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OCCT/src/BRepToIGES/BRepToIGES_BRShell.cxx
abv d5f74e42d6 0024624: Lost word in license statement in source files 
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.
2014-02-20 16:15:17 +04:00

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// Created on: 1995-01-30
// Created by: Marie Jose MARTZ
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
//:n3 abv 8 Feb 99: PRO17820: BRepTools::OuterWire() -> ShapeAnalysis::OuterWire
//szv#4 S4163
#include <BRepToIGES_BRShell.ixx>
#include <BRepToIGES_BRWire.hxx>
#include <BRep_Tool.hxx>
#include <BRepTools.hxx>
#include <gp.hxx>
#include <gp_Trsf.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx>
#include <Geom_Surface.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_ToroidalSurface.hxx>
#include <GeomToIGES_GeomSurface.hxx>
#include <IGESBasic_Group.hxx>
#include <IGESData_HArray1OfIGESEntity.hxx>
#include <IGESData_IGESEntity.hxx>
#include <IGESGeom_CurveOnSurface.hxx>
#include <IGESGeom_HArray1OfCurveOnSurface.hxx>
#include <IGESGeom_TrimmedSurface.hxx>
#include <IGESGeom_SurfaceOfRevolution.hxx>
#include <Interface_Macros.hxx>
#include <TColStd_HSequenceOfTransient.hxx>
#include <TopLoc_Location.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Shape.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <ShapeAlgo.hxx>
#include <ShapeAlgo_AlgoContainer.hxx>
#include <Message_ProgressIndicator.hxx>
#include <Transfer_FinderProcess.hxx>
//=============================================================================
// BRepToIGES_BRShell
//=============================================================================
BRepToIGES_BRShell::BRepToIGES_BRShell()
{
}
//=============================================================================
// BRepToIGES_BRShell
//=============================================================================
BRepToIGES_BRShell::BRepToIGES_BRShell
(const BRepToIGES_BREntity& BR)
: BRepToIGES_BREntity(BR)
{
}
//=============================================================================
// TransferShell
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRShell ::TransferShell(const TopoDS_Shape& start)
{
Handle(IGESData_IGESEntity) res;
if (start.IsNull()) return res;
if (start.ShapeType() == TopAbs_FACE) {
TopoDS_Face F = TopoDS::Face(start);
res = TransferFace(F);
}
else if (start.ShapeType() == TopAbs_SHELL) {
TopoDS_Shell S = TopoDS::Shell(start);
res = TransferShell(S);
}
else {
// message d`erreur
}
return res;
}
//=============================================================================
// TransferFace
//
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRShell ::TransferFace(const TopoDS_Face& start)
{
Handle(IGESData_IGESEntity) res;
Handle(Message_ProgressIndicator) progress = GetTransferProcess()->GetProgress();
if ( ! progress.IsNull() ) {
if ( progress->UserBreak() ) return res;
progress->Increment();
}
if ( start.IsNull()) {
return res;
}
//Standard_Integer Nb = 0; //szv#4:S4163:12Mar99 unused
Standard_Real Length = 1.;
Handle(IGESData_IGESEntity) ISurf;
// returns the face surface
// ------------------------
Handle(Geom_Surface) Surf = BRep_Tool::Surface(start);
Handle(Geom_Surface) Surf1;
if (!Surf.IsNull()) {
Standard_Real U1, U2, V1, V2;
// pour limiter les surfaces de base
BRepTools::UVBounds(start, U1, U2, V1, V2);
GeomToIGES_GeomSurface GS;
GS.SetModel(GetModel());
ISurf = GS.TransferSurface(Surf, U1, U2, V1, V2);
if (ISurf.IsNull()) {
AddWarning (start, "the basic surface is a null entity");
return res;
}
Length = GS.Length();
// modif mjm du 17/07/97
if (Surf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
DeclareAndCast(Geom_RectangularTrimmedSurface, rectang, Surf);
Surf1 = rectang->BasisSurface();
}
else
Surf1 = Surf;
}
// returns the wires of the face
// -----------------------------
BRepToIGES_BRWire BW(*this);
Standard_Integer Imode = 0;
Standard_Integer Iprefer = 0;
Handle(IGESData_IGESEntity) ICurve2d;
// pour explorer la face , il faut la mettre fORWARD.
TopoDS_Face myface = start;
Standard_Boolean IsReversed = Standard_False;
if (start.Orientation() == TopAbs_REVERSED) {
myface.Reverse();
IsReversed = Standard_True;
}
// outer wire
//:n3 TopoDS_Wire Outer = BRepTools::OuterWire(myface);
TopoDS_Wire Outer = ShapeAlgo::AlgoContainer()->OuterWire(myface); //:n3
Handle(IGESGeom_CurveOnSurface) IOuter = new IGESGeom_CurveOnSurface;
if (!Outer.IsNull()) {
Handle(IGESData_IGESEntity) ICurve3d =
BW.TransferWire(Outer, myface, ICurve2d, Length);
if ((!ICurve3d.IsNull()) && (!ICurve2d.IsNull())) Iprefer = 3;
if ((!ICurve3d.IsNull()) && (ICurve2d.IsNull())) Iprefer = 2;
if ((ICurve3d.IsNull()) && (!ICurve2d.IsNull())) Iprefer = 1;
IOuter -> Init (Imode, ISurf, ICurve2d, ICurve3d, Iprefer);
}
// inners wires
TopExp_Explorer Ex;
Handle(TColStd_HSequenceOfTransient) Seq = new TColStd_HSequenceOfTransient();
for (Ex.Init(myface,TopAbs_WIRE); Ex.More(); Ex.Next()) {
TopoDS_Wire W = TopoDS::Wire(Ex.Current());
Handle(IGESGeom_CurveOnSurface) Curve = new IGESGeom_CurveOnSurface;
if (W.IsNull()) {
AddWarning(start," an Wire is a null entity");
}
else if (!W.IsSame(Outer)) {
Handle(IGESData_IGESEntity) ICurve3d =
BW.TransferWire(W, myface, ICurve2d, Length);
if ((!ICurve3d.IsNull()) && (!ICurve2d.IsNull())) Iprefer = 3;
if ((!ICurve3d.IsNull()) && (ICurve2d.IsNull())) Iprefer = 2;
if ((ICurve3d.IsNull()) && (!ICurve2d.IsNull())) Iprefer = 1;
Curve-> Init (Imode, ISurf, ICurve2d, ICurve3d, Iprefer);
if (!Curve.IsNull()) Seq->Append(Curve);
}
}
// all inners edges not in a wire
for (Ex.Init(myface,TopAbs_EDGE,TopAbs_WIRE); Ex.More(); Ex.Next()) {
TopoDS_Edge E = TopoDS::Edge(Ex.Current());
Handle(IGESGeom_CurveOnSurface) Curve = new IGESGeom_CurveOnSurface;
if (E.IsNull()) {
AddWarning(start," an Edge is a null entity");
}
else {
Handle(IGESData_IGESEntity) ICurve3d = BW.TransferEdge(E, Standard_False);
Handle(IGESData_IGESEntity) newICurve2d = BW.TransferEdge(E, myface, Length, Standard_False);
if ((!ICurve3d.IsNull()) && (!newICurve2d.IsNull())) Iprefer = 3;
if ((!ICurve3d.IsNull()) && (newICurve2d.IsNull())) Iprefer = 2;
if ((ICurve3d.IsNull()) && (!newICurve2d.IsNull())) Iprefer = 1;
Curve-> Init (Imode, ISurf, newICurve2d, ICurve3d, Iprefer);
if (!Curve.IsNull()) Seq->Append(Curve);
}
}
Standard_Integer nbent = Seq->Length();
Handle(IGESGeom_HArray1OfCurveOnSurface) Tab;
if (nbent >=1) {
Tab = new IGESGeom_HArray1OfCurveOnSurface(1,nbent);
for (Standard_Integer itab = 1; itab <= nbent; itab++) {
Handle(IGESGeom_CurveOnSurface) item = GetCasted(IGESGeom_CurveOnSurface, Seq->Value(itab));
Tab->SetValue(itab,item);
}
}
// returns the TrimmedSurface
// --------------------------
Standard_Boolean Flag = Standard_True;
Handle(IGESGeom_TrimmedSurface) TrimmedSurf = new IGESGeom_TrimmedSurface;
if (BRep_Tool::NaturalRestriction(start)) {
//if face bounds and surface bounds are same, outer wire is unnecessary
Standard_Boolean Flag = Standard_False;
TrimmedSurf-> Init (ISurf, Flag, NULL, Tab);
}
else
TrimmedSurf-> Init (ISurf, Flag, IOuter, Tab);
res = TrimmedSurf;
if (IsReversed) myface.Reverse();
SetShapeResult ( start, res );
return res;
}
//=============================================================================
// TransferShell
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRShell::TransferShell(const TopoDS_Shell& start)
{
Handle(IGESData_IGESEntity) res;
if ( start.IsNull()) return res;
TopExp_Explorer Ex;
Handle(IGESBasic_Group) IGroup = new IGESBasic_Group;
Handle(TColStd_HSequenceOfTransient) Seq = new TColStd_HSequenceOfTransient();
Handle(IGESData_IGESEntity) IFace;
for (Ex.Init(start,TopAbs_FACE); Ex.More(); Ex.Next()) {
TopoDS_Face F = TopoDS::Face(Ex.Current());
if (F.IsNull()) {
AddWarning(start," a Face is a null entity");
}
else {
IFace = TransferFace(F);
if (!IFace.IsNull()) Seq->Append(IFace);
}
}
Standard_Integer nbfaces = Seq->Length();
Handle(IGESData_HArray1OfIGESEntity) Tab;
if ( nbfaces >= 1) {
Tab = new IGESData_HArray1OfIGESEntity(1,nbfaces);
for (Standard_Integer itab = 1; itab <= nbfaces; itab++) {
Handle(IGESData_IGESEntity) item = GetCasted(IGESData_IGESEntity, Seq->Value(itab));
Tab->SetValue(itab,item);
}
}
if (nbfaces == 1) {
res = IFace;
}
else {
IGroup->Init(Tab);
res = IGroup;
}
SetShapeResult ( start, res );
return res;
}
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