Tue, 05/07/2002 - 23:12
Hi every body...
I have problem with boolean operation, i know that there is a bug sometime but is it possible to know what is possible to do now.
I use openCascade4.0 on Linux. I read in the bug section that sometime ShapeFix_Shape can help (I try it and it change nothing).
Ok I have two solid shape, one is a
solid of revolution :
TopoDS_Shape Demidistributeur = BRepPrimAPI_MakeRevol(FaceXZ,AxeZ);
an the other is a prism :
TopoDS_Shape Passage = BRepPrimAPI_MakePrism(FaceXY,vecteur,Standard_False);
I have the bad result when i do :
TopoDS_Shape Bloc = BRepAlgoAPI_Common(DemiDistributeur,Passage);
It suppose to be a solid and it's only a surface.
Is it possible to know when the boolean operation work and when there is some problem...
Is fsameparameter or updatetolerance can help?
Any help would be very appreciate...
Genevieve
Wed, 05/08/2002 - 05:31
Perhaps you can "post" what are your FaceXZ, AxeZ, vecteur to be able to reproduce the problem.
Or besser, the DRAW commands.
Stephane
http://www.exotk.org
Wed, 05/08/2002 - 19:03
Ok Stephane, there is the information:
FaceXZ is a TopoDS_Face make with
BRepBuilderAPI_MakeFace(PlanXZ,Profil1,Standard_True);
PlanXZ = gp_Pln(gp_Pnt(0,0,0), gp_Dir(0,1,0) );
Profil1 is a closed wire make of 4 edges that are on the planXZ
AxeZ is the axe gp_Ax1(gp_Pnt(0,0,0), gp_Dir(0,0,1))
FaceXY is a TopoDS_Face make with
BRepBuilderAPI_MakeFace(PlanXY,Pr
ofil2,Standard_True);
PlanXY = gp_Pln(Profil2BSpline1->EndPoint(), gp_Dir(0,1,0) );
Profil2BSpline1 is a Geom_BSPline curve that is
one of the edge of Profil2.
Profil2 is a closed wire make of 4 edges that are on the planXY.
vecteur is a gp_Vec vecteur(gp_Pnt(0,0,Zvaleur1), gp_Pnt(0,0,Zvaleur2) );
The two solids (DemiDistributeur et Passage) intersects very well (on Display everything look great), but the Common operation return only a face. Futhermore, the BRepAlgoAPI_Section operation return all the good edges except the egde of the face return by the Common operation.
I very appreciate your help...
Genevieve who really don't know what to do
in Quebec...