Merge pull request #3700 from etrombly/deletedFaces

[Path] handle makeOffset2D exception in path pocket operation

src/Mod/Path/PathScripts/PathPocketShape.py

@@ -102,7 +102,10 @@ def extendWire(feature, wire, length):
     '''extendWire(wire, length) ... return a closed Wire which extends wire by length'''
     PathLog.track(length)
     if length and length != 0:
-        off2D = wire.makeOffset2D(length)
+        try:
+            off2D = wire.makeOffset2D(length)
+        except FreeCAD.Base.FreeCADError:
+            return None
         endPts = endPoints(wire)
         if endPts:
             edges = [e for e in off2D.Edges if Part.Circle != type(e.Curve) or not includesPoint(e.Curve.Center, endPts)]

src/Mod/Path/PathScripts/PathPocketShapeGui.py

@@ -76,7 +76,10 @@ class _Extension(object):
         hnt = coin.SoShapeHints()
 
         if not ext is None:
-            wire =  ext.getWire()
+            try:
+                wire =  ext.getWire()
+            except FreeCAD.Base.FreeCADError:
+                wire = None
             if wire:
                 if isinstance(wire, (list, tuple)):
                     p0 = [p for p in wire[0].discretize(Deflection=0.02)]