this._sort(r,e.order),r},r.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},r.prototype._sort=function(t,e){if(P.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)}},r.prototype.remove=function(t,e){var i,s,n,r=[];if(t instanceof Array)for(i=0,s=t.length;s>i;i++)n=this._remove(t[i]),null!=n&&r.push(n);else n=this._remove(t),null!=n&&r.push(n);return r.length&&this._trigger("remove",{items:r},e),r},r.prototype._remove=function(t){if(P.isNumber(t)||P.isString(t)){if(this.data[t])return delete this.data[t],delete this.internalIds[t],t}else if(t instanceof Object){var e=t[this.fieldId];if(e&&this.data[e])return delete this.data[e],delete this.internalIds[e],e}return null},r.prototype.clear=function(t){var e=Object.keys(this.data);return this.data={},this.internalIds={},this._trigger("remove",{items:e},t),e},r.prototype.max=function(t){var e=this.data,i=null,s=null;for(var n in e)if(e.hasOwnProperty(n)){var r=e[n],o=r[t];null!=o&&(!i||o>s)&&(i=r,s=o)}return i},r.prototype.min=function(t){var e=this.data,i=null,s=null;for(var n in e)if(e.hasOwnProperty(n)){var r=e[n],o=r[t];null!=o&&(!i||s>o)&&(i=r,s=o)}return i},r.prototype.distinct=function(t){var e=this.data,i=[],s=this.options.convert[t],n=0;for(var r in e)if(e.hasOwnProperty(r)){for(var o=e[r],a=P.convert(o[t],s),h=!1,d=0;n>d;d++)if(i[d]==a){h=!0;break}h||(i[n]=a,n++)}return i},r.prototype._addItem=function(t){var e=t[this.fieldId];if(void 0!=e){if(this.data[e])throw new Error("Cannot add item: item with id "+e+" already exists")}else e=P.randomUUID(),t[this.fieldId]=e,this.internalIds[e]=t;var i={};for(var s in t)if(t.hasOwnProperty(s)){var n=this.convert[s];i[s]=P.convert(t[s],n)}return this.data[e]=i,e},r.prototype._getItem=function(t,e){var i,s,n=this.data[t];if(!n)return null;var r={},o=this.fieldId,a=this.internalIds;if(e)for(i in n)n.hasOwnProperty(i)&&(s=n[i],i==o&&s in a&&!this.showInternalIds||(r[i]=P.convert(s,e[i])));else for(i in n)n.hasOwnProperty(i)&&(s=n[i],i==o&&s in a&&!this.showInternalIds||(r[i]=s));return r},r.prototype._updateItem=function(t){var e=t[this.fieldId];if(void 0==e)throw new Error("Cannot update item: item has no id (item: "+JSON.stringify(t)+")");var i=this.data[e];if(!i)throw new Error("Cannot update item: no item with id "+e+" found");for(var s in t)if(t.hasOwnProperty(s)){var n=this.convert[s];i[s]=P.convert(t[s],n)}return e},r.prototype.isInternalId=function(t){return t in this.internalIds},r.prototype._getColumnNames=function(t){for(var e=[],i=0,s=t.getNumbe
  28. var l=P.convert(s.start,"Number"),u=P.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},g.prototype._updateConversion=function(){var t=this.range;if(!t)throw new Error("No range configured");this.conversion=t.conversion?t.conversion(this.width):h.conversion(t.start,t.end,this.width)},m.prototype=new u,m.prototype.setOptions=u.prototype.setOptions,m.prototype.getContainer=function(){return this.frame},m.prototype.repaint=function(){var t=this.frame,e=this.parent,i=e.parent.getContainer();if(!e)throw new Error("Cannot repaint bar: no parent attached");if(!i)throw new Error("Cannot repaint bar: parent has no container element");if(!this.getOption("showCurrentTime"))return t&&(i.removeChild(t),delete this.frame),void 0;t||(t=document.createElement("div"),t.className="currenttime",t.style.position="absolute",t.style.top="0px",t.style.height="100%",i.appendChild(t),this.frame=t),e.conversion||e._updateConversion();var s=new Date,n=e.toScreen(s);t.style.left=n+"px",t.title="Current time: "+s,void 0!==this.currentTimeTimer&&(clearTimeout(this.currentTimeTimer),delete this.currentTimeTimer);var r=this,o=1/e.conversion.scale/2;return 30>o&&(o=30),this.currentTimeTimer=setTimeout(function(){r.repaint()},o),!1},v.prototype=new u,v.prototype.setOptions=u.prototype.setOptions,v.prototype.getContainer=function(){return this.frame},v.prototype.repaint=function(){var t=this.frame,e=this.parent,i=e.parent.getContainer();if(!e)throw new Error("Cannot repaint bar: no parent attached");if(!i)throw new Error("Cannot repaint bar: parent has no container element");if(!this.getOption("showCustomTime"))return t&&(i.removeChild(t),delete this.frame),void 0;if(!t){t=document.createElement("div"),t.className="customtime",t.style.position="absolute",t.style.top="0px",t.style.height="100%",i.appendChild(t);var s=document.createElement("div");s.style.position="relative",s.style.top="0px",s.style.left="-10px",s.style.height="100%",s.style.width="20px",t.appendChild(s),this.frame=t,this.subscribe(this,"movetime")}e.conversion||e._updateConversion();var n=e.toScreen(this.customTime);return t.style.left=n+"px",t.title="Time: "+this.customTime,!1},v.prototype._setCustomTime=function(t){this.customTime=new Date(t.valueOf()),this.repaint()},v.prototype._getCustomTime=function(){return new Date(this.customTime.valueOf())},v.prototype.subscribe=function(t,e){var i=this,s={component:t,event:e,callback:function(t){i._onMouseDown(t,s)},params:{}};t.on("mousedown",s.callback),i.listeners.push(s)},v.prototype.on=function(t,e){var i=this.frame;if(!i)throw new Error("Cannot add event listener: no parent attached");Y.addListener(this,t,e),P.addEventListener(i,t,e)},v.prototype._onMouseDown=function(t,e){t=t||window.event;var i=e.params,s=t.which?1==t.which:1==t.button;if(s){i.mouseX=P.getPageX(t),i.moved=!1,i.customTime=this.customTime;var n=this;i.onMouseMove||(i.onMouseMove=function(t){n._onMouseMove(t,e)},P.addEventListener(document,"mousemove",i.onMouseMove)),i.onMouseUp||(i.onMouseUp=function(t){n._onMouseUp(t,e)},P.addEventListener(document,"mouseup",i.onMouseUp)),P.stopPropagation(t),P.preventDefault(t)}},v.prototype._onMouseMove=function(t,e){t=t||window.event;var i=e.params,s=this.parent,n=P.getPageX(t);void 0===i.mouseX&&(i.mouseX=n);var r=n-i.mouseX;Math.abs(r)>=1&&(i.moved=!0);var o=s.toScreen(i.customTime),a=o+r,h=s.toTime(a);this._setCustomTime(h),Y.trigger(this,"timechange",{customTime:this.customTime}),P.preventDefault(t)},v.prototype._onMouseUp=function(t,e){t=t||window.event;var i=e.params;i.onMouseMove&&(P.removeEventListener(document,"mousemove",i.onMouseMove),i.onMouseMove=null),i.onMouseUp&&(P.removeEventListener(document,"mouseup",i.onMouseUp),i.onMouseUp=null),i.moved&&Y.trigger(this,"timechanged",{customTime:this.customTime})},y.prototype=new p,y.types={box:w,range:E,rangeoverflow:S,point:b},y.prototype.setOptions=u.prototype.setOptions,y.prototype.s
  29. },CanvasRenderingContext2D.prototype.star=function(t,e,i){this.beginPath();for(var s=0;10>s;s++){var n=s%2===0?1.3*i:.5*i;this.lineTo(t+n*Math.sin(2*s*Math.PI/10),e-n*Math.cos(2*s*Math.PI/10))}this.closePath()},CanvasRenderingContext2D.prototype.roundRect=function(t,e,i,s,n){var r=Math.PI/180;0>i-2*n&&(n=i/2),0>s-2*n&&(n=s/2),this.beginPath(),this.moveTo(t+n,e),this.lineTo(t+i-n,e),this.arc(t+i-n,e+n,n,270*r,360*r,!1),this.lineTo(t+i,e+s-n),this.arc(t+i-n,e+s-n,n,0,90*r,!1),this.lineTo(t+n,e+s),this.arc(t+n,e+s-n,n,90*r,180*r,!1),this.lineTo(t,e+n),this.arc(t+n,e+n,n,180*r,270*r,!1)},CanvasRenderingContext2D.prototype.ellipse=function(t,e,i,s){var n=.5522848,r=i/2*n,o=s/2*n,a=t+i,h=e+s,d=t+i/2,c=e+s/2;this.beginPath(),this.moveTo(t,c),this.bezierCurveTo(t,c-o,d-r,e,d,e),this.bezierCurveTo(d+r,e,a,c-o,a,c),this.bezierCurveTo(a,c+o,d+r,h,d,h),this.bezierCurveTo(d-r,h,t,c+o,t,c)},CanvasRenderingContext2D.prototype.database=function(t,e,i,s){var n=1/3,r=i,o=s*n,a=.5522848,h=r/2*a,d=o/2*a,c=t+r,l=e+o,u=t+r/2,p=e+o/2,f=e+(s-o/2),g=e+s;this.beginPath(),this.moveTo(c,p),this.bezierCurveTo(c,p+d,u+h,l,u,l),this.bezierCurveTo(u-h,l,t,p+d,t,p),this.bezierCurveTo(t,p-d,u-h,e,u,e),this.bezierCurveTo(u+h,e,c,p-d,c,p),this.lineTo(c,f),this.bezierCurveTo(c,f+d,u+h,g,u,g),this.bezierCurveTo(u-h,g,t,f+d,t,f),this.lineTo(t,p)},CanvasRenderingContext2D.prototype.arrow=function(t,e,i,s){var n=t-s*Math.cos(i),r=e-s*Math.sin(i),o=t-.9*s*Math.cos(i),a=e-.9*s*Math.sin(i),h=n+s/3*Math.cos(i+.5*Math.PI),d=r+s/3*Math.sin(i+.5*Math.PI),c=n+s/3*Math.cos(i-.5*Math.PI),l=r+s/3*Math.sin(i-.5*Math.PI);this.beginPath(),this.moveTo(t,e),this.lineTo(h,d),this.lineTo(o,a),this.lineTo(c,l),this.closePath()},CanvasRenderingContext2D.prototype.dashedLine=function(t,e,i,s,n){n||(n=[10,5]),0==u&&(u=.001);var r=n.length;this.moveTo(t,e);for(var o=i-t,a=s-e,h=a/o,d=Math.sqrt(o*o+a*a),c=0,l=!0;d>=.1;){var u=n[c++%r];u>d&&(u=d);var p=Math.sqrt(u*u/(1+h*h));0>o&&(p=-p),t+=p,e+=h*p,this[l?"lineTo":"moveTo"](t,e),d-=u,l=!l}}),M.prototype.resetCluster=function(){this.formationScale=void 0,this.clusterSize=1,this.containedNodes={},this.containedEdges={}},M.prototype.attachEdge=function(t){-1==this.edges.indexOf(t)&&this.edges.push(t),this.dynamicEdges=this.edges,this.dynamicEdgesLength=this.edges.length,this._updateMass()},M.prototype.detachEdge=function(t){var e=this.edges.indexOf(t);-1!=e&&this.edges.splice(e,1),this.dynamicEdges=this.edges,this.dynamicEdgesLength=this.edges.length,this._updateMass()},M.prototype._updateMass=function(){this.mass=50+20*this.edges.length},M.prototype.setProperties=function(t,e){if(t){if(void 0!==t.id&&(this.id=t.id),void 0!==t.label&&(this.label=t.label),void 0!==t.title&&(this.title=t.title),void 0!==t.group&&(this.group=t.group),void 0!==t.x&&(this.x=t.x),void 0!==t.y&&(this.y=t.y),void 0!==t.value&&(this.value=t.value),void 0===this.id)throw"Node must have an id";if(this.group){var i=this.grouplist.get(this.group);for(var s in i)i.hasOwnProperty(s)&&(this[s]=i[s])}if(void 0!==t.shape&&(this.shape=t.shape),void 0!==t.image&&(this.image=t.image),void 0!==t.radius&&(this.radius=t.radius),void 0!==t.color&&(this.color=M.parseColor(t.color)),void 0!==t.fontColor&&(this.fontColor=t.fontColor),void 0!==t.fontSize&&(this.fontSize=t.fontSize),void 0!==t.fontFace&&(this.fontFace=t.fontFace),void 0!==this.image){if(!this.imagelist)throw"No imagelist provided";this.imageObj=this.imagelist.load(this.image)}switch(this.xFixed=this.xFixed||void 0!==t.x,this.yFixed=this.yFixed||void 0!==t.y,this.radiusFixed=this.radiusFixed||void 0!==t.radius,"image"==this.shape&&(this.radiusMin=e.nodes.widthMin,this.radiusMax=e.nodes.widthMax),this.shape){case"database":this.draw=this._drawDatabase,this.resize=this._resizeDatabase;break;case"box":this.draw=this._drawBox,this.resize=this._resizeBox;break;case"circle":this.draw=this._drawCircle,this.resize=this._resizeCircle;break;case"ellipse":this.draw=this._drawEllipse,this.resize=this._resizeEllipse;break;case"image":this.draw=this._drawImage,this.resize=this._resizeImage;break;case"text":this.draw=this._drawText,
  30. void 0!==t.edges.length&&t.nodes&&void 0===t.nodes.distance&&(this.constants.edges.length=t.edges.length,this.constants.nodes.distance=1.25*t.edges.length),t.edges.fontColor||(this.constants.edges.fontColor=t.edges.color),t.edges.dash&&(void 0!==t.edges.dash.length&&(this.constants.edges.dash.length=t.edges.dash.length),void 0!==t.edges.dash.gap&&(this.constants.edges.dash.gap=t.edges.dash.gap),void 0!==t.edges.dash.altLength&&(this.constants.edges.dash.altLength=t.edges.dash.altLength))}if(t.nodes){for(e in t.nodes)t.nodes.hasOwnProperty(e)&&(this.constants.nodes[e]=t.nodes[e]);t.nodes.color&&(this.constants.nodes.color=M.parseColor(t.nodes.color))}if(console.log(t),t.groups)for(var i in t.groups)if(t.groups.hasOwnProperty(i)){var s=t.groups[i];this.groups.add(i,s)}}this.setSize(this.width,this.height),this._setTranslation(this.frame.clientWidth/2,this.frame.clientHeight/2),this._setScale(1)},I.prototype._trigger=function(t,e){Y.trigger(this,t,e)},I.prototype._create=function(){for(;this.containerElement.hasChildNodes();)this.containerElement.removeChild(this.containerElement.firstChild);if(this.frame=document.createElement("div"),this.frame.className="graph-frame",this.frame.style.position="relative",this.frame.style.overflow="hidden",this.frame.canvas=document.createElement("canvas"),this.frame.canvas.style.position="relative",this.frame.appendChild(this.frame.canvas),!this.frame.canvas.getContext){var t=document.createElement("DIV");t.style.color="red",t.style.fontWeight="bold",t.style.padding="10px",t.innerHTML="Error: your browser does not support HTML canvas",this.frame.canvas.appendChild(t)}var e=this;this.drag={},this.pinch={},this.hammer=L(this.frame.canvas,{prevent_default:!0}),this.hammer.on("tap",e._onTap.bind(e)),this.hammer.on("hold",e._onHold.bind(e)),this.hammer.on("pinch",e._onPinch.bind(e)),this.hammer.on("touch",e._onTouch.bind(e)),this.hammer.on("dragstart",e._onDragStart.bind(e)),this.hammer.on("drag",e._onDrag.bind(e)),this.hammer.on("dragend",e._onDragEnd.bind(e)),this.hammer.on("mousewheel",e._onMouseWheel.bind(e)),this.hammer.on("DOMMouseScroll",e._onMouseWheel.bind(e)),this.hammer.on("mousemove",e._onMouseMoveTitle.bind(e)),this.mouseTrap=A,this.mouseTrap.bind("=",this.decreaseClusterLevel.bind(e)),this.mouseTrap.bind("-",this.increaseClusterLevel.bind(e)),this.mouseTrap.bind("s",this.singleStep.bind(e)),this.mouseTrap.bind("h",this.aggregateHubs.bind(e)),this.mouseTrap.bind("f",this.toggleFreeze.bind(e)),this.containerElement.appendChild(this.frame)},I.prototype._getNodeAt=function(t){var e=this._canvasToX(t.x),i=this._canvasToY(t.y),s={left:e,top:i,right:e,bottom:i},n=this._getNodesOverlappingWith(s);return n.length>0?n[n.length-1]:null},I.prototype._getPointer=function(t){return{x:t.pageX-H.util.getAbsoluteLeft(this.frame.canvas),y:t.pageY-H.util.getAbsoluteTop(this.frame.canvas)}},I.prototype._onTouch=function(t){this.drag.pointer=this._getPointer(t.gesture.touches[0]),this.drag.pinched=!1,this.pinch.scale=this._getScale()},I.prototype._onDragStart=function(){var t=this.drag;t.selection=[],t.translation=this._getTranslation(),t.nodeId=this._getNodeAt(t.pointer);var e=this.nodes[t.nodeId];if(e){e.isSelected()||this._selectNodes([t.nodeId]);var i=this;this.selection.forEach(function(e){var s=i.nodes[e];if(s){var n={id:e,node:s,x:s.x,y:s.y,xFixed:s.xFixed,yFixed:s.yFixed};s.xFixed=!0,s.yFixed=!0,t.selection.push(n)}})}},I.prototype._onDrag=function(t){if(!this.drag.pinched){var e=this._getPointer(t.gesture.touches[0]),i=this,s=this.drag,n=s.selection;if(n&&n.length){var r=e.x-s.pointer.x,o=e.y-s.pointer.y;n.forEach(function(t){var e=t.node;t.xFixed||(e.x=i._canvasToX(i._xToCanvas(t.x)+r)),t.yFixed||(e.y=i._canvasToY(i._yToCanvas(t.y)+o))}),this.moving||(this.moving=!0,this.start())}else{var a=e.x-this.drag.pointer.x,h=e.y-this.drag.pointer.y;this._setTranslation(this.drag.translation.x+a,this.drag.translation.y+h),this._redraw(),this.moved=!0}}},I.prototype._onDragEnd=function(){var t=this.drag.selection;t&&t.forEach(function(t){t.node.xFixed=t.xFixed,t.node.yFixed=t.yFixed})},I.prototype._on