diff --git a/src/basic/Point.js b/src/basic/Point.js
index 969eda4e..1aa72435 100644
--- a/src/basic/Point.js
+++ b/src/basic/Point.js
@@ -477,8 +477,8 @@ var Point = Base.extend({
 			return point;
 		},
 
-		read: function(args, index) {
-			var index = index || 0, length = args.length - index;
+		read: function(args, index, length) {
+			var index = index || 0, length = length || args.length - index;
 			if (length == 1 && args[index] instanceof Point) {
 				return args[index];
 			} else if (length != 0) {
diff --git a/src/basic/Rectangle.js b/src/basic/Rectangle.js
index 35444ed7..72206e65 100644
--- a/src/basic/Rectangle.js
+++ b/src/basic/Rectangle.js
@@ -285,8 +285,8 @@ Rectangle = Base.extend({
 	},
 
 	statics: {
-		read: function(args, index) {
-			var index = index || 0, length = args.length - index;
+		read: function(args, index, length) {
+			var index = index || 0, length = length || args.length - index;
 			if (length == 1 && args[index] instanceof Rectangle) {
 				return args[index];
 			} else if (length != 0) {
diff --git a/src/basic/Size.js b/src/basic/Size.js
index dae7c3fe..aa8d3f70 100644
--- a/src/basic/Size.js
+++ b/src/basic/Size.js
@@ -94,8 +94,8 @@ var Size = Base.extend({
 	},
 
 	statics: {
-		read: function(args, index) {
-			var index = index || 0, length = args.length - index;
+		read: function(args, index, length) {
+			var index = index || 0, length = length || args.length - index;
 			if (length == 1 && args[index] instanceof Size) {
 				return args[index];
 			} else if (length != 0) {
diff --git a/src/color/Color.js b/src/color/Color.js
index d233caeb..771cd0d9 100644
--- a/src/color/Color.js
+++ b/src/color/Color.js
@@ -31,8 +31,8 @@ Color = Base.extend({
 	},
 	
 	statics: {
-		read: function(args, index) {
-			var index = index || 0, length = args.length - index;
+		read: function(args, index, length) {
+			var index = index || 0, length = length || args.length - index;
 			if (length == 1 && args[index] instanceof Color) {
 				return args[index];
 			} else if (length != 0 && args[0] !== null) {
diff --git a/src/path/Curve.js b/src/path/Curve.js
index d6ed51bc..435f810d 100644
--- a/src/path/Curve.js
+++ b/src/path/Curve.js
@@ -4,8 +4,8 @@ Curve = Base.extend({
 	
 	
 	statics: {
-		read: function(args, index) {
-			var index = index || 0, length = args.length - index;
+		read: function(args, index, length) {
+			var index = index || 0, length = length || args.length - index;
 			if (length == 1 && args[index] instanceof Curve) {
 				return args[index];
 			} else if (length != 0) {
diff --git a/src/path/Segment.js b/src/path/Segment.js
index 867f322e..e0ea1423 100644
--- a/src/path/Segment.js
+++ b/src/path/Segment.js
@@ -121,8 +121,8 @@ Segment = Base.extend({
 	},
 	
 	statics: {
-		read: function(args, index) {
-			var index = index || 0, length = args.length - index;
+		read: function(args, index, length) {
+			var index = index || 0, length = length || args.length - index;
 			if (length == 1 && args[index] instanceof Segment) {
 				return args[index];
 			} else if (length != 0) {