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js.vega.min.js Maven / Gradle / Ivy
vg=function(d3,topojson){var vg={version:"1.3.3",d3:d3,topojson:topojson};var toString=Object.prototype.toString;vg.isObject=function(obj){return obj===Object(obj)};vg.isFunction=function(obj){return toString.call(obj)=="[object Function]"};vg.isString=function(obj){return toString.call(obj)=="[object String]"};vg.isArray=Array.isArray||function(obj){return toString.call(obj)=="[object Array]"};vg.isNumber=function(obj){return toString.call(obj)=="[object Number]"};vg.isBoolean=function(obj){return toString.call(obj)=="[object Boolean]"};vg.isTree=function(obj){return obj&&obj.__vgtree__};vg.tree=function(obj,children){var d=[obj];d.__vgtree__=true;d.children=children||"children";return d};vg.number=function(s){return+s};vg.boolean=function(s){return!!s};vg.identity=function(x){return x};vg.extend=function(obj){for(var x,name,i=1,len=arguments.length;i1?function(x){return s.reduce(function(x,f){return x[f]},x)}:function(x){return x[f]}};vg.comparator=function(sort){var sign=[];if(sort===undefined)sort=[];sort=vg.array(sort).map(function(f){var s=1;if(f[0]==="-"){s=-1;f=f.slice(1)}else if(f[0]==="+"){s=+1;f=f.slice(1)}sign.push(s);return vg.accessor(f)});return function(a,b){var i,n,f,x,y;for(i=0,n=sort.length;iy)return sign[i]}return 0}};vg.cmp=function(a,b){return ab?1:0};vg.numcmp=function(a,b){return a-b};vg.array=function(x){return x!=null?vg.isArray(x)?x:[x]:[]};vg.values=function(x){return vg.isObject(x)&&!vg.isArray(x)&&x.values?x.values:x};vg.str=function(x){return vg.isArray(x)?"["+x.map(vg.str)+"]":vg.isObject(x)?JSON.stringify(x):vg.isString(x)?"'"+vg_escape_str(x)+"'":x};var escape_str_re=/(^|[^\\])'/g;function vg_escape_str(x){return x.replace(escape_str_re,"$1\\'")}vg.keys=function(x){var keys=[];for(var key in x)keys.push(key);return keys};vg.unique=function(data,f,results){if(!vg.isArray(data)||data.length==0)return[];f=f||vg.identity;results=results||[];for(var v,i=0,n=data.length;imax){max=v;idx=i}}return idx};vg.truncate=function(s,length,pos,word,ellipsis){var len=s.length;if(len<=length)return s;ellipsis=ellipsis||"...";var l=Math.max(0,length-ellipsis.length);switch(pos){case"left":return ellipsis+(word?vg_truncateOnWord(s,l,1):s.slice(len-l));case"middle":case"center":var l1=Math.ceil(l/2),l2=Math.floor(l/2);return(word?vg_truncateOnWord(s,l1):s.slice(0,l1))+ellipsis+(word?vg_truncateOnWord(s,l2,1):s.slice(len-l2));default:return(word?vg_truncateOnWord(s,l):s.slice(0,l))+ellipsis}};function vg_truncateOnWord(s,len,rev){var cnt=0,tok=s.split(vg_truncate_word_re);if(rev){s=(tok=tok.reverse()).filter(function(w){cnt+=w.length;return cnt<=len}).reverse()}else{s=tok.filter(function(w){cnt+=w.length;return cnt<=len})}return s.length?s.join("").trim():tok[0].slice(0,len)}var vg_truncate_word_re=/([\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u2028\u2029\u3000\uFEFF])/;function vg_write(msg){vg.config.isNode?process.stderr.write(msg+"\n"):console.log(msg)}vg.log=function(msg){vg_write("[Vega Log] "+msg)};vg.error=function(msg){msg="[Vega Err] "+msg;vg_write(msg);if(typeof alert!=="undefined")alert(msg)};vg.config={};vg.config.isNode=typeof exports!=="undefined"&&this.exports!==exports;vg.config.baseURL="";vg.config.svgNamespace='version="1.1" xmlns="http://www.w3.org/2000/svg" '+'xmlns:xlink="http://www.w3.org/1999/xlink"';vg.config.autopadInset=5;vg.config.scale={time:d3.time.scale,utc:d3.time.scale.utc};vg.config.render={lineWidth:1,lineCap:"butt",font:"sans-serif",fontSize:11};vg.config.axis={orient:"bottom",ticks:10,padding:3,axisColor:"#000",gridColor:"#d8d8d8",tickColor:"#000",tickLabelColor:"#000",axisWidth:1,tickWidth:1,tickSize:6,tickLabelFontSize:11,tickLabelFont:"sans-serif",titleColor:"#000",titleFont:"sans-serif",titleFontSize:11,titleFontWeight:"bold",titleOffset:35};vg.config.legend={orient:"right",offset:10,padding:3,gradientStrokeColor:"#888",gradientStrokeWidth:1,gradientHeight:16,gradientWidth:100,labelColor:"#000",labelFontSize:10,labelFont:"sans-serif",labelAlign:"left",labelBaseline:"middle",labelOffset:8,symbolShape:"circle",symbolSize:50,symbolColor:"#888",symbolStrokeWidth:1,titleColor:"#000",titleFont:"sans-serif",titleFontSize:11,titleFontWeight:"bold"};vg.config.color={rgb:[128,128,128],lab:[50,0,0],hcl:[0,0,50],hsl:[0,0,.5]};vg.config.range={category10:["#1f77b4","#ff7f0e","#2ca02c","#d62728","#9467bd","#8c564b","#e377c2","#7f7f7f","#bcbd22","#17becf"],category20:["#1f77b4","#aec7e8","#ff7f0e","#ffbb78","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5","#8c564b","#c49c94","#e377c2","#f7b6d2","#7f7f7f","#c7c7c7","#bcbd22","#dbdb8d","#17becf","#9edae5"],shapes:["circle","cross","diamond","square","triangle-down","triangle-up"]};vg.Bounds=function(){var bounds=function(b){this.clear();if(b)this.union(b)};var prototype=bounds.prototype;prototype.clear=function(){this.x1=+Number.MAX_VALUE;this.y1=+Number.MAX_VALUE;this.x2=-Number.MAX_VALUE;this.y2=-Number.MAX_VALUE;return this};prototype.set=function(x1,y1,x2,y2){this.x1=x1;this.y1=y1;this.x2=x2;this.y2=y2;return this};prototype.add=function(x,y){if(xthis.x2)this.x2=x;if(y>this.y2)this.y2=y;return this};prototype.expand=function(d){this.x1-=d;this.y1-=d;this.x2+=d;this.y2+=d;return this};prototype.round=function(){this.x1=Math.floor(this.x1);this.y1=Math.floor(this.y1);this.x2=Math.ceil(this.x2);this.y2=Math.ceil(this.y2);return this};prototype.translate=function(dx,dy){this.x1+=dx;this.x2+=dx;this.y1+=dy;this.y2+=dy;return this};prototype.rotate=function(angle,x,y){var cos=Math.cos(angle),sin=Math.sin(angle),cx=x-x*cos+y*sin,cy=y-x*sin-y*cos,x1=this.x1,x2=this.x2,y1=this.y1,y2=this.y2;return this.clear().add(cos*x1-sin*y1+cx,sin*x1+cos*y1+cy).add(cos*x1-sin*y2+cx,sin*x1+cos*y2+cy).add(cos*x2-sin*y1+cx,sin*x2+cos*y1+cy).add(cos*x2-sin*y2+cx,sin*x2+cos*y2+cy)};prototype.union=function(b){if(b.x1this.x2)this.x2=b.x2;if(b.y2>this.y2)this.y2=b.y2;return this};prototype.encloses=function(b){return b&&this.x1<=b.x1&&this.x2>=b.x2&&this.y1<=b.y1&&this.y2>=b.y2};prototype.intersects=function(b){return b&&!(this.x2b.x2||this.y2b.y2)};prototype.contains=function(x,y){return!(xthis.x2||ythis.y2)};prototype.width=function(){return this.x2-this.x1};prototype.height=function(){return this.y2-this.y1};return bounds}();vg.Gradient=function(){function gradient(type){this.id="grad_"+vg_gradient_id++;this.type=type||"linear";this.stops=[];this.x1=0;this.x2=1;this.y1=0;this.y2=0}var prototype=gradient.prototype;prototype.stop=function(offset,color){this.stops.push({offset:offset,color:color});return this};return gradient}();var vg_gradient_id=0;vg.canvas={};vg.canvas.path=function(){var cmdLength={m:2,l:2,h:1,v:1,c:6,s:4,q:4,t:2,a:7},re=[/([MLHVCSQTAZmlhvcsqtaz])/g,/###/,/(\d)-/g,/\s|,|###/];function parse(path){var result=[],currentPath,chunks,parsed;path=path.slice().replace(re[0],"###$1").split(re[1]).slice(1);for(var i=0,j,chunksParsed,len=path.length;icommandLength){for(var k=1,klen=chunksParsed.length;k1){pl=Math.sqrt(pl);rx*=pl;ry*=pl}var a00=cos_th/rx;var a01=sin_th/rx;var a10=-sin_th/ry;var a11=cos_th/ry;var x0=a00*ox+a01*oy;var y0=a10*ox+a11*oy;var x1=a00*x+a01*y;var y1=a10*x+a11*y;var d=(x1-x0)*(x1-x0)+(y1-y0)*(y1-y0);var sfactor_sq=1/d-.25;if(sfactor_sq<0)sfactor_sq=0;var sfactor=Math.sqrt(sfactor_sq);if(sweep==large)sfactor=-sfactor;var xc=.5*(x0+x1)-sfactor*(y1-y0);var yc=.5*(y0+y1)+sfactor*(x1-x0);var th0=Math.atan2(y0-yc,x0-xc);var th1=Math.atan2(y1-yc,x1-xc);var th_arc=th1-th0;if(th_arc<0&&sweep==1){th_arc+=2*Math.PI}else if(th_arc>0&&sweep==0){th_arc-=2*Math.PI}var segments=Math.ceil(Math.abs(th_arc/(Math.PI*.5+.001)));var result=[];for(var i=0;i0){g.globalAlpha=opac*(o.strokeOpacity==null?1:o.strokeOpacity);g.strokeStyle=color(g,o,stroke);g.lineWidth=lw;g.lineCap=(lc=o.strokeCap)!=null?lc:vg.config.render.lineCap;g.vgLineDash(o.strokeDash||null);g.vgLineDashOffset(o.strokeDashOffset||0);g.stroke()}}}function drawPathAll(path,g,scene,bounds){var i,len,item;for(i=0,len=scene.items.length;i0){g.globalAlpha=opac*(o.strokeOpacity==null?1:o.strokeOpacity);g.strokeStyle=color(g,o,stroke);g.lineWidth=lw;g.lineCap=(lc=o.strokeCap)!=null?lc:vg.config.render.lineCap;g.vgLineDash(o.strokeDash||null);g.vgLineDashOffset(o.strokeDashOffset||0);g.strokeRect(x,y,w,h)}}}}function drawRule(g,scene,bounds){if(!scene.items.length)return;var items=scene.items,o,stroke,opac,lc,lw,x1,y1,x2,y2;for(var i=0,len=items.length;i0){g.globalAlpha=opac*(o.strokeOpacity==null?1:o.strokeOpacity);g.strokeStyle=color(g,o,stroke);g.lineWidth=lw;g.lineCap=(lc=o.strokeCap)!=null?lc:vg.config.render.lineCap;g.vgLineDash(o.strokeDash||null);g.vgLineDashOffset(o.strokeDashOffset||0);g.beginPath();g.moveTo(x1,y1);g.lineTo(x2,y2);g.stroke()}}}}function drawImage(g,scene,bounds){if(!scene.items.length)return;var renderer=this,items=scene.items,o;for(var i=0,len=items.length;i0){g.globalAlpha=opac*(o.strokeOpacity==null?1:o.strokeOpacity);g.strokeStyle=color(o,stroke);g.lineWidth=lw;g.strokeText(o.text,x,y)}}if(o.angle)g.restore()}}function drawAll(pathFunc){return function(g,scene,bounds){drawPathAll(pathFunc,g,scene,bounds)}}function drawOne(pathFunc){return function(g,scene,bounds){if(!scene.items.length)return;if(bounds&&!bounds.intersects(scene.items[0].bounds))return;drawPathOne(pathFunc,g,scene.items[0],scene.items)}}function drawGroup(g,scene,bounds){if(!scene.items.length)return;var items=scene.items,group,axes,legends,renderer=this,gx,gy,gb,i,n,j,m;drawRect(g,scene,bounds);for(i=0,n=items.length;i=0;){group=items[i];dx=group.x||0;dy=group.y||0;g.save();g.translate(dx,dy);for(j=group.items.length;--j>=0;){subscene=group.items[j];if(subscene.interactive===false)continue;hit=handler.pick(subscene,x,y,gx-dx,gy-dy);if(hit){g.restore();return hit}}g.restore()}return scene.interactive?pickAll(hitTests.rect,g,scene,x,y,gx,gy):false}function pickAll(test,g,scene,x,y,gx,gy){if(!scene.items.length)return false;var o,b,i;if(g._ratio!==1){x*=g._ratio;y*=g._ratio}for(i=scene.items.length;--i>=0;){o=scene.items[i];b=o.bounds;if(b&&!b.contains(gx,gy)||!b)continue;if(test(g,o,x,y,gx,gy))return o}return false}function pickArea(g,scene,x,y,gx,gy){if(!scene.items.length)return false;var items=scene.items,o,b,i,di,dd,od,dx,dy;b=items[0].bounds;if(b&&!b.contains(gx,gy))return false;if(g._ratio!==1){x*=g._ratio;y*=g._ratio}if(!hitTests.area(g,items,x,y))return false;return items[0]}function pickLine(g,scene,x,y,gx,gy){if(!scene.items.length)return false;var items=scene.items,o,b,i,di,dd,od,dx,dy;b=items[0].bounds;if(b&&!b.contains(gx,gy))return false;if(g._ratio!==1){x*=g._ratio;y*=g._ratio}if(!hitTests.line(g,items,x,y))return false;return items[0]}function pick(test){return function(g,scene,x,y,gx,gy){return pickAll(test,g,scene,x,y,gx,gy)}}function textHit(g,o,x,y,gx,gy){if(!o.fontSize)return false;if(!o.angle)return true;var b=vg.scene.bounds.text(o,tmpBounds,true),a=-o.angle*Math.PI/180,cos=Math.cos(a),sin=Math.sin(a),x=o.x,y=o.y,px=cos*gx-sin*gy+(x-x*cos+y*sin),py=sin*gx+cos*gy+(y-x*sin-y*cos);return b.contains(px,py)}var hitTests={text:textHit,rect:function(g,o,x,y){return true},image:function(g,o,x,y){return true},rule:function(g,o,x,y){if(!g.isPointInStroke)return false;ruleStroke(g,o);return g.isPointInStroke(x,y)},line:function(g,s,x,y){if(!g.isPointInStroke)return false;lineStroke(g,s);return g.isPointInStroke(x,y)},arc:function(g,o,x,y){arcPath(g,o);return g.isPointInPath(x,y)},area:function(g,s,x,y){areaPath(g,s);return g.isPointInPath(x,y)},path:function(g,o,x,y){pathPath(g,o);return g.isPointInPath(x,y)},symbol:function(g,o,x,y){symbolPath(g,o);return g.isPointInPath(x,y)}};return{draw:{group:drawGroup,area:drawOne(areaPath),line:drawOne(linePath),arc:drawAll(arcPath),path:drawAll(pathPath),symbol:drawAll(symbolPath),rect:drawRect,rule:drawRule,text:drawText,image:drawImage,drawOne:drawOne,drawAll:drawAll},pick:{group:pickGroup,area:pickArea,line:pickLine,arc:pick(hitTests.arc),path:pick(hitTests.path),symbol:pick(hitTests.symbol),rect:pick(hitTests.rect),rule:pick(hitTests.rule),text:pick(hitTests.text),image:pick(hitTests.image),pickAll:pickAll}}}();vg.canvas.Renderer=function(){var renderer=function(){this._ctx=null;this._el=null;this._imgload=0};var prototype=renderer.prototype;prototype.initialize=function(el,width,height,pad){this._el=el;if(!el)return this;var canvas=d3.select(el).selectAll("canvas.marks").data([1]);canvas.enter().append("canvas").attr("class","marks");canvas.exit().remove();return this.resize(width,height,pad)};prototype.resize=function(width,height,pad){this._width=width;this._height=height;this._padding=pad;if(this._el){var canvas=d3.select(this._el).select("canvas.marks");canvas.attr("width",width+pad.left+pad.right).attr("height",height+pad.top+pad.bottom);var s;this._ctx=canvas.node().getContext("2d");this._ctx._ratio=s=scaleCanvas(canvas.node(),this._ctx)||1;this._ctx.setTransform(s,0,0,s,s*pad.left,s*pad.top)}initializeLineDash(this._ctx);return this};function scaleCanvas(canvas,ctx){var devicePixelRatio=window.devicePixelRatio||1,backingStoreRatio=ctx.webkitBackingStorePixelRatio||ctx.mozBackingStorePixelRatio||ctx.msBackingStorePixelRatio||ctx.oBackingStorePixelRatio||ctx.backingStorePixelRatio||1,ratio=devicePixelRatio/backingStoreRatio;if(devicePixelRatio!==backingStoreRatio){var w=canvas.width,h=canvas.height;canvas.setAttribute("width",w*ratio);canvas.setAttribute("height",h*ratio);canvas.style.width=w+"px";canvas.style.height=h+"px"}return ratio}function initializeLineDash(ctx){if(ctx.vgLineDash)return;var NODASH=[];if(ctx.setLineDash){ctx.vgLineDash=function(dash){this.setLineDash(dash||NODASH)};ctx.vgLineDashOffset=function(off){this.lineDashOffset=off}}else if(ctx.webkitLineDash!==undefined){ctx.vgLineDash=function(dash){this.webkitLineDash=dash||NODASH};ctx.vgLineDashOffset=function(off){this.webkitLineDashOffset=off}}else if(ctx.mozDash!==undefined){ctx.vgLineDash=function(dash){this.mozDash=dash};ctx.vgLineDashOffset=function(off){}}else{ctx.vgLineDash=function(dash){};ctx.vgLineDashOffset=function(off){}}}prototype.context=function(ctx){if(ctx){this._ctx=ctx;return this}else return this._ctx};prototype.element=function(){return this._el};prototype.pendingImages=function(){return this._imgload};function translatedBounds(item,bounds){var b=new vg.Bounds(bounds);while((item=item.mark.group)!=null){b.translate(item.x||0,item.y||0)}return b}function getBounds(items){return!items?null:vg.array(items).reduce(function(b,item){return b.union(translatedBounds(item,item.bounds)).union(translatedBounds(item,item["bounds:prev"]))},new vg.Bounds)}function setBounds(g,bounds){var bbox=null;if(bounds){bbox=new vg.Bounds(bounds).round();g.beginPath();g.rect(bbox.x1,bbox.y1,bbox.width(),bbox.height());g.clip()}return bbox}prototype.render=function(scene,items){var g=this._ctx,pad=this._padding,w=this._width+pad.left+pad.right,h=this._height+pad.top+pad.bottom,bb=null,bb2;this._scene=scene;g.save();bb=setBounds(g,getBounds(items));g.clearRect(-pad.left,-pad.top,w,h);this.draw(g,scene,bb);if(items){g.restore();g.save();bb2=setBounds(g,getBounds(items));if(!bb.encloses(bb2)){g.clearRect(-pad.left,-pad.top,w,h);this.draw(g,scene,bb2)}}g.restore();this._scene=null};prototype.draw=function(ctx,scene,bounds){var marktype=scene.marktype,renderer=vg.canvas.marks.draw[marktype];renderer.call(this,ctx,scene,bounds)};prototype.renderAsync=function(scene){var renderer=this;if(renderer._async_id){clearTimeout(renderer._async_id)}renderer._async_id=setTimeout(function(){renderer.render(scene);delete renderer._async_id},50)};prototype.loadImage=function(uri){var renderer=this,scene=renderer._scene,image=null,url;renderer._imgload+=1;
if(vg.config.isNode){image=new(require("canvas").Image);vg.data.load(uri,function(err,data){if(err){vg.error(err);return}image.src=data;image.loaded=true;renderer._imgload-=1})}else{image=new Image;url=vg.config.baseURL+uri;image.onload=function(){vg.log("LOAD IMAGE: "+url);image.loaded=true;renderer._imgload-=1;renderer.renderAsync(scene)};image.src=url}return image};return renderer}();vg.canvas.Handler=function(){var handler=function(el,model){this._active=null;this._handlers={};if(el)this.initialize(el);if(model)this.model(model)};var prototype=handler.prototype;prototype.initialize=function(el,pad,obj){this._el=d3.select(el).node();this._canvas=d3.select(el).select("canvas.marks").node();this._padding=pad;this._obj=obj||null;var canvas=this._canvas,that=this;events.forEach(function(type){canvas.addEventListener(type,function(evt){prototype[type].call(that,evt)})});return this};prototype.padding=function(pad){this._padding=pad;return this};prototype.model=function(model){if(!arguments.length)return this._model;this._model=model;return this};prototype.handlers=function(){var h=this._handlers;return vg.keys(h).reduce(function(a,k){return h[k].reduce(function(a,x){return a.push(x),a},a)},[])};var events=["mousedown","mouseup","click","dblclick","wheel","keydown","keypress","keyup","mousewheel"];events.forEach(function(type){prototype[type]=function(evt){this.fire(type,evt)}});events.push("mousemove");events.push("mouseout");function eventName(name){var i=name.indexOf(".");return i<0?name:name.slice(0,i)}prototype.mousemove=function(evt){var pad=this._padding,b=evt.target.getBoundingClientRect(),x=evt.clientX-b.left,y=evt.clientY-b.top,a=this._active,p=this.pick(this._model.scene(),x,y,x-pad.left,y-pad.top);if(p===a){this.fire("mousemove",evt);return}else if(a){this.fire("mouseout",evt)}this._active=p;if(p){this.fire("mouseover",evt)}};prototype.mouseout=function(evt){if(this._active){this.fire("mouseout",evt)}this._active=null};prototype.DOMMouseScroll=function(evt){this.fire("mousewheel",evt)};prototype.fire=function(type,evt){var a=this._active,h=this._handlers[type];if(a&&h){for(var i=0,len=h.length;i=0;){if(h[i].type!==type)continue;if(!handler||h[i].handler===handler)h.splice(i,1)}return this};prototype.context=function(){return this._canvas.getContext("2d")};prototype.pick=function(scene,x,y,gx,gy){var g=this.context(),marktype=scene.marktype,picker=vg.canvas.marks.pick[marktype];return picker.call(this,g,scene,x,y,gx,gy)};return handler}();vg.svg={};vg.svg.marks=function(){function x(o){return o.x||0}function y(o){return o.y||0}function yh(o){return o.y+o.height||0}function key(o){return o.key}function size(o){return o.size==null?100:o.size}function shape(o){return o.shape||"circle"}var arc_path=d3.svg.arc(),area_path=d3.svg.area().x(x).y1(y).y0(yh),line_path=d3.svg.line().x(x).y(y),symbol_path=d3.svg.symbol().type(shape).size(size);var mark_id=0,clip_id=0;var textAlign={left:"start",center:"middle",right:"end"};var styles={fill:"fill",fillOpacity:"fill-opacity",stroke:"stroke",strokeWidth:"stroke-width",strokeOpacity:"stroke-opacity",strokeCap:"stroke-linecap",strokeDash:"stroke-dasharray",strokeDashOffset:"stroke-dashoffset",opacity:"opacity"};var styleProps=vg.keys(styles);function style(d){var i,n,prop,name,value,o=d.mark?d:d.length?d[0]:null;if(o===null)return;for(i=0,n=styleProps.length;i "+tag,m=p.selectAll(s).data(data),e=m.enter().append(tag);if(notG){p.style("pointer-events",evts);e.each(function(d){if(d.mark)d._svg=this;else if(d.length)d[0]._svg=this})}else{e.append("rect").attr("class","background").style("pointer-events",evts)}m.exit().remove();m.each(attr);if(notG)m.each(style);else p.selectAll(s+" > rect.background").each(group_bg).each(style);return p}function drawGroup(g,scene,index,prefix){var p=drawMark(g,scene,index,prefix||"group_","g",group),c=p.node().childNodes,n=c.length,i,j,m;for(i=0;i=0;){if(h[i].type!==type)continue;if(!handler||h[i].handler===handler){dom.removeEventListener(name,h[i].svg);h.splice(i,1)}}return this};return handler}();vg.data={};vg.data.ingestAll=function(data){return vg.isTree(data)?vg_make_tree(vg.data.ingestTree(data[0],data.children)):data.map(vg.data.ingest)};vg.data.ingest=function(datum,index){return{data:datum,index:index}};vg.data.ingestTree=function(node,children,index){var d=vg.data.ingest(node,index||0),c=node[children],n,i;if(c&&(n=c.length)){d.values=Array(n);for(i=0;i=0)file=file.slice(vg_load_fileProtocol.length);require("fs").readFile(file,callback)}function vg_load_http(url,callback){vg.log("LOAD HTTP: "+url);var req=require("http").request(url,function(res){var pos=0,data=new Buffer(parseInt(res.headers["content-length"],10));res.on("error",function(err){callback(err,null)});res.on("data",function(x){x.copy(data,pos);pos+=x.length});res.on("end",function(){callback(null,data)})});req.on("error",function(err){callback(err)});req.end()}vg.data.read=function(){var formats={},parsers={number:vg.number,"boolean":vg.boolean,date:Date.parse};function read(data,format){var type=format&&format.type||"json";data=formats[type](data,format);if(format&&format.parse)parseValues(data,format.parse);return data}formats.json=function(data,format){var d=vg.isObject(data)?data:JSON.parse(data);if(format&&format.property){d=vg.accessor(format.property)(d)}return d};formats.csv=function(data,format){var d=d3.csv.parse(data);return d};formats.tsv=function(data,format){var d=d3.tsv.parse(data);return d};formats.topojson=function(data,format){if(topojson==null){vg.error("TopoJSON library not loaded.");return[]}var t=vg.isObject(data)?data:JSON.parse(data),obj=[];if(format&&format.feature){obj=(obj=t.objects[format.feature])?topojson.feature(t,obj).features:(vg.error("Invalid TopoJSON object: "+format.feature),[])}else if(format&&format.mesh){obj=(obj=t.objects[format.mesh])?[topojson.mesh(t,t.objects[format.mesh])]:(vg.error("Invalid TopoJSON object: "+format.mesh),[])}else{vg.error("Missing TopoJSON feature or mesh parameter.")}return obj};formats.treejson=function(data,format){data=vg.isObject(data)?data:JSON.parse(data);return vg.tree(data,format.children)};function parseValues(data,types){var cols=vg.keys(types),p=cols.map(function(col){return parsers[types[col]]}),tree=vg.isTree(data);vg_parseArray(tree?[data]:data,cols,p,tree)}function vg_parseArray(data,cols,p,tree){var d,i,j,len,clen;for(i=0,len=data.length;i0?"|":"")+String(kv)}obj=map[kstr];if(obj===undefined){vals.push(obj=map[kstr]={key:kstr,keys:klist,index:vals.length,values:[]})}obj.values.push(data[i])}if(sort){for(i=0,len=vals.length;ib?1:0});data=[data[~~(list.length/2)]]}else{var idx=vg.array(by);data=data.slice(idx[0],idx[1])}return data}slice.by=function(x){by=x;return slice};slice.field=function(f){field=vg.accessor(f);return slice};return slice};vg.data.sort=function(){var by=null;function sort(data){data=vg.isArray(data)?data:data.values||[];data.sort(by);for(var i=0,n=data.length;ib.x?1:a.zb.z?1:0});for(x=points[0].x,i=0,j=0,k=0,n=points.length;ki)series[i++].push({x:j,y:0});p.x=j;series[i++].push(p)}while(imax)max=v;sum+=v;delta=v-mean;mean=mean+delta/(i+1);M2=M2+delta*(v-mean)}M2=M2/(len-1);var o=vg.isArray(data)?{}:data;if(median){list.sort(vg.numcmp);i=list.length>>1;o[output.median]=list.length%2?list[i]:(list[i-1]+list[i])/2}o[output.count]=len;o[output.min]=min;o[output.max]=max;o[output.sum]=sum;o[output.mean]=mean;o[output.variance]=M2;o[output.stdev]=Math.sqrt(M2);if(assign){list=vg.isArray(data)?data:data.values;v={};v[output.count]=len;v[output.min]=min;v[output.max]=max;v[output.sum]=sum;v[output.mean]=mean;v[output.variance]=M2;v[output.stdev]=Math.sqrt(M2);if(median)v[output.median]=o[output.median];for(i=0,len=list.length;i\~\&\|\?\:\+\-\/\*\%\!\^\,\;\[\]\{\}\(\) ]+)/;return function(x){var tokens=x.split(lexer),t,v,i,n,sq,dq;for(sq=0,dq=0,i=0,n=tokens.length;i0?"\n ":" ";code+="o."+name+" = "+valueRef(name,ref)+";";vars[name]=true}if(vars.x2){if(vars.x){code+="\n if (o.x > o.x2) { "+"var t = o.x; o.x = o.x2; o.x2 = t; };";code+="\n o.width = (o.x2 - o.x);"}else if(vars.width){code+="\n o.x = (o.x2 - o.width);"}else{code+="\n o.x = o.x2;"}}if(vars.y2){if(vars.y){code+="\n if (o.y > o.y2) { "+"var t = o.y; o.y = o.y2; o.y2 = t; };";code+="\n o.height = (o.y2 - o.y);"}else if(vars.height){code+="\n o.y = (o.y2 - o.height);"}else{code+="\n o.y = o.y2;"}}if(hasPath(mark,vars))code+="\n item.touch();";code+="\n if (trans) trans.interpolate(item, o);";try{return Function("item","group","trans",code)}catch(e){vg.error(e);vg.log(code)}}function hasPath(mark,vars){return vars.path||(mark==="area"||mark==="line")&&(vars.x||vars.x2||vars.width||vars.y||vars.y2||vars.height||vars.tension||vars.interpolate)}var GROUP_VARS={width:1,height:1,"mark.group.width":1,"mark.group.height":1};function valueRef(name,ref){if(ref==null)return null;var isColor=name==="fill"||name==="stroke";if(isColor){if(ref.c){return colorRef("hcl",ref.h,ref.c,ref.l)}else if(ref.h||ref.s){return colorRef("hsl",ref.h,ref.s,ref.l)}else if(ref.l||ref.a){return colorRef("lab",ref.l,ref.a,ref.b)}else if(ref.r||ref.g||ref.b){return colorRef("rgb",ref.r,ref.g,ref.b)}}var val="item.datum.data";if(ref.value!==undefined){val=vg.str(ref.value)}if(ref.group!=null){var grp="group.datum";if(vg.isString(ref.group)){grp=GROUP_VARS[ref.group]?"group."+ref.group:"group.datum["+vg.field(ref.group).map(vg.str).join("][")+"]"}}if(ref.field!=null){if(vg.isString(ref.field)){val="item.datum["+vg.field(ref.field).map(vg.str).join("][")+"]";if(ref.group!=null){val="this.accessor("+val+")("+grp+")"}}else{val="this.accessor(group.datum["+vg.field(ref.field.group).map(vg.str).join("][")+"])(item.datum.data)"}}else if(ref.group!=null){val=grp}if(ref.scale!=null){var scale=vg.isString(ref.scale)?vg.str(ref.scale):(ref.scale.group?"group":"item")+".datum["+vg.str(ref.scale.group||ref.scale.field)+"]";scale="group.scales["+scale+"]";val=scale+(ref.band?".rangeBand()":"("+val+")")}val="("+(ref.mult?vg.number(ref.mult)+" * ":"")+val+")"+(ref.offset?" + "+vg.number(ref.offset):"");return val}function colorRef(type,x,y,z){var xx=x?valueRef("",x):vg.config.color[type][0],yy=y?valueRef("",y):vg.config.color[type][1],zz=z?valueRef("",z):vg.config.color[type][2];return"(this.d3."+type+"("+[xx,yy,zz].join(",")+') + "")'}return compile}();vg.parse.scales=function(){var LINEAR="linear",ORDINAL="ordinal",LOG="log",POWER="pow",TIME="time",GROUP_PROPERTY={width:1,height:1};function scales(spec,scales,db,group){return(spec||[]).reduce(function(o,def){var name=def.name,prev=name+":prev";o[name]=scale(def,o[name],db,group);o[prev]=o[prev]||o[name];return o},scales||{})}function scale(def,scale,db,group){var s=instance(def,scale),m=s.type===ORDINAL?ordinal:quantitative,rng=range(def,group),data=vg.values(group.datum);m(def,s,rng,db,data);return s}function instance(def,scale){var type=def.type||LINEAR;if(!scale||type!==scale.type){var ctor=vg.config.scale[type]||d3.scale[type];if(!ctor)vg.error("Unrecognized scale type: "+type);(scale=ctor()).type=scale.type||type;scale.scaleName=def.name}return scale}function ordinal(def,scale,rng,db,data){var domain,refs,values,str;domain=def.domain;if(vg.isArray(domain)){scale.domain(domain)}else if(vg.isObject(domain)){refs=def.domain.fields||vg.array(def.domain);values=refs.reduce(function(values,r){var dat=vg.values(db[r.data]||data),get=vg.accessor(vg.isString(r.field)?r.field:"data."+vg.accessor(r.field.group)(data));return vg.unique(dat,get,values)},[]);if(def.sort)values.sort(vg.cmp);scale.domain(values)}str=typeof rng[0]==="string";if(str||rng.length>2){scale.range(rng)}else if(def.points){scale.rangePoints(rng,def.padding||0)}else if(def.round||def.round===undefined){scale.rangeRoundBands(rng,def.padding||0)}else{scale.rangeBands(rng,def.padding||0)}}function quantitative(def,scale,rng,db,data){var domain,refs,interval,z;domain=[null,null];function extract(ref,min,max,z){var dat=vg.values(db[ref.data]||data);var fields=vg.array(ref.field).map(function(f){return vg.isString(f)?f:"data."+vg.accessor(f.group)(data)});fields.forEach(function(f,i){f=vg.accessor(f);if(min)domain[0]=d3.min([domain[0],d3.min(dat,f)]);if(max)domain[z]=d3.max([domain[z],d3.max(dat,f)])})}if(def.domain!==undefined){if(vg.isArray(def.domain)){domain=def.domain.slice()}else if(vg.isObject(def.domain)){refs=def.domain.fields||vg.array(def.domain);refs.forEach(function(r){extract(r,1,1,1)})}else{domain=def.domain}}z=domain.length-1;if(def.domainMin!==undefined){if(vg.isObject(def.domainMin)){domain[0]=null;refs=def.domainMin.fields||vg.array(def.domainMin);refs.forEach(function(r){extract(r,1,0,z)})}else{domain[0]=def.domainMin}}if(def.domainMax!==undefined){if(vg.isObject(def.domainMax)){domain[z]=null;refs=def.domainMax.fields||vg.array(def.domainMax);refs.forEach(function(r){extract(r,0,1,z)})}else{domain[z]=def.domainMax}}if(def.type!==LOG&&def.type!==TIME&&(def.zero||def.zero===undefined)){domain[0]=Math.min(0,domain[0]);domain[z]=Math.max(0,domain[z])}scale.domain(domain);if(def.range==="height")rng=rng.reverse();scale[def.round&&scale.rangeRound?"rangeRound":"range"](rng);if(def.exponent&&def.type===POWER)scale.exponent(def.exponent);if(def.clamp)scale.clamp(true);if(def.nice){if(def.type===TIME){interval=d3.time[def.nice];if(!interval)vg.error("Unrecognized interval: "+interval);scale.nice(interval)}else{scale.nice()}}}function range(def,group){var rng=[null,null];if(def.range!==undefined){if(typeof def.range==="string"){if(GROUP_PROPERTY[def.range]){rng=[0,group[def.range]]}else if(vg.config.range[def.range]){rng=vg.config.range[def.range]}else{vg.error("Unrecogized range: "+def.range);return rng}}else if(vg.isArray(def.range)){rng=def.range}else{rng=[0,def.range]}}if(def.rangeMin!==undefined){rng[0]=def.rangeMin}if(def.rangeMax!==undefined){rng[rng.length-1]=def.rangeMax}if(def.reverse!==undefined){var rev=def.reverse;if(vg.isObject(rev)){rev=vg.accessor(rev.field)(group.datum)}if(rev)rng=rng.reverse()}return rng}return scales}();vg.parse.spec=function(spec,callback,viewFactory){viewFactory=viewFactory||vg.ViewFactory;function parse(spec){spec=vg.duplicate(spec);var width=spec.width||500,height=spec.height||500,viewport=spec.viewport||null;var defs={width:width,height:height,viewport:viewport,padding:vg.parse.padding(spec.padding),marks:vg.parse.marks(spec,width,height),data:vg.parse.data(spec.data,function(){callback(viewConstructor)})};var viewConstructor=viewFactory(defs)}vg.isObject(spec)?parse(spec):d3.json(spec,function(error,json){error?vg.error(error):parse(json)})};vg.parse.transform=function(def){var tx=vg.data[def.type]();vg.keys(def).forEach(function(k){if(k==="type")return;tx[k](def[k])});return tx};vg.scene={};vg.scene.GROUP="group",vg.scene.ENTER=0,vg.scene.UPDATE=1,vg.scene.EXIT=2;vg.scene.DEFAULT_DATA={sentinel:1};vg.scene.data=function(data,parentData){var DEFAULT=vg.scene.DEFAULT_DATA;data=vg.values(data||parentData||[DEFAULT]);if(data===DEFAULT)data=[DEFAULT];return data};vg.scene.fontString=function(o){return(o.fontStyle?o.fontStyle+" ":"")+(o.fontVariant?o.fontVariant+" ":"")+(o.fontWeight?o.fontWeight+" ":"")+(o.fontSize!=null?o.fontSize:vg.config.render.fontSize)+"px "+(o.font||vg.config.render.font)};vg.scene.Item=function(){function item(mark){this.mark=mark}var prototype=item.prototype;prototype.hasPropertySet=function(name){var props=this.mark.def.properties;return props&&props[name]!=null};prototype.cousin=function(offset,index){if(offset===0)return this;offset=offset||-1;var mark=this.mark,group=mark.group,iidx=index==null?mark.items.indexOf(this):index,midx=group.items.indexOf(mark)+offset;return group.items[midx].items[iidx]};prototype.sibling=function(offset){if(offset===0)return this;offset=offset||-1;var mark=this.mark,iidx=mark.items.indexOf(this)+offset;return mark.items[iidx]};prototype.remove=function(){var item=this,list=item.mark.items,i=list.indexOf(item);if(i>=0)i===list.length-1?list.pop():list.splice(i,1);return item};prototype.touch=function(){if(this.cache)this.cache=null;if(this.mark.cache)this.mark.cache=null};return item}();vg.scene.item=function(mark){return new vg.scene.Item(mark)};vg.scene.visit=function(node,func){var i,n,items;if(func(node))return true;if(items=node.items){for(i=0,n=items.length;i0)s+="|";s+=String(f[i](d))}return s}}return build}();vg.scene.bounds=function(){var parse=vg.canvas.path.parse,boundPath=vg.canvas.path.bounds,areaPath=vg.canvas.path.area,linePath=vg.canvas.path.line,halfpi=Math.PI/2,sqrt3=Math.sqrt(3),tan30=Math.tan(30*Math.PI/180),gfx=null;function context(){return gfx||(gfx=(vg.config.isNode?new(require("canvas"))(1,1):d3.select("body").append("canvas").attr("class","vega_hidden").attr("width",1).attr("height",1).style("display","none").node()).getContext("2d"))}function pathBounds(o,path,bounds){if(path==null){bounds.set(0,0,0,0)}else{boundPath(path,bounds);if(o.stroke&&o.opacity!==0&&o.strokeWidth>0){bounds.expand(o.strokeWidth)}}return bounds}function path(o,bounds){var p=o.path?o["path:parsed"]||(o["path:parsed"]=parse(o.path)):null;return pathBounds(o,p,bounds)}function area(o,bounds){var items=o.mark.items,o=items[0];var p=o["path:parsed"]||(o["path:parsed"]=parse(areaPath(items)));return pathBounds(items[0],p,bounds)}function line(o,bounds){var items=o.mark.items,o=items[0];var p=o["path:parsed"]||(o["path:parsed"]=parse(linePath(items)));return pathBounds(items[0],p,bounds)}function rect(o,bounds){var x=o.x||0,y=o.y||0,w=x+o.width||0,h=y+o.height||0;bounds.set(x,y,w,h);if(o.stroke&&o.opacity!==0&&o.strokeWidth>0){bounds.expand(o.strokeWidth)}return bounds}function image(o,bounds){var w=o.width||0,h=o.height||0,x=(o.x||0)-(o.align==="center"?w/2:o.align==="right"?w:0),y=(o.y||0)-(o.baseline==="middle"?h/2:o.baseline==="bottom"?h:0);return bounds.set(x,y,x+w,y+h)}function rule(o,bounds){var x1,y1;bounds.set(x1=o.x||0,y1=o.y||0,o.x2!=null?o.x2:x1,o.y2!=null?o.y2:y1);if(o.stroke&&o.opacity!==0&&o.strokeWidth>0){bounds.expand(o.strokeWidth)}return bounds}function arc(o,bounds){var cx=o.x||0,cy=o.y||0,ir=o.innerRadius||0,or=o.outerRadius||0,sa=(o.startAngle||0)-halfpi,ea=(o.endAngle||0)-halfpi,xmin=Infinity,xmax=-Infinity,ymin=Infinity,ymax=-Infinity,a,i,n,x,y,ix,iy,ox,oy;var angles=[sa,ea],s=sa-sa%halfpi;for(i=0;i<4&&s0){bounds.expand(o.strokeWidth)}return bounds}function symbol(o,bounds){var size=o.size!=null?o.size:100,x=o.x||0,y=o.y||0,r,t,rx,ry;switch(o.shape){case"cross":r=Math.sqrt(size/5)/2;t=3*r;bounds.set(x-t,y-r,x+t,y+r);break;case"diamond":ry=Math.sqrt(size/(2*tan30));rx=ry*tan30;bounds.set(x-rx,y-ry,x+rx,y+ry);break;case"square":t=Math.sqrt(size);r=t/2;bounds.set(x-r,y-r,x+r,y+r);break;case"triangle-down":rx=Math.sqrt(size/sqrt3);ry=rx*sqrt3/2;bounds.set(x-rx,y-ry,x+rx,y+ry);break;case"triangle-up":rx=Math.sqrt(size/sqrt3);ry=rx*sqrt3/2;bounds.set(x-rx,y-ry,x+rx,y+ry);break;default:r=Math.sqrt(size/Math.PI);bounds.set(x-r,y-r,x+r,y+r)}if(o.stroke&&o.opacity!==0&&o.strokeWidth>0){bounds.expand(o.strokeWidth)}return bounds}function text(o,bounds,noRotate){var x=(o.x||0)+(o.dx||0),y=(o.y||0)+(o.dy||0),h=o.fontSize||vg.config.render.fontSize,a=o.align,b=o.baseline,g=context(),w;g.font=vg.scene.fontString(o);g.textAlign=a||"left";g.textBaseline=b||"alphabetic";w=g.measureText(o.text||"").width;if(a==="center"){x=x-w/2}else if(a==="right"){x=x-w}else{}if(b==="top"){y=y+h/5}else if(b==="bottom"){y=y-h}else if(b==="middle"){y=y-h/2+h/10}else{y=y-4*h/5}bounds.set(x,y,x+w,y+h);if(o.angle&&!noRotate){bounds.rotate(o.angle*Math.PI/180,o.x||0,o.y||0)}return bounds.expand(noRotate?0:1)}function group(g,bounds,includeLegends){var axes=g.axisItems||[],legends=g.legendItems||[],j,m;for(j=0,m=axes.length;j1)f=1;e=curr.ease(f);for(i=0,n=curr.length;i1?+y:tickMajorSize,end=n>0?+arguments[n]:tickMajorSize;if(tickMajorSize!==major||tickMinorSize!==minor||tickEndSize!==end){reset()}tickMajorSize=major;tickMinorSize=minor;tickEndSize=end;return axis};axis.tickSubdivide=function(x){if(!arguments.length)return tickSubdivide;tickSubdivide=+x;return axis};axis.offset=function(x){if(!arguments.length)return offset;offset=vg.isObject(x)?x:+x;return axis};axis.tickPadding=function(x){if(!arguments.length)return tickPadding;if(tickPadding!==+x){tickPadding=+x;reset()}return axis};axis.titleOffset=function(x){if(!arguments.length)return titleOffset;if(titleOffset!==+x){titleOffset=+x;reset()}return axis};axis.layer=function(x){if(!arguments.length)return layer;if(layer!==x){layer=x;reset()}return axis};axis.grid=function(x){if(!arguments.length)return grid;if(grid!==x){grid=x;reset()}return axis};axis.gridLineProperties=function(x){if(!arguments.length)return gridLineStyle;if(gridLineStyle!==x){gridLineStyle=x}return axis};axis.majorTickProperties=function(x){if(!arguments.length)return majorTickStyle;if(majorTickStyle!==x){majorTickStyle=x}return axis};axis.minorTickProperties=function(x){if(!arguments.length)return minorTickStyle;if(minorTickStyle!==x){minorTickStyle=x}return axis};axis.tickLabelProperties=function(x){if(!arguments.length)return tickLabelStyle;if(tickLabelStyle!==x){tickLabelStyle=x}return axis};axis.titleProperties=function(x){if(!arguments.length)return titleStyle;if(titleStyle!==x){titleStyle=x}return axis};axis.domainProperties=function(x){if(!arguments.length)return domainStyle;if(domainStyle!==x){domainStyle=x}return axis};axis.reset=function(){reset()};return axis};var vg_axisOrients={top:1,right:1,bottom:1,left:1};function vg_axisSubdivide(scale,ticks,m){subticks=[];if(m&&ticks.length>1){var extent=vg_axisScaleExtent(scale.domain()),subticks,i=-1,n=ticks.length,d=(ticks[1]-ticks[0])/++m,j,v;while(++i0;){if((v=+ticks[i]-j*d)>=extent[0]){subticks.push(v)}}}for(--i,j=0;++j0)a[i]=a[i-1]+z[i-1]/2+pad;return a[i]+=b/2,a},[0]).map(Math.round)}else{offset=Math.round(Math.sqrt(vg.config.legend.symbolSize));range=spacing||(fs=labelStyle.fontSize)&&fs.value+pad||vg.config.legend.labelFontSize+pad;range=domain.map(function(d,i){return Math.round(offset/2+i*range)})}var sz=padding,ts;if(title){ts=titleStyle.fontSize;sz+=5+(ts&&ts.value||vg.config.legend.titleFontSize)}for(var i=0,n=range.length;ithis._width?Math.ceil(+b.x2-this._width)+inset:0,b=b.y2>this._height?Math.ceil(+b.y2-this._height)+inset:0;pad={left:l,top:t,right:r,bottom:b};if(this._strict){this._autopad=0;this._padding=pad;this._width=Math.max(0,this.__width-(l+r));this._height=Math.max(0,this.__height-(t+b));this._model.width(this._width);this._model.height(this._height);if(this._el)this.initialize(this._el.parentNode);this.update({props:"enter"}).update({props:"update"})}else{this.padding(pad).update(opt)}return this};prototype.viewport=function(size){if(!arguments.length)return this._viewport;if(this._viewport!==size){this._viewport=size;if(this._el)this.initialize(this._el.parentNode)}return this};prototype.renderer=function(type){if(!arguments.length)return this._io;if(type==="canvas")type=vg.canvas;if(type==="svg")type=vg.svg;if(this._io!==type){this._io=type;this._renderer=null;if(this._el)this.initialize(this._el.parentNode);if(this._build)this.render()}return this};prototype.defs=function(defs){if(!arguments.length)return this._model.defs();this._model.defs(defs);return this};prototype.data=function(data){if(!arguments.length)return this._model.data();var ingest=vg.keys(data).reduce(function(d,k){return d[k]=vg.data.ingestAll(data[k]),d},{});this._model.data(ingest);this._build=false;return this};prototype.model=function(model){if(!arguments.length)return this._model;if(this._model!==model){this._model=model;if(this._handler)this._handler.model(model)}return this};prototype.initialize=function(el){var v=this,prevHandler,w=v._width,h=v._height,pad=v._padding;d3.select(el).select("div.vega").remove();this._el=el=d3.select(el).append("div").attr("class","vega").style("position","relative").node();if(v._viewport){d3.select(el).style("width",(v._viewport[0]||w)+"px").style("height",(v._viewport[1]||h)+"px").style("overflow","auto")}v._renderer=(v._renderer||new this._io.Renderer).initialize(el,w,h,pad);prevHandler=v._handler;v._handler=(new this._io.Handler).initialize(el,pad,v).model(v._model);if(prevHandler){prevHandler.handlers().forEach(function(h){v._handler.on(h.type,h.handler)})}return this};prototype.render=function(items){this._renderer.render(this._model.scene(),items);return this};prototype.on=function(){this._handler.on.apply(this._handler,arguments);return this};prototype.off=function(){this._handler.off.apply(this._handler,arguments);return this};prototype.update=function(opt){opt=opt||{};var view=this,trans=opt.duration?vg.scene.transition(opt.duration,opt.ease):null;view._build=view._build||(view._model.build(),true);view._model.encode(trans,opt.props,opt.items);if(trans){trans.start(function(items){view._renderer.render(view._model.scene(),items)})}else view.render(opt.items);return view.autopad(opt)};return view}();vg.ViewFactory=function(defs){return function(opt){opt=opt||{};var v=(new vg.View).width(defs.width).height(defs.height).padding(defs.padding).viewport(defs.viewport).renderer(opt.renderer||"canvas").defs(defs);if(defs.data.load)v.data(defs.data.load);if(opt.data)v.data(opt.data);if(opt.el)v.initialize(opt.el);if(opt.hover!==false){v.on("mouseover",function(evt,item){if(item.hasPropertySet("hover")){this.update({props:"hover",items:item})}}).on("mouseout",function(evt,item){if(item.hasPropertySet("hover")){this.update({props:"update",items:item})}})}return v}};vg.Spec=function(){var spec=function(s){this.spec={width:500,height:500,padding:0,data:[],scales:[],axes:[],marks:[]};if(s)vg.extend(this.spec,s)};var prototype=spec.prototype;prototype.width=function(w){this.spec.width=w;return this};prototype.height=function(h){this.spec.height=h;return this};prototype.padding=function(p){this.spec.padding=p;return this};prototype.viewport=function(v){this.spec.viewport=v;return this};prototype.data=function(name,params){if(!params)params=vg.isString(name)?{name:name}:name;else params.name=name;this.spec.data.push(params);return this};prototype.scale=function(name,params){if(!params)params=vg.isString(name)?{name:name}:name;else params.name=name;this.spec.scales.push(params);return this};prototype.axis=function(params){this.spec.axes.push(params);return this};prototype.mark=function(type,mark){if(!mark)mark={type:type};else mark.type=type;mark.properties={};this.spec.marks.push(mark);var that=this;return{from:function(name,obj){mark.from=obj?(obj.data=name,obj):vg.isString(name)?{data:name}:name;return this},prop:function(name,obj){mark.properties[name]=vg.keys(obj).reduce(function(o,k){var v=obj[k];return o[k]=vg.isObject(v)?v:{value:v},o},{});return this},done:function(){return that}}};prototype.parse=function(callback){vg.parse.spec(this.spec,callback)};prototype.json=function(){return this.spec};return spec}();vg.spec=function(s){return new vg.Spec(s)};vg.headless={};vg.headless.View=function(){var view=function(width,height,pad,type){this._canvas=null;this._type=type;this._el="body";this._build=false;this._model=new vg.Model;this._width=this.__width=width||500;this._height=this.__height=height||500;this._autopad=1;this._padding=pad||{top:0,left:0,bottom:0,right:0};this._renderer=new vg[type].Renderer;this.initialize()};var prototype=view.prototype;prototype.el=function(el){if(!arguments.length)return this._el;if(this._el!==el){this._el=el;this.initialize()}return this};prototype.width=function(width){if(!arguments.length)return this._width;if(this._width!==width){this._width=width;this.initialize();this._model.width(width)}return this};prototype.height=function(height){if(!arguments.length)return this._height;if(this._height!==height){this._height=height;this.initialize();this._model.height(this._height)}return this};prototype.padding=function(pad){if(!arguments.length)return this._padding;if(this._padding!==pad){if(vg.isString(pad)){this._autopad=1;this._padding={top:0,left:0,bottom:0,right:0};this._strict=pad==="strict"}else{this._autopad=0;this._padding=pad;this._strict=false}this.initialize()}return this};prototype.autopad=function(opt){if(this._autopad<1)return this;else this._autopad=0;var pad=this._padding,b=this._model.scene().bounds,inset=vg.config.autopadInset,l=b.x1<0?Math.ceil(-b.x1)+inset:0,t=b.y1<0?Math.ceil(-b.y1)+inset:0,r=b.x2>this._width?Math.ceil(+b.x2-this._width)+inset:0,b=b.y2>this._height?Math.ceil(+b.y2-this._height)+inset:0;pad={left:l,top:t,right:r,bottom:b};if(this._strict){this._autopad=0;this._padding=pad;this._width=Math.max(0,this.__width-(l+r));this._height=Math.max(0,this.__height-(t+b));this._model.width(this._width);this._model.height(this._height);if(this._el)this.initialize();this.update({props:"enter"}).update({props:"update"})}else{this.padding(pad).update(opt)}return this};prototype.viewport=function(){if(!arguments.length)return null;return this};prototype.defs=function(defs){if(!arguments.length)return this._model.defs();this._model.defs(defs);return this};prototype.data=function(data){if(!arguments.length)return this._model.data();var ingest=vg.keys(data).reduce(function(d,k){return d[k]=vg.data.ingestAll(data[k]),d},{});this._model.data(ingest);this._build=false;return this};prototype.renderer=function(){return this._renderer};prototype.canvas=function(){return this._canvas};prototype.canvasAsync=function(callback){var r=this._renderer,view=this;function wait(){if(r.pendingImages()===0){view.render();callback(view._canvas)}else{setTimeout(wait,10)}}r.pendingImages()>0?wait():callback(this._canvas)};prototype.svg=function(){if(this._type!=="svg")return null;var p=this._padding,w=this._width+(p?p.left+p.right:0),h=this._height+(p?p.top+p.bottom:0);var svg=d3.select(this._el).select("svg").node().innerHTML.replace(/ href=/g," xlink:href=");return""+svg+" "};prototype.initialize=function(){var w=this._width,h=this._height,pad=this._padding;if(this._type==="svg"){this.initSVG(w,h,pad)}else{this.initCanvas(w,h,pad)}return this};prototype.initCanvas=function(w,h,pad){var Canvas=require("canvas"),tw=w+pad.left+pad.right,th=h+pad.top+pad.bottom,canvas=this._canvas=new Canvas(tw,th),ctx=canvas.getContext("2d");ctx.setTransform(1,0,0,1,pad.left,pad.top);this._renderer.context(ctx);this._renderer.resize(w,h,pad)};prototype.initSVG=function(w,h,pad){var tw=w+pad.left+pad.right,th=h+pad.top+pad.bottom;this._renderer.initialize(this._el,w,h,pad)};prototype.render=function(items){this._renderer.render(this._model.scene(),items);return this};prototype.update=function(opt){opt=opt||{};var view=this;view._build=view._build||(view._model.build(),true);view._model.encode(null,opt.props,opt.items);view.render(opt.items);return view.autopad(opt)};return view}();vg.headless.View.Factory=function(defs){return function(opt){opt=opt||{};var w=defs.width,h=defs.height,p=defs.padding,r=opt.renderer||"canvas",v=new vg.headless.View(w,h,p,r).defs(defs);if(defs.data.load)v.data(defs.data.load);if(opt.data)v.data(opt.data);return v}};vg.headless.render=function(opt,callback){function draw(chart){try{var view=chart({data:opt.data,renderer:opt.renderer}).update();if(opt.renderer==="svg"){callback(null,{svg:view.svg()})}else{view.canvasAsync(function(canvas){callback(null,{canvas:canvas})})}}catch(err){callback(err,null)}}vg.parse.spec(opt.spec,draw,vg.headless.View.Factory)};return vg}(d3,typeof topojson==="undefined"?null:topojson);
