Created
August 19, 2012 03:37
-
-
Save chrisbrich/3391642 to your computer and use it in GitHub Desktop.
Reusable Component: MathJax label
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Line Chart</title> | |
| <link href="MathJax.css" rel="stylesheet" type="text/css"> | |
| </head> | |
| <body> | |
| <script type="text/javascript" src="http://d3js.org/d3.v2.js"></script> | |
| <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_SVG"></script> | |
| <script type="text/javascript" src="mathjaxlabel.js"></script> | |
| <script type="text/javascript"> | |
| var margin = {"top": 100, "right": 100, "bottom": 100, "left": 100}, | |
| height = 300, | |
| width = 300, | |
| title = ["\\(Title\\)","\\(sin(\\phi)\\)"], | |
| ylabel = ["\\(Y Label\\)","\\(Random LaTex ^{4}_{2}He\\)"], | |
| xlabel = ["\\(This is not getting positioned correctly\\)","\\(Should be at the bottom of the margin\\)"]; | |
| var gEnter = d3.select("body") | |
| .append("svg").attr("width",500).attr("height",500) | |
| .append("g").attr("class","container"); | |
| gEnter.append("rect").attr("width",300).attr("height",300).attr("transform","translate("+margin.left+","+margin.top+")"); | |
| // X Label | |
| var xlbl = mathJaxLabel().width(width).height(margin.bottom); | |
| gEnter.append("g") | |
| .attr("class","xlabel") | |
| .datum(xlabel) | |
| .attr("transform", "translate("+margin.left+","+(margin.top + 300) +")"); | |
| d3.selectAll("g.xlabel").call(xlbl); | |
| // Y Label | |
| var ylbl = mathJaxLabel().width(height).height(margin.left); | |
| gEnter.append("g") | |
| .attr("transform","rotate(-90)") | |
| .attr("class","ylabel") | |
| .datum(ylabel) | |
| .attr("transform", "translate(0,"+(margin.top + 300)+")rotate(-90)"); | |
| d3.selectAll("g.ylabel").call(ylbl); | |
| // Title | |
| var ttl = mathJaxLabel().width(width).height(margin.bottom); | |
| gEnter.append("g") | |
| .attr("class","title") | |
| .datum(title) | |
| .attr("transform", "translate(100,0)"); | |
| d3.selectAll("g.title").call(ttl); | |
| </script> | |
| </body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| rect { | |
| fill:yellow | |
| } | |
| .xlabel div.holder{ | |
| position: relative; | |
| height: 100%; | |
| width: 100%; | |
| } | |
| .xlabel div.lines{ | |
| position: absolute; | |
| bottom: 0; | |
| width: 100%; | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function mathJaxLabel(){ | |
| //Adds a foreignObject to store mathJax Text, assumes data is a string formatted for mathJax | |
| // Refer to this for mathJax rerendering voodoo: view-source:http://cdn.mathjax.org/mathjax/latest/test/sample-dynamic.html | |
| var height, | |
| width; | |
| function label(selection){ | |
| selection.each(function(data) { | |
| var container = d3.select(this), | |
| QUEUE = MathJax.Hub.queue; | |
| var fo = container.selectAll(".label").data(function(d){return [d]}), | |
| foEnter = fo.enter().append("foreignObject") | |
| .attr("class","label") | |
| .append("xhtml:body") | |
| .attr("xmlns","http://www.w3.org/1999/xhtml") | |
| .append("xhtml:div") | |
| .attr("class","holder") | |
| .append("xhtml:div") | |
| .attr("class","lines") | |
| forUpdate = d3.transition(fo).attr("height",height).attr("width",width), | |
| bUpdate = d3.transition(fo.selectAll("body")).style("height",height+"px").style("width",width+"px"), | |
| foExit = d3.transition(fo.exit()).remove(); | |
| function toggleDisplay(selection){ | |
| selection.each(function() { | |
| var el = d3.select(this), | |
| state = el.style("display") | |
| el.style("display",function(){ | |
| return (state == "block")?"none":"block";})})}; | |
| function updateMath(item,i){ | |
| //Escape whitespace so that user doesn't have to | |
| var newtext = item.select(".input").property("value").split(" ").join("\\ "), | |
| math = MathJax.Hub.getAllJax(item.selectAll("div.div").node())[0], | |
| data = container.datum(); | |
| data[0][i] = "\\("+newtext+"\\)"; | |
| QUEUE.Push(["Text",math,newtext], | |
| function(){item.selectAll(".div,.input").call(toggleDisplay)}); | |
| container.datum(data);} | |
| //each line | |
| var nl = container.selectAll("body div.lines").selectAll("div.newline").data(function(d){return d}), | |
| nlEnter = nl.enter().append("xhtml:div") | |
| .attr("class","newline") | |
| .attr("align","center"); | |
| nlExit = nl.exit().remove(); | |
| //mJax holder | |
| var mjax = nlEnter.append("xhtml:div") | |
| .attr("class","div") | |
| .attr("align","center") | |
| .style("display","none") | |
| .html(function(d){return d.split(" ").join("\\ ")}) | |
| ; | |
| //Input | |
| var inpt = nlEnter.append("xhtml:input") | |
| .attr("class","input") | |
| .style("display","none") | |
| .property("value",function(d){return d.slice(-(d.length -2),(d.length-2))}); | |
| //Display math elements once initialized. | |
| QUEUE.Push(function () { | |
| math = MathJax.Hub.getAllJax(container.selectAll("div.div")[0][0])[0]; | |
| container.selectAll("div.div").style("display","block"); | |
| }); | |
| //Behaviours | |
| container.selectAll("div.newline") | |
| .on("dblclick",function(d,i){ | |
| var el = d3.select(this); | |
| (el.select(".input").style("display") !== "none")?updateMath(el,i):el.selectAll(".div,.input").call(toggleDisplay)}) | |
| .each(function(d,i){ | |
| var el = d3.select(this), | |
| id = i; | |
| el.selectAll(".input") | |
| .on("change",function(){updateMath(el,id)})}); | |
| }); | |
| }; | |
| label.width = function(_) { | |
| if (!arguments.length) return width; | |
| width = _; | |
| return label; | |
| }; | |
| label.height = function(_) { | |
| if (!arguments.length) return height; | |
| height = _; | |
| return label; | |
| }; | |
| return label; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Hey @chrisbrich,
First: Thanks for
mathJaxLabel(). Do you mind if I use it for my (scientific) plotting?I cross-posted the text below to the Google groups discussion but I thought I'd leave it here too in case someone comes across this here. The x-label positioning bug annoyed me! I thought it was working perfectly with your CSS hack, but then as soon as I zoomed in/out and resized the graph, the x-label was out of position.
To fix it, remove the
.xlabelCSS styling and replace.attr("transform", "translate("+margin.left+","+(margin.top + 300) +")");with.attr("transform", "translate("+margin.left+","+(margin.top + 300) +")rotate(0)");inindex.html.That should fix it up. It appears without the
rotate(0), none of the transform occurs.Cheers,
Andy