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added chart
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Ilya Ig. Petrov
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18
chart/README.md
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chart/README.md
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Dual-scale-D3-Bar-Chart
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========================
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This is a demo for creating dual-scaled bar charts using D3.js
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I came across this task when I was working on a simple HTML project. As I googled around and, unfortunately, could not find any example, I decided to do it myself.
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Please bear in mind that I am new to D3.js and this is actually my first time using it. I had heard of D3.js but never used it.
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Hope that this could be of use to someone. All suggestions for improvement are welcome.
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Note: since d3.js uses ajax to load tsv files, the files contained in the src folder cannot be run in a browser using file:///. Execute the following command under the src directory to create a HTTP server.
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python -m SimpleHTTPServer
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Use the following URL to access index.html
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http://localhost:8000/index.html
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BIN
chart/preview/host-lookup-chart.png
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chart/preview/host-lookup-chart.png
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After Width: | Height: | Size: 13 KiB |
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chart/src/data.tsv
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chart/src/data.tsv
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approach memHit timeHit memMiss timeMiss
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hosts-reversed-binary 109 3704594 96 602820
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hosts-binary 351 3718253 210 605188
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hosts-plain-switch 367 2874843 88 607200
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hosts-hash 347 5062512 207 609278
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hosts-switch 88 894410 77 614169
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ips-switch 37 1348111 72 597439
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ips-indexOf 35 4853437 72 599850
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ips-binary 31 3542401 77 602958
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chart/src/index.html
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chart/src/index.html
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<!DOCTYPE html>
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<meta charset="utf-8">
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<style>
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body {
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font: 10px sans-serif;
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}
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.y.axisRight text {
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fill: orange;
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}
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.y.axisLeft text {
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fill: steelblue;
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}
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.axis path,
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.axis line {
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fill: none;
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stroke: #000;
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shape-rendering: crispEdges;
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}
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.timeMiss {
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fill: blue;
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}
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.memMiss {
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fill: red;
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}
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.timeHit {
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fill: steelblue;
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}
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.memHit {
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fill: orange;
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}
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.x.axis path {
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display: none;
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}
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</style>
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<body>
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<script src="http://d3js.org/d3.v3.min.js"></script>
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<script>
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var margin = {top: 80, right: 80, bottom: 80, left: 80},
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width = 1000 - margin.left - margin.right,
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height = 400 - margin.top - margin.bottom;
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var x = d3.scale.ordinal()
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.rangeRoundBands([0, width], .1);
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var y0 = d3.scale.linear().domain([0, 400]).range([height, 0]);
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var y1 = d3.scale.linear().domain([0, 6000000]).range([height, 0]);
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var xAxis = d3.svg.axis()
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.scale(x)
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.orient("bottom");
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// create left yAxis
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var yAxisLeft = d3.svg.axis().scale(y0).ticks(4).orient("left");
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// create right yAxis
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var yAxisRight = d3.svg.axis().scale(y1).ticks(6).orient("right");
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var svg = d3.select("body").append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("class", "graph")
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
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function type(d) {
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d.memMiss = +d.memMiss;
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return d;
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}
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d3.tsv("data.tsv", type, function(error, data) {
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x.domain(data.map( d => d.approach ));
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//y0.domain([0, d3.max(data, d => Math.max(d.memHit, d.memMiss) )]);
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//y1.domain([0, d3.max(data, d => Math.max(d.timeHit, d.timeMiss) )]);
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svg.append("g")
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.attr("class", "x axis")
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.attr("transform", "translate(0," + height + ")")
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.call(xAxis);
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svg.append("g")
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.attr("class", "y axis axisLeft")
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.attr("transform", "translate(0,0)")
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.call(yAxisLeft)
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.append("text")
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.attr("y", 6)
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.attr("dy", "-2em")
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.style("text-anchor", "end")
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.style("text-anchor", "end")
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.text("bytes per request");
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svg.append("g")
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.attr("class", "y axis axisRight")
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.attr("transform", "translate(" + (width) + ",0)")
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.call(yAxisRight)
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.append("text")
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.attr("y", 6)
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.attr("dy", "-2em")
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.attr("dx", "2em")
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.style("text-anchor", "end")
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.text("ns per request");
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bars = svg.selectAll(".bar").data(data).enter();
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bars.append("rect")
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.attr("class", "memHit")
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.attr("width", x.rangeBand()*0.25*0.5 )
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.attr("x", d => x(d.approach) + x.rangeBand()*0.25 )
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.attr("y", d => y0(d.memHit) )
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.attr("height", (d,i,j) => height - y0(d.memHit) );
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bars.append("rect")
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.attr("class", "timeHit")
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.attr("x", d => x(d.approach) + x.rangeBand()*0.25*1.5 )
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.attr("width", x.rangeBand()*0.25*0.5 )
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.attr("y", d => y1(d.timeHit) )
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.attr("height", (d,i,j) => height - y1(d.timeHit) );
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bars.append("rect")
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.attr("class", "memMiss")
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.attr("x", d => x(d.approach) + x.rangeBand()*0.25*2 )
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.attr("width", x.rangeBand()*0.25*0.5 )
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.attr("y", d => y0(d.memMiss) )
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.attr("height", (d,i,j) => height - y0(d.memMiss) );
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bars.append("rect")
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.attr("class", "timeMiss")
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.attr("x", d => x(d.approach) + x.rangeBand()*0.25*2.5 )
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.attr("width", x.rangeBand()*0.25*0.5 )
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.attr("y", d => y1(d.timeMiss) )
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.attr("height", (d,i,j) => height - y1(d.timeMiss) );
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// add legend
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var color_hash = { 0 : ["memMiss", "blue"],
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1 : ["timeMiss", "red"],
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2 : ["memHit", "steelblue"],
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3 : ["timeHit", "orange"]
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}
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var legend = svg.append("g")
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.attr("class", "legend")
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.attr("x", width - 65)
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.attr("y", 25)
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.attr("height", 100)
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.attr("width", 100);
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legend.selectAll('g')
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.data(data)
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.enter()
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.append('g')
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.each(function(d, i) {
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if(i > 3)
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return; // Approach.
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var g = d3.select(this);
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g.append("rect")
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.attr("x", width - 65)
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.attr("y", i*25)
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.attr("width", 10)
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.attr("height", 10)
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.style("fill", color_hash[i][1]);
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g.append("text")
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.attr("x", width - 50)
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.attr("y", i * 25 + 8)
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.attr("height",30)
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.attr("width",100)
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.style("fill", color_hash[i][1])
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.text(color_hash[i][0]);
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});
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});
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</script>
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