1 // Created on: 1993-07-05
2 // Created by: Martine LANGLOIS
3 // Copyright (c) 1993-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 //:n7 abv 15.02.99: S4132: adding translation of surface_replica
18 //:p0 abv 19.02.99: management of 'done' flag improved
19 //:s5 abv 22.04.99 Adding debug printouts in catch {} blocks
20 //sln 03.10.01. BUC61003. creation of offset surface is corrected
22 #include <StepToGeom_MakeSurface.ixx>
23 #include <Standard_ErrorHandler.hxx>
24 #include <Standard_Failure.hxx>
25 #include <StepGeom_Surface.hxx>
26 #include <StepToGeom_MakeSurface.hxx>
27 #include <StepGeom_BoundedSurface.hxx>
28 #include <StepToGeom_MakeBoundedSurface.hxx>
29 #include <StepGeom_ElementarySurface.hxx>
30 #include <StepToGeom_MakeElementarySurface.hxx>
31 #include <StepGeom_SweptSurface.hxx>
32 #include <StepToGeom_MakeSweptSurface.hxx>
35 #include <StepGeom_OffsetSurface.hxx>
36 #include <Geom_OffsetSurface.hxx>
37 #include <StepGeom_SurfaceReplica.hxx>
38 #include <StepGeom_CartesianTransformationOperator3d.hxx>
39 #include <StepToGeom_MakeTransformation3d.hxx>
40 #include <UnitsMethods.hxx>
42 #include <BRepBuilderAPI_MakeFace.hxx>
43 #include <TopoDS_Face.hxx>
44 #include <ShapeAlgo.hxx>
45 #include <ShapeAlgo_AlgoContainer.hxx>
47 #include <BRep_Tool.hxx>
48 #include <gp_Trsf.hxx>
49 #include <Precision.hxx>
51 //=============================================================================
52 // Creation d' une Surface de Geom a partir d' une Surface de Step
53 //=============================================================================
55 Standard_Boolean StepToGeom_MakeSurface::Convert (const Handle(StepGeom_Surface)& SS, Handle(Geom_Surface)& CS)
57 // sln 01.10.2001 BUC61003. If entry shell is NULL do nothing
59 return Standard_False;
64 if (SS->IsKind(STANDARD_TYPE(StepGeom_BoundedSurface))) {
65 const Handle(StepGeom_BoundedSurface) S1 = Handle(StepGeom_BoundedSurface)::DownCast(SS);
66 return StepToGeom_MakeBoundedSurface::Convert(S1,*((Handle(Geom_BoundedSurface)*)&CS));
68 if (SS->IsKind(STANDARD_TYPE(StepGeom_ElementarySurface))) {
69 const Handle(StepGeom_ElementarySurface) S1 = Handle(StepGeom_ElementarySurface)::DownCast(SS);
70 if(S1->Position().IsNull())
71 return Standard_False;
73 return StepToGeom_MakeElementarySurface::Convert(S1,*((Handle(Geom_ElementarySurface)*)&CS));
75 if (SS->IsKind(STANDARD_TYPE(StepGeom_SweptSurface))) {
76 const Handle(StepGeom_SweptSurface) S1 = Handle(StepGeom_SweptSurface)::DownCast(SS);
77 return StepToGeom_MakeSweptSurface::Convert(S1,*((Handle(Geom_SweptSurface)*)&CS));
79 if (SS->IsKind(STANDARD_TYPE(StepGeom_OffsetSurface))) { //:d4 abv 12 Mar 98
80 const Handle(StepGeom_OffsetSurface) OS = Handle(StepGeom_OffsetSurface)::DownCast(SS);
81 Handle(Geom_Surface) aBasisSurface;
82 if (StepToGeom_MakeSurface::Convert(OS->BasisSurface(),aBasisSurface))
84 // sln 03.10.01. BUC61003. creation of offset surface is corrected
85 const Standard_Real anOffset = OS->Distance() * UnitsMethods::LengthFactor();
86 if (aBasisSurface->Continuity() == GeomAbs_C0)
88 const BRepBuilderAPI_MakeFace aBFace(aBasisSurface, Precision::Confusion());
91 const TopoDS_Shape aResult = ShapeAlgo::AlgoContainer()->C0ShapeToC1Shape(aBFace.Face(), Abs(anOffset));
92 if (aResult.ShapeType() == TopAbs_FACE)
94 aBasisSurface = BRep_Tool::Surface(TopoDS::Face(aResult));
98 if(aBasisSurface->Continuity() != GeomAbs_C0)
100 CS = new Geom_OffsetSurface ( aBasisSurface, anOffset );
101 return Standard_True;
105 else if (SS->IsKind(STANDARD_TYPE(StepGeom_SurfaceReplica))) { //:n7 abv 16 Feb 99
106 const Handle(StepGeom_SurfaceReplica) SR = Handle(StepGeom_SurfaceReplica)::DownCast(SS);
107 const Handle(StepGeom_Surface) PS = SR->ParentSurface();
108 const Handle(StepGeom_CartesianTransformationOperator3d) T =
109 Handle(StepGeom_CartesianTransformationOperator3d)::DownCast(SR->Transformation());
110 // protect against cyclic references and wrong type of cartop
111 if ( !T.IsNull() && PS != SS ) {
112 Handle(Geom_Surface) S1;
113 if (StepToGeom_MakeSurface::Convert(PS,S1))
116 if (StepToGeom_MakeTransformation3d::Convert(T,T1))
118 S1->Transform ( T1 );
120 return Standard_True;
126 catch(Standard_Failure) {
128 #ifdef OCCT_DEBUG //:s5
129 cout<<"Warning: StepToGeom_MakeSurface: Exception:";
130 Standard_Failure::Caught()->Print(cout); cout << endl;
133 return Standard_False;