Verticale Bar Chart with text tween transition
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March 24, 2016 16:09
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Text tween
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| letter | frequency | |
|---|---|---|
| A | .08167 | |
| B | .01492 | |
| C | .02780 | |
| D | .04253 | |
| E | .12702 | |
| F | .02288 | |
| G | .02022 | |
| H | .06094 | |
| I | .06973 | |
| J | .00153 | |
| K | .00747 | |
| L | .04025 | |
| M | .02517 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .x.axis { | |
| display: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var margin = {top: 20, right: 30, bottom: 20, left: 30}, | |
| width = 500 - margin.left - margin.right, | |
| height = 700 - margin.top - margin.bottom; | |
| var formatPercent = d3.format(".3s"); | |
| var x = d3.scale.linear() | |
| .range([0, width]); | |
| var y = d3.scale.ordinal() | |
| .rangeRoundBands([height, 0], .3, .3); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom") | |
| .tickFormat(formatPercent); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .tickSize(0) | |
| .orient("left"); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.csv("data.csv", function(error, data) { | |
| data.forEach(function(d) { | |
| d.frequency = +d.frequency; | |
| }); | |
| x.domain([0, d3.max(data, function(d) { return d.frequency; })]); | |
| y.domain(data.map(function(d) { return d.letter; })); | |
| var bar = svg.selectAll(".bar") | |
| .data(data) | |
| .enter().append("g") | |
| .attr("class", "bar"); | |
| bar.append("rect") | |
| .attr("y", function(d) { return y(d.letter); }) | |
| .attr("height", y.rangeBand()) | |
| .attr("width", 0) | |
| .style("fill","#1a9850"); | |
| bar.append("text") | |
| .attr("x", 5) | |
| .attr("y", function(d) { return y(d.letter) + y.rangeBand()/2 + 3; }) | |
| .text(0); | |
| bar.selectAll("rect").transition().ease("quad-out").duration(2000).delay(0).attr("width", function(d) { return x(d.frequency); }); | |
| bar.selectAll("text").transition().ease("quad-out").duration(2000).delay(0) | |
| .attr("x", function(d) { return x(d.frequency) + 3; }) | |
| .tween("text", function(d) { | |
| var i = d3.interpolate(0, d.frequency); | |
| return function(t) { | |
| d3.select(this).text(formatPercent(i(t))); | |
| }; | |
| }); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| .selectAll("text") | |
| .style("font-weight","bold"); | |
| d3.select(self.frameElement).style("height", (height + margin.top + margin.bottom) + "px"); | |
| }); | |
| </script> |
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