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711 lines
24 KiB
C++
711 lines
24 KiB
C++
// Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// File: BlockFix_UnionFaces.cxx
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// Created: Tue Dec 7 17:15:42 2004
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// Author: Pavel DURANDIN
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#include <BlockFix_UnionFaces.ixx>
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#include <ShapeAnalysis_WireOrder.hxx>
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#include <ShapeAnalysis_Edge.hxx>
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#include <ShapeBuild_Edge.hxx>
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#include <ShapeBuild_ReShape.hxx>
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#include <ShapeExtend_WireData.hxx>
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#include <ShapeExtend_CompositeSurface.hxx>
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#include <ShapeFix_Face.hxx>
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#include <ShapeFix_ComposeShell.hxx>
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#include <ShapeFix_SequenceOfWireSegment.hxx>
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#include <ShapeFix_WireSegment.hxx>
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#include <ShapeFix_Wire.hxx>
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#include <ShapeFix_Edge.hxx>
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#include <IntPatch_TheIIIntOfIntersection.hxx>
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#include <BRep_Tool.hxx>
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#include <BRep_Builder.hxx>
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#include <BRepTools.hxx>
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#include <BRepTopAdaptor_TopolTool.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#include <TopTools_SequenceOfShape.hxx>
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#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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#include <TopTools_MapOfShape.hxx>
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#include <TopTools_MapIteratorOfMapOfShape.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Solid.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Shell.hxx>
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#include <TopoDS_Iterator.hxx>
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#include <TColGeom_HArray2OfSurface.hxx>
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#include <GeomAdaptor_HSurface.hxx>
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#include <GeomLib_IsPlanarSurface.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_OffsetSurface.hxx>
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#include <Geom_SphericalSurface.hxx>
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#include <Geom_CylindricalSurface.hxx>
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#include <Geom_SurfaceOfRevolution.hxx>
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#include <Geom_SurfaceOfLinearExtrusion.hxx>
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#include <Geom_RectangularTrimmedSurface.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Circle.hxx>
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#include <Geom2d_Line.hxx>
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#include <gp_XY.hxx>
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#include <gp_Pnt2d.hxx>
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#include <Standard_Failure.hxx>
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#include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
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//=======================================================================
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//function : BlockFix_UnionFaces
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//purpose :
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//=======================================================================
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BlockFix_UnionFaces::BlockFix_UnionFaces()
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: myTolerance(Precision::Confusion()),
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myOptimumNbFaces(6)
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{
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}
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//=======================================================================
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//function : GetTolerance
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//purpose :
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//=======================================================================
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Standard_Real& BlockFix_UnionFaces::GetTolerance()
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{
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return myTolerance;
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}
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//=======================================================================
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//function : GetOptimumNbFaces
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//purpose :
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//=======================================================================
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Standard_Integer& BlockFix_UnionFaces::GetOptimumNbFaces()
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{
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return myOptimumNbFaces;
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}
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//=======================================================================
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//function : AddOrdinaryEdges
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//purpose : auxilary
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//=======================================================================
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// adds edges from the shape to the sequence
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// seams and equal edges are dropped
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// Returns true if one of original edges dropped
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static Standard_Boolean AddOrdinaryEdges(TopTools_SequenceOfShape& edges,
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const TopoDS_Shape aShape,
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Standard_Integer& anIndex)
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{
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//map of edges
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TopTools_MapOfShape aNewEdges;
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//add edges without seams
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for(TopExp_Explorer exp(aShape,TopAbs_EDGE); exp.More(); exp.Next()) {
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TopoDS_Shape edge = exp.Current();
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if(aNewEdges.Contains(edge))
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aNewEdges.Remove(edge);
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else
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aNewEdges.Add(edge);
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}
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Standard_Boolean isDropped = Standard_False;
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//merge edges and drop seams
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for(Standard_Integer i = 1; i <= edges.Length(); i++) {
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TopoDS_Shape current = edges(i);
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if(aNewEdges.Contains(current)) {
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aNewEdges.Remove(current);
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edges.Remove(i);
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i--;
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if(!isDropped) {
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isDropped = Standard_True;
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anIndex = i;
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}
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}
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}
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//add edges to the sequemce
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for(TopTools_MapIteratorOfMapOfShape anIter(aNewEdges); anIter.More(); anIter.Next())
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edges.Append(anIter.Key());
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return isDropped;
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}
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//=======================================================================
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//function : ClearRts
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//purpose : auxilary
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//=======================================================================
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static Handle(Geom_Surface) ClearRts(const Handle(Geom_Surface)& aSurface)
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{
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if(aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
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Handle(Geom_RectangularTrimmedSurface) rts =
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Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
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return rts->BasisSurface();
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}
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return aSurface;
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}
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//=======================================================================
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//function : Perform
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//purpose :
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//=======================================================================
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TopoDS_Shape BlockFix_UnionFaces::Perform(const TopoDS_Shape& Shape)
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{
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Handle(ShapeBuild_ReShape) myContext = new ShapeBuild_ReShape;
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TopoDS_Shape aResShape = myContext->Apply(Shape);
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// processing each solid
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TopExp_Explorer exps;
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for (exps.Init(Shape, TopAbs_SOLID); exps.More(); exps.Next()) {
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TopoDS_Solid aSolid = TopoDS::Solid(exps.Current());
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// creating map of edge faces
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TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
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TopExp::MapShapesAndAncestors(aSolid, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
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// map of processed shapes
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TopTools_MapOfShape aProcessed;
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Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
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Standard_Integer NbModif = 0;
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Standard_Boolean hasFailed = Standard_False;
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Standard_Real tol = Min(Max(Precision::Confusion(), myTolerance/10.), 0.1);
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// count faces
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int nbf = 0;
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TopExp_Explorer exp;
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TopTools_MapOfShape mapF;
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for (exp.Init(aSolid, TopAbs_FACE); exp.More(); exp.Next()) {
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if (mapF.Add(exp.Current()))
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nbf++;
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}
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bool doUnion = ((myOptimumNbFaces == 0) ||
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((myOptimumNbFaces > 0) && (nbf > myOptimumNbFaces)));
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// processing each face
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mapF.Clear();
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for (exp.Init(aSolid, TopAbs_FACE); exp.More() && doUnion; exp.Next()) {
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TopoDS_Face aFace = TopoDS::Face(exp.Current().Oriented(TopAbs_FORWARD));
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if (aProcessed.Contains(aFace))
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continue;
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Standard_Integer dummy;
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TopTools_SequenceOfShape edges;
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AddOrdinaryEdges(edges,aFace,dummy);
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TopTools_SequenceOfShape faces;
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faces.Append(aFace);
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//surface and location to construct result
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TopLoc_Location aBaseLocation;
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Handle(Geom_Surface) aBaseSurface = BRep_Tool::Surface(aFace,aBaseLocation);
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aBaseSurface = ClearRts(aBaseSurface);
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// find adjacent faces to union
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Standard_Integer i;
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for (i = 1; i <= edges.Length(); i++) {
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TopoDS_Edge edge = TopoDS::Edge(edges(i));
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if (BRep_Tool::Degenerated(edge))
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continue;
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const TopTools_ListOfShape& aList = aMapEdgeFaces.FindFromKey(edge);
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TopTools_ListIteratorOfListOfShape anIter(aList);
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for (; anIter.More(); anIter.Next()) {
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TopoDS_Face anCheckedFace = TopoDS::Face(anIter.Value().Oriented(TopAbs_FORWARD));
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if (anCheckedFace.IsSame(aFace))
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continue;
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if (aProcessed.Contains(anCheckedFace))
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continue;
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if (IsSameDomain(aFace,anCheckedFace)) {
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if (aList.Extent() != 2) {
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// non mainfold case is not processed
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continue;
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}
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// replacing pcurves
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TopoDS_Face aMockUpFace;
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BRep_Builder B;
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B.MakeFace(aMockUpFace,aBaseSurface,aBaseLocation,0.);
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MovePCurves(aMockUpFace,anCheckedFace);
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if (AddOrdinaryEdges(edges,aMockUpFace,dummy)) {
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// sequence edges is modified
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i = dummy;
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}
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faces.Append(anCheckedFace);
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aProcessed.Add(anCheckedFace);
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break;
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}
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}
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}
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// all faces collected in the sequence. Perform union of faces
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if (faces.Length() > 1) {
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NbModif++;
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TopoDS_Face aResult;
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BRep_Builder B;
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B.MakeFace(aResult,aBaseSurface,aBaseLocation,0);
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Standard_Integer nbWires = 0;
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// connecting wires
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while (edges.Length()>0) {
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Standard_Boolean isEdge3d = Standard_False;
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nbWires++;
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TopTools_MapOfShape aVertices;
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TopoDS_Wire aWire;
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B.MakeWire(aWire);
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TopoDS_Edge anEdge = TopoDS::Edge(edges(1));
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edges.Remove(1);
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isEdge3d |= !BRep_Tool::Degenerated(anEdge);
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B.Add(aWire,anEdge);
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TopoDS_Vertex V1,V2;
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TopExp::Vertices(anEdge,V1,V2);
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aVertices.Add(V1);
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aVertices.Add(V2);
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Standard_Boolean isNewFound = Standard_False;
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do {
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isNewFound = Standard_False;
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for(Standard_Integer j = 1; j <= edges.Length(); j++) {
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anEdge = TopoDS::Edge(edges(j));
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TopExp::Vertices(anEdge,V1,V2);
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if(aVertices.Contains(V1) || aVertices.Contains(V2)) {
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isEdge3d |= !BRep_Tool::Degenerated(anEdge);
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aVertices.Add(V1);
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aVertices.Add(V2);
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B.Add(aWire,anEdge);
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edges.Remove(j);
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j--;
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isNewFound = Standard_True;
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}
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}
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} while (isNewFound);
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// sorting any type of edges
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aWire = TopoDS::Wire(aContext->Apply(aWire));
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TopoDS_Face tmpF = TopoDS::Face(aContext->Apply(faces(1).Oriented(TopAbs_FORWARD)));
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Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(aWire,tmpF,Precision::Confusion());
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sfw->FixReorder();
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Standard_Boolean isDegRemoved = Standard_False;
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if(!sfw->StatusReorder ( ShapeExtend_FAIL )) {
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// clear degenerated edges if at least one with 3d curve exist
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if(isEdge3d) {
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Handle(ShapeExtend_WireData) sewd = sfw->WireData();
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for(Standard_Integer j = 1; j<=sewd->NbEdges();j++) {
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TopoDS_Edge E = sewd->Edge(j);
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if(BRep_Tool::Degenerated(E)) {
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sewd->Remove(j);
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isDegRemoved = Standard_True;
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j--;
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}
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}
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}
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sfw->FixShifted();
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if(isDegRemoved)
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sfw->FixDegenerated();
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}
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TopoDS_Wire aWireFixed = sfw->Wire();
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aContext->Replace(aWire,aWireFixed);
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// add resulting wire
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if(isEdge3d) {
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B.Add(aResult,aWireFixed);
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}
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else {
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// sorting edges
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Handle(ShapeExtend_WireData) sbwd = sfw->WireData();
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Standard_Integer nbEdges = sbwd->NbEdges();
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// sort degenerated edges and create one edge instead of several ones
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ShapeAnalysis_WireOrder sawo(Standard_False, 0);
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ShapeAnalysis_Edge sae;
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Standard_Integer aLastEdge = nbEdges;
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for(Standard_Integer j = 1; j <= nbEdges; j++) {
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Standard_Real f,l;
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//smh protection on NULL pcurve
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Handle(Geom2d_Curve) c2d;
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if(!sae.PCurve(sbwd->Edge(j),tmpF,c2d,f,l)) {
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aLastEdge--;
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continue;
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}
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sawo.Add(c2d->Value(f).XY(),c2d->Value(l).XY());
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}
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sawo.Perform();
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// constructind one degenerative edge
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gp_XY aStart, anEnd, tmp;
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Standard_Integer nbFirst = sawo.Ordered(1);
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TopoDS_Edge anOrigE = TopoDS::Edge(sbwd->Edge(nbFirst).Oriented(TopAbs_FORWARD));
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ShapeBuild_Edge sbe;
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TopoDS_Vertex aDummyV;
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TopoDS_Edge E = sbe.CopyReplaceVertices(anOrigE,aDummyV,aDummyV);
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sawo.XY(nbFirst,aStart,tmp);
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sawo.XY(sawo.Ordered(aLastEdge),tmp,anEnd);
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gp_XY aVec = anEnd-aStart;
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Handle(Geom2d_Line) aLine = new Geom2d_Line(aStart,gp_Dir2d(anEnd-aStart));
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B.UpdateEdge(E,aLine,tmpF,0.);
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B.Range(E,tmpF,0.,aVec.Modulus());
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Handle(Geom_Curve) C3d;
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B.UpdateEdge(E,C3d,0.);
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B.Degenerated(E,Standard_True);
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TopoDS_Wire aW;
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B.MakeWire(aW);
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B.Add(aW,E);
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B.Add(aResult,aW);
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}
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}
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// perform substitution of face
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aContext->Replace(aContext->Apply(aFace),aResult);
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ShapeFix_Face sff (aResult);
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//Intializing by tolerances
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sff.SetPrecision(myTolerance);
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sff.SetMinTolerance(tol);
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sff.SetMaxTolerance(Max(1.,myTolerance*1000.));
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//Setting modes
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sff.FixOrientationMode() = 0;
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//sff.FixWireMode() = 0;
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sff.SetContext(aContext);
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// Applying the fixes
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sff.Perform();
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if(sff.Status(ShapeExtend_FAIL))
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hasFailed = Standard_True;
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// breaking down to several faces
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TopoDS_Shape theResult = aContext->Apply(aResult);
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for (TopExp_Explorer aFaceExp (theResult,TopAbs_FACE); aFaceExp.More(); aFaceExp.Next()) {
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TopoDS_Face aCurrent = TopoDS::Face(aFaceExp.Current().Oriented(TopAbs_FORWARD));
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Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
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grid->SetValue ( 1, 1, aBaseSurface );
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Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
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ShapeFix_ComposeShell CompShell;
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CompShell.Init ( G, aBaseLocation, aCurrent, ::Precision::Confusion() );//myPrecision
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CompShell.SetContext( aContext );
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TopTools_SequenceOfShape parts;
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ShapeFix_SequenceOfWireSegment wires;
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for(TopExp_Explorer W_Exp(aCurrent,TopAbs_WIRE);W_Exp.More();W_Exp.Next()) {
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Handle(ShapeExtend_WireData) sbwd =
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new ShapeExtend_WireData ( TopoDS::Wire(W_Exp.Current() ));
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ShapeFix_WireSegment seg ( sbwd, TopAbs_REVERSED );
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wires.Append(seg);
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}
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CompShell.DispatchWires ( parts,wires );
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for (Standard_Integer j=1; j <= parts.Length(); j++ ) {
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ShapeFix_Face aFixOrient(TopoDS::Face(parts(j)));
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aFixOrient.SetContext(aContext);
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aFixOrient.FixOrientation();
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}
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TopoDS_Shape CompRes;
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if ( faces.Length() !=1 ) {
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TopoDS_Shell S;
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B.MakeShell ( S );
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for ( i=1; i <= parts.Length(); i++ )
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B.Add ( S, parts(i) );
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CompRes = S;
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}
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else CompRes = parts(1);
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aContext->Replace(aCurrent,CompRes);
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}
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// remove the remaining faces
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for(i = 2; i <= faces.Length(); i++)
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aContext->Remove(faces(i));
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}
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} // end processing each face
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//TopoDS_Shape aResult = Shape;
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if (NbModif > 0 && !hasFailed) {
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TopoDS_Shape aResult = aContext->Apply(aSolid);
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ShapeFix_Edge sfe;
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for (exp.Init(aResult,TopAbs_EDGE); exp.More(); exp.Next()) {
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TopoDS_Edge E = TopoDS::Edge(exp.Current());
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sfe.FixVertexTolerance (E);
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// ptv add fix same parameter
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sfe.FixSameParameter(E, myTolerance);
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}
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myContext->Replace(aSolid, aResult);
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|
}
|
|
//else
|
|
{
|
|
for (exp.Init(aSolid, TopAbs_FACE); exp.More(); exp.Next()) {
|
|
TopoDS_Face aFace = TopoDS::Face(exp.Current().Oriented(TopAbs_FORWARD));
|
|
Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
|
|
sfw->SetContext(myContext);
|
|
sfw->SetPrecision(myTolerance);
|
|
sfw->SetMinTolerance(myTolerance);
|
|
sfw->SetMaxTolerance(Max(1.,myTolerance*1000.));
|
|
sfw->SetFace(aFace);
|
|
for (TopoDS_Iterator iter (aFace,Standard_False); iter.More(); iter.Next()) {
|
|
TopoDS_Wire wire = TopoDS::Wire(iter.Value());
|
|
sfw->Load(wire);
|
|
sfw->FixReorder();
|
|
sfw->FixShifted();
|
|
}
|
|
}
|
|
}
|
|
} // end processing each solid
|
|
|
|
aResShape = myContext->Apply(Shape);
|
|
return aResShape;
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : IsSameDomain
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
bool getCylinder (Handle(Geom_Surface)& theInSurface, gp_Cylinder& theOutCylinder)
|
|
{
|
|
bool isCylinder = false;
|
|
|
|
if (theInSurface->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) {
|
|
Handle(Geom_CylindricalSurface) aGC = Handle(Geom_CylindricalSurface)::DownCast(theInSurface);
|
|
|
|
theOutCylinder = aGC->Cylinder();
|
|
isCylinder = true;
|
|
}
|
|
else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
|
|
Handle(Geom_SurfaceOfRevolution) aRS =
|
|
Handle(Geom_SurfaceOfRevolution)::DownCast(theInSurface);
|
|
Handle(Geom_Curve) aBasis = aRS->BasisCurve();
|
|
if (aBasis->IsKind(STANDARD_TYPE(Geom_Line))) {
|
|
Handle(Geom_Line) aBasisLine = Handle(Geom_Line)::DownCast(aBasis);
|
|
gp_Dir aDir = aRS->Direction();
|
|
gp_Dir aBasisDir = aBasisLine->Position().Direction();
|
|
if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
|
|
// basis line is parallel to the revolution axis: it is a cylinder
|
|
gp_Pnt aLoc = aRS->Location();
|
|
Standard_Real aR = aBasisLine->Lin().Distance(aLoc);
|
|
gp_Ax3 aCylAx (aLoc, aDir);
|
|
|
|
theOutCylinder = gp_Cylinder(aCylAx, aR);
|
|
isCylinder = true;
|
|
}
|
|
}
|
|
}
|
|
else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
|
|
Handle(Geom_SurfaceOfLinearExtrusion) aLES =
|
|
Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(theInSurface);
|
|
Handle(Geom_Curve) aBasis = aLES->BasisCurve();
|
|
if (aBasis->IsKind(STANDARD_TYPE(Geom_Circle))) {
|
|
Handle(Geom_Circle) aBasisCircle = Handle(Geom_Circle)::DownCast(aBasis);
|
|
gp_Dir aDir = aLES->Direction();
|
|
gp_Dir aBasisDir = aBasisCircle->Position().Direction();
|
|
if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
|
|
// basis circle is normal to the extrusion axis: it is a cylinder
|
|
gp_Pnt aLoc = aBasisCircle->Location();
|
|
Standard_Real aR = aBasisCircle->Radius();
|
|
gp_Ax3 aCylAx (aLoc, aDir);
|
|
|
|
theOutCylinder = gp_Cylinder(aCylAx, aR);
|
|
isCylinder = true;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
}
|
|
|
|
return isCylinder;
|
|
}
|
|
|
|
Standard_Boolean BlockFix_UnionFaces::IsSameDomain(const TopoDS_Face& aFace,
|
|
const TopoDS_Face& aCheckedFace) const
|
|
{
|
|
//checking the same handles
|
|
TopLoc_Location L1, L2;
|
|
Handle(Geom_Surface) S1, S2;
|
|
|
|
S1 = BRep_Tool::Surface(aFace,L1);
|
|
S2 = BRep_Tool::Surface(aCheckedFace,L2);
|
|
|
|
if (S1 == S2 && L1 == L2)
|
|
return true;
|
|
|
|
// planar and cylindrical cases (IMP 20052)
|
|
Standard_Real aPrec = Precision::Confusion();
|
|
|
|
S1 = BRep_Tool::Surface(aFace);
|
|
S2 = BRep_Tool::Surface(aCheckedFace);
|
|
|
|
S1 = ClearRts(S1);
|
|
S2 = ClearRts(S2);
|
|
|
|
//Handle(Geom_OffsetSurface) aGOFS1, aGOFS2;
|
|
//aGOFS1 = Handle(Geom_OffsetSurface)::DownCast(S1);
|
|
//aGOFS2 = Handle(Geom_OffsetSurface)::DownCast(S2);
|
|
//if (!aGOFS1.IsNull()) S1 = aGOFS1->BasisSurface();
|
|
//if (!aGOFS2.IsNull()) S2 = aGOFS2->BasisSurface();
|
|
|
|
// case of two elementary surfaces: use OCCT tool
|
|
// elementary surfaces: ConicalSurface, CylindricalSurface,
|
|
// Plane, SphericalSurface and ToroidalSurface
|
|
if (S1->IsKind(STANDARD_TYPE(Geom_ElementarySurface)) &&
|
|
S2->IsKind(STANDARD_TYPE(Geom_ElementarySurface)))
|
|
{
|
|
Handle(GeomAdaptor_HSurface) aGA1 = new GeomAdaptor_HSurface(S1);
|
|
Handle(GeomAdaptor_HSurface) aGA2 = new GeomAdaptor_HSurface(S2);
|
|
|
|
Handle(BRepTopAdaptor_TopolTool) aTT1 = new BRepTopAdaptor_TopolTool();
|
|
Handle(BRepTopAdaptor_TopolTool) aTT2 = new BRepTopAdaptor_TopolTool();
|
|
|
|
try {
|
|
#if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
|
|
OCC_CATCH_SIGNALS;
|
|
#endif
|
|
IntPatch_TheIIIntOfIntersection anIIInt (aGA1, aTT1, aGA2, aTT2, aPrec, aPrec);
|
|
if (!anIIInt.IsDone() || anIIInt.IsEmpty())
|
|
return false;
|
|
|
|
return anIIInt.TangentFaces();
|
|
}
|
|
catch (Standard_Failure) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// case of two planar surfaces:
|
|
// all kinds of surfaces checked, including b-spline and bezier
|
|
GeomLib_IsPlanarSurface aPlanarityChecker1 (S1, aPrec);
|
|
if (aPlanarityChecker1.IsPlanar()) {
|
|
GeomLib_IsPlanarSurface aPlanarityChecker2 (S2, aPrec);
|
|
if (aPlanarityChecker2.IsPlanar()) {
|
|
gp_Pln aPln1 = aPlanarityChecker1.Plan();
|
|
gp_Pln aPln2 = aPlanarityChecker2.Plan();
|
|
|
|
if (aPln1.Position().Direction().IsParallel(aPln2.Position().Direction(), aPrec) &&
|
|
aPln1.Distance(aPln2) < aPrec) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// case of two cylindrical surfaces, at least one of which is a swept surface
|
|
// swept surfaces: SurfaceOfLinearExtrusion, SurfaceOfRevolution
|
|
if ((S1->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
|
|
S1->IsKind(STANDARD_TYPE(Geom_SweptSurface))) &&
|
|
(S2->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
|
|
S2->IsKind(STANDARD_TYPE(Geom_SweptSurface))))
|
|
{
|
|
gp_Cylinder aCyl1, aCyl2;
|
|
if (getCylinder(S1, aCyl1) && getCylinder(S2, aCyl2)) {
|
|
if (fabs(aCyl1.Radius() - aCyl2.Radius()) < aPrec) {
|
|
gp_Dir aDir1 = aCyl1.Position().Direction();
|
|
gp_Dir aDir2 = aCyl2.Position().Direction();
|
|
if (aDir1.IsParallel(aDir2, aPrec)) {
|
|
gp_Pnt aLoc1 = aCyl1.Location();
|
|
gp_Pnt aLoc2 = aCyl2.Location();
|
|
gp_Vec aVec12 (aLoc1, aLoc2);
|
|
if (aVec12.SquareMagnitude() < aPrec*aPrec ||
|
|
aVec12.IsParallel(aDir1, aPrec)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : MovePCurves
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void BlockFix_UnionFaces::MovePCurves(TopoDS_Face& aTarget,
|
|
const TopoDS_Face& aSource) const
|
|
{
|
|
BRep_Builder B;
|
|
for(TopExp_Explorer wexp(aSource,TopAbs_WIRE);wexp.More();wexp.Next()) {
|
|
Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(TopoDS::Wire(wexp.Current()),
|
|
aTarget, Precision::Confusion());
|
|
sfw->FixReorder();
|
|
Standard_Boolean isReoredFailed = sfw->StatusReorder ( ShapeExtend_FAIL );
|
|
sfw->FixEdgeCurves();
|
|
if(isReoredFailed)
|
|
continue;
|
|
|
|
sfw->FixShifted();
|
|
sfw->FixDegenerated();
|
|
|
|
// remove degenerated edges from not degenerated points
|
|
ShapeAnalysis_Edge sae;
|
|
Handle(ShapeExtend_WireData) sewd = sfw->WireData();
|
|
for(Standard_Integer i = 1; i<=sewd->NbEdges();i++) {
|
|
TopoDS_Edge E = sewd->Edge(i);
|
|
if(BRep_Tool::Degenerated(E)&&!sae.HasPCurve(E,aTarget)) {
|
|
sewd->Remove(i);
|
|
i--;
|
|
}
|
|
}
|
|
|
|
TopoDS_Wire ResWire = sfw->Wire();
|
|
B.Add(aTarget,ResWire);
|
|
}
|
|
}
|