Add layout and stride to ol.geom.Geometry

src/ol/geom/geometry.js

@@ -14,15 +14,33 @@ ol.geom.GeometryType = {
 };
 
 
+/**
+ * @enum {string}
+ */
+ol.geom.GeometryLayout = {
+  XY: 'XY',
+  XYZ: 'XYZ',
+  XYM: 'XYM',
+  XYZM: 'XYZM'
+};
+
+
 
 /**
  * @constructor
  * @extends {goog.events.EventTarget}
+ * @param {ol.geom.GeometryLayout=} opt_layout Layout.
  */
-ol.geom.Geometry = function() {
+ol.geom.Geometry = function(opt_layout) {
 
   goog.base(this);
 
+  /**
+   * @protected
+   * @type {ol.geom.GeometryLayout}
+   */
+  this.layout = goog.isDef(opt_layout) ? opt_layout : ol.geom.GeometryLayout.XY;
+
   /**
    * @protected
    * @type {number}
@@ -61,6 +79,14 @@ ol.geom.Geometry.prototype.dispatchChangeEvent = function() {
 ol.geom.Geometry.prototype.getExtent = goog.abstractMethod;
 
 
+/**
+ * @return {ol.geom.GeometryLayout} Layout.
+ */
+ol.geom.Geometry.prototype.getLayout = function() {
+  return this.layout;
+};
+
+
 /**
  * @return {number} Revision.
  */
@@ -69,6 +95,14 @@ ol.geom.Geometry.prototype.getRevision = function() {
 };
 
 
+/**
+ * @return {number} Stride.
+ */
+ol.geom.Geometry.prototype.getStride = function() {
+  return this.layout.length;
+};
+
+
 /**
  * @return {ol.geom.GeometryType} Geometry type.
  */