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// Copyright: Matra-Datavision 1995
// File: BRepToIGES_BRShell.cxx
// Created: Mon Jan 30 11:46:12 1995
// Author: Marie Jose MARTZ
// <mjm>
//: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; // pour l`instant
Handle(IGESGeom_TrimmedSurface) TrimmedSurf = new IGESGeom_TrimmedSurface;
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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