Created
February 10, 2024 17:25
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D3.js - bullet chart
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; | |
| margin: auto; | |
| padding-top: 40px; | |
| position: relative; | |
| width: 800px; | |
| } | |
| button { | |
| position: absolute; | |
| right: 40px; | |
| top: 10px; | |
| } | |
| .bullet { font: 10px sans-serif; } | |
| .bullet .marker { stroke: #000; stroke-width: 2px; } | |
| .bullet .tick line { stroke: #666; stroke-width: .5px; } | |
| .bullet .range.s0 { fill: #eee; } | |
| .bullet .range.s1 { fill: #ddd; } | |
| .bullet .range.s2 { fill: #ccc; } | |
| .bullet .measure.s0 { fill: steelblue; } | |
| .bullet .title { font-size: 14px; font-weight: bold; } | |
| .bullet .subtitle { fill: #999; } | |
| </style> | |
| <button>Update</button> | |
| <script type="text/javascript" src="d3/d3.v3.js"></script> | |
| <script src="js/bullet.js"></script> | |
| <script> | |
| var margin = {top: 5, right: 40, bottom: 20, left: 120}, | |
| width = 800 - margin.left - margin.right, | |
| height = 50 - margin.top - margin.bottom; | |
| var chart = d3.bullet() | |
| .width(width) | |
| .height(height); | |
| d3.json("data/cpu1.json", function(error, data) { | |
| var svg = d3.select("body").selectAll("svg") | |
| .data(data) | |
| .enter().append("svg") | |
| .attr("class", "bullet") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")") | |
| .call(chart); | |
| var title = svg.append("g") | |
| .style("text-anchor", "end") | |
| .attr("transform", "translate(-6," + height / 2 + ")"); | |
| title.append("text") | |
| .attr("class", "title") | |
| .text(function(d) { return d.title; }); | |
| title.append("text") | |
| .attr("class", "subtitle") | |
| .attr("dy", "1em") | |
| .text(function(d) { return d.subtitle; }); | |
| d3.selectAll("button").on("click", function() { | |
| svg.datum(randomize).call(chart.duration(1000)); | |
| }); | |
| }); | |
| function randomize(d) { | |
| if (!d.randomizer) d.randomizer = randomizer(d); | |
| d.markers = d.markers.map(d.randomizer); | |
| d.measures = d.measures.map(d.randomizer); | |
| return d; | |
| } | |
| function randomizer(d) { | |
| var k = d3.max(d.ranges) * .2; | |
| return function(d) { | |
| return Math.max(0, d + k * (Math.random() - .5)); | |
| }; | |
| } | |
| </script> | |
| </body> |
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