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// File: TopoDSToStep_MakeStepEdge.cxx
// Created: Wed Nov 30 14:25:33 1994
// Author: Frederic MAUPAS
// <fma@bibox>
#include <TopoDSToStep_MakeStepEdge.ixx>
#include <TopoDSToStep_MakeStepVertex.hxx>
#include <Geom_Line.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Surface.hxx>
#include <Geom_Plane.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom2d_Line.hxx>
#include <gp_Vec.hxx>
#include <BRepLib.hxx>
#include <BRep_Tool.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <StepShape_Vertex.hxx>
#include <StepShape_EdgeCurve.hxx>
#include <StepGeom_Curve.hxx>
#include <StepGeom_HArray1OfPcurveOrSurface.hxx>
#include <StepGeom_SeamCurve.hxx>
#include <StepGeom_SurfaceCurve.hxx>
#include <GeomToStep_MakeCurve.hxx>
#include <GeomToStep_MakeLine.hxx>
#include <Adaptor3d_CurveOnSurface.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <TopExp_Explorer.hxx>
#include <TopExp.hxx>
#include <TransferBRep_ShapeMapper.hxx>
#include <TCollection_HAsciiString.hxx>
// Processing of non-manifold topology (ssv; 11.11.2010)
#include <TransferBRep.hxx>
#include <Interface_Static.hxx>
// ----------------------------------------------------------------------------
// Constructors
// ----------------------------------------------------------------------------
TopoDSToStep_MakeStepEdge::TopoDSToStep_MakeStepEdge()
{
done = Standard_False;
}
TopoDSToStep_MakeStepEdge::TopoDSToStep_MakeStepEdge
(const TopoDS_Edge& E,
TopoDSToStep_Tool& T,
const Handle(Transfer_FinderProcess)& FP)
{
done = Standard_False;
Init(E, T, FP);
}
// ----------------------------------------------------------------------------
// Method : Init
// Purpose :
// ----------------------------------------------------------------------------
void TopoDSToStep_MakeStepEdge::Init(const TopoDS_Edge& aEdge,
TopoDSToStep_Tool& aTool,
const Handle(Transfer_FinderProcess)& FP)
{
// ------------------------------------------------------------------
// The edge is given with its relative orientation (i.e. in the wire)
// ------------------------------------------------------------------
aTool.SetCurrentEdge(aEdge);
// [BEGIN] Processing non-manifold topology (ssv; 11.11.2010)
Standard_Boolean isNMMode = Interface_Static::IVal("write.step.nonmanifold");
if (isNMMode) {
Handle(StepShape_EdgeCurve) anEC;
Handle(TransferBRep_ShapeMapper) aSTEPMapper = TransferBRep::ShapeMapper(FP, aEdge);
if ( FP->FindTypedTransient(aSTEPMapper, STANDARD_TYPE(StepShape_EdgeCurve), anEC) ) {
// Non-manifold topology detected
myError = TopoDSToStep_EdgeDone;
myResult = anEC;
done = Standard_True;
return;
}
}
// [END] Processing non-manifold topology (ssv; 11.11.2010)
if (aTool.IsBound(aEdge)) {
myError = TopoDSToStep_EdgeDone;
done = Standard_True;
myResult = aTool.Find(aEdge);
return;
}
#define Nbpt 21
TopoDS_Iterator It;
Standard_Integer i;
Standard_Real U, U1, U2;
gp_Pnt P;
Standard_Boolean isSeam = BRep_Tool::IsClosed(aEdge, aTool.CurrentFace());
//:i4 abv 02 Sep 98: ProSTEP TR8 Motor.rle f3 & f62: check that edge
// participates twice in the wires of the face before making it seam
// (else it can have two pcurves on the same surface being shared by
// two faces on that surface)
// This fix is necessary because sharing of surfaces is not preserved when
// writing faces to STEP (see TopoDSToSTEP_MakeStepFace)
if ( isSeam ) {
Standard_Integer count = 0;
TopExp_Explorer exp ( aTool.CurrentFace(), TopAbs_EDGE );
for ( ; exp.More(); exp.Next() )
if ( aEdge.IsSame ( exp.Current() ) ) count++;
if ( count < 2 ) isSeam = Standard_False;
}
BRepAdaptor_Curve CA = BRepAdaptor_Curve(aEdge);
BRepAdaptor_Surface SA = BRepAdaptor_Surface(aTool.CurrentFace());
if (aEdge.Orientation() == TopAbs_INTERNAL ||
aEdge.Orientation() == TopAbs_EXTERNAL ) {
Handle(TransferBRep_ShapeMapper) errShape =
new TransferBRep_ShapeMapper(aEdge);
FP->AddWarning(errShape, " Edge(internal/external) from Non Manifold Topology");
myError = TopoDSToStep_NonManifoldEdge;
done = Standard_False;
return;
}
// Vertices
Handle(StepShape_Vertex) V1,V2;
Handle(StepShape_TopologicalRepresentationItem) Gpms2;
TopoDS_Vertex Vfirst, Vlast;
TopExp::Vertices(aEdge,Vfirst, Vlast);
TopoDSToStep_MakeStepVertex MkVertex;
MkVertex.Init(Vfirst, aTool, FP);
if (MkVertex.IsDone())
V1 = Handle(StepShape_Vertex)::DownCast(MkVertex.Value());
else {
Handle(TransferBRep_ShapeMapper) errShape =
new TransferBRep_ShapeMapper(aEdge);
FP->AddWarning(errShape, " First Vertex of Edge not mapped");
myError = TopoDSToStep_EdgeOther;
done = Standard_False;
return;
}
MkVertex.Init(Vlast, aTool, FP);
if (MkVertex.IsDone())
V2 = Handle(StepShape_Vertex)::DownCast(MkVertex.Value());
else {
Handle(TransferBRep_ShapeMapper) errShape =
new TransferBRep_ShapeMapper(aEdge);
FP->AddWarning(errShape, " Last Vertex of Edge not mapped");
myError = TopoDSToStep_EdgeOther;
done = Standard_False;
return;
}
// ---------------------------------------
// Translate 3D representation of the Edge
// ---------------------------------------
Handle(StepGeom_Curve) Gpms;
Handle(Geom_Curve) C = CA.Curve().Curve();
if (!C.IsNull()) {
C = Handle(Geom_Curve)::DownCast(C->Copy());
gp_Trsf Tr1 = CA.Trsf();
C->Transform(Tr1);
GeomToStep_MakeCurve MkCurve(C);
Gpms = MkCurve.Value();
}
else {
// -------------------------
// a 3D Curve is constructed
// -------------------------
#ifdef DEB
cout << "Warning: TopoDSToStep_MakeStepEdge: edge without 3d curve; creating..." << endl;
#endif
if ((SA.GetType() == GeomAbs_Plane) &&
(CA.GetType() == GeomAbs_Line)) {
U1 = CA.FirstParameter();
U2 = CA.LastParameter();
gp_Vec V = gp_Vec( CA.Value(U1), CA.Value(U2) );
Handle(Geom_Line) L =
new Geom_Line(CA.Value(U1), gp_Dir(V));
GeomToStep_MakeLine MkLine(L);
Gpms = MkLine.Value();
}
else {
// To Be Optimized : create an approximated BSpline
// using GeomAPI_PointsToBSpline
TColgp_Array1OfPnt Points(1,Nbpt);
TColStd_Array1OfReal Knots(1,Nbpt);
TColStd_Array1OfInteger Mult(1,Nbpt);
U1 = CA.FirstParameter();
U2 = CA.LastParameter();
for ( i=1; i<=Nbpt; i++ ) {
U = U1 + (i-1)*(U2 - U1)/(Nbpt - 1);
P = CA.Value(U);
Points.SetValue(i,P);
Knots.SetValue(i,U);
Mult.SetValue(i,1);
}
//Points.SetValue(1, BRep_Tool::Pnt(Vfirst));
//Points.SetValue(Nbpt, BRep_Tool::Pnt(Vlast));
Mult.SetValue(1,2);
Mult.SetValue(Nbpt,2);
Handle(Geom_BSplineCurve) Bs =
new Geom_BSplineCurve(Points, Knots, Mult, 1);
GeomToStep_MakeCurve MkCurve(Bs);
Gpms = MkCurve.Value();
}
}
// ---------------------------------------------------------
// Warning : if the edge is connected aGeom->Length = 2
// otherwise = 1 ;
// and enumeration is pscrPcurveS2 or pscrPcurveS1
// This is corrected in the Write File phases !
// ---------------------------------------------------------
//:abv 25.01.00 CAX-IF TRJ3
// if PcurveMode is 1 (default), make surface_curve instead of simple 3d curve
if ( aTool.PCurveMode() != 0 ) {
Handle(StepGeom_HArray1OfPcurveOrSurface) aGeom =
new StepGeom_HArray1OfPcurveOrSurface(1,2);
Handle(TCollection_HAsciiString) aName = new TCollection_HAsciiString("");
if (!isSeam) {
Handle(StepGeom_SurfaceCurve) SurfaceCurve = new StepGeom_SurfaceCurve;
SurfaceCurve->Init(aName, Gpms, aGeom, StepGeom_pscrPcurveS1);
Gpms = SurfaceCurve;
}
else {
Handle(StepGeom_SeamCurve) SeamCurve = new StepGeom_SeamCurve;
SeamCurve->Init(aName, Gpms, aGeom, StepGeom_pscrPcurveS1);
Gpms = SeamCurve;
}
}
// Edge curve
Handle(StepShape_EdgeCurve) Epms = new StepShape_EdgeCurve;
Handle(TCollection_HAsciiString) aName = new TCollection_HAsciiString("");
Epms->Init(aName, V1, V2, Gpms, Standard_True);
aTool.Bind(aEdge, Epms);
myError = TopoDSToStep_EdgeDone;
myResult = Epms;
done = Standard_True;
return;
}
// ----------------------------------------------------------------------------
// Method : Value
// Purpose :
// ----------------------------------------------------------------------------
const Handle(StepShape_TopologicalRepresentationItem)& TopoDSToStep_MakeStepEdge::Value() const
{
StdFail_NotDone_Raise_if(!done,"");
return myResult;
}
// ----------------------------------------------------------------------------
// Method : Error
// Purpose :
// ----------------------------------------------------------------------------
TopoDSToStep_MakeEdgeError TopoDSToStep_MakeStepEdge::Error() const
{
return myError;
}
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