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5db1a7a3db
Modify the method BOPTools_AlgoTools3D::DoSplitSEAMOnFace: correct processing closed non-periodic surfaces.
1035 lines
28 KiB
C++
1035 lines
28 KiB
C++
// Created by: Peter KURNEV
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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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#include <Bnd_Box.hxx>
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#include <BOPTools_AlgoTools2D.hxx>
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#include <BOPTools_AlgoTools3D.hxx>
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#include <BRep_Builder.hxx>
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#include <BRep_CurveRepresentation.hxx>
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#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
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#include <BRep_ListIteratorOfListOfPointRepresentation.hxx>
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#include <BRep_PointRepresentation.hxx>
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#include <BRep_TEdge.hxx>
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#include <BRep_TFace.hxx>
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#include <BRep_Tool.hxx>
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#include <BRep_TVertex.hxx>
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#include <BRepBndLib.hxx>
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#include <BRepGProp.hxx>
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#include <BRepTools.hxx>
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#include <Geom2d_Curve.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom2d_TrimmedCurve.hxx>
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#include <Geom2dAdaptor_Curve.hxx>
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#include <Geom2dHatch_Hatcher.hxx>
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#include <Geom_BezierSurface.hxx>
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#include <Geom_BSplineSurface.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_RectangularTrimmedSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <GeomAdaptor_Surface.hxx>
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#include <Geom2dAPI_ProjectPointOnCurve.hxx>
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#include <gp_Cylinder.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Dir2d.hxx>
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#include <gp_Lin2d.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Vec2d.hxx>
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#include <GProp_GProps.hxx>
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#include <HatchGen_Domain.hxx>
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#include <IntTools_Context.hxx>
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#include <IntTools_Tools.hxx>
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#include <Poly_Triangulation.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopTools_IndexedMapOfShape.hxx>
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static void Add(const TopoDS_Shape& aS,
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TopTools_IndexedMapOfShape& myShapes,
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Standard_Boolean& bHasGeometry);
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static
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Standard_Boolean HasGeometry(const TopoDS_Shape& aS);
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//=======================================================================
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//function : DoSplitSEAMOnFace
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//purpose :
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//=======================================================================
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Standard_Boolean BOPTools_AlgoTools3D::DoSplitSEAMOnFace (const TopoDS_Edge& aSplit,
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const TopoDS_Face& aF)
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{
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Standard_Boolean bIsUPeriodic, bIsVPeriodic, bIsLeft;
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Standard_Real anUPeriod = 0., anVPeriod = 0.;
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Standard_Real aTol, a, b, aT, anU, dU, anU1;
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Standard_Real aScPr, anV, dV, anV1;
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Standard_Real aUmin, aUmax, aVmin, aVmax;
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gp_Pnt2d aP2D;
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gp_Vec2d aVec2D;
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Handle(Geom2d_Curve) aTmpC1, aTmpC2;
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Handle(Geom2d_Curve) C2D1;
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Handle(Geom2d_Line) aLD1;
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Handle(Geom_Surface) aS;
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BRep_Builder BB;
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TopoDS_Edge aSp;
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//
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bIsLeft = Standard_False;
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aSp=aSplit;
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aSp.Orientation(TopAbs_FORWARD);
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aTol=BRep_Tool::Tolerance(aSp);
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//
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aS=BRep_Tool::Surface(aF);
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//
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aS->Bounds(aUmin, aUmax, aVmin, aVmax);
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//
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bIsUPeriodic = aS->IsUClosed();
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bIsVPeriodic = aS->IsVClosed();
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if (bIsUPeriodic)
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anUPeriod = aUmax - aUmin;
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if (bIsVPeriodic)
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anVPeriod = aVmax - aVmin;
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//
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if (!bIsUPeriodic && !bIsVPeriodic) {
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Handle(Geom_RectangularTrimmedSurface) aRTS;
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aRTS = Handle(Geom_RectangularTrimmedSurface)::DownCast(aS);
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//
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if (aRTS.IsNull())
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return Standard_False;
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else {
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Handle(Geom_Surface) aSB;
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//
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aSB = aRTS->BasisSurface();
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bIsUPeriodic = aSB->IsUPeriodic();
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bIsVPeriodic = aSB->IsVPeriodic();
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//
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if (bIsUPeriodic || bIsVPeriodic)
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{
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anUPeriod = bIsUPeriodic ? aSB->UPeriod() : 0.;
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anVPeriod = bIsVPeriodic ? aSB->VPeriod() : 0.;
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}
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else
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{
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Standard_Boolean bIsUClosed = aSB->IsUClosed();
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Standard_Boolean bIsVClosed = aSB->IsVClosed();
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Standard_Real aGlobalUmin, aGlobalUmax, aGlobalVmin, aGlobalVmax;
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aSB->Bounds(aGlobalUmin, aGlobalUmax, aGlobalVmin, aGlobalVmax);
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if (bIsUClosed &&
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Abs(aUmin - aGlobalUmin) < aTol &&
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Abs(aUmax - aGlobalUmax) < aTol)
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{
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bIsUPeriodic = Standard_True;
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anUPeriod = aUmax - aUmin;
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}
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if (bIsVClosed &&
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Abs(aVmin - aGlobalVmin) < aTol &&
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Abs(aVmax - aGlobalVmax) < aTol)
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{
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bIsVPeriodic = Standard_True;
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anVPeriod = aVmax - aVmin;
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}
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}
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if (!(bIsUPeriodic || bIsVPeriodic)) {
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return Standard_False;
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}
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} //if !RTS.IsNull
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}
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//
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//---------------------------------------------------
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C2D1=BRep_Tool::CurveOnSurface(aSp, aF, a, b);
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//
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aT=BOPTools_AlgoTools2D::IntermediatePoint(a, b);
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C2D1->D1(aT, aP2D, aVec2D);
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gp_Dir2d aDir2D1(aVec2D), aDOX(-1.,0.), aDOY(0.,1.);
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//
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anU=aP2D.X();
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anV=aP2D.Y();
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//
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anU1=anU;
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anV1=anV;
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//
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GeomAdaptor_Surface aGAS(aS);
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dU = aGAS.UResolution(aTol);
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dV = aGAS.VResolution(aTol);
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//
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if (anUPeriod > 0.){
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if (fabs (anU-aUmin) < dU) {
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bIsLeft=Standard_True;
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anU1=anU+anUPeriod;
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}
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else if (fabs (anU-aUmax) < dU) {
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bIsLeft=Standard_False;
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anU1=anU-anUPeriod;
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}
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}
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//
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if (anVPeriod > 0.) {
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if (fabs (anV-aVmin) < dV) {
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bIsLeft=Standard_True;
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anV1=anV+anVPeriod;
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}
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else if (fabs (anV-aVmax) < dV) {
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bIsLeft=Standard_False;
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anV1=anV-anVPeriod;
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}
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}
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//
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if (anU1==anU && anV1==anV) {
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return Standard_False;
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}
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//
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aScPr = (anU1==anU) ? aDir2D1*aDOX : aDir2D1*aDOY;
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//
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aTmpC1=Handle(Geom2d_Curve)::DownCast(C2D1->Copy());
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Handle(Geom2d_TrimmedCurve) aC1 =
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new Geom2d_TrimmedCurve(aTmpC1, a, b);
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//
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aTmpC2=Handle(Geom2d_Curve)::DownCast(C2D1->Copy());
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Handle(Geom2d_TrimmedCurve) aC2 =
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new Geom2d_TrimmedCurve(aTmpC2, a, b);
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gp_Vec2d aTrV(anU1-anU, anV1-anV);
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aC2->Translate(aTrV);
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//
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if (!bIsLeft) {
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if (aScPr<0.) {
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BB.UpdateEdge(aSp, aC2, aC1, aF, aTol);
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}
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else {
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BB.UpdateEdge(aSp, aC1, aC2, aF, aTol);
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}
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}
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else {
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if (aScPr<0.) {
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BB.UpdateEdge(aSp, aC1, aC2, aF, aTol);
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}
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else {
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BB.UpdateEdge(aSp, aC2, aC1, aF, aTol);
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}
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}
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return Standard_True;
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}
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//=======================================================================
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//function : DoSplitSEAMOnFace
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//purpose :
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//=======================================================================
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Standard_Boolean BOPTools_AlgoTools3D::DoSplitSEAMOnFace (const TopoDS_Edge& theEOrigin,
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const TopoDS_Edge& theESplit,
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const TopoDS_Face& theFace)
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{
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if (!BRep_Tool::IsClosed (theEOrigin, theFace))
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return Standard_False;
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if (BRep_Tool::IsClosed (theESplit, theFace))
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return Standard_True;
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TopoDS_Edge aESplit = theESplit;
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aESplit.Orientation (TopAbs_FORWARD);
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TopoDS_Face aFace = theFace;
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aFace.Orientation (TopAbs_FORWARD);
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Standard_Real aTS1, aTS2;
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Handle(Geom2d_Curve) aC2DSplit = BRep_Tool::CurveOnSurface (aESplit, aFace, aTS1, aTS2);
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if (aC2DSplit.IsNull())
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return Standard_False;
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Standard_Real aT1, aT2;
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Handle(Geom2d_Curve) aC2D1 = BRep_Tool::CurveOnSurface (
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TopoDS::Edge (theEOrigin.Oriented (TopAbs_FORWARD)), aFace, aT1, aT2);
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Handle(Geom2d_Curve) aC2D2 = BRep_Tool::CurveOnSurface (
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TopoDS::Edge (theEOrigin.Oriented (TopAbs_REVERSED)), aFace, aT1, aT2);
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Standard_Real aT = BOPTools_AlgoTools2D::IntermediatePoint (aTS1, aTS2);
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gp_Pnt2d aPMid;
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gp_Vec2d aVTgt;
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aC2DSplit->D1 (aT, aPMid, aVTgt);
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// project on original 2d curves
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Geom2dAPI_ProjectPointOnCurve aProjPC1, aProjPC2;
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aProjPC1.Init (aPMid, aC2D1, aT1, aT2);
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aProjPC2.Init (aPMid, aC2D2, aT1, aT2);
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if (!aProjPC1.NbPoints() && !aProjPC2.NbPoints())
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return Standard_False;
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Standard_Real aDist1 = aProjPC1.NbPoints() ? aProjPC1.LowerDistance() : RealLast();
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Standard_Real aDist2 = aProjPC2.NbPoints() ? aProjPC2.LowerDistance() : RealLast();
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if (aDist1 > Precision::PConfusion() && aDist2 > Precision::PConfusion())
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return Standard_False;
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// choose the closest and take corresponding point from the opposite
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gp_Pnt2d aNewPnt = aDist1 < aDist2 ? aC2D2->Value (aProjPC1.LowerDistanceParameter()) :
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aC2D1->Value (aProjPC2.LowerDistanceParameter());
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Handle (Geom2d_Curve) aTmpC1 = Handle (Geom2d_Curve)::DownCast (aC2DSplit->Copy());
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Handle (Geom2d_Curve) aTmpC2 = Handle (Geom2d_Curve)::DownCast (aC2DSplit->Copy());
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Handle (Geom2d_TrimmedCurve) aC1 = new Geom2d_TrimmedCurve (aTmpC1, aTS1, aTS2);
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Handle (Geom2d_TrimmedCurve) aC2 = new Geom2d_TrimmedCurve (aTmpC2, aTS1, aTS2);
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gp_Vec2d aTrVec (aPMid, aNewPnt);
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aC2->Translate (aTrVec);
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gp_Pnt2d aPProj;
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gp_Vec2d aVTgtOrigin;
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if (aDist1 < aDist2)
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{
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aC2D1->D1 (aProjPC1.LowerDistanceParameter(), aPProj, aVTgtOrigin);
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}
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else
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{
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aC2D2->D1 (aProjPC2.LowerDistanceParameter(), aPProj, aVTgtOrigin);
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}
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Standard_Real aDot = aVTgt.Dot (aVTgtOrigin);
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if ((aDist1 < aDist2) == (aDot > 0))
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{
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BRep_Builder().UpdateEdge (aESplit, aC1, aC2, aFace, BRep_Tool::Tolerance (aESplit));
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}
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else
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{
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BRep_Builder().UpdateEdge (aESplit, aC2, aC1, aFace, BRep_Tool::Tolerance (aESplit));
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}
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return Standard_True;
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}
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//=======================================================================
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//function : GetNormalToFaceOnEdge
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//purpose :
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//=======================================================================
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void BOPTools_AlgoTools3D::GetNormalToFaceOnEdge (const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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gp_Dir& aDNF,
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const Handle(IntTools_Context)& theContext)
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{
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Standard_Real aT, aT1, aT2;
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BRep_Tool::CurveOnSurface(aE, aF, aT1, aT2);
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aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2);
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BOPTools_AlgoTools3D::GetNormalToFaceOnEdge (aE, aF, aT, aDNF, theContext);
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if (aF.Orientation()==TopAbs_REVERSED){
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aDNF.Reverse();
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}
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}
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//=======================================================================
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//function : GetNormalToFaceOnEdge
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//purpose :
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//=======================================================================
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void BOPTools_AlgoTools3D::GetNormalToFaceOnEdge (const TopoDS_Edge& aE,
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const TopoDS_Face& aF1,
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const Standard_Real aT,
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gp_Dir& aDNF1,
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const Handle(IntTools_Context)& theContext)
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{
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Standard_Real U, V, aTolPC;
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gp_Pnt2d aP2D;
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gp_Pnt aP;
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gp_Vec aD1U, aD1V;
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Handle(Geom_Surface) aS1=BRep_Tool::Surface(aF1);
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Handle(Geom2d_Curve)aC2D1;
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BOPTools_AlgoTools2D::CurveOnSurface(aE, aF1, aC2D1, aTolPC, theContext);
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aC2D1->D0(aT, aP2D);
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U=aP2D.X();
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V=aP2D.Y();
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aS1->D1(U, V, aP, aD1U, aD1V);
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gp_Dir aDD1U(aD1U);
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gp_Dir aDD1V(aD1V);
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aDNF1=aDD1U^aDD1V;
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}
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//=======================================================================
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//function : SenseFlag
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//purpose :
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//=======================================================================
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Standard_Integer BOPTools_AlgoTools3D::SenseFlag (const gp_Dir& aDNF1,
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const gp_Dir& aDNF2)
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{
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Standard_Boolean bIsDirsCoinside;
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//
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bIsDirsCoinside=IntTools_Tools::IsDirsCoinside(aDNF1, aDNF2);
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if (!bIsDirsCoinside) {
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return 0;
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}
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Standard_Real aScPr;
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aScPr=aDNF1*aDNF2;
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if (aScPr<0.) {
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return -1;
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}
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else if (aScPr>0.) {
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return 1;
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}
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return -1;
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}
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//=======================================================================
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//function : GetNormalToSurface
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//purpose :
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//=======================================================================
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Standard_Boolean BOPTools_AlgoTools3D::GetNormalToSurface
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(const Handle(Geom_Surface)& aS,
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const Standard_Real U,
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const Standard_Real V,
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gp_Dir& aDNS)
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{
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gp_Pnt aP;
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gp_Vec aD1U, aD1V;
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aS->D1(U, V, aP, aD1U, aD1V);
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Standard_Real aLenU = aD1U.SquareMagnitude();
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if (aLenU < gp::Resolution())
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return Standard_False;
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Standard_Real aLenV = aD1V.SquareMagnitude();
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if (aLenV < gp::Resolution())
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return Standard_False;
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gp_Dir aDD1U(aD1U);
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gp_Dir aDD1V(aD1V);
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Standard_Boolean bFlag = IntTools_Tools::IsDirsCoinside(aDD1U, aDD1U);
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if (!bFlag)
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return bFlag;
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aDNS = aDD1U^aDD1V;
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return bFlag;
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}
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//=======================================================================
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//function : GetApproxNormalToFaceOnEdge
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//purpose :
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//=======================================================================
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Standard_Boolean BOPTools_AlgoTools3D::GetApproxNormalToFaceOnEdge
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(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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const Standard_Real aT,
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gp_Pnt& aPNear,
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gp_Dir& aDNF,
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Standard_Real aDt2D)
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{
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gp_Pnt2d aPx2DNear;
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Standard_Integer iErr = BOPTools_AlgoTools3D::PointNearEdge
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(aE, aF, aT, aDt2D, aPx2DNear, aPNear);
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if (iErr != 1) {
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Handle(Geom_Surface) aS=BRep_Tool::Surface(aF);
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BOPTools_AlgoTools3D::GetNormalToSurface
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(aS, aPx2DNear.X(), aPx2DNear.Y(), aDNF);
|
|
|
|
if (aF.Orientation()==TopAbs_REVERSED){
|
|
aDNF.Reverse();
|
|
}
|
|
}
|
|
//
|
|
return (iErr == 0);
|
|
}
|
|
//=======================================================================
|
|
//function : GetApproxNormalToFaceOnEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools3D::GetApproxNormalToFaceOnEdge
|
|
(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
const Standard_Real aT,
|
|
gp_Pnt& aPNear,
|
|
gp_Dir& aDNF,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
gp_Pnt2d aPx2DNear;
|
|
Standard_Integer iErr = BOPTools_AlgoTools3D::PointNearEdge
|
|
(aE, aF, aT, aPx2DNear, aPNear, theContext);
|
|
if (iErr != 1) {
|
|
Handle(Geom_Surface) aS=BRep_Tool::Surface(aF);
|
|
|
|
BOPTools_AlgoTools3D::GetNormalToSurface
|
|
(aS, aPx2DNear.X(), aPx2DNear.Y(), aDNF);
|
|
|
|
if (aF.Orientation()==TopAbs_REVERSED){
|
|
aDNF.Reverse();
|
|
}
|
|
}
|
|
//
|
|
return (iErr == 0);
|
|
}
|
|
//=======================================================================
|
|
//function : GetApproxNormalToFaceOnEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools3D::GetApproxNormalToFaceOnEdge
|
|
(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
const Standard_Real aT,
|
|
const Standard_Real theStep,
|
|
gp_Pnt& aPNear,
|
|
gp_Dir& aDNF,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
gp_Pnt2d aPx2DNear;
|
|
Standard_Integer iErr = BOPTools_AlgoTools3D::PointNearEdge
|
|
(aE, aF, aT, theStep, aPx2DNear, aPNear, theContext);
|
|
if (iErr != 1) {
|
|
Handle(Geom_Surface) aS=BRep_Tool::Surface(aF);
|
|
|
|
BOPTools_AlgoTools3D::GetNormalToSurface
|
|
(aS, aPx2DNear.X(), aPx2DNear.Y(), aDNF);
|
|
|
|
if (aF.Orientation()==TopAbs_REVERSED){
|
|
aDNF.Reverse();
|
|
}
|
|
}
|
|
//
|
|
return (iErr == 0);
|
|
}
|
|
//=======================================================================
|
|
//function : PointNearEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointNearEdge
|
|
(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
const Standard_Real aT,
|
|
const Standard_Real aDt2D,
|
|
gp_Pnt2d& aPx2DNear,
|
|
gp_Pnt& aPxNear)
|
|
{
|
|
Standard_Real aFirst, aLast, aETol, aFTol, transVal;
|
|
GeomAbs_SurfaceType aTS;
|
|
Handle(Geom2d_Curve) aC2D;
|
|
Handle(Geom_Surface) aS;
|
|
//
|
|
aC2D= BRep_Tool::CurveOnSurface (aE, aF, aFirst, aLast);
|
|
Standard_Integer iErr = aC2D.IsNull() ? 1 : 0;
|
|
if (iErr) {
|
|
return iErr;
|
|
}
|
|
//
|
|
aS=BRep_Tool::Surface(aF);
|
|
//
|
|
gp_Pnt2d aPx2D;
|
|
gp_Vec2d aVx2D;
|
|
aC2D->D1 (aT, aPx2D, aVx2D);
|
|
gp_Dir2d aDx2D(aVx2D);
|
|
|
|
gp_Dir2d aDP;
|
|
aDP.SetCoord (-aDx2D.Y(), aDx2D.X());
|
|
|
|
if (aE.Orientation()==TopAbs_REVERSED){
|
|
aDP.Reverse();
|
|
}
|
|
|
|
if (aF.Orientation()==TopAbs_REVERSED) {
|
|
aDP.Reverse();
|
|
}
|
|
//
|
|
aETol = BRep_Tool::Tolerance(aE);
|
|
aFTol = BRep_Tool::Tolerance(aF);
|
|
// NPAL19220
|
|
GeomAdaptor_Surface aGAS(aS);
|
|
aTS=aGAS.GetType();
|
|
if (aTS==GeomAbs_BSplineSurface) {
|
|
if (aETol > 1.e-5) {
|
|
aFTol=aETol;
|
|
}
|
|
}
|
|
if( aETol > 1.e-5 || aFTol > 1.e-5 ) {
|
|
//
|
|
if(aTS!=GeomAbs_Sphere) {
|
|
gp_Vec2d transVec( aDP );
|
|
transVal = aDt2D + aETol + aFTol;
|
|
if (aTS==GeomAbs_Cylinder) {// pkv/909/F8
|
|
Standard_Real aR, dT;
|
|
//
|
|
gp_Cylinder aCyl=aGAS.Cylinder();
|
|
aR=aCyl.Radius();
|
|
dT=1.-transVal/aR;
|
|
if (dT>=-1 && dT<=1) {
|
|
dT=acos(dT);
|
|
transVal=dT;
|
|
}
|
|
}
|
|
//
|
|
transVec.Multiply(transVal);
|
|
aPx2DNear = aPx2D.Translated( transVec );
|
|
}
|
|
else {
|
|
aPx2DNear.SetCoord
|
|
(aPx2D.X()+aDt2D*aDP.X(), aPx2D.Y()+aDt2D*aDP.Y());
|
|
}
|
|
}
|
|
else {
|
|
aPx2DNear.SetCoord
|
|
(aPx2D.X()+aDt2D*aDP.X(), aPx2D.Y()+aDt2D*aDP.Y());
|
|
}
|
|
//
|
|
aS->D0(aPx2DNear.X(), aPx2DNear.Y(), aPxNear);
|
|
return iErr;
|
|
}
|
|
//=======================================================================
|
|
//function : PointNearEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointNearEdge
|
|
(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
const Standard_Real aT,
|
|
gp_Pnt2d& aPx2DNear,
|
|
gp_Pnt& aPxNear,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Real aTolE, aTolF, dTx, dT2D;
|
|
Handle(Geom_Surface) aS;
|
|
GeomAdaptor_Surface aGAS;
|
|
//
|
|
dT2D=10.*BOPTools_AlgoTools3D::MinStepIn2d();//~1.e-5;
|
|
//
|
|
aS = BRep_Tool::Surface(aF);
|
|
aGAS.Load(aS);
|
|
if (aGAS.GetType()==GeomAbs_Cylinder ||
|
|
aGAS.GetType()==GeomAbs_Sphere) {
|
|
dT2D=10.*dT2D;
|
|
}
|
|
//
|
|
aTolE = BRep_Tool::Tolerance(aE);
|
|
aTolF = BRep_Tool::Tolerance(aF);
|
|
dTx = 2.*(aTolE + aTolF);
|
|
if (dTx > dT2D) {
|
|
dT2D=dTx;
|
|
}
|
|
//
|
|
Standard_Integer iErr = BOPTools_AlgoTools3D::PointNearEdge
|
|
(aE, aF, aT, dT2D, aPx2DNear, aPxNear);
|
|
if ((iErr != 1) && !theContext->IsPointInOnFace(aF, aPx2DNear)) {
|
|
gp_Pnt aP;
|
|
gp_Pnt2d aP2d;
|
|
//
|
|
iErr = BOPTools_AlgoTools3D::PointInFace
|
|
(aF, aE, aT, dT2D, aP, aP2d, theContext);
|
|
if (iErr == 0) {
|
|
aPxNear = aP;
|
|
aPx2DNear = aP2d;
|
|
}
|
|
else {
|
|
iErr = 2; // point is out of the face
|
|
}
|
|
}
|
|
//
|
|
return iErr;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : PointNearEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointNearEdge
|
|
(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
const Standard_Real aT,
|
|
const Standard_Real theStep,
|
|
gp_Pnt2d& aPx2DNear,
|
|
gp_Pnt& aPxNear,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Integer iErr = BOPTools_AlgoTools3D::PointNearEdge
|
|
(aE, aF, aT, theStep, aPx2DNear, aPxNear);
|
|
if ((iErr != 1) && !theContext->IsPointInOnFace(aF, aPx2DNear)) {
|
|
gp_Pnt aP;
|
|
gp_Pnt2d aP2d;
|
|
//
|
|
iErr = BOPTools_AlgoTools3D::PointInFace
|
|
(aF, aE, aT, theStep, aP, aP2d, theContext);
|
|
if (iErr == 0) {
|
|
aPxNear = aP;
|
|
aPx2DNear = aP2d;
|
|
}
|
|
else {
|
|
iErr = 2; // point is out of the face
|
|
}
|
|
}
|
|
//
|
|
return iErr;
|
|
}
|
|
//=======================================================================
|
|
// function: PointNearEdge
|
|
// purpose:
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointNearEdge
|
|
(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
gp_Pnt2d& aPInFace2D,
|
|
gp_Pnt& aPInFace,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Real aT, aT1, aT2;
|
|
//
|
|
// 1. compute parameter on edge
|
|
BRep_Tool::Range(aE, aT1, aT2);
|
|
aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2);
|
|
//
|
|
// 2. compute point inside the face near the edge
|
|
TopoDS_Face aFF=aF;
|
|
TopoDS_Edge aERight;
|
|
aFF.Orientation(TopAbs_FORWARD);
|
|
BOPTools_AlgoTools3D::OrientEdgeOnFace (aE, aFF, aERight);
|
|
//
|
|
Standard_Integer iErr = BOPTools_AlgoTools3D::PointNearEdge
|
|
(aERight, aFF, aT, aPInFace2D, aPInFace, theContext);
|
|
//
|
|
return iErr;
|
|
}
|
|
//=======================================================================
|
|
//function : MinStepIn2d
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Real BOPTools_AlgoTools3D::MinStepIn2d()
|
|
{
|
|
Standard_Real dt=1.e-5;
|
|
return dt;
|
|
}
|
|
//=======================================================================
|
|
//function : IsEmptyShape
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools3D::IsEmptyShape
|
|
(const TopoDS_Shape& aS)
|
|
{
|
|
Standard_Boolean bHasGeometry=Standard_False;
|
|
//
|
|
TopTools_IndexedMapOfShape myShapes;
|
|
//
|
|
Add(aS, myShapes, bHasGeometry);
|
|
|
|
return !bHasGeometry;
|
|
}
|
|
//=======================================================================
|
|
//function : Add
|
|
//purpose :
|
|
//=======================================================================
|
|
void Add(const TopoDS_Shape& aS,
|
|
TopTools_IndexedMapOfShape& myShapes,
|
|
Standard_Boolean& bHasGeometry)
|
|
{
|
|
Standard_Integer anIndex;
|
|
//
|
|
if (bHasGeometry) {
|
|
return;
|
|
}
|
|
//
|
|
if (aS.IsNull()) {
|
|
return;
|
|
}
|
|
//
|
|
TopoDS_Shape aSx = aS;
|
|
//
|
|
anIndex=myShapes.FindIndex(aSx);
|
|
if (!anIndex) {
|
|
bHasGeometry=HasGeometry (aSx);
|
|
if (bHasGeometry) {
|
|
return;
|
|
}
|
|
//
|
|
TopoDS_Iterator anIt(aSx, Standard_False, Standard_False);
|
|
for(; anIt.More(); anIt.Next()) {
|
|
const TopoDS_Shape& aSy=anIt.Value();
|
|
Add(aSy, myShapes, bHasGeometry);
|
|
//
|
|
if (bHasGeometry) {
|
|
return;
|
|
}
|
|
//
|
|
myShapes.Add(aSx);
|
|
}
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : HasGeometry
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean HasGeometry(const TopoDS_Shape& aS)
|
|
{
|
|
Standard_Boolean bHasGeometry=Standard_True;
|
|
TopAbs_ShapeEnum aType= aS.ShapeType();
|
|
|
|
if (aType == TopAbs_VERTEX) {
|
|
return bHasGeometry;
|
|
}
|
|
//
|
|
else if (aType == TopAbs_EDGE) {
|
|
Handle(BRep_TEdge) TE = Handle(BRep_TEdge)::DownCast(aS.TShape());
|
|
BRep_ListIteratorOfListOfCurveRepresentation itrc(TE->Curves());
|
|
|
|
while (itrc.More()) {
|
|
const Handle(BRep_CurveRepresentation)& CR = itrc.Value();
|
|
if (CR->IsCurve3D()) {
|
|
if (!CR->Curve3D().IsNull()) {
|
|
return bHasGeometry;
|
|
}
|
|
}
|
|
else if (CR->IsCurveOnSurface()) {
|
|
return bHasGeometry;
|
|
}
|
|
else if (CR->IsRegularity()) {
|
|
return bHasGeometry;
|
|
}
|
|
else if (!CR->Polygon3D().IsNull()) {
|
|
return bHasGeometry;
|
|
}
|
|
else if (CR->IsPolygonOnTriangulation()) {
|
|
return bHasGeometry;
|
|
}
|
|
else if (CR->IsPolygonOnSurface()) {
|
|
return bHasGeometry;
|
|
}
|
|
itrc.Next();
|
|
}
|
|
}
|
|
//
|
|
else if (aType == TopAbs_FACE) {
|
|
Handle(BRep_TFace) TF = Handle(BRep_TFace)::DownCast(aS.TShape());
|
|
if (!TF->Surface().IsNull()) {
|
|
return bHasGeometry;
|
|
}
|
|
Handle(Poly_Triangulation) Tr = TF->Triangulation();
|
|
if (!Tr.IsNull()) {
|
|
return bHasGeometry;
|
|
}
|
|
}
|
|
|
|
return !bHasGeometry;
|
|
}
|
|
//=======================================================================
|
|
//function : OrientEdgeOnFace
|
|
//purpose :
|
|
//=======================================================================
|
|
void BOPTools_AlgoTools3D::OrientEdgeOnFace (const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
TopoDS_Edge& aERight)
|
|
{
|
|
if (BRep_Tool::IsClosed(aE, aF)) {
|
|
aERight=aE;
|
|
aERight.Orientation(aE.Orientation());
|
|
|
|
Standard_Integer iFoundCount = 0;
|
|
TopoDS_Edge anEdge = aE;
|
|
TopExp_Explorer anExp(aF, TopAbs_EDGE);
|
|
|
|
for (; anExp.More(); anExp.Next()) {
|
|
const TopoDS_Shape& aSS=anExp.Current();
|
|
|
|
if (aSS.IsSame(aE)) {
|
|
anEdge = TopoDS::Edge(aSS);
|
|
iFoundCount++;
|
|
}
|
|
}
|
|
|
|
if(iFoundCount == 1) {
|
|
aERight = anEdge;
|
|
}
|
|
return;
|
|
}
|
|
|
|
TopExp_Explorer anExp(aF, TopAbs_EDGE);
|
|
for (; anExp.More(); anExp.Next()) {
|
|
const TopoDS_Shape& aSS=anExp.Current();
|
|
if (aSS.IsSame(aE)) {
|
|
aERight=aE;
|
|
aERight.Orientation(aSS.Orientation());
|
|
return;
|
|
}
|
|
}
|
|
aERight=aE;
|
|
aERight.Orientation(aE.Orientation());
|
|
}
|
|
//=======================================================================
|
|
//function : PointInFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointInFace
|
|
(const TopoDS_Face& theF,
|
|
gp_Pnt& theP,
|
|
gp_Pnt2d& theP2D,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Integer i, iErr = 1;
|
|
Standard_Real aUMin, aUMax, aVMin, aVMax, aUx;
|
|
//
|
|
theContext->UVBounds(theF, aUMin, aUMax, aVMin, aVMax);
|
|
//
|
|
gp_Dir2d aD2D(0. , 1.);
|
|
aUx = IntTools_Tools::IntermediatePoint(aUMin, aUMax);
|
|
//
|
|
for (i = 0; i < 2; ++i) {
|
|
gp_Pnt2d aP2D(aUx, 0.);
|
|
Handle(Geom2d_Line) aL2D = new Geom2d_Line (aP2D, aD2D);
|
|
iErr = BOPTools_AlgoTools3D::PointInFace
|
|
(theF, aL2D, theP, theP2D, theContext);
|
|
if (iErr == 0) {
|
|
// done
|
|
break;
|
|
}
|
|
else {
|
|
// possible reason - incorrect computation of the 2d box of the face.
|
|
// try to compute the point with the translated line.
|
|
aUx = aUMax - (aUx - aUMin);
|
|
}
|
|
}
|
|
//
|
|
return iErr;
|
|
}
|
|
//=======================================================================
|
|
//function : PointInFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointInFace
|
|
(const TopoDS_Face& theF,
|
|
const TopoDS_Edge& theE,
|
|
const Standard_Real theT,
|
|
const Standard_Real theDt2D,
|
|
gp_Pnt& theP,
|
|
gp_Pnt2d& theP2D,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Integer iErr;
|
|
Standard_Real f, l;
|
|
Handle(Geom2d_Curve) aC2D;
|
|
//
|
|
iErr = 0;
|
|
aC2D = BRep_Tool::CurveOnSurface (theE, theF, f, l);
|
|
if (aC2D.IsNull()) {
|
|
iErr = 5;
|
|
return iErr;
|
|
}
|
|
//
|
|
gp_Pnt2d aP2D;
|
|
gp_Vec2d aV2D;
|
|
//
|
|
aC2D->D1(theT, aP2D, aV2D);
|
|
gp_Dir2d aD2Dx(aV2D);
|
|
//
|
|
gp_Dir2d aD2D;
|
|
aD2D.SetCoord (-aD2Dx.Y(), aD2Dx.X());
|
|
//
|
|
if (theE.Orientation()==TopAbs_REVERSED){
|
|
aD2D.Reverse();
|
|
}
|
|
//
|
|
if (theF.Orientation()==TopAbs_REVERSED) {
|
|
aD2D.Reverse();
|
|
}
|
|
//
|
|
Handle(Geom2d_Line) aL2D = new Geom2d_Line(aP2D, aD2D);
|
|
Handle(Geom2d_TrimmedCurve) aL2DTrim =
|
|
new Geom2d_TrimmedCurve(aL2D, 0., Precision::Infinite());
|
|
//
|
|
iErr = BOPTools_AlgoTools3D::PointInFace
|
|
(theF, aL2DTrim, theP, theP2D, theContext, theDt2D);
|
|
//
|
|
return iErr;
|
|
}
|
|
//=======================================================================
|
|
//function : PointInFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools3D::PointInFace
|
|
(const TopoDS_Face& theF,
|
|
const Handle(Geom2d_Curve)& theL2D,
|
|
gp_Pnt& theP,
|
|
gp_Pnt2d& theP2D,
|
|
const Handle(IntTools_Context)& theContext,
|
|
const Standard_Real theDt2D)
|
|
{
|
|
Standard_Boolean bIsDone, bHasFirstPoint, bHasSecondPoint;
|
|
Standard_Integer iErr, aIH, aNbDomains;
|
|
Standard_Real aVx, aV1, aV2;
|
|
//
|
|
Geom2dHatch_Hatcher& aHatcher = theContext->Hatcher(theF);
|
|
//
|
|
Geom2dAdaptor_Curve aHCur(theL2D);
|
|
//
|
|
aHatcher.ClrHatchings();
|
|
aIH = aHatcher.AddHatching(aHCur);
|
|
//
|
|
iErr = 0;
|
|
for (;;) {
|
|
aHatcher.Trim();
|
|
bIsDone = aHatcher.TrimDone(aIH);
|
|
if (!bIsDone) {
|
|
iErr = 1;
|
|
break;
|
|
}
|
|
//
|
|
aHatcher.ComputeDomains(aIH);
|
|
bIsDone = aHatcher.IsDone(aIH);
|
|
if (!bIsDone) {
|
|
iErr = 2;
|
|
break;
|
|
}
|
|
//
|
|
aNbDomains = aHatcher.NbDomains(aIH);
|
|
if (aNbDomains == 0) {
|
|
iErr = 2;
|
|
break;
|
|
}
|
|
//
|
|
const HatchGen_Domain& aDomain = aHatcher.Domain (aIH, 1);
|
|
bHasFirstPoint = aDomain.HasFirstPoint();
|
|
if (!bHasFirstPoint) {
|
|
iErr = 3;
|
|
break;
|
|
}
|
|
//
|
|
bHasSecondPoint = aDomain.HasSecondPoint();
|
|
if (!bHasSecondPoint) {
|
|
iErr = 4;
|
|
break;
|
|
}
|
|
//
|
|
aV1 = aDomain.FirstPoint().Parameter();
|
|
aV2 = aDomain.SecondPoint().Parameter();
|
|
//
|
|
aVx = (theDt2D > 0. && (aV2 - aV1) > theDt2D) ? (aV1 + theDt2D) :
|
|
IntTools_Tools::IntermediatePoint(aV1, aV2);
|
|
//
|
|
Handle(Geom_Surface) aS = BRep_Tool::Surface(theF);
|
|
//
|
|
theL2D->D0(aVx, theP2D);
|
|
aS->D0(theP2D.X(), theP2D.Y(), theP);
|
|
break;
|
|
}
|
|
//
|
|
aHatcher.RemHatching(aIH);
|
|
return iErr;
|
|
}
|