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// File: StepToTopoDS_TranslatePolyLoop.cxx
// Created: Tue Jan 3 13:58:54 1995
// Author: Frederic MAUPAS
// <fma@stylox>
//gka,abv 14.09.99: S4136: eliminate BRepAPI::Precision()
#include <StepToTopoDS_TranslatePolyLoop.ixx>
#include <StepToTopoDS_PointPair.hxx>
#include <StepToGeom_MakeCartesianPoint.hxx>
#include <BRep_Builder.hxx>
//#include <BRepAPI.hxx>
#include <ElSLib.hxx>
#include <ShapeAnalysis_Surface.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <Geom2d_Line.hxx>
#include <Geom_Line.hxx>
#include <Geom_Plane.hxx>
#include <Geom_CartesianPoint.hxx>
#include <gp_Vec2d.hxx>
#include <StepGeom_HArray1OfCartesianPoint.hxx>
#include <Transfer_TransientProcess.hxx>
#include <Precision.hxx>
// ============================================================================
// Method :
// Purpose :
// ============================================================================
StepToTopoDS_TranslatePolyLoop::StepToTopoDS_TranslatePolyLoop()
{
done = Standard_False;
}
// ============================================================================
// Method :
// Purpose :
// ============================================================================
StepToTopoDS_TranslatePolyLoop::StepToTopoDS_TranslatePolyLoop(const Handle(StepShape_PolyLoop)& PL, StepToTopoDS_Tool& T, const Handle(Geom_Surface)& S, const TopoDS_Face& F)
{
Init (PL, T, S, F);
}
// ============================================================================
// Method :
// Purpose :
// ============================================================================
void StepToTopoDS_TranslatePolyLoop::Init(const Handle(StepShape_PolyLoop)& PL, StepToTopoDS_Tool& aTool, const Handle(Geom_Surface)& GeomSurf, const TopoDS_Face& TopoFace)
{
if (!aTool.IsBound(PL)) {
BRep_Builder B;
Handle(Transfer_TransientProcess) TP = aTool.TransientProcess();
//:S4136 Standard_Real preci = BRepAPI::Precision();
Standard_Integer i;
Handle(StepGeom_CartesianPoint) P1,P2;
Handle(Geom_CartesianPoint) GP1, GP2;
TopoDS_Vertex V1, V2;
TopoDS_Edge E;
TopoDS_Wire W;
Handle(Geom_Line) L;
Handle(Geom2d_Line) L2d;
gp_Vec V;
gp_Vec2d V2d;
Standard_Real Magn;
Handle(Geom_Plane) SP = Handle(Geom_Plane)::DownCast(GeomSurf);
if (SP.IsNull()) TP->AddFail(PL,"Surface not planar in a FacetedBRep !");
Handle(ShapeAnalysis_Surface) STSU = new ShapeAnalysis_Surface ( GeomSurf );
Standard_Integer Nb = PL->NbPolygon();
Handle(StepGeom_HArray1OfCartesianPoint) Poly =
new StepGeom_HArray1OfCartesianPoint(1, Nb+1);
for ( i=1; i<=Nb; i++ )
Poly->SetValue(i, PL->PolygonValue(i));
Nb++;
Poly->SetValue(Nb, PL->PolygonValue(1));
P1 = Poly->Value(1);
StepToGeom_MakeCartesianPoint::Convert(P1,GP1);
if (aTool.IsVertexBound(P1)) {
V1 = aTool.FindVertex(P1);
}
else {
B.MakeVertex(V1, GP1->Pnt(), Precision::Confusion()); //:S4136: preci
aTool.BindVertex(P1,V1);
}
B.MakeWire(W);
for ( i=2; i<=Nb; i++){
P2 = Poly->Value(i);
if (P1 == P2) continue; // peut arriver (KK) CKY 9-DEC-1997
StepToTopoDS_PointPair PP(P1, P2);
StepToGeom_MakeCartesianPoint::Convert(P2,GP2);
TopoDS_Shape aBoundEdge;
Standard_Boolean isbound = aTool.IsEdgeBound(PP);
if ( !isbound) {
if (aTool.IsVertexBound(P2)) {
V2 = aTool.FindVertex(P2);
}
else {
B.MakeVertex(V2, GP2->Pnt(), Precision::Confusion()); //:S4136: preci
aTool.BindVertex(P2,V2);
}
V = gp_Vec( GP1->Pnt(), GP2->Pnt());
L = new Geom_Line( GP1->Pnt() , gp_Dir(V) );
B.MakeEdge(E, L, Precision::Confusion()); //:S4136: preci
V1.Orientation(TopAbs_FORWARD);
V2.Orientation(TopAbs_REVERSED);
B.Add(E, V1);
B.Add(E, V2);
Magn = V.Magnitude();
B.UpdateVertex(V1, 0., E, 0. ); //:S4136: preci
B.UpdateVertex(V2, Magn, E, 0. ); //:S4136: preci
}
else {
aBoundEdge = aTool.FindEdge(PP);
E = TopoDS::Edge(aBoundEdge);
// Il faut qu en finale l edge soit vue
// - via sa premiere face, orientation combinee = celle de cette premiere face
// - via sa deuxieme face, orientation combinee INVERSE de la precedente
if (TopoFace.Orientation() == TopAbs_FORWARD) E.Reverse();
V2 = aTool.FindVertex(P2);
// Standard_Real u1,v1,u2,v2;
// ElSLib::Parameters(SP->Pln(), GP1->Pnt(), u1, v1);
// ElSLib::Parameters(SP->Pln(), GP2->Pnt(), u2, v2);
// V2d = gp_Vec2d( gp_Pnt2d(u1,v1), gp_Pnt2d(u2,v2) );
// L2d = new Geom2d_Line( gp_Pnt2d(u1,v1), gp_Dir2d(V2d) );
}
gp_Pnt2d V2p1 = STSU->ValueOfUV (GP1->Pnt(), Precision());
gp_Pnt2d V2p2 = STSU->ValueOfUV (GP2->Pnt(), Precision());
if (E.Orientation() == TopAbs_FORWARD) {
V2d = gp_Vec2d( V2p1, V2p2 );
L2d = new Geom2d_Line( V2p1, gp_Dir2d(V2d) );
} else {
V2d = gp_Vec2d( V2p2, V2p1 );
L2d = new Geom2d_Line( V2p2, gp_Dir2d(V2d) );
}
B.UpdateEdge(E, L2d, TopoFace, 0.);
// E.Orientation(TopAbs_FORWARD);
TopoDS_Edge EB = E; // pour le binding : cumul des orientations !
EB.Orientation (TopoFace.Orientation());
if (!isbound) aTool.BindEdge(PP, EB);
if (!E.IsNull()) {
B.Add(W,E);
}
P1 = P2;
GP1 = GP2;
V1 = V2;
}
aTool.Bind(PL, W);
myResult = W;
myError = StepToTopoDS_TranslatePolyLoopDone;
done = Standard_True;
}
else {
myResult = TopoDS::Wire(aTool.Find(PL));
myError = StepToTopoDS_TranslatePolyLoopDone;
done = Standard_True;
}
}
// ============================================================================
// Method :
// Purpose :
// ============================================================================
const TopoDS_Shape& StepToTopoDS_TranslatePolyLoop::Value() const
{
StdFail_NotDone_Raise_if(!done,"");
return myResult;
}
// ============================================================================
// Method :
// Purpose :
// ============================================================================
StepToTopoDS_TranslatePolyLoopError StepToTopoDS_TranslatePolyLoop::Error() const
{
return myError;
}
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