path: more collision support

Made depthparams an iterable.

src/Mod/Path/PathScripts/PathContour.py

@@ -178,21 +178,11 @@ class ObjectContour:
 
         simobj = None
         if getsim:
-            #from PathScripts.PathUtils import CollisionTester
-            parentJob = PathUtils.findParentJob(obj)
-            if parentJob is None:
-                pass
-            base = parentJob.Base
-            if base is None:
-                pass
-
             profileparams['Thicken'] = True #{'Fill':0, 'Coplanar':0, 'Project':True, 'SectionMode':2, 'Thicken':True}
             profileparams['ToolRadius']= self.radius - self.radius *.005
             profile.setParams(**profileparams)
-            sec = profile.makeSections(heights=[0.0])[0].getShape()
+            sec = profile.makeSections(mode=0, project=False, heights=depthparams.get_depths())[-1].getShape()
             simobj = sec.extrude(FreeCAD.Vector(0,0,baseobject.BoundBox.ZMax))
-            #c = CollisionTester()
-            #simobj = c.getCollisionSim(base.Shape, cutPath)
 
         return pp, simobj