all files / ol/vec/ mat4.js

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goog.provide('ol.vec.Mat4');
 
 
/**
 * @return {Array.<number>} 4x4 matrix representing a 3D identity transform.
 */
ol.vec.Mat4.create = function() {
  return [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];
};
 
 
/**
 * @param {Array.<number>} mat4 Flattened 4x4 matrix receiving the result.
 * @param {ol.Transform} transform Transformation matrix.
 * @return {Array.<number>} 2D transformation matrix as flattened 4x4 matrix.
 */
ol.vec.Mat4.fromTransform = function(mat4, transform) {
  mat4[0] = transform[0];
  mat4[1] = transform[1];
  mat4[4] = transform[2];
  mat4[5] = transform[3];
  mat4[12] = transform[4];
  mat4[13] = transform[5];
  return mat4;
};