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29 lines
760 B
29 lines
760 B
import {cubehelix as colorCubehelix} from "d3-color"; |
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import color, {hue} from "./color"; |
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function cubehelix(hue) { |
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return (function cubehelixGamma(y) { |
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y = +y; |
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function cubehelix(start, end) { |
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var h = hue((start = colorCubehelix(start)).h, (end = colorCubehelix(end)).h), |
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s = color(start.s, end.s), |
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l = color(start.l, end.l), |
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opacity = color(start.opacity, end.opacity); |
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return function(t) { |
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start.h = h(t); |
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start.s = s(t); |
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start.l = l(Math.pow(t, y)); |
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start.opacity = opacity(t); |
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return start + ""; |
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}; |
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} |
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cubehelix.gamma = cubehelixGamma; |
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return cubehelix; |
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})(1); |
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} |
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export default cubehelix(hue); |
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export var cubehelixLong = cubehelix(color);
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