28 lines
651 B
JavaScript
28 lines
651 B
JavaScript
/**
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* @module ol/vec/mat4
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*/
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/**
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* @return {Array.<number>} 4x4 matrix representing a 3D identity transform.
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*/
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export function create() {
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return [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];
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}
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/**
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* @param {Array.<number>} mat4 Flattened 4x4 matrix receiving the result.
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* @param {ol.Transform} transform Transformation matrix.
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* @return {Array.<number>} 2D transformation matrix as flattened 4x4 matrix.
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*/
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export function fromTransform(mat4, transform) {
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mat4[0] = transform[0];
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mat4[1] = transform[1];
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mat4[4] = transform[2];
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mat4[5] = transform[3];
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mat4[12] = transform[4];
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mat4[13] = transform[5];
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return mat4;
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}
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