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Simple CSV plotter with D3.js
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| <!DOCTYPE html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Simple CSV plotter</title> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <style> | |
| #input { | |
| padding-left: 10px; | |
| width: 300px; | |
| float: left; | |
| } | |
| #result { | |
| float: left; | |
| } | |
| textarea { | |
| width: 250px; | |
| height: 450px; | |
| resize: none; | |
| } | |
| .axis path { | |
| fill: none; | |
| stroke: grey; | |
| } | |
| .axis line { | |
| stroke: grey; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="input"> | |
| CSVデータを入力して | |
| <input type="button" value="plot!" id="plot"><br> | |
| <textarea id="csv">x,y | |
| 1,10 | |
| 2,2 | |
| 3,4 | |
| 4,5 | |
| 5,9 | |
| 6,5 | |
| 7,9 | |
| 8,2 | |
| 9,6 | |
| 10,5</textarea> | |
| </div> | |
| <div id="result"><svg></svg></div> | |
| <script> | |
| (function() { | |
| document.getElementById("plot").onclick = plot; | |
| var w = 600, h = 500; | |
| var margin = {left: 60, top: 30, right: 20, bottom: 60}; | |
| var svg = d3.select("svg").style({width: w, height: h}); | |
| var xScale = d3.scale.linear().range([margin.left, w-margin.right]); | |
| var yScale = d3.scale.linear().range([h-margin.bottom, margin.top]); | |
| var xAxis = d3.svg.axis().scale(xScale).orient("bottom"); | |
| var yAxis = d3.svg.axis().scale(yScale).orient("left"); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .append("text") | |
| .attr("class", "x label") | |
| .text("x") | |
| .attr("font-size", 12) | |
| .attr("dx", (w-margin.right)/2) | |
| .attr("dy", "3.8em"); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .append("text") // ラベル | |
| .attr("class", "y label") | |
| .text("y") | |
| .attr("font-size", 12) | |
| .attr("transform", "rotate(-90)") | |
| .attr("dy", "-3.8em") | |
| .attr("dx", -(h+margin.top-margin.bottom)/2) | |
| .attr("text-anchor", "middle"); | |
| var line = d3.svg.line(); | |
| svg.append("path") | |
| .attr("class", "line") | |
| .attr("fill", "none") | |
| .attr("stroke", "steelblue"); | |
| plot(); | |
| function plot() { | |
| var raw = document.getElementById("csv").value; | |
| var data = d3.csv.parse(raw); | |
| var keys = Object.keys(data[0]); | |
| var xExtent = d3.extent(data, function(e) { return +e[keys[0]]; }); | |
| var yExtent = d3.extent(data, function(e) { return +e[keys[1]]; }); | |
| xScale.domain(xExtent).nice(); | |
| yScale.domain(yExtent).nice(); | |
| xAxis.scale(xScale); | |
| yAxis.scale(yScale); | |
| d3.select(".x.axis") | |
| .attr("transform", "translate(0,"+yScale.range()[0]+")") | |
| .call(xAxis); | |
| d3.select(".y.axis") | |
| .attr("transform", "translate("+xScale.range()[0]+",0)") | |
| .call(yAxis); | |
| d3.select(".x.label").text(keys[0]); | |
| d3.select(".y.label").text(keys[1]); | |
| line | |
| .x(function(d) { return xScale(d[keys[0]]); }) | |
| .y(function(d) { return yScale(d[keys[1]]); }); | |
| svg.select(".line").datum(data).attr("d", line); | |
| var points = svg.selectAll(".point").data(data); | |
| points.enter() | |
| .append("circle") | |
| .attr("class", "point") | |
| .attr("r", 3) | |
| .attr("fill", "steelblue") | |
| .attr("stroke", "steelblue"); | |
| points.exit().remove(); | |
| points | |
| .attr("cx", function(d){ return xScale(d[keys[0]]); }) | |
| .attr("cy", function(d){ return yScale(d[keys[1]]); }); | |
| } | |
| })(); | |
| </script> | |
| </body> | |
| </html> |
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