/***
|''Name:''|MathSVGPlugin|
|''Description:''|This plugin translates a subset of the LaTeX math notation to MathML with a customisable image fallback when MathML is not supported. It also provides an easy way to produce mathematical SVG graphics with dynamical features and animation.|
|''Version:''|1.4.1|
|''Date:''|2010-04-01|
|''Source:''|http://www.math.ist.utl.pt/~psoares/MathSVG.html|
|''Author:''|Paulo Soares|
|''License:''|[[GNU Lesser General Public License|http://www.gnu.org/licences/lgpl.html]]|
|''~CoreVersion:''|2.5.0|
!Original copyright notice
{{{
ASCIIMathML.js
==============
Version 2.1 Oct 8, 2008, (c) Peter Jipsen http://www.chapman.edu/~jipsen
This version extends ASCIIMathML.js with LaTeXMathML.js and ASCIIsvg.js.
Latest version at http://www.chapman.edu/~jipsen/mathml/ASCIIMathML.js
If you use it on a webpage, please send the URL to jipsen@chapman.edu
The LaTeXMathML modifications were made by Douglas Woodall, June 2006.
(for details see header on the LaTeXMathML part in middle of file)
Extensive clean-up and improvements by Paulo Soares, Oct 2007.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
(at http://www.gnu.org/licences/lgpl.html) for more details.
}}}
!~MathSVG code (minified)
***/
//{{{
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dy=(0.5*size/SVG.yunitlength)/SVG.factor;for(i=0;i<label.length;i++){options.isLabel="_label"+i;point[0]=p[i][0];point[1]=p[i][1];pos=(poslen>i)?labelpos[i].toUpperCase():pos;if(/E/.test(pos)){point[0]+=dx}if(/W/.test(pos)){point[0]-=dx}if(/N/.test(pos)){point[1]+=dy}if(/S/.test(pos)){point[1]-=dy}options.pos=pos;text(point,label[i],options)}}function line(p,q,options){options=options||{};options.closed=false;options.curve="";path([p,q],options)}function dot(p,options){options=options||{};var direction=getOptions("direction",options);var q=[p[0]+direction[0]/SVG.xunitlength,p[1]+direction[1]/SVG.yunitlength];var st="M"+toSVGPair(p)+" "+toSVGPair(q);var elmt=getSVGElement(options.id,"path");var elem=$(elmt.node);elem.attr("d",st);elem.attr("stroke","none");setMarkers(elem,options);appendSVG(elmt);if(options.label){setLabels([p],options)}}function path(list,options,append){options=options||{};var i,elmt=getSVGElement(options.id,"path");var attr=getOptions(["curve","closed"],options);var len=list.length;if(len>0){var node=$(elmt.node);var st=(append&&!elmt.newEl)?elmt.node.getAttribute("d"):"";st+="M"+toSVGPair(list[0])+" "+attr.curve;for(i=1;i<len;i++){st+=toSVGPair(list[i])+" "}if(attr.closed){st+="Z"}node.attr("d",st);setStrokeAndFill(node,options);if(options.marker){setMarkers(node,options)}appendSVG(elmt);if(options.label){setLabels(list,options)}}}function rotate(id,angle,options){if(!id||!angle){return}var node=$("#"+SVG.id+"_"+id)[0];if(node){options=options||{};var center=options.center?toSVG(options.center):SVG.origin;angle=-angle*180/Math.PI;var transform=node.getAttribute("transform")||"";transform="rotate("+angle+" "+center+") "+(options.replace?"":transform);$(node).attr("transform",transform)}}function translate(id,delta,options){if(!id||!delta){return}var node=$("#"+SVG.id+"_"+id)[0];if(node){options=options||{};delta=toSVG(delta);var transform=node.getAttribute("transform")||"";transform="translate("+(delta[0]-SVG.origin[0])+" "+(SVG.origin[1]+delta[1]-SVG.height)+") "+(options.replace?"":transform);$(node).attr("transform",transform)}}function curve(list,options){options=options||{};options.curve=options.curve||"T";path(list,options)}function circle(center,radius,options){ellipse(center,radius,radius,options)}function loop(p,options){options=options||{};var d=options.direction||[1,0];options.curve="C";options.closed=false;path([p,[p[0]+d[0],p[1]+d[1]],[p[0]-d[1],p[1]+d[0]],p],options)}function arc(options){options=options||{};var start=options.start;var end=options.end;var center=options.center;var startangle=options.startangle;var endangle=options.endangle;var st="M",elmt=getSVGElement(options.id,"path");var attr=getOptions(["largearc","sweep","closed","sector"],options);var radius=options.radius;if(center!=null&&startangle!=null&&endangle!=null&&radius!=null){start=[radius*Math.cos(startangle)+center[0],radius*Math.sin(startangle)+center[1]];end=[radius*Math.cos(endangle)+center[0],radius*Math.sin(endangle)+center[1]]}if(start==null||end==null){return}if(!radius){var v=[end[0]-start[0],end[1]-start[1]];radius=Math.sqrt(v[0]*v[0]+v[1]*v[1])}if(attr.sector){st+=toSVGPair(center)+" "}st+=toSVGPair(start)+" A"+radius*SVG.xunitlength+","+radius*SVG.yunitlength+" 0 "+attr.largearc+","+attr.sweep+" "+toSVGPair(end);if(attr.sector||attr.closed){st+=" z"}var node=$(elmt.node);node.attr("d",st);setStrokeAndFill(node,options);if(options.marker){setMarkers(node,options)}appendSVG(elmt);if(options.label){setLabels([start,end],options)}}function sector(options){if(!options.center||!options.startangle||!options.endangle||!options.radius){return}options.sector=true;arc(options)}function ellipse(center,rx,ry,options){options=options||{};var elmt=getSVGElement(options.id,"ellipse");center=toSVG(center);var node=$(elmt.node);node.attr("cx",center[0]);node.attr("cy",center[1]);node.attr("rx",rx*SVG.xunitlength);node.attr("ry",ry*SVG.yunitlength);setStrokeAndFill(node,options);appendSVG(elmt)}function polygon(list,options){options=options||{};options.closed=true;path(list,options)}function rect(p,q,options){options=options||{};var elmt=getSVGElement(options.id,"rect");var attr=getOptions(["rx","ry"],options);var node=$(elmt.node);node.attr("x",toSVG(p)[0]);node.attr("y",toSVG(q)[1]);node.attr("width",(q[0]-p[0])*SVG.xunitlength);node.attr("height",(q[1]-p[1])*SVG.yunitlength);node.attr("rx",attr.rx*SVG.xunitlength);node.attr("ry",attr.ry*SVG.yunitlength);setStrokeAndFill(node,options);appendSVG(elmt)}function text(p,st,options){options=options||{};var id=options.id;var attr=getOptions(["fontstyle","fontfamily","fontweight","fontfill","fontsize","fixed","pos"],options);if(id&&options.isLabel){id+=options.isLabel}var pos=attr.pos.toUpperCase();if(!attr.fixed){attr.fontsize/=SVG.factor}var elem,node,dx,dy,latex=false,str=$.trim(st.toString()),q=toSVG(p);if(str.charAt(0)=="$"){str=str.substr(1,str.length-2);latex=true}if(latex){if(p[0]>SVG.xmax||p[0]<SVG.xmin||p[1]>SVG.ymax||p[1]<SVG.ymin){return}node=createElementXHTML("div");node.style.position="absolute";node.style.left="-1000px";node.style.top="-1000px";$("body").append(node);var math=MSVG.parseMath(str,true,attr.fontsize+"px",attr.fontfill);var mathNode=$(node);mathNode.append($(math).clone());dx=-node.offsetWidth/2;dy=-node.offsetHeight/2;if(/N/.test(pos)){dy=-node.offsetHeight}if(/S/.test(pos)){dy=0}if(/E/.test(pos)){dx=0}if(/W/.test(pos)){dx=-node.offsetWidth}var width=mathNode.width(),height=mathNode.height();mathNode.remove();q[0]+=dx;q[1]+=dy;var elmt=getSVGElement(id,"foreignObject");elem=$(elmt.node);elem.empty().append(math);elem.attr("width",width);elem.attr("height",height)}else{var baseline="middle",textanchor="middle";if(/E/.test(pos)){textanchor="start"}if(/W/.test(pos)){textanchor="end"}if(/N/.test(pos)){baseline="text-after-edge"}if(/S/.test(pos)){baseline="text-before-edge"}var elmt=getSVGElement(id,"text");elem=$(elmt.node);elem.empty().text(str);elem.attr("font-style",attr.fontstyle);elem.attr("font-family",attr.fontfamily);elem.attr("font-weight",attr.fontweight);elem.attr("font-size",attr.fontsize);elem.attr("text-anchor",textanchor);elem.attr("dominant-baseline",baseline);setStrokeAndFill(elem,options,"font")}elem.attr("x",q[0]);elem.attr("y",q[1]);appendSVG(elmt)}function image(url,options){options=options||{};var elmt=getSVGElement(options.id,"image");var elem=$(elmt.node);var height=options.height?options.height/SVG.factor:SVG.height;var width=options.width?options.width/SVG.factor:SVG.width;var origin=toSVG(options.origin||[SVG.xmin,SVG.ymin]);var pos=(options.pos||"").toUpperCase();var x=origin[0]-width*0.5;var y=origin[1]-height*0.5;if(/N/.test(pos)){y-=height*0.5}if(/S/.test(pos)){y+=height*0.5}if(/E/.test(pos)){x+=width*0.5}if(/W/.test(pos)){x-=width*0.5}elem.attr("x",x);elem.attr("y",y);elem.attr("width",width);elem.attr("height",height);elem.attr("preserveAspectRatio","none");elmt.node.setAttributeNS("http://www.w3.org/1999/xlink","xlink:href",url);appendSVG(elmt)}function grid(options){options=options||{};var dx,dy,x,y,k;var orig=options.origin||[0,0];var id=options.id||"Grid";options.stroke=options.stroke||"grey";options.strokewidth=(options.strokewidth||SVG.attr.strokewidth*0.5);var coords=options.coords||SVG.coords;var lim=getScales(options.scales);openGroup(id,true);lim[2]=(typeof lim[2]=="number")?lim[2]:SVG.ymin;lim[3]=(typeof lim[3]=="number")?lim[3]:SVG.ymax;if(coords=="polar"){dx=options.dx||1;dy=options.dy||3;var limit=Math.max(Math.abs(lim[0]),Math.abs(lim[1]),Math.abs(lim[2]),Math.abs(lim[3]));for(x=dx;x<limit;x+=dx){circle(orig,x,options)}if(dy>1){for(y=1;y<dy;y++){k=Math.tan(y*Math.PI/(2*dy));line([lim[0],(lim[0]-orig[0])*k+orig[1]],[SVG.xmax,(lim[1]-orig[0])*k+orig[1]],options);line([lim[0],-(lim[0]-orig[0])*k+orig[1]],[SVG.xmax,-(lim[1]-orig[0])*k+orig[1]],options)}}}else{dx=options.dx||1;dy=options.dy||dx;for(x=orig[0];x<SVG.xmax;x+=dx){if(x>lim[0]&&x<lim[1]){line([x,lim[2]],[x,lim[3]],options)}}for(x=orig[0]-dx;x>SVG.xmin;x-=dx){if(x>lim[0]&&x<lim[1]){line([x,lim[2]],[x,lim[3]],options)}}for(y=orig[1];y<SVG.ymax;y+=dy){if(y>lim[2]&&y<lim[3]){line([lim[0],y],[lim[1],y],options)}}for(y=orig[1]-dy;y>SVG.ymin;y-=dy){if(y>lim[2]&&y<lim[3]){line([lim[0],y],[lim[1],y],options)}}}closeGroup()}function axes(options){options=options||{};options.marker="-|"+(options.marker?options.marker.charAt(0):"-");var i,x,y,start,stop,label;var dx=options.dx||1;var dy=options.dy||dx;var id=options.id||"Axes";var fontsize=getOptions("fontsize",options);var coords=options.coords||SVG.coords;var orig=(coords=="polar")?[0,0]:(options.origin||[0,0]);var ddx=options.decx||Math.max(0,-Math.floor(Math.log(dx)/Math.log(10)));var ddy=options.decy||Math.max(0,-Math.floor(Math.log(dy)/Math.log(10)));options.stroke=options.stroke||"black";options.strokewidth=(options.strokewidth||SVG.attr.strokewidth*0.5);options.markerstroke=options.stroke;options.markerstrokewidth=options.strokewidth;openGroup(id,true);var lim=getScales(options.scales);lim[2]=lim[2]||SVG.ymin;lim[3]=lim[3]||SVG.ymax;if($.isArray(options.xticks)){var xticks=options.xticks.sort();var list2=[[lim[0],orig[1]]];label=[""];for(i=0;i<xticks.length;i++){list2.push([xticks[i],orig[1]]);label.push(String(xticks[i].toFixed(ddx)))}list2.push([lim[1],orig[1]]);label.push("")}else{var list1=[],label1=[];var list2=[],label2=[];start=SVG.xmin+0.25*dx;stop=SVG.xmax-0.25*dx;i=1;var cand,leftExit=0,rightExit=0;while(leftExit*rightExit==0){cand=orig[0]+i*dx;if(cand>start){if(cand<stop){list1.push([cand,orig[1]]);label1.push(String(cand.toFixed(ddx)))}else{rightExit=1}}cand=orig[0]-i*dx;if(cand<stop){if(cand>start){list2.push([cand,orig[1]]);label=(coords=="polar")?"":cand.toFixed(ddx);label2.push(String(label))}else{leftExit=1}}i++}list1.push([lim[1],orig[1]]);label1.push("");list2.push([lim[0],orig[1]]);label2.push("");list2.reverse();list2=list2.concat(list1);label2.reverse();label=label2.concat(label1)}if(options.ticklabels!=false){options.label=label;options.pos="S"}path(list2,options);if($.isArray(options.yticks)){var yticks=options.yticks.sort();var list2=[[orig[0],lim[2]]];label=[""];for(i=0;i<yticks.length;i++){list2.push([orig[0],yticks[i]]);label.push(String(yticks[i].toFixed(ddy)))}list2.push([orig[0],lim[3]]);label.push("")}else{list1=[],label1=[];list2=[];label2=[];start=SVG.ymin+0.25*dy;stop=SVG.ymax-0.25*dy;i=1;leftExit=0;rightExit=0;while(leftExit*rightExit==0){cand=orig[1]+i*dy;if(cand>start){if(cand<stop){list1.push([orig[0],cand]);label1.push(String(cand.toFixed(ddy)))}else{rightExit=1}}cand=orig[1]-i*dy;if(cand<stop){if(cand>start){list2.push([orig[0],cand]);label=(coords=="polar")?"":cand.toFixed(ddy);label2.push(String(label))}else{leftExit=1}}i++}list1.push([orig[0],lim[3]]);label1.push("");list2.push([orig[0],lim[2]]);label2.push("");list2.reverse();list2=list2.concat(list1);label2.reverse();label=label2.concat(label1)}if(options.ticklabels!=false){options.label=label;options.pos="W"}options.stroke=options.markerstroke;path(list2,options);closeGroup()}function list(fun,tmin,tmax,options){var inc=(tmax-tmin)/getOptions("points",options);if(inc<=0||fun.length==0){return}var t,pth,g=[],xt,yt;for(t=1;t>=0;t--){if($.isFunction(fun[t])){g[t]=fun[t]}else{if(typeof fun[t]=="string"){with(Math){eval("g["+t+"] = function(x){return "+fun[t]+"}")}}else{return}}}if(g.length<2){return}pth=[];for(t=tmin;t<=tmax;t+=inc){xt=g[0](t);yt=g[1](t);if(isFinite(xt)&&isFinite(yt)){pth[pth.length]=[xt,yt]}}return pth}function plot(fun,options){options=options||{};var append,pth,steps=options.steps||[];var n_steps=steps.length;options.closed=false;options.curve="";var xmin=(options.min==null)?SVG.xmin:Math.max(SVG.xmin,options.min);var xmax=(options.max==null)?SVG.xmax:Math.min(SVG.xmax,options.max);if(n_steps===0){pth=list(["x",fun],xmin,xmax,options);if(pth){path(pth,options)}}else{options.id=options.id||Math.randomString(6);steps.sort();var steps_a=[];steps_a.push(xmin);for(i=0;i<n_steps;i++){if(steps[i]>xmin&&steps[i]<xmax){steps_a.push(steps[i])}}steps_a.push(xmax);n_steps=steps_a.length-1;for(i=0;i<n_steps;i++){xmax=steps_a[i+1];xmin=steps_a[i];pth=list(["x",fun],xmin,xmax,options);append=(i>0);if(pth){path(pth,options,append)}}}}function area(fun1,fun2,options){options=options||{};options.curve="";options.closed=true;var xmin=(options.min==null)?SVG.xmin:options.min;var xmax=(options.max==null)?SVG.xmax:options.max;var pth1=list(["x",fun1],xmin,xmax,options);var pth2=list(["x",fun2],xmin,xmax,options);if(pth1&&pth2){pth1=pth1.concat(pth2.reverse());path(pth1,options)}}function polarPlot(fun,options){var g1,g2;if(typeof fun=="string"){with(Math){eval("g1 = function(x){return ("+fun+")*cos(x)}");eval("g2 = function(x){return ("+fun+")*sin(x)}")}}else{if($.isFunction(fun)){with(Math){eval("g1 = function(x){return fun(x)*cos(x)}");eval("g2 = function(x){return fun(x)*sin(x)}")}}}parametricPlot(g1,g2,options)}function parametricPlot(fun1,fun2,options){options=options||{};options.closed=false;options.curve="";var xmin=(options.min==null)?0:options.min;var xmax=(options.max==null)?2*Math.PI:options.max;var pth=list([fun1,fun2],xmin,xmax,options);if(pth){path(pth,options)}}function slopeField(fun,options){options=options||{};var g=fun;if(typeof fun=="string"){with(Math){eval("g = function(x,y){return "+fun+"}")}}var gxy,x,y,u,v,dz;var dx=(options.dx==null)?1:options.dx;var dy=(options.dy==null)?1:options.dy;dz=Math.sqrt(dx*dx+dy*dy)/6;var xmin=Math.ceil(SVG.xmin/dx);var ymin=Math.ceil(SVG.ymin/dy);for(x=xmin;x<=SVG.xmax;x+=dx){for(y=ymin;y<=SVG.ymax;y+=dy){gxy=g(x,y);if(!isNaN(gxy)){if(Math.abs(gxy)=="Infinity"){u=0;v=dz}else{u=dz/Math.sqrt(1+gxy*gxy);v=gxy*u}line([x-u,y-v],[x+u,y+v],options)}}}}return{showFormulaOnMouseOver:false,latexImages:false,latexConverter:"http://chart.apis.google.com/chart?cht=tx&chs=1x0&chf=bg,s,FFFFFF00&chco=000000&chl=",mathColor:"",mathFontSize:"",mathFontFamily:"",define:function(oldstr,newstr){if(MSVG.latexImages){return}if((typeof oldstr)=="string"){oldstr=[oldstr];newstr=[newstr]}var i,len=oldstr.length;if(len!=newstr.length){return}for(i=0;i<len;i++){symbols=symbols.concat([{input:"\\"+oldstr[i],tag:"mo",output:newstr[i],ttype:DEFINITION}])}refreshSymbols()},parseMath:function(str,displaystyle,size,color){if(str===null){return null}var frag=parseExpr(str.replace(/^\s+/g,""),false,false)[0];var node=createMmlNode("mstyle",frag);if(displaystyle){$(node).attr({displaystyle:"true"})}$(node).attr({mathcolor:color||MSVG.mathColor,fontsize:size||MSVG.mathFontSize,fontfamily:MSVG.mathFontFamily});node=createMmlNode("math",node);if(MSVG.showFormulaOnMouseOver){$(node).attr({title:str.replace(/\s+/g," ")})}return node},parseMathExternal:function(str,displaystyle,size,color){if(str===null){return null}var node=createElementXHTML("img");var snip=MSVG.latexConverter+str;$(node).attr({src:snip});if(MSVG.showFormulaOnMouseOver){$(node).attr({title:str.replace(/\s+/g," ")})}return node},generic:function(){if(!$.browser.mozilla){MSVG.latexImages=true}if(MSVG.latexImages){MSVG.parseMath=MSVG.parseMathExternal}else{refreshSymbols()}if(!document.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure","1.1")){MSVG.initPictures=MSVG.removePictures}},removePictures:function(obj){var pictures=obj?$(obj):$(".SVGgraph");$(pictures).each(function(){var that=$(this);this.id=null;that.empty();that.css({color:"red",background:"yellow"});that.text("Missing picture: your browser does not support inline SVG");window.setTimeout(function(){that.remove()},10000)})},initPictures:function(obj){var options,scales,qnode,node,node2,status,offline,elem;var pictures=obj?$(obj):$(".SVGgraph");$(pictures).each(function(){var that=$(this);offline=!(this.nodeName=="SPAN");status=0;SVG=new pictureObject();options=$(this).attr("options");that.removeAttr("id");if(options){with(Math){eval("options={"+options+"}")}setOptions(options)}else{options={}}if(options.pan==false){SVG.pan=false}SVG.coords=options.coords||SVG.coords;SVG.src=$.trim($(this).text());that.empty();if(typeof options.width=="number"&&options.width>0){SVG.width=options.width;status+=1}if(typeof options.height=="number"&&options.height>0){SVG.height=options.height;status+=2}var scales=getScales(options.scales);SVG.xmin=scales[0];SVG.xmax=scales[1];SVG.ymin=scales[2];SVG.ymax=scales[3];status+=scales[4];SVG.height=options.height;if(status%4!=0){SVG.width=options.width}if(!SVG.width){SVG.width=1.6*SVG.height}else{if(!SVG.height){SVG.height=0.625*SVG.width}}if(status<8){SVG.ymax=0.5*SVG.height*(SVG.xmax-SVG.xmin)/SVG.width;SVG.ymin=-SVG.ymax}else{if(status<12){SVG.xmax=0.5*SVG.width*(SVG.ymax-SVG.ymin)/SVG.height;SVG.xmin=-SVG.xmax}}if(status==12||status==13){SVG.height=SVG.width*(SVG.ymax-SVG.ymin)/(SVG.xmax-SVG.xmin)}else{if(status==14){SVG.width=SVG.height*(SVG.xmax-SVG.xmin)/(SVG.ymax-SVG.ymin)}}SVG.id=Math.randomString(16);qnode=createSVGElement("svg");elem=$(qnode);qnode.id=SVG.id;elem.attr("xmlns","http://www.w3.org/2000/svg");elem.attr("xmlns:ev","http://www.w3.org/2001/xml-events");elem.attr("xmlns:xlink","http://www.w3.org/1999/xlink");elem.attr("version","1.1");elem.attr("baseProfile","full");if(options.border){elem.attr("style","border:"+options.border)}node=createSVGElement("clipPath");node.id=SVG.id+"ClipPath";node2=createSVGElement("path");$(node).append(node2);elem.attr("clip-path","url(#"+SVG.id+"ClipPath)");node2=createSVGElement("defs");node2.id=SVG.id+"_Defs";$(node2).append(node);$(qnode).append(node2);node=createSVGElement("rect");elem=$(node);elem.attr("x","0");elem.attr("y","0");elem.attr("width","100%");elem.attr("height","100%");elem.attr("fill","none");elem.attr("pointer-events","all");$(qnode).append(node);node2=createSVGElement("g");node2.id=SVG.id+"_Canvas";$(qnode).append(node2);that.append(qnode);this.style.position="relative";if(offline){setAction("mousemove",updatePosition);if(SVG.pan){setAction("mouseup",onDrop)}if(window.addEventListener){var evt=$.browser.mozilla?"DOMMouseScroll":"mousewheel";qnode.addEventListener(evt,onWheel,false)}}setAction("mousedown",onClick);setAction("mouseover",switchTo);canvas=$("#"+SVG.id+"_Canvas")[0];resize(1)});if(pictures.length>0&&$("#SVGtoolbar").length===0){node=createElementXHTML("span");node.id="SVGtoolbar";node.style.position="absolute";node.style.textAlign="left";node.style.zIndex=10;node=addButton(node,"X","Close editor",closeEditor);node=addButton(node,"Update","Update picture",updateButton,"SVGupdateButton");node=addButton(node,"SVG","View SVG code",exportSVG);node=addButton(node,"-","Zoom out",function(){zoom(1.25,true)});node=addButton(node,"+","Zoom in",function(){zoom(0.8,true)});node=addButton(node,"\u2191","Enlarge picture",function(){resize(0.8)});node=addButton(node,"\u2193","Reduce picture",function(){resize(1.25)});$(node).append("<br />");node2=createElementXHTML("textarea");$(node2).attr({id:"SVGsrc",rows:8,cols:60});$(node).append(node2);$(node).hide();$("body").append(node)}}}}(jQuery);
//}}}
/***
!~TiddlyWiki formatters
***/
//{{{
if(!version.extensions.MathSVGPlugin) { //# ensure that the plugin is only installed once
version.extensions.MathSVGPlugin = {installed: true};
MSVG.generic();
config.formatterHelpers.MathSVGHelper = function(w) {
if(MSVG.noMathTag && jQuery.inArray(MSVG.noMathTag,w.tiddler.tags)>-1) return;
this.lookaheadRegExp.lastIndex = w.matchStart;
var lookaheadMatch = this.lookaheadRegExp.exec(w.source);
if(lookaheadMatch){
var eq = MSVG.parseMath(lookaheadMatch[1],this.displaystyle);
if(this.displaystyle){
var node = createTiddlyElement(w.output,"div");
node.style.textAlign='center';
node.appendChild(eq);
w.output.appendChild(node);
} else {w.output.appendChild(eq);}
w.nextMatch = lookaheadMatch.index + lookaheadMatch[0].length;
}
}
config.formatters.push( {
name: "clatex",
match: "\\$\\$",
lookaheadRegExp: /\$\$((?:.|\n)*?)\$\$/mg,
displaystyle: true,
handler: config.formatterHelpers.MathSVGHelper
})
config.formatters.push( {
name: "clatex2",
match: "\\\\\\\[",
lookaheadRegExp: /\\\[((?:.|\n)*?)\\\]/mg,
displaystyle: true,
handler: config.formatterHelpers.MathSVGHelper
})
config.formatters.push( {
name: "latex",
match: "\\$",
lookaheadRegExp: /\$((?:.|\n)*?)\$/mg,
displaystyle: false,
handler: config.formatterHelpers.MathSVGHelper
})
config.formatters.push( {
name: "latex2",
match: "\\\\\\\(",
lookaheadRegExp: /\\\(((?:.|\n)*?)\\\)/mg,
displaystyle: false,
handler: config.formatterHelpers.MathSVGHelper
})
config.formatters.push( {
name: "graph",
match: "<div",
lookaheadRegExp: /<div.+SVGgraph.+?>((?:.|\n)*?)<\/div>/mg,
handler: function(w){
if(MSVG.noSvgTag && jQuery.inArray(MSVG.noSvgTag,w.tiddler.tags)>-1) return;
this.lookaheadRegExp.lastIndex = w.matchStart;
var lookaheadMatch = this.lookaheadRegExp.exec(w.source);
if(lookaheadMatch){
var text = lookaheadMatch[0].replace('<div','<div id="currentGraph"');
jQuery(w.output).append(text);
MSVG.initPictures("#currentGraph");
w.nextMatch = lookaheadMatch.index + lookaheadMatch[0].length;
}
}
})
config.formatters.push( {
name: "inlineGraph",
match: "<span",
lookaheadRegExp: /<span.+SVGgraph.+?>((?:.|\n)*?)<\/span>/mg,
handler: function(w){
if(MSVG.noSvgTag && jQuery.inArray(MSVG.noSvgTag,w.tiddler.tags)>-1) return;
this.lookaheadRegExp.lastIndex = w.matchStart;
var lookaheadMatch = this.lookaheadRegExp.exec(w.source);
if(lookaheadMatch){
var text = lookaheadMatch[0].replace('<span','<span id="currentGraph"');
jQuery(w.output).append(text);
MSVG.initPictures("#currentGraph");
w.nextMatch = lookaheadMatch.index + lookaheadMatch[0].length;
}
}
})
}
//}}}