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9775fa6110
Macro NO_CXX_EXCEPTION was removed from code. Method Raise() was replaced by explicit throw statement. Method Standard_Failure::Caught() was replaced by normal C++mechanism of exception transfer. Method Standard_Failure::Caught() is deprecated now. Eliminated empty constructors. Updated samples. Eliminate empty method ChangeValue from NCollection_Map class. Removed not operable methods from NCollection classes.
883 lines
23 KiB
C++
883 lines
23 KiB
C++
// Created on: 1998-06-08
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// Created by: Stephanie HUMEAU
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// Copyright (c) 1998-1999 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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#include <Adaptor3d_HCurve.hxx>
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#include <Adaptor3d_Surface.hxx>
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#include <Bnd_Box.hxx>
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#include <BndLib_Add3dCurve.hxx>
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#include <BndLib_AddSurface.hxx>
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#include <BRep_Builder.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepAdaptor_Curve.hxx>
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#include <BRepAdaptor_Surface.hxx>
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#include <BRepAlgo_DSAccess.hxx>
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#include <BRepBuilderAPI_Sewing.hxx>
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#include <BRepClass3d_SolidClassifier.hxx>
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#include <BRepExtrema_DistShapeShape.hxx>
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#include <BRepFill_DataMapOfShapeHArray2OfShape.hxx>
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#include <BRepFill_Draft.hxx>
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#include <BRepFill_DraftLaw.hxx>
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#include <BRepFill_SectionLaw.hxx>
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#include <BRepFill_ShapeLaw.hxx>
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#include <BRepFill_Sweep.hxx>
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#include <BRepLib_FindSurface.hxx>
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#include <BRepLib_MakeEdge.hxx>
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#include <BRepLib_MakeFace.hxx>
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#include <BRepLib_MakeWire.hxx>
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#include <BRepTools.hxx>
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#include <Geom_Geometry.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_RectangularTrimmedSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <GeomAdaptor_HSurface.hxx>
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#include <GeomAdaptor_Surface.hxx>
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#include <GeomFill_LocationDraft.hxx>
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#include <GeomLProp_SLProps.hxx>
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#include <gp_Ax3.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Lin.hxx>
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#include <gp_Mat.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Trsf.hxx>
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#include <Precision.hxx>
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#include <Standard_NoSuchObject.hxx>
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#include <StdFail_NotDone.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <TopAbs.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_Iterator.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Shell.hxx>
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#include <TopoDS_Solid.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#ifdef DRAW
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#include <Geom_Circle.hxx>
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#include <gp.hxx>
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#include <DBRep.hxx>
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#include <DrawTrSurf.hxx>
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static Standard_Boolean Affich = 0;
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#endif
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//=======================================================================
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//function : Trsf
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//purpose :
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//======================================================================
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static void ComputeTrsf(const TopoDS_Wire& W,
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const gp_Dir& D,
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Bnd_Box& Box,
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gp_Trsf& Tf)
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{
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// Calculate approximate barycenter
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BRepTools_WireExplorer Exp(W);
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// Class BRep_Tool without fields and without Constructor :
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// BRep_Tool BT;
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gp_XYZ Bary(0.,0.,0.);
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Standard_Integer nb;
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for (nb=0; Exp.More(); Exp.Next()) {
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// Bary += BT.Pnt(Exp.CurrentVertex()).XYZ();
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Bary += BRep_Tool::Pnt(Exp.CurrentVertex()).XYZ();
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nb++;
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}
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Bary /= nb;
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// Calculate the Transformation
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gp_Ax3 N(Bary, D);
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Tf.SetTransformation(N);
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BRepAdaptor_Curve AC;
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// BndLib_Add3dCurve BC;
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// transformation to the wire
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TopoDS_Wire TheW = W;
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TopLoc_Location Loc(Tf);
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TheW.Location(Loc);
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// Calculate the box
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Box.SetVoid();
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for (Exp.Init(TheW); Exp.More(); Exp.Next()) {
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AC.Initialize(Exp.Current());
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// BC.Add(AC, 0.1, Box);
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BndLib_Add3dCurve::Add(AC, 0.1, Box);
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}
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}
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//=======================================================================
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//function : Length
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//purpose :
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//======================================================================
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static Standard_Real Longueur(const Bnd_Box& WBox,
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const Bnd_Box& SBox,
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gp_Dir& D,
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gp_Pnt& P)
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{
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// face of the box most remoted from the face input in
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// the direction of skin
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Standard_Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax,WZmin,WZmax,L;
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//"coord" of the box
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WBox.Get(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax);
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WZmin = Zmin;
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WZmax = Zmax;
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SBox.Get(Xmin,Ymin,Zmin,Xmax,Ymax,Zmax);
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P.SetCoord( (Xmin+Xmax)/2, (Ymin+Ymax)/2, Zmax);
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if (Zmax < WZmin) {
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// Skin in the wrong direction. Invert...
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D.Reverse();
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L = WZmax - Zmin;
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P.SetZ(Zmin);
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}
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else {
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L = Zmax - WZmin;
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}
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return L;
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}
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//=======================================================================
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//function : GoodOrientation
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//purpose : Check if the law is oriented to have an exterior skin
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//======================================================================
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static Standard_Boolean GoodOrientation(const Bnd_Box& B,
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const Handle(BRepFill_LocationLaw)& Law,
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const gp_Dir& D)
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{
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Standard_Real f, l, r, t;
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Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
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B.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
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gp_Pnt P1(aXmin, aYmin, aZmin), P2(aXmax, aYmax, aZmax);
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gp_Vec V(P1, P2);
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Law->CurvilinearBounds(Law->NbLaw(), f, l);
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r = V.Magnitude()/l;
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Standard_Integer ii, Ind;
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//#ifndef OCCT_DEBUG
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Standard_Integer Nb = (Standard_Integer) (4+(10*r));
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//#else
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// Standard_Integer Nb = 4+(10*r);
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//#endif
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r = l/Nb;
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Nb++; // Number of points
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TColgp_Array1OfPnt Pnts(1, Nb);
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Handle(Adaptor3d_HCurve) AC;
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gp_XYZ Bary(0.,0.,0.);
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for (ii=1; ii<=Nb; ii++) {
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Law->Parameter((ii-1)*r, Ind, t);
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AC = Law->Law(Ind)->GetCurve();
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AC->D0(t, Pnts(ii));
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Bary+= Pnts(ii).XYZ();
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}
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Bary /= Nb;
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gp_Pnt Centre(Bary);
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gp_Vec Normal(D.XYZ());
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Standard_Real Angle = 0;
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gp_Vec Ref(Centre, Pnts(1));
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for (ii=2; ii<=Nb; ii++) {
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gp_Vec R(Centre, Pnts(ii));
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Angle += Ref.AngleWithRef(R, Normal);
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Ref = R;
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}
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return (Angle >= 0);
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}
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//=======================================================================
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//function : Constructeur
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//purpose :
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//======================================================================
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BRepFill_Draft::BRepFill_Draft(const TopoDS_Shape& S,
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const gp_Dir& Dir,
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const Standard_Real Angle)
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{
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myLoc.Nullify();
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mySec.Nullify();
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myFaces.Nullify();
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mySections.Nullify();
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switch (S.ShapeType()) {
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case TopAbs_WIRE :
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{
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myWire = TopoDS::Wire(S);
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break;
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}
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case TopAbs_FACE :
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{
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TopoDS_Iterator Exp (S);
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myWire = TopoDS::Wire(Exp.Value());
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break;
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}
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case TopAbs_SHELL :
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{
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TopTools_ListOfShape List;
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TopTools_IndexedDataMapOfShapeListOfShape edgemap;
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TopExp::MapShapesAndAncestors(S,TopAbs_EDGE,TopAbs_FACE,edgemap);
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Standard_Integer iedge, nbf;
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for (iedge = 1; iedge <= edgemap.Extent(); iedge++) {
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const TopoDS_Edge& theEdge = TopoDS::Edge(edgemap.FindKey(iedge));
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// skip degenerated edges
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if (!BRep_Tool::Degenerated(theEdge)) {
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nbf = edgemap(iedge).Extent();
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if (nbf==1) List.Append(theEdge);
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}
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}
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if( List.Extent()>0) {
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BRepLib_MakeWire MW;
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MW.Add(List);
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BRepLib_WireError Err = MW.Error();
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if (Err == BRepLib_WireDone) {
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myWire = MW.Wire();
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}
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else {
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#ifdef OCCT_DEBUG
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cout << "Error in MakeWire" << endl;
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#endif
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throw Standard_ConstructionError("BRepFill_Draft");
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}
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}
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else {
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#ifdef OCCT_DEBUG
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cout << "No Free Borders !" << endl;
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#endif
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throw Standard_ConstructionError("BRepFill_Draft");
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}
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break;
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}
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default :
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throw Standard_ConstructionError("BRepFill_Draft");
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}
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// Attention to closed non declared wires !
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if (!myWire.Closed()) {
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TopoDS_Vertex Vf, Vl;
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TopExp::Vertices(myWire, Vf, Vl);
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if (Vf.IsSame(Vl)) myWire.Closed(Standard_True);
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}
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#if DRAW
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if (Affich) {
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DBRep::Set("TheWire", myWire);
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}
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#endif
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myAngle = Abs(Angle);
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myDir = Dir;
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myTop = S;
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myDone = Standard_False;
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myTol = 1.e-4;
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myCont = GeomAbs_C1;
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SetOptions();
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SetDraft();
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}
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//=======================================================================
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//function :SetOptions
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//purpose : Defines the style
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//======================================================================
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void BRepFill_Draft::SetOptions(const BRepFill_TransitionStyle Style,
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const Standard_Real Min,
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const Standard_Real Max)
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{
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myStyle = Style;
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angmin = Min;
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angmax = Max;
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}
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//=======================================================================
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//function :SetDraft
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//purpose :
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//======================================================================
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void BRepFill_Draft::SetDraft(const Standard_Boolean Internal)
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{
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IsInternal = Internal;
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}
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//=======================================================================
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//function :Perform
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//purpose : calculate a surface of skinning
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//======================================================================
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void BRepFill_Draft::Perform(const Standard_Real LengthMax)
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{
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Handle(Geom_Surface) S;
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S.Nullify();
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Bnd_Box WBox;//, SBox;
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gp_Trsf Trsf;
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ComputeTrsf(myWire, myDir, WBox, Trsf);
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Init(S, LengthMax, WBox);
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BuildShell(S);
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Sewing();
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}
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//=======================================================================
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//function :Perform
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//purpose : calculate a surface of skinning
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//======================================================================
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void BRepFill_Draft::Perform(const Handle(Geom_Surface)& Surface,
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const Standard_Boolean KeepInsideSurface)
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{
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Bnd_Box WBox, SBox;
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gp_Trsf Trsf;
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gp_Pnt Pt;
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Standard_Real L;
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ComputeTrsf(myWire, myDir, WBox, Trsf);
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// box with bounds of the stop surface
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Handle(Geom_Surface) Surf;
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Surf = Handle(Geom_Surface)::DownCast(Surface->Transformed(Trsf));
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GeomAdaptor_Surface S1 (Surf);
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// BndLib_AddSurface AS;
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// AS.Add(S1, 0.1, SBox);
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BndLib_AddSurface::Add(S1, 0.1, SBox);
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// calculate the maximum length of the rule.
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L = Longueur(WBox, SBox, myDir, Pt);
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L /= Abs(Cos(myAngle));
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// Construction
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Init(Surface, L, WBox);
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BuildShell(Surface, !KeepInsideSurface);
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Sewing();
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}
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//================================================================
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//function :Perform
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//purpose : calculate the surface of skinning, stopped by a shape
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//================================================================
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void BRepFill_Draft::Perform(const TopoDS_Shape& StopShape,
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const Standard_Boolean KeepOutSide)
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{
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Bnd_Box WBox, SBox;
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gp_Trsf Trsf;
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gp_Pnt Pt;
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Standard_Real L;
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ComputeTrsf(myWire, myDir, WBox, Trsf);
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// bounding box of the stop shape
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Bnd_Box BSurf;//, TheBox;
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Standard_Real Umin, Umax, Vmin, Vmax;
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// BRepTools B;
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// BRep_Tool BT;
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Handle(Geom_Surface) Surf;
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// BndLib_AddSurface AS;
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TopExp_Explorer Ex (StopShape, TopAbs_FACE);
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SBox.SetVoid();
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while (Ex.More()) { // parse faces of the stop shape
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// B.UVBounds(TopoDS::Face(Ex.Current()), Umin,Umax,Vmin,Vmax);
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BRepTools::UVBounds(TopoDS::Face(Ex.Current()), Umin,Umax,Vmin,Vmax);
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Surf = Handle(Geom_Surface)::DownCast(
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// BT.Surface(TopoDS::Face(Ex.Current()))->Transformed(Trsf) );
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BRep_Tool::Surface(TopoDS::Face(Ex.Current()))->Transformed(Trsf) );
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GeomAdaptor_Surface S1 (Surf);
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// bounding box of the current face
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// AS.Add(S1, Umin, Umax, Vmin, Vmax, 0.1, BSurf);
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BndLib_AddSurface::Add(S1, Umin, Umax, Vmin, Vmax, 0.1, BSurf);
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SBox.Add(BSurf); // group boxes
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Ex.Next();
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}// while_Ex
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// calculate the maximum length of the rule.
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L = Longueur(WBox, SBox, myDir, Pt);
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L /= Abs(Cos(myAngle));
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// surface of stop
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gp_Trsf Inv;
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Inv = Trsf.Inverted(); // inverted transformation
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Pt.Transform(Inv); // coordinate in the absolute reference
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Handle(Geom_Plane) Plan = new (Geom_Plane)(Pt, myDir);
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Surf = new (Geom_RectangularTrimmedSurface) (Plan,-L, L, -L, L);
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#if DRAW
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if (Affich) {
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char* Temp = "ThePlan" ;
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DrawTrSurf::Set(Temp, Surf);
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// DrawTrSurf::Set("ThePlan", Surf);
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}
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#endif
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// Sweeping and restriction
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Init(Plan, L*1.01, WBox);
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BuildShell(Surf, Standard_False);
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Fuse(StopShape, KeepOutSide);
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Sewing();
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}
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//=======================================================================
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//function : Init
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//purpose : Construction of laws.
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//======================================================================
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void BRepFill_Draft::Init(const Handle(Geom_Surface)& ,
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const Standard_Real Length,
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const Bnd_Box& Box)
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{
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Standard_Boolean B;
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// law of positioning
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Handle(GeomFill_LocationDraft) Loc
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= new (GeomFill_LocationDraft) (myDir, myAngle);
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myLoc = new (BRepFill_DraftLaw) (myWire, Loc);
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B = GoodOrientation(Box, myLoc, myDir);
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if (IsInternal ^ (!B) ) {
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myAngle = - myAngle;
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Loc->SetAngle(myAngle);
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myLoc = new (BRepFill_DraftLaw) (myWire, Loc);
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}
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myLoc->CleanLaw(angmin); // Clean small discontinuities.
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// law of section
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// generating line is straight and parallel to binormal.
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gp_Pnt P(0, 0, 0);
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gp_Vec D (0., 1., 0.);
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// Control of the orientation
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Standard_Real f,l;
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myLoc->Law(1)->GetDomain(f,l);
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gp_Mat M;
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gp_Vec Bid;
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myLoc->Law(1)->D0( (f+l)/2, M, Bid);
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gp_Dir BN(M.Column(2));
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Standard_Real ang = myDir.Angle(BN);
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if (ang > M_PI/2) D.Reverse();
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Handle(Geom_Line) L = new (Geom_Line) (P, D);
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Handle(Geom_Curve) TC = new (Geom_TrimmedCurve) (L, 0, Length);
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#if DRAW
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if (Affich > 2) {
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TC = new (Geom_Circle) (gp::XOY(), Length);
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}
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#endif
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BRepLib_MakeEdge ME(TC);
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TopoDS_Edge EG = ME.Edge();
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BRepLib_MakeWire MW(EG);
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TopoDS_Wire G = MW.Wire();
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mySec = new (BRepFill_ShapeLaw) (G, Standard_True);
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : BuildShell
|
|
//purpose : Construction of the skinning surface
|
|
//======================================================================
|
|
void BRepFill_Draft::BuildShell(const Handle(Geom_Surface)& Surf,
|
|
const Standard_Boolean KeepOutSide)
|
|
{
|
|
// construction of the surface
|
|
BRepFill_Sweep Sweep(mySec, myLoc, Standard_True);
|
|
Sweep.SetTolerance(myTol);
|
|
Sweep.SetAngularControl(angmin, angmax);
|
|
TopTools_MapOfShape Dummy;
|
|
BRepFill_DataMapOfShapeHArray2OfShape Dummy2;
|
|
BRepFill_DataMapOfShapeHArray2OfShape Dummy3;
|
|
Sweep.Build(Dummy, Dummy2, Dummy3, myStyle, myCont);
|
|
if (Sweep.IsDone()) {
|
|
myShape = Sweep.Shape();
|
|
myShell = TopoDS::Shell(myShape);
|
|
myFaces = Sweep.SubShape();
|
|
mySections = Sweep.Sections();
|
|
myDone = Standard_True;
|
|
// Control of the orientation
|
|
Standard_Boolean out=Standard_True;
|
|
TopExp_Explorer ex(myShell,TopAbs_FACE);
|
|
TopoDS_Face F;
|
|
F = TopoDS::Face(ex.Current());
|
|
BRepAdaptor_Surface SF(F);
|
|
Standard_Real u, v;
|
|
gp_Pnt P;
|
|
gp_Vec V1, V2, V;
|
|
u = SF.FirstUParameter();
|
|
v = SF.FirstVParameter();
|
|
SF.D1(u,v,P,V1,V2);
|
|
V = V1.Crossed(V2);
|
|
if (F.Orientation() == TopAbs_REVERSED) V.Reverse();
|
|
if (V.Magnitude() > 1.e-10) {
|
|
out = myDir.Angle(V) > M_PI/2;
|
|
}
|
|
if (out == IsInternal) {
|
|
myShell.Reverse();
|
|
myShape.Reverse();
|
|
}
|
|
}
|
|
else {
|
|
myDone = Standard_False;
|
|
return;
|
|
}
|
|
|
|
if (!Surf.IsNull()) { // Add the face at end
|
|
|
|
// Waiting the use of traces & retriction in BRepFill_Sweep
|
|
// Make Fuse.
|
|
BRepLib_MakeFace MkF;
|
|
MkF.Init(Surf, Standard_True, Precision::Confusion());
|
|
Fuse(MkF.Face(), KeepOutSide);
|
|
}
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Fuse
|
|
//purpose : Boolean operation between the skin and the
|
|
// stop shape
|
|
//======================================================================
|
|
Standard_Boolean BRepFill_Draft::Fuse(const TopoDS_Shape& StopShape,
|
|
const Standard_Boolean KeepOutSide)
|
|
{
|
|
BRep_Builder B;
|
|
Standard_Boolean issolid = Standard_False;
|
|
TopoDS_Solid Sol1, Sol2;
|
|
TopAbs_State State1 = TopAbs_OUT, State2 = TopAbs_OUT;
|
|
|
|
|
|
if (myShape.ShapeType()==TopAbs_SOLID) {
|
|
Sol1 = TopoDS::Solid(myShape);
|
|
issolid = Standard_True;
|
|
}
|
|
else {
|
|
B.MakeSolid(Sol1);
|
|
B.Add(Sol1, myShape); // shell => solid (for fusion)
|
|
}
|
|
|
|
|
|
switch (StopShape.ShapeType()) {
|
|
case TopAbs_COMPOUND :
|
|
{
|
|
TopoDS_Iterator It(StopShape);
|
|
return Fuse(It.Value(), KeepOutSide);
|
|
}
|
|
case TopAbs_SOLID :
|
|
{
|
|
Sol2 = TopoDS::Solid(StopShape);
|
|
break;
|
|
}
|
|
case TopAbs_SHELL :
|
|
{
|
|
B.MakeSolid(Sol2);
|
|
B.Add(Sol2, StopShape); // shell => solid (for fusion)
|
|
break;
|
|
}
|
|
|
|
case TopAbs_FACE :
|
|
{
|
|
TopoDS_Shell S;
|
|
B.MakeShell(S);
|
|
B.Add(S, StopShape);
|
|
S.Closed (BRep_Tool::IsClosed (S));
|
|
B.MakeSolid(Sol2);
|
|
B.Add(Sol2, S); // shell => solid (for fusion)
|
|
break;
|
|
}
|
|
|
|
default :
|
|
{
|
|
return Standard_False; // Impossible to do
|
|
}
|
|
}
|
|
|
|
BRepAlgo_DSAccess DSA;
|
|
DSA.Load(Sol1, Sol2);
|
|
DSA.Intersect(Sol1, Sol2); // intersection of 2 solids
|
|
|
|
// removal of edges corresponding to "unused" intersections
|
|
Standard_Integer NbPaquet;
|
|
// gp_Pnt P1,P2;
|
|
TopoDS_Vertex V,V1;
|
|
TopTools_ListOfShape List;
|
|
List = DSA.GetSectionEdgeSet();// list of edges
|
|
|
|
NbPaquet = List.Extent();
|
|
|
|
if (NbPaquet == 0) {
|
|
#if DRAW
|
|
cout << "No fusion" << endl;
|
|
DBRep::Set("DepPart", Sol1);
|
|
DBRep::Set("StopPart", Sol2);
|
|
#endif
|
|
return Standard_False;
|
|
}
|
|
|
|
if (NbPaquet > 1) {
|
|
// It is required to select packs.
|
|
TColStd_Array1OfReal Dist(1, NbPaquet);
|
|
TopTools_ListIteratorOfListOfShape it(List);
|
|
Standard_Real D, Dmin = 1.e10;
|
|
Standard_Integer ii;
|
|
|
|
//Classify the packs by distance.
|
|
BRepExtrema_DistShapeShape Dist2;
|
|
Dist2.LoadS1( myWire );
|
|
for (ii=1; it.More();it.Next(),ii++){
|
|
Dist2.LoadS2( it.Value() );
|
|
Dist2.Perform();
|
|
if (Dist2.IsDone()) {
|
|
D = Dist2.Value();
|
|
Dist(ii) = D;
|
|
if (D < Dmin) Dmin = D;
|
|
}
|
|
else
|
|
Dist(ii) = 1.e10;
|
|
}
|
|
|
|
// remove edges "farther" than Dmin
|
|
for (ii=1, it.Initialize(List); it.More();it.Next(), ii++){
|
|
if (Dist(ii) > Dmin) {
|
|
DSA.SuppressEdgeSet(it.Value());
|
|
}
|
|
#if DRAW
|
|
else if (Affich) {
|
|
DBRep::Set("KeepEdges", it.Value());
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (StopShape.ShapeType() != TopAbs_SOLID) {
|
|
// It is required to choose the state by the geometry
|
|
|
|
//(1) Return an edge of section
|
|
List = DSA.GetSectionEdgeSet();// list of edges
|
|
TopTools_ListIteratorOfListOfShape it(List);
|
|
TopoDS_Iterator iter(it.Value());
|
|
TopoDS_Edge E = TopoDS::Edge(iter.Value());
|
|
|
|
//(2) Return geometry on StopShape
|
|
// Class BRep_Tool without fields and without Constructor :
|
|
// BRep_Tool BT;
|
|
Handle(Geom_Surface) S;
|
|
Handle(Geom2d_Curve) C2d;
|
|
gp_Pnt2d P2d;
|
|
Standard_Real f,l;
|
|
TopLoc_Location L;
|
|
// BT.CurveOnSurface(E, C2d, S, L, f, l, 2);
|
|
BRep_Tool::CurveOnSurface(E, C2d, S, L, f, l, 2);
|
|
|
|
// Find a normal.
|
|
C2d->D0((f+l)/2,P2d);
|
|
GeomLProp_SLProps SP(S, P2d.X(), P2d.Y(), 1, 1.e-12);
|
|
if (! SP.IsNormalDefined()) {
|
|
C2d->D0((3*f+l)/4,P2d);
|
|
SP.SetParameters(P2d.X(), P2d.Y());
|
|
if ( !SP.IsNormalDefined()) {
|
|
C2d->D0((f+3*l)/4,P2d);
|
|
SP.SetParameters(P2d.X(), P2d.Y());
|
|
}
|
|
}
|
|
|
|
// Subtract State1
|
|
if (myDir.Angle(SP.Normal()) < M_PI/2) State1 = TopAbs_IN;
|
|
else State1 = TopAbs_OUT;
|
|
}
|
|
|
|
if (! KeepOutSide) { // Invert State2;
|
|
if (State2 == TopAbs_IN) State2 = TopAbs_OUT;
|
|
else State2 = TopAbs_IN;
|
|
}
|
|
|
|
//recalculate the final shape
|
|
TopoDS_Shape result = DSA.Merge(State1, State2);
|
|
|
|
if (issolid) myShape = result;
|
|
else {
|
|
TopExp_Explorer Exp;
|
|
Exp.Init(result, TopAbs_SHELL);
|
|
if (Exp.More()) myShape = Exp.Current();
|
|
}
|
|
|
|
// Update the History
|
|
Standard_Integer ii;
|
|
for (ii=1; ii<=myLoc->NbLaw(); ii++) {
|
|
const TopTools_ListOfShape& L = DSA.Modified(myFaces->Value(1,ii));
|
|
if (L.Extent()>0)
|
|
myFaces->SetValue(1, ii, L.First());
|
|
}
|
|
for (ii=1; ii<=myLoc->NbLaw()+1; ii++) {
|
|
const TopTools_ListOfShape& L = DSA.Modified(mySections->Value(1,ii));
|
|
if (L.Extent()>0)
|
|
mySections->SetValue(1, ii, L.First());
|
|
}
|
|
|
|
return Standard_True;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Sewing
|
|
//purpose : Assemble the skin with the above face
|
|
//======================================================================
|
|
Standard_Boolean BRepFill_Draft::Sewing()
|
|
{
|
|
Standard_Boolean ToAss;
|
|
Standard_Boolean Ok = Standard_False;
|
|
ToAss = (myTop.ShapeType() != TopAbs_WIRE);
|
|
|
|
if ((!ToAss) || (!myDone)) return Standard_False;
|
|
|
|
// Assembly make a shell from the faces of the shape + the input shape
|
|
Handle(BRepBuilderAPI_Sewing) Ass = new BRepBuilderAPI_Sewing(5*myTol, Standard_True,
|
|
Standard_True, Standard_False);
|
|
Ass->Add(myShape);
|
|
Ass->Add(myTop);
|
|
ToAss = Standard_True;
|
|
|
|
|
|
Standard_Integer NbCE;
|
|
|
|
Ass->Perform();
|
|
// Check if the assembly is real.
|
|
NbCE = Ass->NbContigousEdges();
|
|
|
|
if (NbCE > 0) {
|
|
TopoDS_Shape res;
|
|
res = Ass->SewedShape();
|
|
if ((res.ShapeType() == TopAbs_SHELL)||
|
|
(res.ShapeType() == TopAbs_SOLID)) {
|
|
myShape = res;
|
|
Ok = Standard_True;
|
|
}
|
|
else if (res.ShapeType() == TopAbs_COMPOUND) {
|
|
TopoDS_Iterator It(res);
|
|
res = It.Value();
|
|
It.Next();
|
|
if (!It.More()) {//Only one part => this is correct
|
|
myShape = res;
|
|
Ok = Standard_True;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (Ok) {
|
|
// Update the History
|
|
Standard_Integer ii;
|
|
for (ii=1; ii<=myLoc->NbLaw(); ii++) {
|
|
if (Ass->IsModified(myFaces->Value(1,ii)))
|
|
myFaces->SetValue(1, ii,
|
|
Ass->Modified(myFaces->Value(1,ii)));
|
|
}
|
|
for (ii=1; ii<=myLoc->NbLaw()+1; ii++) {
|
|
if (Ass->IsModified(mySections->Value(1,ii)))
|
|
mySections->SetValue(1, ii,
|
|
Ass->Modified(mySections->Value(1,ii)));
|
|
}
|
|
|
|
if (myShape.Closed()) { // Make a Solid
|
|
TopoDS_Solid solid;
|
|
BRep_Builder BS;
|
|
BS.MakeSolid(solid);
|
|
BS.Add(solid,TopoDS::Shell(myShape));
|
|
|
|
BRepClass3d_SolidClassifier SC(solid);
|
|
SC.PerformInfinitePoint(Precision::Confusion());
|
|
if ( SC.State() == TopAbs_IN) {
|
|
BS.MakeSolid(solid);
|
|
myShape.Reverse();
|
|
BS.Add(solid,TopoDS::Shell(myShape));
|
|
}
|
|
myShape = solid;
|
|
}
|
|
}
|
|
#ifdef OCCT_DEBUG
|
|
else cout << "Draft : No assembly !" << endl;
|
|
#endif
|
|
return Ok;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Generated
|
|
//purpose : return a sub-part generated by sweeping
|
|
//======================================================================
|
|
const TopTools_ListOfShape&
|
|
BRepFill_Draft::Generated(const TopoDS_Shape& S)
|
|
{
|
|
myGenerated.Clear();
|
|
TopoDS_Edge E;
|
|
Standard_Integer ii;
|
|
E = TopoDS::Edge(S);
|
|
if (E.IsNull()) {
|
|
for (ii=0; ii<=myLoc->NbLaw(); ii++)
|
|
if (E.IsSame(myLoc->Vertex(ii))) {
|
|
myGenerated.Append(mySections->Value(1, ii+1));
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
for (ii=1; ii<=myLoc->NbLaw(); ii++)
|
|
if (E.IsSame(myLoc->Edge(ii))) {
|
|
myGenerated.Append(myFaces->Value(1, ii));
|
|
break;
|
|
}
|
|
}
|
|
|
|
return myGenerated;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Shape
|
|
//purpose : return the complete shape
|
|
//======================================================================
|
|
TopoDS_Shape BRepFill_Draft::Shape()const
|
|
{
|
|
return myShape;
|
|
}
|
|
|
|
//=====================================================================
|
|
//function : Shell
|
|
//purpose : surface of skinning with the input face (=>shell)
|
|
//=====================================================================
|
|
TopoDS_Shell BRepFill_Draft::Shell()const
|
|
{
|
|
return myShell;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : IsDone
|
|
//purpose :
|
|
//======================================================================
|
|
Standard_Boolean BRepFill_Draft::IsDone()const
|
|
{
|
|
return myDone;
|
|
}
|