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9 lines
310 B
9 lines
310 B
1 year ago
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export default function piecewise(interpolate, values) {
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var i = 0, n = values.length - 1, v = values[0], I = new Array(n < 0 ? 0 : n);
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while (i < n) I[i] = interpolate(v, v = values[++i]);
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return function(t) {
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var i = Math.max(0, Math.min(n - 1, Math.floor(t *= n)));
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return I[i](t - i);
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};
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}
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