added seperatestring representation of Vector instances

git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@645 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Geometry/Point.py

@@ -141,3 +141,6 @@ class Vector(Point):
             callback()
         self.reset_cache()
 
+    def __repr__(self):
+        return "Vector%d<%g,%g,%g>" % (self.id, self.x, self.y, self.z)
+