diff --git a/src/basic/Point.js b/src/basic/Point.js
index 66b87913..ffd6e85b 100644
--- a/src/basic/Point.js
+++ b/src/basic/Point.js
@@ -142,19 +142,20 @@ var Point = Base.extend(/** @lends Point# */{
             if (this.__read)
                 this.__read = arg0 === null ? 1 : 0;
         } else {
-            if (Array.isArray(arg0)) {
-                this.x = arg0[0];
-                this.y = arg0.length > 1 ? arg0[1] : arg0[0];
-            } else if (arg0.x != null) {
-                this.x = arg0.x;
-                this.y = arg0.y;
-            } else if (arg0.width != null) {
-                this.x = arg0.width;
-                this.y = arg0.height;
-            } else if (arg0.angle != null) {
-                this.x = arg0.length;
+            var obj = type === 'string' ? arg0.split(/[\s,]+/) || [] : arg0;
+            if (Array.isArray(obj)) {
+                this.x = obj[0];
+                this.y = obj.length > 1 ? obj[1] : obj[0];
+            } else if ('x' in obj) {
+                this.x = obj.x;
+                this.y = obj.y;
+            } else if ('width' in obj) {
+                this.x = obj.width;
+                this.y = obj.height;
+            } else if ('angle' in obj) {
+                this.x = obj.length;
                 this.y = 0;
-                this.setAngle(arg0.angle);
+                this.setAngle(obj.angle);
             } else {
                 this.x = this.y = 0;
                 if (this.__read)
diff --git a/src/basic/Size.js b/src/basic/Size.js
index da1a3781..65786c1b 100644
--- a/src/basic/Size.js
+++ b/src/basic/Size.js
@@ -105,15 +105,16 @@ var Size = Base.extend(/** @lends Size# */{
             if (this.__read)
                 this.__read = arg0 === null ? 1 : 0;
         } else {
-            if (Array.isArray(arg0)) {
-                this.width = arg0[0];
-                this.height = arg0.length > 1 ? arg0[1] : arg0[0];
-            } else if (arg0.width != null) {
-                this.width = arg0.width;
-                this.height = arg0.height;
-            } else if (arg0.x != null) {
-                this.width = arg0.x;
-                this.height = arg0.y;
+            var obj = type === 'string' ? arg0.split(/[\s,]+/) || [] : arg0;
+            if (Array.isArray(obj)) {
+                this.width = obj[0];
+                this.height = obj.length > 1 ? obj[1] : obj[0];
+            } else if ('width' in obj) {
+                this.width = obj.width;
+                this.height = obj.height;
+            } else if ('x' in obj) {
+                this.width = obj.x;
+                this.height = obj.y;
             } else {
                 this.width = this.height = 0;
                 if (this.__read)
diff --git a/test/tests/Point.js b/test/tests/Point.js
index 71a4e94d..9206648d 100644
--- a/test/tests/Point.js
+++ b/test/tests/Point.js
@@ -31,18 +31,21 @@ test('new Point({x: 10, y: 20})', function() {
 });
 
 test('new Point(new Size(10, 20))', function() {
-    var point = new Point(new Size(10, 20));
-    equals(point, new Point(10, 20));
+    equals(new Point(new Size(10, 20)), new Point(10, 20));
 });
 
 test('new Point({ width: 10, height: 20})', function() {
-    var point = new Point({width: 10, height: 20});
-    equals(point, new Point(10, 20));
+    equals(new Point({width: 10, height: 20}), new Point(10, 20));
 });
 
 test('new Point({ angle: 45, length: 20})', function() {
-    var point = new Point({ angle: 40, length: 20 });
-    equals(point, new Point(15.32089, 12.85575));
+    equals(new Point({ angle: 40, length: 20 }), new Point(15.32089, 12.85575));
+});
+
+test('new Point("10, 20")', function() {
+    equals(new Point('10, 20'), new Point(10, 20));
+    equals(new Point('10,20'), new Point(10, 20));
+    equals(new Point('10 20'), new Point(10, 20));
 });
 
 test('normalize(length)', function() {
diff --git a/test/tests/Size.js b/test/tests/Size.js
index bb953a7d..ee5871ff 100644
--- a/test/tests/Size.js
+++ b/test/tests/Size.js
@@ -36,3 +36,9 @@ test('new Size({ x: 10, y: 20})', function() {
     var size = new Size({x: 10, y: 20});
     equals(size.toString(), '{ width: 10, height: 20 }');
 });
+
+test('new Size("10, 20")', function() {
+    equals(new Size('10, 20'), new Size(10, 20));
+    equals(new Size('10,20'), new Size(10, 20));
+    equals(new Size('10 20'), new Size(10, 20));
+});