Update polyline.class.js

Mirror polygon changes

src/shapes/polyline.class.js

@@ -32,6 +32,20 @@
      */
     points: null,
 
+    /**
+     * Minimum X from points values, necessary to offset points
+     * @type Number
+     * @default
+     */
+    minX: 0,
+
+    /**
+     * Minimum Y from points values, necessary to offset points
+     * @type Number
+     * @default
+     */
+    minY: 0,
+
     /**
      * Constructor
      * @param {Array} points Array of points (where each point is an object with x and y)
@@ -53,10 +67,7 @@
      * });
      */
     initialize: function(points, options) {
-      options = options || { };
-      this.set('points', points);
-      this.callSuper('initialize', options);
-      this._calcDimensions();
+      return fabric.Polygon.prototype.initialize.call(this, points, options);
     },
 
     /**