StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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44 lines
1.1 KiB
44 lines
1.1 KiB
module.exports = rotateY;
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/**
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* Rotates a matrix by the given angle around the Y axis
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*
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* @param {mat4} out the receiving matrix
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* @param {mat4} a the matrix to rotate
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* @param {Number} rad the angle to rotate the matrix by
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* @returns {mat4} out
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*/
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function rotateY(out, a, rad) {
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var s = Math.sin(rad),
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c = Math.cos(rad),
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a00 = a[0],
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a01 = a[1],
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a02 = a[2],
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a03 = a[3],
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a20 = a[8],
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a21 = a[9],
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a22 = a[10],
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a23 = a[11];
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if (a !== out) { // If the source and destination differ, copy the unchanged rows
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out[4] = a[4];
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out[5] = a[5];
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out[6] = a[6];
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out[7] = a[7];
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out[12] = a[12];
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out[13] = a[13];
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out[14] = a[14];
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out[15] = a[15];
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}
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// Perform axis-specific matrix multiplication
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out[0] = a00 * c - a20 * s;
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out[1] = a01 * c - a21 * s;
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out[2] = a02 * c - a22 * s;
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out[3] = a03 * c - a23 * s;
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out[8] = a00 * s + a20 * c;
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out[9] = a01 * s + a21 * c;
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out[10] = a02 * s + a22 * c;
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out[11] = a03 * s + a23 * c;
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return out;
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}; |