increased default accuracy of arc composition

git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@964 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Geometry/__init__.py

@@ -81,7 +81,7 @@ def get_angle_pi(p1, p2, p3, up_vector, pi_factor=False):
     else:
         return angle
 
-def get_points_of_arc(center, radius, a1, a2, plane=None, cords=16):
+def get_points_of_arc(center, radius, a1, a2, plane=None, cords=32):
     """ return the points for an approximated arc
 
     @param center: center of the circle