diff --git a/lib/polygon/__init__.py b/lib/polygon/__init__.py
new file mode 100644
index 0000000..5d020f8
--- /dev/null
+++ b/lib/polygon/__init__.py
@@ -0,0 +1,17 @@
+from poly import PolyPolygon
+
+Polygon = PolyPolygon
+
+
+if __name__ == "__main__":	
+	p = Polygon([[(0,0),(30,0),(15,30)]])
+	print 'p', p.area()
+	q = Polygon([[(10,5),(30,0),(15,20)]])
+	print 'q', q.area()
+	print 'p+q', (p+q).area()
+	print 'p-q', (p-q).area()
+	print 'p&q', (p&q).area()	
+	print 'p|q', (p|q).area()
+
+
+
diff --git a/lib/polygon/base.py b/lib/polygon/base.py
new file mode 100644
index 0000000..4675ee3
--- /dev/null
+++ b/lib/polygon/base.py
@@ -0,0 +1,57 @@
+"""
+    kartograph - a svg mapping library 
+    Copyright (C) 2011  Gregor Aisch
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+
+class AbstractPolygon(object):
+	"""
+	all polygon implementation will implement this interface
+	"""
+	def __init__(self, contours=None, data=None):
+		self.data = data
+		
+	def __len__(self):
+		raise NotImplementedError
+		
+	def __getitem__(self, key):
+		raise NotImplementedError
+
+	def addContour(self, contour):
+		raise NotImplementedError
+		
+	def __and__(self, other):
+		raise NotImplementedError
+
+	def __or__(self, other):
+		raise NotImplementedError
+
+	def __add__(self, other):
+		return self.__or__(other)
+		
+	def __sub__(self, other):
+		raise NotImplementedError
+				
+	def area(self):
+		raise NotImplementedError
+	
+	def center(self):
+		raise NotImplementedError
+		
+	def isInside(self, x, y):
+		raise NotImplementedError
+		
+		
\ No newline at end of file
diff --git a/lib/polygon.py b/lib/polygon/poly.py
similarity index 63%
rename from lib/polygon.py
rename to lib/polygon/poly.py
index a3fe75e..dc896ec 100644
--- a/lib/polygon.py
+++ b/lib/polygon/poly.py
@@ -14,50 +14,14 @@
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-"""
-
-
-class AbstractPolygon(object):
-	"""
-	all polygon implementation will implement this interface
-	"""
-	def __init__(self, contours=None, data=None):
-		self.data = data
-		
-	def __len__(self):
-		raise NotImplementedError
-		
-	def __getitem__(self, key):
-		raise NotImplementedError
-
-	def addContour(self, contour):
-		raise NotImplementedError
-		
-	def __and__(self, other):
-		raise NotImplementedError
-
-	def __or__(self, other):
-		raise NotImplementedError
-
-	def __add__(self, other):
-		return self.__or__(other)
-		
-	def __sub__(self, other):
-		raise NotImplementedError
-				
-	def area(self):
-		raise NotImplementedError
-	
-	def center(self):
-		raise NotImplementedError
-		
-	def isInside(self, x, y):
-		raise NotImplementedError
-		
+"""	
 
+from base import AbstractPolygon
 
 class PolyPolygon(AbstractPolygon):
 	"""
+	wrapper for python polygon package
+	
 	http://pypi.python.org/pypi/Polygon/2.0.4
 	http://www.j-raedler.de/projects/polygon/
 	"""
@@ -99,19 +63,3 @@ def center(self):
 	def isInside(self, x, y):
 		return self.poly.isInside(x,y)	
 		
-		
-
-Polygon = PolyPolygon
-
-
-
-if __name__ == "__main__":
-	
-	p = Polygon([[(0,0),(30,0),(15,30)]])
-	print 'p', p.area()
-	q = Polygon([[(10,5),(30,0),(15,20)]])
-	print 'q', q.area()
-	print 'p+q', (p+q).area()
-	print 'p-q', (p-q).area()
-	print 'p&q', (p&q).area()	
-	print 'p|q', (p|q).area()
\ No newline at end of file