Hi there, I dont know how to update a shape in the viewer. As far as i know there is no EraseShape function, so i added one (dont know if Thomas has/will? added it to the svn, so see attachment). To use it, got to ..../site-packages/OCC/Display and backup OCCViewer.py and add the patched one. Hopefully you can now do display.EraseShape(someshape). Is a slightly quick and dirty fix, so cannot guarantee anything though.
Henrik Rudstrom On 16 February 2010 18:16, Willy Hertz <willy.he...@yahoo.com> wrote: > hi all, > i am pythonocc newbie, and my question may seem stupid. > > i try to modify a shape in the InteractiveVeiwer example from the pythonocc > samples, after it has been displayed using display.DisplayShape(shape). > the following code creates four edges of a rectangle in the plane z=0, and > one of the edges should be translated to z=10: > > p1=gp_Pnt(0,0,0); > p2=gp_Pnt(0,1,0); > p3=gp_Pnt(1,1,0); > p4=gp_Pnt(1,0,0); > e1=BRepBuilderAPI_MakeEdge(p1,p2).Edge() > e2=BRepBuilderAPI_MakeEdge(p2,p3).Edge() > e3=BRepBuilderAPI_MakeEdge(p3,p4).Edge() > e4=BRepBuilderAPI_MakeEdge(p4,p1).Edge() > trsf=gp_Trsf(); > trsf.SetTranslation(gp_Vec(0,0,10)); > display.DisplayShape(e1); > display.DisplayShape(e2); > display.DisplayShape(e3); > display.DisplayShape(e4); > e1.Move(TopLoc_Location(trsf)); > > this works like a charm, if i put the e1.Move(...) command before the > display.DisplayShape(...) commands. but not in the order above. > > how can i modify what is displayed, after a shape has already been > displayed? > > do i have to remove the modified shape, remove it from the display, and > create+display the modified shape again? then please tell me how to remove a > shape from the display. GraphicsCanva3D has the DisplayShape() function, but > except for EraseAll() there is no function to remove a singe shape? > > when answering please consider that i don't understand the pythonocc > concepts in great detail. please assume that i am as stupid as my question > ;) > > Willy > > > _______________________________________________ > Pythonocc-users mailing list > Pythonocc-users@gna.org > https://mail.gna.org/listinfo/pythonocc-users > >
OCCViewer.py
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