| 1 | "use strict";
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.basis = basis;
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| 7 | exports.default = _default;
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| 8 |
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| 9 | function basis(t1, v0, v1, v2, v3) {
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| 10 | var t2 = t1 * t1,
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| 11 | t3 = t2 * t1;
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| 12 | return ((1 - 3 * t1 + 3 * t2 - t3) * v0 + (4 - 6 * t2 + 3 * t3) * v1 + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2 + t3 * v3) / 6;
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| 13 | }
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| 14 |
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| 15 | function _default(values) {
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| 16 | var n = values.length - 1;
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| 17 | return function (t) {
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| 18 | var i = t <= 0 ? t = 0 : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),
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| 19 | v1 = values[i],
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| 20 | v2 = values[i + 1],
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| 21 | v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,
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| 22 | v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;
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| 23 | return basis((t - i / n) * n, v0, v1, v2, v3);
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| 24 | };
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| 25 | } |
| \ | No newline at end of file |