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color scale test
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| license: mit |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| // Feel free to change or delete any of the code you see in this editor! | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500); | |
| var range = d3.range(-1, 1, 0.05); | |
| var padding = 2; | |
| var normalisedPadding = (padding * (range.length - 1) / range.length); | |
| var width = (svg.attr('width') / range.length) - normalisedPadding; | |
| var height = svg.attr('height') / 2; | |
| var colorScaleThreshold = d3.scale.threshold() | |
| .domain([-0.5, -0.15, 0, 0.15, 0.5]) | |
| // .domain([-0.5, -0.25, 0, 0.25, 0.5]) // Use this for equal buckets | |
| .range(["#e03d46", "#f4a098", "#f9cac6", '#d5e3f2', '#a2c1e1', '#579dd5']) | |
| var colorScaleLinear = d3.scale.linear() | |
| .domain([-0.5, -0.15, 0, 0.15, 0.5]) | |
| // .domain([-0.5, -0.25, 0, 0.25, 0.5]) // Use this for equal buckets | |
| .range(["#e03d46", "#f4a098", "#f9cac6", '#d5e3f2', '#a2c1e1', '#579dd5']) | |
| svg.selectAll('rect.threshold') | |
| .data(range) | |
| .enter() | |
| .append('rect') | |
| .classed('threshold', true) | |
| .attr('width', width) | |
| .attr('height', height) | |
| .attr('x', (d, i) => i * (width + padding)) | |
| .attr('y', 0) | |
| .attr('fill', (d) => colorScaleThreshold(d)); | |
| svg.selectAll('rect.linear') | |
| .data(range) | |
| .enter() | |
| .append('rect') | |
| .classed('linear', true) | |
| .attr('width', width) | |
| .attr('height', height) | |
| .attr('x', (d, i) => i * (width + padding)) | |
| .attr('y', height) | |
| .attr('fill', (d) => colorScaleLinear(d)); | |
| </script> | |
| </body> |
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