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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47 lines
880 B
47 lines
880 B
4 years ago
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module.exports = fromQuat;
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/**
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* Creates a matrix from a quaternion rotation.
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*
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* @param {mat4} out mat4 receiving operation result
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* @param {quat4} q Rotation quaternion
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* @returns {mat4} out
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*/
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function fromQuat(out, q) {
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var x = q[0], y = q[1], z = q[2], w = q[3],
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x2 = x + x,
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y2 = y + y,
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z2 = z + z,
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xx = x * x2,
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yx = y * x2,
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yy = y * y2,
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zx = z * x2,
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zy = z * y2,
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zz = z * z2,
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wx = w * x2,
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wy = w * y2,
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wz = w * z2;
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out[0] = 1 - yy - zz;
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out[1] = yx + wz;
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out[2] = zx - wy;
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out[3] = 0;
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out[4] = yx - wz;
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out[5] = 1 - xx - zz;
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out[6] = zy + wx;
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out[7] = 0;
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out[8] = zx + wy;
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out[9] = zy - wx;
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out[10] = 1 - xx - yy;
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out[11] = 0;
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out[12] = 0;
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out[13] = 0;
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out[14] = 0;
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out[15] = 1;
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return out;
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};
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