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occt/src/BRepToIGES/BRepToIGES_BRWire.cxx
ika a9da59ffb6 0022715: Incorrect faces of the filleted cube after import from iges file
Writing and reading tabulated cylinders in IGES were changed in accordance of Type 122 (parametrization [0,1]x[0,1]

some cosmetic changes
Adding test cases for this fix
2012-12-28 17:59:09 +04:00

662 lines
21 KiB
C++
Executable File

// Created on: 1995-01-27
// Created by: Marie Jose MARTZ
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.
//:q4 abv 16.03.99: PRO17828 face 555: transform pcurves on SurfaceOfRevolution
//szv#4 S4163
//S4181 pdn implementing of writing IGES elementary surfaces.
#include <BRepToIGES_BRWire.ixx>
#include <BRep_Tool.hxx>
#include <BRepTools.hxx>
#include <BRepTools_WireExplorer.hxx>
#include <gp.hxx>
#include <gp_Ax2d.hxx>
#include <gp_Dir2d.hxx>
#include <gp_Pnt2d.hxx>
#include <gp_Trsf.hxx>
#include <gp_Trsf2d.hxx>
#include <Geom_CartesianPoint.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom_Curve.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_Plane.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_ToroidalSurface.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom2d_Line.hxx>
#include <GeomToIGES_GeomPoint.hxx>
#include <GeomToIGES_GeomCurve.hxx>
#include <Geom2dToIGES_Geom2dCurve.hxx>
#include <IGESData_HArray1OfIGESEntity.hxx>
#include <IGESData_IGESEntity.hxx>
#include <IGESData_IGESModel.hxx>
#include <IGESGeom_CompositeCurve.hxx>
#include <IGESGeom_Point.hxx>
#include <Interface_Macros.hxx>
#include <Precision.hxx>
#include <TColStd_HSequenceOfTransient.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Shape.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopAbs_Orientation.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <Interface_Static.hxx>
#include <ShapeBuild_Edge.hxx>
#include <Geom_OffsetSurface.hxx>
#include <ShapeExtend_WireData.hxx>
#include <ShapeFix_Wire.hxx>
//=============================================================================
// BRepToIGES_BRWire
//=============================================================================
BRepToIGES_BRWire::BRepToIGES_BRWire()
{
}
//=============================================================================
// BRepToIGES_BRWire
//=============================================================================
BRepToIGES_BRWire::BRepToIGES_BRWire
(const BRepToIGES_BREntity& BR)
: BRepToIGES_BREntity(BR)
{
}
//=============================================================================
// TransferWire
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferWire
(const TopoDS_Shape& start)
{
Handle(IGESData_IGESEntity) res;
if (start.IsNull()) return res;
if (start.ShapeType() == TopAbs_VERTEX) {
TopoDS_Vertex V = TopoDS::Vertex(start);
res = TransferVertex(V);
}
else if (start.ShapeType() == TopAbs_EDGE) {
TopoDS_Edge E = TopoDS::Edge(start);
res = TransferEdge(E, Standard_False);
}
else if (start.ShapeType() == TopAbs_WIRE) {
TopoDS_Wire W = TopoDS::Wire(start);
res = TransferWire(W);
}
else {
// error message
}
return res;
}
//=============================================================================
// TransferVertex
//
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferVertex
(const TopoDS_Vertex& myvertex)
{
Handle(IGESData_IGESEntity) res;
if ( myvertex.IsNull()) return res;
Handle(Geom_CartesianPoint) Point;
Point = new Geom_CartesianPoint(BRep_Tool::Pnt(myvertex));
Handle(IGESData_IGESEntity) IVertex;
if (!Point.IsNull()) {
GeomToIGES_GeomPoint GP;
GP.SetModel(GetModel());
IVertex = GP.TransferPoint(Point);
}
if (!IVertex.IsNull()) res = IVertex;
return res;
}
//=============================================================================
// TransferVertex
//
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferVertex
(const TopoDS_Vertex& myvertex,
const TopoDS_Edge& myedge,
Standard_Real& parameter)
{
Handle(IGESData_IGESEntity) res;
if ( myvertex.IsNull()) return res;
Handle(IGESData_IGESEntity) IVertex = TransferVertex(myvertex);
// returns the parameter of myvertex on myedge
parameter = BRep_Tool::Parameter(myvertex,myedge);
if (!IVertex.IsNull()) res = IVertex;
return res;
}
//=============================================================================
// TransferVertex
//
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferVertex
(const TopoDS_Vertex& myvertex,
const TopoDS_Edge& myedge,
const TopoDS_Face& myface,
Standard_Real& parameter)
{
Handle(IGESData_IGESEntity) res;
if ( myvertex.IsNull()) return res;
Handle(IGESData_IGESEntity) IVertex = TransferVertex(myvertex);
// returns the parameter of myvertex on the pcurve of myedge on myface
parameter = BRep_Tool::Parameter(myvertex, myedge, myface);
if (!IVertex.IsNull()) res = IVertex;
return res;
}
//=============================================================================
// TransferVertex
//
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferVertex
(const TopoDS_Vertex& myvertex,
const TopoDS_Edge& myedge,
const Handle(Geom_Surface)& mysurface,
const TopLoc_Location& myloc,
Standard_Real& parameter)
{
Handle(IGESData_IGESEntity) res;
if ( myvertex.IsNull()) return res;
Handle(IGESData_IGESEntity) IVertex = TransferVertex(myvertex);
// returns the parameter of myvertex on the pcurve of myedge on mysurface
parameter = BRep_Tool::Parameter(myvertex, myedge, mysurface, myloc);
if (!IVertex.IsNull()) res = IVertex;
return res;
}
//=============================================================================
// TransferVertex
//
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferVertex
(const TopoDS_Vertex& myvertex,
const TopoDS_Face& myface,
gp_Pnt2d& mypoint)
{
Handle(IGESData_IGESEntity) res;
if ( myvertex.IsNull()) return res;
Handle(IGESData_IGESEntity) IVertex = TransferVertex(myvertex);
// returns the parameter of myvertex on myface
mypoint = BRep_Tool::Parameters(myvertex, myface);
if (!IVertex.IsNull()) res = IVertex;
return res;
}
//=============================================================================
// TransferEdge
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferEdge
(const TopoDS_Edge& myedge,
const Standard_Boolean isBRepMode)
{
Handle(IGESData_IGESEntity) res;
if ( myedge.IsNull()) return res;
// returns the 3d curve of the edge and the parameter range
TopLoc_Location L;
Standard_Real First, Last, U1, U2;
Handle(IGESData_IGESEntity) ICurve;
Handle(Geom_Curve) Curve3d = BRep_Tool::Curve(myedge, L, First, Last);
//#28 rln 19.10.98 UKI60155, etc.
//Only Bezier will be converted into B-Spline, not Conic. This conertation
//will be done only inside GeomToIGES package for simplifying the code.
//#29 rln 19.10.98
//Unnecessary duplication of curves is removed.
if (!Curve3d.IsNull()) {
gp_Trsf Tr = L.Transformation();
if (Tr.Form() != gp_Identity)
Curve3d = Handle(Geom_Curve)::DownCast(Curve3d->Transformed (Tr));
else
Curve3d = Handle(Geom_Curve)::DownCast(Curve3d->Copy());
if (myedge.Orientation() == TopAbs_REVERSED && !isBRepMode) {
U1 = Curve3d->ReversedParameter(Last);
U2 = Curve3d->ReversedParameter(First);
Curve3d->Reverse();
}
else {
U1 = First;
U2 = Last;
}
GeomToIGES_GeomCurve GC;
GC.SetModel(GetModel());
ICurve = GC.TransferCurve(Curve3d, U1, U2);
}
//#31 rln 19.10.98
//Vertices are not translated into IGES anymore since they are not put into
//the model
if (!ICurve.IsNull()) res = ICurve;
SetShapeResult ( myedge, res );
return res;
}
//=============================================================================
// TransferEdge
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferEdge (const TopoDS_Edge& myedge,
const TopoDS_Face& myface,
const Standard_Real length,
const Standard_Boolean isBRepMode)
{
Handle(IGESData_IGESEntity) res;
if ( myedge.IsNull() || GetPCurveMode() ==0 ||
( ! isBRepMode && BRep_Tool::Degenerated ( myedge ) ) ) return res;
//S4181 pdn 23.04.99 adjusting length factor according to analytic mode.
Standard_Real myLen = length;
Standard_Boolean analyticMode = ( GetConvertSurfaceMode() ==0 && isBRepMode );
// returns the 2d curve associated to myedge in the parametric space of myface
Standard_Real First, Last;
Handle(Geom2d_Curve) Curve2d = BRep_Tool::CurveOnSurface
(myedge, myface, First, Last);
Handle(IGESData_IGESEntity) ICurve2d;
//#29 rln 19.10.98
if (!Curve2d.IsNull()) {
// For "revolution" and "LinearExtrusion" surfaces, it is necessary
// to apply a translation of 2D curves to agree on the
// origin (U,V) between IGES and BRep (for Cylindrical,
// Conical and SurfaceOfLinearExtrusion)
// It is necessary to invert (u,v) surfaces of revolution.
TopLoc_Location L;
Handle(Geom_Surface) st = BRep_Tool::Surface(myface, L);
Standard_Real Ufirst, Ulast, Vfirst, Vlast;
BRepTools::UVBounds(myface, Ufirst, Ulast, Vfirst, Vlast);
Handle(Geom_Surface) Surf;
if (st->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
DeclareAndCast(Geom_RectangularTrimmedSurface, rectang, st);
Surf = rectang->BasisSurface();
}
else
Surf = st;
//:abv 19.06.02: writing (loopback) on file offseted_sphere.rle in BRep mode
if (st->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
DeclareAndCast(Geom_OffsetSurface, offset, Surf);
Surf = offset->BasisSurface();
}
//S4181 pdn 20.04.99 transformation of pcurves id defined by type of surface
// and analytic mode.
// skl 18.07.2005 for OCC9490 : in following if() commented
// condition for SurfaceOfLinearExtrusion
Standard_Boolean needShift = (!analyticMode&&
((Surf->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) ||
(Surf->IsKind(STANDARD_TYPE(Geom_ConicalSurface)))/* ||
(Surf->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion)))*/));
//:q4 abv 16 Mar 99: PRO17828 face 555: shift pcurves on SurfaceOfRevolution
if (Surf->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
Handle(Geom_SurfaceOfRevolution) rev =
Handle(Geom_SurfaceOfRevolution)::DownCast ( Surf );
Handle(Geom_Curve) curve = rev->BasisCurve();
// skl 31.05.2004 for OCC6004
if(curve->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(curve);
curve = tc->BasisCurve();
}
if ( curve->IsKind(STANDARD_TYPE(Geom_Line)) ) needShift = Standard_True;
}
if ( needShift ) {
gp_Trsf2d TR;
TR.SetTranslation(gp_Pnt2d(0.,0.),gp_Pnt2d(0.,-Vfirst));
Curve2d = Handle(Geom2d_Curve)::DownCast(Curve2d->Transformed(TR));
}
else Curve2d = Handle(Geom2d_Curve)::DownCast(Curve2d->Copy());
if (!analyticMode&&((Surf->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) ||
(Surf->IsKind(STANDARD_TYPE(Geom_ConicalSurface))) ||
(Surf->IsKind(STANDARD_TYPE(Geom_SphericalSurface))))) {
//#30 rln 19.10.98 transformation of pcurves for IGES Surface of Revolution
Curve2d->Mirror (gp_Ax2d (gp::Origin2d(), gp_Dir2d (1.,1.)));
Curve2d->Mirror (gp::OX2d());
Curve2d->Translate (gp_Vec2d (0, 2 * M_PI));
}
if(Surf->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))||
(Surf->IsKind(STANDARD_TYPE(Geom_ToroidalSurface)))){
Curve2d->Mirror (gp_Ax2d (gp::Origin2d(), gp_Dir2d (1.,1.)));
Curve2d->Mirror (gp::OX2d());
Curve2d->Translate (gp_Vec2d (0, 2 * M_PI));
}
if (analyticMode&&(Surf->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
Surf->IsKind(STANDARD_TYPE(Geom_ConicalSurface))))
myLen = M_PI/180.;
if (analyticMode&&(Surf->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ||
Surf->IsKind(STANDARD_TYPE(Geom_ToroidalSurface)))) {
gp_Trsf2d trans;
trans.SetScale(gp_Pnt2d(0,0),180./M_PI);
Curve2d->Transform(trans);
First = Curve2d->TransformedParameter(First,trans);
Last = Curve2d->TransformedParameter(Last, trans);
}
if (analyticMode&&(Surf->IsKind(STANDARD_TYPE(Geom_ConicalSurface)))) {
Handle(Geom_ConicalSurface) con = Handle(Geom_ConicalSurface)::DownCast ( Surf );
if(con->SemiAngle() < 0) {
Standard_Real vApex = 2 * con->RefRadius() / Sin (con->SemiAngle());
Curve2d->Translate (gp_Vec2d (0, vApex));
}
}
//S4181 transfer functionality
gp_Trsf2d trans;
Standard_Real uFact = 1.;
if(isBRepMode && Surf->IsKind(STANDARD_TYPE(Geom_Plane))) {
trans.SetScale(gp_Pnt2d(0,0),1./GetUnit());
}
if(Surf->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
Standard_Real aDiv = myLen;
if(aDiv < gp::Resolution())
aDiv = 1.;
//emv: changed for bug OCC22126 17.12.2010
trans.SetScale(gp_Pnt2d(0,0), 1. / (Vlast - Vfirst));
//uFact = myLen;
//added by skl 18.07.2005 for OCC9490
// trans.SetScale(gp_Pnt2d(0,0),1./Vlast);
Standard_Real du = 1.;
Standard_Real us1,us2,vs1,vs2;
//scaling parameterization to [0,1]
Surf->Bounds(us1,us2,vs1,vs2);
du = us2-us1;
//emv: changed for bug OCC22126 17.12.2010
uFact = (Vlast - Vfirst)/du;
//uFact = aDiv/du;
}
if (Surf->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
Surf->IsKind(STANDARD_TYPE(Geom_ConicalSurface)) ||
Surf->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) { //:q4
uFact = 1./myLen;
}
ShapeBuild_Edge sbe;
Curve2d = sbe.TransformPCurve(Curve2d,trans,uFact,First,Last);
// (Curve2d, Surf, First, Last, myLen, isBRepMode);
// if the edge is REVERSED, it is necessary to "REVERSE" the curve 2d.
// added by skl 18.07.2005 for OCC9490
if(Surf->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
//emv: changed for bug OCC22126 17.12.2010
gp_Trsf2d trans1;
Standard_Real us1,us2,vs1,vs2,du;
//computing shift of pcurves
Surf->Bounds(us1,us2,vs1,vs2);
du = us2-us1;
trans1.SetTranslation(gp_Vec2d(-us1/du,-Vfirst/(Vlast-Vfirst)));
Curve2d = sbe.TransformPCurve(Curve2d,trans1,1.,First,Last);
}
if (myedge.Orientation() == TopAbs_REVERSED) {
Standard_Real tmpFirst = Curve2d->ReversedParameter(Last),
tmpLast = Curve2d->ReversedParameter(First);
Curve2d->Reverse();
First = tmpFirst;
Last = tmpLast;
}
Geom2dToIGES_Geom2dCurve GC;
GC.SetModel(GetModel());
ICurve2d = GC.Transfer2dCurve(Curve2d, First, Last);
}
//#31 rln 19.10.98
//Vertices are not translated into IGES anymore since they are not put into
//the model
if (!ICurve2d.IsNull()) res = ICurve2d;
SetShapeResult ( myedge, res );
return res;
}
//=============================================================================
// TransferWire
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferWire
(const TopoDS_Wire& mywire)
{
Handle(IGESData_IGESEntity) res;
if ( mywire.IsNull()) return res;
//A composite curve is defined as an ordered list of entities
//consisting of a point, connect point and parametrised curve
//entities (excluding the CompositeCurve entity).
Handle(IGESData_IGESEntity) ent ;
Handle(TColStd_HSequenceOfTransient) Seq = new TColStd_HSequenceOfTransient();
TopExp_Explorer TE(mywire, TopAbs_VERTEX);
if ( TE.More()) {
BRepTools_WireExplorer WE;
for ( WE.Init(mywire); WE.More(); WE.Next()) {
TopoDS_Edge E = WE.Current();
if (E.IsNull()) {
AddWarning(mywire, "an Edge is a null entity");
}
else {
ent = TransferEdge(E, Standard_False);
if (!ent.IsNull()) Seq->Append(ent);
}
}
}
else
AddWarning(mywire, " no Vertex associated to the Wire");
Standard_Integer nbedges = Seq->Length();
Handle(IGESData_HArray1OfIGESEntity) Tab;
if ( nbedges == 1 ) {
res = ent;
}
else if ( nbedges >= 2) {
Tab = new IGESData_HArray1OfIGESEntity(1,nbedges);
for (Standard_Integer itab = 1; itab <= nbedges; itab++) {
Handle(IGESData_IGESEntity) item = GetCasted(IGESData_IGESEntity, Seq->Value(itab));
Tab->SetValue(itab,item);
}
Handle(IGESGeom_CompositeCurve) Comp = new IGESGeom_CompositeCurve;
Comp->Init(Tab);
res = Comp;
}
SetShapeResult ( mywire, res );
return res;
}
//=============================================================================
// TransferWire
//=============================================================================
Handle(IGESData_IGESEntity) BRepToIGES_BRWire ::TransferWire
(const TopoDS_Wire & mywire,
const TopoDS_Face & myface,
Handle(IGESData_IGESEntity)& mycurve2d,
const Standard_Real length)
{
Handle(IGESData_IGESEntity) res;
if ( mywire.IsNull()) return res;
Handle(IGESData_IGESEntity) ent3d ;
Handle(IGESData_IGESEntity) ent2d ;
Handle(TColStd_HSequenceOfTransient) Seq3d = new TColStd_HSequenceOfTransient();
Handle(TColStd_HSequenceOfTransient) Seq2d = new TColStd_HSequenceOfTransient();
// create a 3d CompositeCurve and a 2d CompositeCurve
TopExp_Explorer TE(mywire, TopAbs_VERTEX);
if ( TE.More()) {
// PTV OCC908 workaround for KAS:dev version
/*
BRepTools_WireExplorer WE;
for ( WE.Init(mywire,myface); WE.More(); WE.Next()) {
TopoDS_Edge E = WE.Current();
if (E.IsNull()) {
AddWarning(mywire, "an Edge is a null entity");
}
else {
ent3d = TransferEdge(E, Standard_False);
if (!ent3d.IsNull()) Seq3d->Append(ent3d);
ent2d = TransferEdge(E, myface, length, Standard_False);
if (!ent2d.IsNull()) Seq2d->Append(ent2d);
}
}
*/
Handle(ShapeFix_Wire) aSFW =
new ShapeFix_Wire( mywire, myface, Precision::Confusion() );
aSFW->FixReorder();
Handle(ShapeExtend_WireData) aSEWD = aSFW->WireData();
Standard_Integer nbE = aSEWD->NbEdges();
for (Standard_Integer windex = 1; windex <= nbE; windex++) {
TopoDS_Edge E = aSEWD->Edge( windex );
if (E.IsNull()) {
AddWarning(mywire, "an Edge is a null entity");
}
else {
ent3d = TransferEdge(E, Standard_False);
if (!ent3d.IsNull()) Seq3d->Append(ent3d);
ent2d = TransferEdge(E, myface, length, Standard_False);
if (!ent2d.IsNull()) Seq2d->Append(ent2d);
}
}
// OCC908 end of workaround
}
else
AddWarning(mywire, " no Vertex associated to the Wire");
// Composite Curve 3D
Standard_Integer nb3d = Seq3d->Length();
Handle(IGESData_HArray1OfIGESEntity) Tab3d;
if ( nb3d == 1 ) {
res = ent3d;
}
else if (nb3d >= 2) {
Tab3d = new IGESData_HArray1OfIGESEntity(1,nb3d);
//Standard_Integer tabval = nb3d; //szv#4:S4163:12Mar99 unused
for (Standard_Integer itab = 1; itab <= nb3d; itab++) {
Handle(IGESData_IGESEntity) item =
GetCasted(IGESData_IGESEntity, Seq3d->Value(itab));
Tab3d->SetValue(itab,item);
}
Handle(IGESGeom_CompositeCurve) Comp = new IGESGeom_CompositeCurve;
Comp->Init(Tab3d);
res = Comp;
}
// Composite Curve 2D
Standard_Integer nb2d = Seq2d->Length();
Handle(IGESData_HArray1OfIGESEntity) Tab2d;
if ( nb2d == 1 ) {
mycurve2d = ent2d;
}
else if (nb2d >= 2) {
Tab2d = new IGESData_HArray1OfIGESEntity(1,nb2d);
//Standard_Integer tabval = nb2d; //szv#4:S4163:12Mar99 unused
for ( Standard_Integer itab = 1; itab <= nb2d; itab++) {
Handle(IGESData_IGESEntity) item =
GetCasted(IGESData_IGESEntity, Seq2d->Value(itab));
Tab2d->SetValue(itab,item);
}
Handle(IGESGeom_CompositeCurve) Comp = new IGESGeom_CompositeCurve;
Comp->Init(Tab2d);
mycurve2d = Comp;
}
SetShapeResult ( mywire, res );
return res;
}