<!DOCTYPE html> <html lang="ja"> <head> <meta charset="utf-8"> <script src="//d3js.org/d3.v3.min.js" charset="utf-8"></script> <title>部屋の気温</title> <style> body { font: 10px sans-serif; }
.axis path, .axis line { fill: none; stroke: #000; shape-rendering: crispEdges; }
.line { fill: none; stroke: steelblue; stroke-width: 1.5px; } </style> </head> <body> <script type="text/javascript"> var margin = {top: 20, right: 20, bottom: 30, left: 50}, width = 960 - margin.left - margin.right, height = 500 - margin.top - margin.bottom;
var formatDate = d3.time.format("%Y-%m-%dT%H:%M:%S.%LZ");
var x = d3.time.scale() .range([0, width]);
var y = d3.scale.linear() .range([height, 0]);
var xAxis = d3.svg.axis() .scale(x) .orient("bottom");
var yAxis = d3.svg.axis() .scale(y) .orient("left");
var line = d3.svg.line() .x(function(d) { return x(d.send_time); }) .y(function(d) { return y(d.temp); });
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.json("data.json", function(error, data) { if (error) throw error; data.forEach(function(d) { d.send_time = formatDate.parse(d.send_time); d.temp = +d.temp; });
x.domain(d3.extent(data, function(d) { return d.send_time; })); y.domain(d3.extent(data, function(d) { return d.temp; }));
svg.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + height + ")") .call(xAxis);
svg.append("g") .attr("class", "y axis") .call(yAxis) .append("text") .attr("transform", "rotate(-90)") .attr("y", 6) .attr("dy", ".71em") .style("text-anchor", "end") .text('温度(℃)');
svg.append("path") .datum(data) .attr("class", "line") .attr("d", line); }); </script> </body> </html>
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