removed erroneous usage of epsilon (introduced by me in r569) in cutter collision detection

git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@714 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Cutters/BaseCutter.py

@@ -151,7 +151,7 @@ class BaseCutter(object):
 
     def intersect_cylinder_vertex(self, direction, point):
         (cl, ccp, cp, l) = self.intersect_cylinder_point(direction, point)
-        if ccp and ccp.z < self.center.z + epsilon:
+        if ccp and ccp.z < self.center.z:
             return (None, INFINITE, None)
         return (cl, l, cp)
 
@@ -171,7 +171,7 @@ class BaseCutter(object):
         m = cp.sub(edge.p1).dot(edge.dir)
         if (m < -epsilon) or (m > edge.len + epsilon):
             return (None, INFINITE, None)
-        if ccp.z < self.center.z + epsilon:
+        if ccp.z < self.center.z:
             return (None, INFINITE, None)
         return (cl, l, cp)
 

src/pycam/Cutters/CylindricalCutter.py

@@ -21,7 +21,7 @@ You should have received a copy of the GNU General Public License
 along with PyCAM.  If not, see <http://www.gnu.org/licenses/>.
 """
 
-from pycam.Geometry.utils import INFINITE, sqrt, epsilon
+from pycam.Geometry.utils import INFINITE, sqrt
 from pycam.Geometry.Point import Point, Vector
 from pycam.Geometry.intersection import intersect_circle_plane, \
         intersect_circle_point, intersect_circle_line

src/pycam/Cutters/ToroidalCutter.py

@@ -201,7 +201,7 @@ class ToroidalCutter(BaseCutter):
 
     def intersect_cylinder_edge(self, direction, edge):
         (cl, ccp, cp, l) = self.intersect_cylinder_line(direction, edge)
-        if ccp and ccp.z < self.center.z - epsilon:
+        if ccp and ccp.z < self.center.z:
             return (None, INFINITE, None)
         if ccp:
             m = cp.sub(edge.p1).dot(edge.dir)