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ab860031bd
Method BRep_Tool::IsClosed() extended to analyze closure of wires in addition to shells and solids. External and Internal edges and vertices are ignored in this check. Analysis of compounds is disabled. Update of flag Closed according to actual state is added in most places where new shells are constructed. Draw-command and test case for issue CR25202
206 lines
6.7 KiB
C++
206 lines
6.7 KiB
C++
// Created on: 1995-01-03
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// Created by: Frederic MAUPAS
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// Copyright (c) 1995-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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//gka,abv 14.09.99: S4136: eliminate BRepAPI::Precision()
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#include <StepToTopoDS_TranslatePolyLoop.ixx>
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#include <StepToTopoDS_PointPair.hxx>
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#include <StepToGeom_MakeCartesianPoint.hxx>
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#include <BRep_Builder.hxx>
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//#include <BRepAPI.hxx>
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#include <ElSLib.hxx>
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#include <ShapeAnalysis_Surface.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Edge.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_CartesianPoint.hxx>
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#include <gp_Vec2d.hxx>
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#include <StepGeom_HArray1OfCartesianPoint.hxx>
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#include <Transfer_TransientProcess.hxx>
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#include <Precision.hxx>
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// ============================================================================
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// Method :
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// Purpose :
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// ============================================================================
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StepToTopoDS_TranslatePolyLoop::StepToTopoDS_TranslatePolyLoop()
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{
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done = Standard_False;
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}
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// ============================================================================
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// Method :
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// Purpose :
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// ============================================================================
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StepToTopoDS_TranslatePolyLoop::StepToTopoDS_TranslatePolyLoop(const Handle(StepShape_PolyLoop)& PL, StepToTopoDS_Tool& T, const Handle(Geom_Surface)& S, const TopoDS_Face& F)
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{
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Init (PL, T, S, F);
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}
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// ============================================================================
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// Method :
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// Purpose :
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// ============================================================================
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void StepToTopoDS_TranslatePolyLoop::Init(const Handle(StepShape_PolyLoop)& PL, StepToTopoDS_Tool& aTool, const Handle(Geom_Surface)& GeomSurf, const TopoDS_Face& TopoFace)
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{
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if (!aTool.IsBound(PL)) {
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BRep_Builder B;
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Handle(Transfer_TransientProcess) TP = aTool.TransientProcess();
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//:S4136 Standard_Real preci = BRepAPI::Precision();
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Standard_Integer i;
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Handle(StepGeom_CartesianPoint) P1,P2;
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Handle(Geom_CartesianPoint) GP1, GP2;
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TopoDS_Vertex V1, V2;
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TopoDS_Edge E;
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TopoDS_Wire W;
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Handle(Geom_Line) L;
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Handle(Geom2d_Line) L2d;
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gp_Vec V;
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gp_Vec2d V2d;
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Standard_Real Magn;
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Handle(Geom_Plane) SP = Handle(Geom_Plane)::DownCast(GeomSurf);
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if (SP.IsNull()) TP->AddFail(PL,"Surface not planar in a FacetedBRep !");
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Handle(ShapeAnalysis_Surface) STSU = new ShapeAnalysis_Surface ( GeomSurf );
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Standard_Integer Nb = PL->NbPolygon();
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Handle(StepGeom_HArray1OfCartesianPoint) Poly =
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new StepGeom_HArray1OfCartesianPoint(1, Nb+1);
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for ( i=1; i<=Nb; i++ )
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Poly->SetValue(i, PL->PolygonValue(i));
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Nb++;
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Poly->SetValue(Nb, PL->PolygonValue(1));
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P1 = Poly->Value(1);
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StepToGeom_MakeCartesianPoint::Convert(P1,GP1);
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if (aTool.IsVertexBound(P1)) {
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V1 = aTool.FindVertex(P1);
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}
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else {
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B.MakeVertex(V1, GP1->Pnt(), Precision::Confusion()); //:S4136: preci
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aTool.BindVertex(P1,V1);
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}
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B.MakeWire(W);
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for ( i=2; i<=Nb; i++){
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P2 = Poly->Value(i);
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if (P1 == P2) continue; // peut arriver (KK) CKY 9-DEC-1997
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StepToTopoDS_PointPair PP(P1, P2);
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StepToGeom_MakeCartesianPoint::Convert(P2,GP2);
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TopoDS_Shape aBoundEdge;
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Standard_Boolean isbound = aTool.IsEdgeBound(PP);
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if ( !isbound) {
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if (aTool.IsVertexBound(P2)) {
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V2 = aTool.FindVertex(P2);
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}
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else {
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B.MakeVertex(V2, GP2->Pnt(), Precision::Confusion()); //:S4136: preci
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aTool.BindVertex(P2,V2);
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}
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V = gp_Vec( GP1->Pnt(), GP2->Pnt());
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L = new Geom_Line( GP1->Pnt() , gp_Dir(V) );
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B.MakeEdge(E, L, Precision::Confusion()); //:S4136: preci
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V1.Orientation(TopAbs_FORWARD);
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V2.Orientation(TopAbs_REVERSED);
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B.Add(E, V1);
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B.Add(E, V2);
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Magn = V.Magnitude();
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B.UpdateVertex(V1, 0., E, 0. ); //:S4136: preci
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B.UpdateVertex(V2, Magn, E, 0. ); //:S4136: preci
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}
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else {
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aBoundEdge = aTool.FindEdge(PP);
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E = TopoDS::Edge(aBoundEdge);
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// Il faut qu en finale l edge soit vue
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// - via sa premiere face, orientation combinee = celle de cette premiere face
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// - via sa deuxieme face, orientation combinee INVERSE de la precedente
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if (TopoFace.Orientation() == TopAbs_FORWARD) E.Reverse();
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V2 = aTool.FindVertex(P2);
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// Standard_Real u1,v1,u2,v2;
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// ElSLib::Parameters(SP->Pln(), GP1->Pnt(), u1, v1);
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// ElSLib::Parameters(SP->Pln(), GP2->Pnt(), u2, v2);
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// V2d = gp_Vec2d( gp_Pnt2d(u1,v1), gp_Pnt2d(u2,v2) );
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// L2d = new Geom2d_Line( gp_Pnt2d(u1,v1), gp_Dir2d(V2d) );
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}
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gp_Pnt2d V2p1 = STSU->ValueOfUV (GP1->Pnt(), Precision());
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gp_Pnt2d V2p2 = STSU->ValueOfUV (GP2->Pnt(), Precision());
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if (E.Orientation() == TopAbs_FORWARD) {
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V2d = gp_Vec2d( V2p1, V2p2 );
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L2d = new Geom2d_Line( V2p1, gp_Dir2d(V2d) );
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} else {
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V2d = gp_Vec2d( V2p2, V2p1 );
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L2d = new Geom2d_Line( V2p2, gp_Dir2d(V2d) );
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}
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B.UpdateEdge(E, L2d, TopoFace, 0.);
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// E.Orientation(TopAbs_FORWARD);
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TopoDS_Edge EB = E; // pour le binding : cumul des orientations !
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EB.Orientation (TopoFace.Orientation());
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if (!isbound) aTool.BindEdge(PP, EB);
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if (!E.IsNull()) {
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B.Add(W,E);
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}
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P1 = P2;
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GP1 = GP2;
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V1 = V2;
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}
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W.Closed (BRep_Tool::IsClosed (W));
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aTool.Bind(PL, W);
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myResult = W;
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myError = StepToTopoDS_TranslatePolyLoopDone;
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done = Standard_True;
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}
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else {
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myResult = TopoDS::Wire(aTool.Find(PL));
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myError = StepToTopoDS_TranslatePolyLoopDone;
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done = Standard_True;
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}
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}
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// ============================================================================
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// Method :
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// Purpose :
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// ============================================================================
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const TopoDS_Shape& StepToTopoDS_TranslatePolyLoop::Value() const
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{
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StdFail_NotDone_Raise_if(!done,"");
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return myResult;
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}
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// ============================================================================
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// Method :
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// Purpose :
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// ============================================================================
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StepToTopoDS_TranslatePolyLoopError StepToTopoDS_TranslatePolyLoop::Error() const
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{
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return myError;
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}
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