openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
26 lines (21 loc) • 665 B
JavaScript
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;
};