Rename 'ol/vec/Mat4' module to 'ol/vec/mat4'

src/ol/vec/mat4.js

@@ -0,0 +1,27 @@
+/**
+ * @module ol/vec/mat4
+ */
+
+
+/**
+ * @return {Array.<number>} 4x4 matrix representing a 3D identity transform.
+ */
+export function create() {
+  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.
+ */
+export function fromTransform(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;
+}