2013/12/7 Blanding, Douglass <blandi...@corning.com> > Hi- > > I have just gotten started with pyOCC and have been working on converting > the (C++) OpenCascade bottle tutorial to python code as an exercise for > coming up to speed on pyOCC. I am using pyOCC version=0.6-beta. > > The problem I am having is: BRepAlgoAPI_Fuse() doesn't seem to work. (See > code appended below.) > > As I searched for an answer, I came across an old solution written by > Thomas Paviot at: > > > http://pythonocc.googlecode.com/svn-history/r72/trunk/tests/test_makebottle.pybut > this seems to have the same problem. > > Am I doing something wrong or is there something broken in my version of > pyOCC? > > - Doug > > > > > > File: OCC_BottleTutorial.py > > > > # Adaptation to python of OCC tutorial at: > > # http://www.opencascade.org/org/gettingstarted/appli > > # Also found 2008 solution by Thomas Paviot at: > > # > http://pythonocc.googlecode.com/svn-history/r72/trunk/tests/test_makebottle.py > > > > import math > > from OCC.Display.SimpleGui import * > > from OCC.gp import * > > from OCC.BRepPrimAPI import * > > from OCC.GC import * > > from OCC.TopoDS import * > > from OCC.BRepBuilderAPI import * > > from OCC.TopExp import * > > from OCC.TopAbs import * > > from OCC.BRepFilletAPI import * > > from OCC.BRepAlgoAPI import * > > from OCC.STEPControl import * > > > > display, start_display, add_menu, add_function_to_menu = init_display() > > > > # Bottle dimensions > > myHeight = 70 > > myWidth = 50 > > myThickness = 30 > > > > # Start with points defining the shape of half bottle > > aPnt1 = gp_Pnt(-myWidth / 2. , 0 , 0) > > aPnt2 = gp_Pnt(-myWidth / 2. , -myThickness / 4. , 0) > > aPnt3 = gp_Pnt(0 , -myThickness / 2. , 0) > > aPnt4 = gp_Pnt(myWidth / 2. , -myThickness / 4. , 0) > > aPnt5 = gp_Pnt(myWidth / 2. , 0 , 0) > > > > # Make lines defining the shape of half bottle > > aSegment1 = GC_MakeSegment(aPnt1, aPnt2) > > aSegment2 = GC_MakeSegment(aPnt4, aPnt5) > > aArcOfCircle = GC_MakeArcOfCircle(aPnt2, aPnt3, aPnt4) > > if aSegment1.IsDone(): > > seg1handle = aSegment1.Value() > > if aSegment2.IsDone(): > > seg2handle = aSegment2.Value() > > if aArcOfCircle.IsDone(): > > arc_handle = aArcOfCircle.Value() > > > > # Convert line segments to 'edges' > > aEdge1 = BRepBuilderAPI_MakeEdge(seg1handle).Edge() > > aEdge2 = BRepBuilderAPI_MakeEdge(arc_handle).Edge() > > aEdge3 = BRepBuilderAPI_MakeEdge(seg2handle).Edge() > > > > # Convert edges to wire > > aWire = BRepBuilderAPI_MakeWire(aEdge1, aEdge2, aEdge3).Wire() > > > > # Mirror wire and add to get 'whole' bottle > > mirrorTransform = gp_Trsf() > > mirrorTransform.SetMirror(gp_Pnt(0.0,0.0,0.0)) # I don't understand this > > mirrorWireShape = BRepBuilderAPI_Transform(aWire , mirrorTransform).Shape() > > wire = BRepBuilderAPI_MakeWire() > > wire.Add(aWire) > > mirrorWire = TopoDS.TopoDS().wire(mirrorWireShape) > > wire.Add(mirrorWire) > > > > # Make bottom face > > botFace = BRepBuilderAPI_MakeFace(wire.Wire()) > > if botFace.IsDone(): > > bottomFace = botFace.Face() > > > > # Extrude body of bottle > > bottle = BRepPrimAPI_MakePrism(bottomFace, gp_Vec(0, 0, myHeight)) > > if bottle.IsDone(): > > bottleShape = bottle.Shape() > > > > # Add fillets > > edgeExplorer = TopExp_Explorer(bottleShape, TopAbs_EDGE) > > mkFillet = BRepFilletAPI_MakeFillet(bottleShape) > > while edgeExplorer.More(): > > edg = edgeExplorer.Current() > > edge = TopoDS.TopoDS().edge(edg) > > mkFillet.Add(myThickness/12., edge) > > edgeExplorer.Next() > > myBody = mkFillet.Shape() > > > > # Body : Add the Neck > > neckLocation = gp_Pnt(0 , 0 , myHeight) > > neckNormal = gp().DZ() > > neckAx2 = gp_Ax2(neckLocation , neckNormal) > > myNeckRadius = myThickness / 4. > > myNeckHeight = myHeight / 10. > > MKCylinder = BRepPrimAPI_MakeCylinder(neckAx2 , myNeckRadius , > myNeckHeight) > > myNeck = MKCylinder.Shape() > > print type(myBody) > > print type(myNeck) > > #myBody = BRepAlgoAPI_Fuse(myBody , myNeck) #TypeError: 'BRepAlgoAPI_Fuse' > object is not iterable > > > > # Export to STEP > > step_export = STEPControl_Writer() > > step_export.Transfer(myBody,STEPControl_AsIs) > > step_export.Write('bottle.stp') > > > > display.DisplayColoredShape(myNeck, 'GREEN') > > display.DisplayColoredShape(myBody, 'RED') > > display.DisplayColoredShape(bottomFace, 'YELLOW') > > display.DisplayColoredShape(aWire, 'BLUE') > > start_display() > > > > > Hi Doug,
I will have a look at your code. As far as I remember, I never managed to get the bottle sample working. I don't even know if the related c++ code works as expected. Best Regards, Thomas
_______________________________________________ Pythonocc-users mailing list Pythonocc-users@gna.org https://mail.gna.org/listinfo/pythonocc-users
