1 // Created on: 1996-01-25
2 // Created by: Frederic MAUPAS
3 // Copyright (c) 1996-1999 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.
18 #include <Geom_ConicalSurface.hxx>
19 #include <Geom_CylindricalSurface.hxx>
20 #include <Geom_Plane.hxx>
21 #include <Geom_RectangularTrimmedSurface.hxx>
22 #include <Geom_SphericalSurface.hxx>
23 #include <Geom_SurfaceOfRevolution.hxx>
24 #include <Geom_ToroidalSurface.hxx>
25 #include <StepGeom_RectangularTrimmedSurface.hxx>
26 #include <StepToGeom_MakeRectangularTrimmedSurface.hxx>
27 #include <StepToGeom_MakeSurface.hxx>
28 #include <UnitsMethods.hxx>
30 //=============================================================================
31 // Creation d' une RectangularTrimmedSurface de Geom a partir d' une
32 // RectangularTrimmedSurface de Step
33 //=============================================================================
34 Standard_Boolean StepToGeom_MakeRectangularTrimmedSurface::Convert (const Handle(StepGeom_RectangularTrimmedSurface)& SS,
35 Handle(Geom_RectangularTrimmedSurface)& CS)
37 Handle(Geom_Surface) theBasis;
38 if (StepToGeom_MakeSurface::Convert(SS->BasisSurface(),theBasis))
40 // -----------------------------------------
41 // Modification of the Trimming Parameters ?
42 // -----------------------------------------
44 Standard_Real uFact = 1.;
45 Standard_Real vFact = 1.;
46 const Standard_Real LengthFact = UnitsMethods::LengthFactor();
47 const Standard_Real AngleFact = UnitsMethods::PlaneAngleFactor(); // abv 30.06.00 trj4_k1_geo-tc-214.stp #1477: PI/180.;
49 if (theBasis->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ||
50 theBasis->IsKind(STANDARD_TYPE(Geom_ToroidalSurface))) {
51 uFact = vFact = AngleFact;
53 else if (theBasis->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) {
57 else if ( theBasis->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
60 else if (theBasis->IsKind(STANDARD_TYPE(Geom_ConicalSurface))) {
61 const Handle(Geom_ConicalSurface) conicS = Handle(Geom_ConicalSurface)::DownCast(theBasis);
63 vFact = LengthFact / Cos(conicS->SemiAngle());
65 else if (theBasis->IsKind(STANDARD_TYPE(Geom_Plane))) {
66 uFact = vFact = LengthFact;
69 const Standard_Real U1 = SS->U1() * uFact;
70 const Standard_Real U2 = SS->U2() * uFact;
71 const Standard_Real V1 = SS->V1() * vFact;
72 const Standard_Real V2 = SS->V2() * vFact;
74 CS = new Geom_RectangularTrimmedSurface(theBasis, U1, U2, V1, V2, SS->Usense(), SS->Vsense());
77 return Standard_False;