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13c0e40223
Provide possibility to perform Boolean operations on open solids. Implementation of the new method *BOPAlgo_Builder::BuildBOP* performing the construction of the result shape for the given type of Boolean operation. This approach does not rely on the splits of solid to be correct and looks for the faces with necessary state relatively opposite solids to build the result solid. The call to this method is performed from BOP algorithm in case there were open solids in the arguments. Implementation of the draw command *buildbop* performing a call to the method above.
2288 lines
66 KiB
C++
2288 lines
66 KiB
C++
// Created by: Peter KURNEV
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// Copyright (c) 2010-2014 OPEN CASCADE SAS
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// Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
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// Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT,
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// EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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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 <BOPTools_AlgoTools.hxx>
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#include <BOPAlgo_Alerts.hxx>
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#include <BOPTools_AlgoTools2D.hxx>
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#include <BOPTools_AlgoTools3D.hxx>
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#include <BOPTools_CoupleOfShape.hxx>
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#include <BOPTools_ListOfCoupleOfShape.hxx>
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#include <BRep_Builder.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepAdaptor_Curve2d.hxx>
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#include <BRepAdaptor_Surface.hxx>
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#include <BRepClass3d_SolidClassifier.hxx>
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#include <BRepLib.hxx>
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#include <Geom2d_Curve.hxx>
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#include <Geom2dInt_Geom2dCurveTool.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_Plane.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <GeomAPI_ProjectPointOnSurf.hxx>
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#include <gp_Cone.hxx>
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#include <gp_Cylinder.hxx>
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#include <gp_Lin.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Sphere.hxx>
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#include <gp_Torus.hxx>
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#include <gp_XYZ.hxx>
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#include <IntTools_Context.hxx>
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#include <IntTools_Curve.hxx>
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#include <IntTools_Range.hxx>
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#include <IntTools_ShrunkRange.hxx>
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#include <IntTools_Tools.hxx>
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#include <Precision.hxx>
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#include <TopAbs_Orientation.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_Compound.hxx>
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#include <TopoDS_CompSolid.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_Shell.hxx>
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#include <TopoDS_Solid.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopTools_IndexedMapOfShape.hxx>
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#include <TopTools_MapOfShape.hxx>
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#include <TopTools_MapOfOrientedShape.hxx>
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#include <Message_Report.hxx>
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#include <NCollection_Array1.hxx>
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#include <algorithm>
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//
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static
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Standard_Real AngleWithRef(const gp_Dir& theD1,
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const gp_Dir& theD2,
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const gp_Dir& theDRef);
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static
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Standard_Boolean FindFacePairs (const TopoDS_Edge& theE,
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const TopTools_ListOfShape& thLF,
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BOPTools_ListOfCoupleOfShape& theLCFF,
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const Handle(IntTools_Context)& theContext);
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static
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TopAbs_Orientation Orientation(const TopoDS_Edge& anE,
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const TopoDS_Face& aF);
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static
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Standard_Boolean GetFaceDir(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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const gp_Pnt& aP,
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const Standard_Real aT,
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const gp_Dir& aDTgt,
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const Standard_Boolean theSmallFaces,
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gp_Dir& aDN,
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gp_Dir& aDB,
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const Handle(IntTools_Context)& theContext,
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GeomAPI_ProjectPointOnSurf& aProjPL,
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const Standard_Real aDt);
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static
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Standard_Boolean FindPointInFace(const TopoDS_Face& aF,
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const gp_Pnt& aP,
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gp_Dir& aDB,
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gp_Pnt& aPOut,
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const Handle(IntTools_Context)& theContext,
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GeomAPI_ProjectPointOnSurf& aProjPL,
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const Standard_Real aDt,
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const Standard_Real aTolE);
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static
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Standard_Real MinStep3D(const TopoDS_Edge& theE1,
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const TopoDS_Face& theF1,
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const BOPTools_ListOfCoupleOfShape& theLCS,
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const gp_Pnt& aP,
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const Handle(IntTools_Context)& theContext,
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Standard_Boolean& theSmallFaces);
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//=======================================================================
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// function: MakeConnexityBlocks
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// purpose:
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//=======================================================================
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void BOPTools_AlgoTools::MakeConnexityBlocks
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(const TopoDS_Shape& theS,
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const TopAbs_ShapeEnum theConnectionType,
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const TopAbs_ShapeEnum theElementType,
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TopTools_ListOfListOfShape& theLCB,
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TopTools_IndexedDataMapOfShapeListOfShape& theConnectionMap)
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{
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// Map shapes to find connected elements
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TopExp::MapShapesAndAncestors(theS, theConnectionType, theElementType, theConnectionMap);
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// Fence map
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TopTools_MapOfShape aMFence;
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TopExp_Explorer aExp(theS, theElementType);
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for (; aExp.More(); aExp.Next())
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{
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const TopoDS_Shape& aS = aExp.Current();
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if (!aMFence.Add(aS)) {
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continue;
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}
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// The block
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TopTools_ListOfShape aLBlock;
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// Start the block
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aLBlock.Append(aS);
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// Look for connected parts
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TopTools_ListIteratorOfListOfShape aItB(aLBlock);
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for (; aItB.More(); aItB.Next())
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{
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const TopoDS_Shape& aS1 = aItB.Value();
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TopExp_Explorer aExpSS(aS1, theConnectionType);
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for (; aExpSS.More(); aExpSS.Next())
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{
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const TopoDS_Shape& aSubS = aExpSS.Current();
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const TopTools_ListOfShape& aLS = theConnectionMap.FindFromKey(aSubS);
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TopTools_ListIteratorOfListOfShape aItLS(aLS);
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for (; aItLS.More(); aItLS.Next())
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{
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const TopoDS_Shape& aS2 = aItLS.Value();
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if (aMFence.Add(aS2))
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aLBlock.Append(aS2);
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}
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}
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}
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// Add the block into result
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theLCB.Append(aLBlock);
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}
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}
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//=======================================================================
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// function: MakeConnexityBlocks
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// purpose:
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//=======================================================================
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void BOPTools_AlgoTools::MakeConnexityBlocks
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(const TopoDS_Shape& theS,
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const TopAbs_ShapeEnum theConnectionType,
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const TopAbs_ShapeEnum theElementType,
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TopTools_ListOfShape& theLCB)
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{
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TopTools_ListOfListOfShape aLBlocks;
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TopTools_IndexedDataMapOfShapeListOfShape aCMap;
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BOPTools_AlgoTools::MakeConnexityBlocks(theS, theConnectionType, theElementType, aLBlocks, aCMap);
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// Make compound from each block
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TopTools_ListIteratorOfListOfListOfShape aItB(aLBlocks);
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for (; aItB.More(); aItB.Next())
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{
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const TopTools_ListOfShape& aLB = aItB.Value();
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TopoDS_Compound aBlock;
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BRep_Builder().MakeCompound(aBlock);
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for (TopTools_ListIteratorOfListOfShape it(aLB); it.More(); it.Next())
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BRep_Builder().Add(aBlock, it.Value());
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theLCB.Append(aBlock);
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}
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}
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//=======================================================================
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// function: MakeConnexityBlocks
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// purpose:
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//=======================================================================
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void BOPTools_AlgoTools::MakeConnexityBlocks
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(const TopTools_ListOfShape& theLS,
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const TopAbs_ShapeEnum theConnectionType,
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const TopAbs_ShapeEnum theElementType,
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BOPTools_ListOfConnexityBlock& theLCB)
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{
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BRep_Builder aBB;
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// Make connexity blocks from start elements
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TopoDS_Compound aCStart;
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aBB.MakeCompound(aCStart);
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TopTools_MapOfShape aMFence, aMNRegular;
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TopTools_ListIteratorOfListOfShape aItL(theLS);
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for (; aItL.More(); aItL.Next())
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{
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const TopoDS_Shape& aS = aItL.Value();
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if (aMFence.Add(aS))
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aBB.Add(aCStart, aS);
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else
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aMNRegular.Add(aS);
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}
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TopTools_ListOfListOfShape aLCB;
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TopTools_IndexedDataMapOfShapeListOfShape aCMap;
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BOPTools_AlgoTools::MakeConnexityBlocks(aCStart, theConnectionType, theElementType, aLCB, aCMap);
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// Save the blocks and check their regularity
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TopTools_ListIteratorOfListOfListOfShape aItB(aLCB);
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for (; aItB.More(); aItB.Next())
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{
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const TopTools_ListOfShape& aBlock = aItB.Value();
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BOPTools_ConnexityBlock aCB;
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TopTools_ListOfShape& aLCS = aCB.ChangeShapes();
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Standard_Boolean bRegular = Standard_True;
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for (TopTools_ListIteratorOfListOfShape it(aBlock); it.More(); it.Next())
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{
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TopoDS_Shape aS = it.Value();
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if (aMNRegular.Contains(aS))
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{
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bRegular = Standard_False;
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aS.Orientation(TopAbs_FORWARD);
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aLCS.Append(aS);
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aS.Orientation(TopAbs_REVERSED);
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aLCS.Append(aS);
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}
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else
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{
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aLCS.Append(aS);
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if (bRegular)
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{
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// Check if there are no multi-connected shapes
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for (TopExp_Explorer ex(aS, theConnectionType); ex.More() && bRegular; ex.Next())
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bRegular = (aCMap.FindFromKey(ex.Current()).Extent() == 2);
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}
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}
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}
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aCB.SetRegular(bRegular);
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theLCB.Append(aCB);
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}
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}
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//=======================================================================
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// function: OrientEdgesOnWire
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// purpose: Reorient edges on wire for correct ordering
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//=======================================================================
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void BOPTools_AlgoTools::OrientEdgesOnWire(TopoDS_Shape& theWire)
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{
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// make vertex-edges connexity map
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TopTools_IndexedDataMapOfShapeListOfShape aVEMap;
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TopExp::MapShapesAndAncestors(theWire, TopAbs_VERTEX, TopAbs_EDGE, aVEMap);
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//
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if (aVEMap.IsEmpty()) {
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return;
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}
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//
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BRep_Builder aBB;
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// new wire
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TopoDS_Wire aWire;
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aBB.MakeWire(aWire);
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// fence map
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TopTools_MapOfOrientedShape aMFence;
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//
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TopoDS_Iterator aIt(theWire);
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for (; aIt.More(); aIt.Next()) {
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const TopoDS_Edge& aEC = TopoDS::Edge(aIt.Value());
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if (!aMFence.Add(aEC)) {
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continue;
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}
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//
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// add edge to a wire as it is
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aBB.Add(aWire, aEC);
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//
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TopoDS_Vertex aV1, aV2;
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TopExp::Vertices(aEC, aV1, aV2, Standard_True);
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//
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if (aV1.IsSame(aV2)) {
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// closed edge, go to the next edge
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continue;
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}
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//
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// orient the adjacent edges
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for (Standard_Integer i = 0; i < 2; ++i) {
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TopoDS_Shape aVC = !i ? aV1 : aV2;
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//
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for (;;) {
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const TopTools_ListOfShape& aLE = aVEMap.FindFromKey(aVC);
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if (aLE.Extent() != 2) {
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// free vertex or multi-connexity, go to the next edge
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break;
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}
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//
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Standard_Boolean bStop = Standard_True;
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//
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TopTools_ListIteratorOfListOfShape aItLE(aLE);
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for (; aItLE.More(); aItLE.Next()) {
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const TopoDS_Edge& aEN = TopoDS::Edge(aItLE.Value());
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if (aMFence.Contains(aEN)) {
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continue;
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}
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//
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TopoDS_Vertex aVN1, aVN2;
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TopExp::Vertices(aEN, aVN1, aVN2, Standard_True);
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if (aVN1.IsSame(aVN2)) {
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// closed edge, go to the next edge
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break;
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}
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//
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// change orientation if necessary and go to the next edges
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if ((!i && aVC.IsSame(aVN2)) || (i && aVC.IsSame(aVN1))) {
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aBB.Add(aWire, aEN);
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}
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else {
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aBB.Add(aWire, aEN.Reversed());
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}
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aMFence.Add(aEN);
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aVC = aVC.IsSame(aVN1) ? aVN2 : aVN1;
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bStop = Standard_False;
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break;
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}
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//
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if (bStop) {
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break;
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}
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}
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}
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}
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//
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theWire = aWire;
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}
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//=======================================================================
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// function: OrientFacesOnShell
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// purpose:
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//=======================================================================
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void BOPTools_AlgoTools::OrientFacesOnShell (TopoDS_Shape& aShell)
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{
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Standard_Boolean bIsProcessed1, bIsProcessed2;
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Standard_Integer i, aNbE, aNbF, j;
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TopAbs_Orientation anOrE1, anOrE2;
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TopoDS_Face aF1x, aF2x;
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TopoDS_Shape aShellNew;
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TopTools_IndexedDataMapOfShapeListOfShape aEFMap;
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TopTools_IndexedMapOfShape aProcessedFaces;
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BRep_Builder aBB;
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//
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BOPTools_AlgoTools::MakeContainer(TopAbs_SHELL, aShellNew);
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//
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TopExp::MapShapesAndAncestors(aShell,
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TopAbs_EDGE, TopAbs_FACE,
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aEFMap);
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aNbE=aEFMap.Extent();
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//
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// One seam edge in aEFMap contains 2 equivalent faces.
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for (i=1; i<=aNbE; ++i) {
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TopTools_ListOfShape& aLF=aEFMap.ChangeFromIndex(i);
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aNbF=aLF.Extent();
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if (aNbF>1) {
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TopTools_ListOfShape aLFTmp;
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TopTools_IndexedMapOfShape aFM;
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//
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TopTools_ListIteratorOfListOfShape anIt(aLF);
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for (; anIt.More(); anIt.Next()) {
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const TopoDS_Shape& aF=anIt.Value();
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if (!aFM.Contains(aF)) {
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aFM.Add(aF);
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aLFTmp.Append(aF);
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}
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}
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aLF.Clear();
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aLF=aLFTmp;
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}
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}
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//
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// Do
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for (i=1; i<=aNbE; ++i) {
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const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aEFMap.FindKey(i)));
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if (BRep_Tool::Degenerated(aE)) {
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continue;
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}
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//
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const TopTools_ListOfShape& aLF=aEFMap.FindFromIndex(i);
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aNbF=aLF.Extent();
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if (aNbF!=2) {
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continue;
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}
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//
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TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
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TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last()));
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//
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bIsProcessed1=aProcessedFaces.Contains(aF1);
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bIsProcessed2=aProcessedFaces.Contains(aF2);
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if (bIsProcessed1 && bIsProcessed2) {
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continue;
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}
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if (!bIsProcessed1 && !bIsProcessed2) {
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aProcessedFaces.Add(aF1);
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aBB.Add(aShellNew, aF1);
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bIsProcessed1=!bIsProcessed1;
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}
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//
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aF1x=aF1;
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if (bIsProcessed1) {
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j=aProcessedFaces.FindIndex(aF1);
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aF1x=(*(TopoDS_Face*)(&aProcessedFaces.FindKey(j)));
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}
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//
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aF2x=aF2;
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if (bIsProcessed2) {
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j=aProcessedFaces.FindIndex(aF2);
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aF2x=(*(TopoDS_Face*)(&aProcessedFaces.FindKey(j)));
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}
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//
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anOrE1=Orientation(aE, aF1x);
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anOrE2=Orientation(aE, aF2x);
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//
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if (bIsProcessed1 && !bIsProcessed2) {
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if (anOrE1==anOrE2) {
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if (!BRep_Tool::IsClosed(aE, aF1) &&
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!BRep_Tool::IsClosed(aE, aF2)) {
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aF2.Reverse();
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}
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}
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aProcessedFaces.Add(aF2);
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aBB.Add(aShellNew, aF2);
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}
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else if (!bIsProcessed1 && bIsProcessed2) {
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if (anOrE1==anOrE2) {
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if (!BRep_Tool::IsClosed(aE, aF1) &&
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!BRep_Tool::IsClosed(aE, aF2)) {
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aF1.Reverse();
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}
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}
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aProcessedFaces.Add(aF1);
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aBB.Add(aShellNew, aF1);
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}
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}
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//
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//
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for (i=1; i<=aNbE; ++i) {
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const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aEFMap.FindKey(i)));
|
|
if (BRep_Tool::Degenerated(aE)) {
|
|
continue;
|
|
}
|
|
//
|
|
const TopTools_ListOfShape& aLF=aEFMap.FindFromIndex(i);
|
|
aNbF=aLF.Extent();
|
|
if (aNbF!=2) {
|
|
TopTools_ListIteratorOfListOfShape anIt(aLF);
|
|
for(; anIt.More(); anIt.Next()) {
|
|
const TopoDS_Face& aF=(*(TopoDS_Face*)(&anIt.Value()));
|
|
if (!aProcessedFaces.Contains(aF)) {
|
|
aProcessedFaces.Add(aF);
|
|
aBB.Add(aShellNew, aF);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
aShell=aShellNew;
|
|
}
|
|
//=======================================================================
|
|
//function : Orientation
|
|
//purpose :
|
|
//=======================================================================
|
|
TopAbs_Orientation Orientation(const TopoDS_Edge& anE,
|
|
const TopoDS_Face& aF)
|
|
{
|
|
TopAbs_Orientation anOr=TopAbs_INTERNAL;
|
|
|
|
TopExp_Explorer anExp;
|
|
anExp.Init(aF, TopAbs_EDGE);
|
|
for (; anExp.More(); anExp.Next()) {
|
|
const TopoDS_Edge& anEF1=(*(TopoDS_Edge*)(&anExp.Current()));
|
|
if (anEF1.IsSame(anE)) {
|
|
anOr=anEF1.Orientation();
|
|
break;
|
|
}
|
|
}
|
|
return anOr;
|
|
}
|
|
//=======================================================================
|
|
// function: MakeConnexityBlock.
|
|
// purpose:
|
|
//=======================================================================
|
|
void BOPTools_AlgoTools::MakeConnexityBlock
|
|
(TopTools_ListOfShape& theLFIn,
|
|
TopTools_IndexedMapOfShape& theMEAvoid,
|
|
TopTools_ListOfShape& theLCB,
|
|
const Handle(NCollection_BaseAllocator)& theAllocator)
|
|
{
|
|
Standard_Integer aNbF, aNbAdd1, aNbAdd, i;
|
|
TopExp_Explorer aExp;
|
|
TopTools_ListIteratorOfListOfShape aIt;
|
|
//
|
|
TopTools_IndexedMapOfShape aMCB(100, theAllocator);
|
|
TopTools_IndexedMapOfShape aMAdd(100, theAllocator);
|
|
TopTools_IndexedMapOfShape aMAdd1(100, theAllocator);
|
|
TopTools_IndexedDataMapOfShapeListOfShape aMEF(100, theAllocator);
|
|
//
|
|
// 1. aMEF
|
|
aNbF=theLFIn.Extent();
|
|
aIt.Initialize(theLFIn);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aF=aIt.Value();
|
|
TopExp::MapShapesAndAncestors(aF, TopAbs_EDGE, TopAbs_FACE, aMEF);
|
|
}
|
|
//
|
|
// 2. aMCB
|
|
const TopoDS_Shape& aF1=theLFIn.First();
|
|
aMAdd.Add(aF1);
|
|
//
|
|
for(;;) {
|
|
aMAdd1.Clear();
|
|
aNbAdd = aMAdd.Extent();
|
|
for (i=1; i<=aNbAdd; ++i) {
|
|
const TopoDS_Shape& aF=aMAdd(i);
|
|
//
|
|
//aMAdd1.Clear();
|
|
aExp.Init(aF, TopAbs_EDGE);
|
|
for (; aExp.More(); aExp.Next()) {
|
|
const TopoDS_Shape& aE=aExp.Current();
|
|
if (theMEAvoid.Contains(aE)){
|
|
continue;
|
|
}
|
|
//
|
|
const TopTools_ListOfShape& aLF=aMEF.FindFromKey(aE);
|
|
aIt.Initialize(aLF);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const TopoDS_Shape& aFx=aIt.Value();
|
|
if (aFx.IsSame(aF)) {
|
|
continue;
|
|
}
|
|
if (aMCB.Contains(aFx)) {
|
|
continue;
|
|
}
|
|
aMAdd1.Add(aFx);
|
|
}
|
|
}//for (; aExp.More(); aExp.Next()){
|
|
aMCB.Add(aF);
|
|
}// for (i=1; i<=aNbAdd; ++i) {
|
|
//
|
|
aNbAdd1=aMAdd1.Extent();
|
|
if (!aNbAdd1) {
|
|
break;
|
|
}
|
|
//
|
|
aMAdd.Clear();
|
|
for (i=1; i<=aNbAdd1; ++i) {
|
|
const TopoDS_Shape& aFAdd=aMAdd1(i);
|
|
aMAdd.Add(aFAdd);
|
|
}
|
|
//
|
|
}//while(1) {
|
|
|
|
//
|
|
aNbF=aMCB.Extent();
|
|
for (i=1; i<=aNbF; ++i) {
|
|
const TopoDS_Shape& aF=aMCB(i);
|
|
theLCB.Append(aF);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
// function: ComputeStateByOnePoint
|
|
// purpose:
|
|
//=======================================================================
|
|
TopAbs_State BOPTools_AlgoTools::ComputeStateByOnePoint
|
|
(const TopoDS_Shape& theS,
|
|
const TopoDS_Solid& theRef,
|
|
const Standard_Real theTol,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
TopAbs_State aState = TopAbs_UNKNOWN;
|
|
TopAbs_ShapeEnum aType = theS.ShapeType();
|
|
|
|
switch (aType)
|
|
{
|
|
case TopAbs_VERTEX:
|
|
aState = ComputeState(TopoDS::Vertex(theS), theRef, theTol, theContext);
|
|
break;
|
|
case TopAbs_EDGE:
|
|
aState = ComputeState(TopoDS::Edge(theS), theRef, theTol, theContext);
|
|
break;
|
|
case TopAbs_FACE:
|
|
{
|
|
TopTools_IndexedMapOfShape aBounds;
|
|
TopExp::MapShapes(theRef, TopAbs_EDGE, aBounds);
|
|
aState = ComputeState(TopoDS::Face(theS), theRef, theTol, aBounds, theContext);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
TopoDS_Iterator it(theS);
|
|
if (it.More())
|
|
ComputeStateByOnePoint(it.Value(), theRef, theTol, theContext);
|
|
break;
|
|
}
|
|
}
|
|
return aState;
|
|
}
|
|
|
|
//=======================================================================
|
|
// function: ComputeState
|
|
// purpose:
|
|
//=======================================================================
|
|
TopAbs_State BOPTools_AlgoTools::ComputeState
|
|
(const TopoDS_Face& theF,
|
|
const TopoDS_Solid& theRef,
|
|
const Standard_Real theTol,
|
|
const TopTools_IndexedMapOfShape& theBounds,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
TopAbs_State aState = TopAbs_UNKNOWN;
|
|
|
|
// Try to find the edge on the face which does not
|
|
// belong to the solid and classify the middle point of that
|
|
// edge relatively solid.
|
|
TopExp_Explorer aExp(theF, TopAbs_EDGE);
|
|
for (; aExp.More(); aExp.Next())
|
|
{
|
|
const TopoDS_Edge& aSE = (*(TopoDS_Edge*)(&aExp.Current()));
|
|
if (BRep_Tool::Degenerated(aSE))
|
|
continue;
|
|
|
|
if (!theBounds.Contains(aSE))
|
|
{
|
|
aState = BOPTools_AlgoTools::ComputeState(aSE, theRef, theTol, theContext);
|
|
return aState;
|
|
}
|
|
}
|
|
|
|
// All edges of the face are on the solid.
|
|
// Get point inside the face and classify it relatively solid.
|
|
gp_Pnt aP3D;
|
|
gp_Pnt2d aP2D;
|
|
Standard_Integer iErr = BOPTools_AlgoTools3D::PointInFace(theF, aP3D, aP2D, theContext);
|
|
if (iErr != 0)
|
|
{
|
|
// Hatcher fails to find the point -> get point near some edge
|
|
aExp.Init(theF, TopAbs_EDGE);
|
|
for (; aExp.More() && iErr != 0; aExp.Next())
|
|
{
|
|
const TopoDS_Edge& aSE = TopoDS::Edge(aExp.Current());
|
|
if (BRep_Tool::Degenerated(aSE))
|
|
continue;
|
|
|
|
iErr = BOPTools_AlgoTools3D::PointNearEdge(aSE, theF, aP2D, aP3D, theContext);
|
|
}
|
|
}
|
|
|
|
if (iErr == 0)
|
|
aState = BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext);
|
|
|
|
return aState;
|
|
}
|
|
//=======================================================================
|
|
// function: ComputeState
|
|
// purpose:
|
|
//=======================================================================
|
|
TopAbs_State BOPTools_AlgoTools::ComputeState
|
|
(const TopoDS_Vertex& theV,
|
|
const TopoDS_Solid& theRef,
|
|
const Standard_Real theTol,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
TopAbs_State aState;
|
|
gp_Pnt aP3D;
|
|
//
|
|
aP3D=BRep_Tool::Pnt(theV);
|
|
aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol,
|
|
theContext);
|
|
return aState;
|
|
}
|
|
//=======================================================================
|
|
// function: ComputeState
|
|
// purpose:
|
|
//=======================================================================
|
|
TopAbs_State BOPTools_AlgoTools::ComputeState
|
|
(const TopoDS_Edge& theE,
|
|
const TopoDS_Solid& theRef,
|
|
const Standard_Real theTol,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Real aT1, aT2, aT = 0.;
|
|
TopAbs_State aState;
|
|
Handle(Geom_Curve) aC3D;
|
|
gp_Pnt aP3D;
|
|
//
|
|
aC3D = BRep_Tool::Curve(theE, aT1, aT2);
|
|
//
|
|
if(aC3D.IsNull()) {
|
|
//it means that we are in degenerated edge
|
|
const TopoDS_Vertex& aV = TopExp::FirstVertex(theE);
|
|
if(aV.IsNull()){
|
|
return TopAbs_UNKNOWN;
|
|
}
|
|
aP3D=BRep_Tool::Pnt(aV);
|
|
}
|
|
else {//usual case
|
|
Standard_Boolean bF2Inf, bL2Inf;
|
|
Standard_Real dT=10.;
|
|
//
|
|
bF2Inf = Precision::IsNegativeInfinite(aT1);
|
|
bL2Inf = Precision::IsPositiveInfinite(aT2);
|
|
//
|
|
if (bF2Inf && !bL2Inf) {
|
|
aT=aT2-dT;
|
|
}
|
|
else if (!bF2Inf && bL2Inf) {
|
|
aT=aT1+dT;
|
|
}
|
|
else if (bF2Inf && bL2Inf) {
|
|
aT=0.;
|
|
}
|
|
else {
|
|
aT=IntTools_Tools::IntermediatePoint(aT1, aT2);
|
|
}
|
|
aC3D->D0(aT, aP3D);
|
|
}
|
|
//
|
|
aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol,
|
|
theContext);
|
|
//
|
|
return aState;
|
|
}
|
|
//=======================================================================
|
|
// function: ComputeState
|
|
// purpose:
|
|
//=======================================================================
|
|
TopAbs_State BOPTools_AlgoTools::ComputeState
|
|
(const gp_Pnt& theP,
|
|
const TopoDS_Solid& theRef,
|
|
const Standard_Real theTol,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
TopAbs_State aState;
|
|
//
|
|
BRepClass3d_SolidClassifier& aSC=theContext->SolidClassifier(theRef);
|
|
aSC.Perform(theP, theTol);
|
|
//
|
|
aState=aSC.State();
|
|
//
|
|
return aState;
|
|
}
|
|
//=======================================================================
|
|
//function : IsInternalFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsInternalFace
|
|
(const TopoDS_Face& theFace,
|
|
const TopoDS_Solid& theSolid,
|
|
TopTools_IndexedDataMapOfShapeListOfShape& theMEF,
|
|
const Standard_Real theTol,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Boolean bDegenerated;
|
|
TopAbs_Orientation aOr;
|
|
TopoDS_Edge aE1;
|
|
TopExp_Explorer aExp;
|
|
TopTools_ListIteratorOfListOfShape aItF;
|
|
//
|
|
// For all invoked functions: [::IsInternalFace(...)]
|
|
// the returned value iRet means:
|
|
// iRet=0; - state is not IN
|
|
// iRet=1; - state is IN
|
|
// iRet=2; - state can not be found by the method of angles
|
|
Standard_Integer iRet = 0;
|
|
// 1 Try to find an edge from theFace in theMEF
|
|
aExp.Init(theFace, TopAbs_EDGE);
|
|
for(; aExp.More(); aExp.Next()) {
|
|
const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aExp.Current()));
|
|
if (!theMEF.Contains(aE)) {
|
|
continue;
|
|
}
|
|
//
|
|
aOr=aE.Orientation();
|
|
if (aOr==TopAbs_INTERNAL) {
|
|
continue;
|
|
}
|
|
bDegenerated=BRep_Tool::Degenerated(aE);
|
|
if (bDegenerated){
|
|
continue;
|
|
}
|
|
// aE
|
|
TopTools_ListOfShape& aLF=theMEF.ChangeFromKey(aE);
|
|
Standard_Integer aNbF = aLF.Extent();
|
|
if (aNbF==1) {
|
|
// aE is internal edge on aLF.First()
|
|
const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
|
|
BOPTools_AlgoTools::GetEdgeOnFace(aE, aF1, aE1);
|
|
if (aE1.Orientation() != TopAbs_INTERNAL) {
|
|
continue;
|
|
}
|
|
//
|
|
iRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aF1, aF1,
|
|
theContext);
|
|
break;
|
|
}
|
|
//
|
|
else if (aNbF==2) {
|
|
const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
|
|
const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last()));
|
|
iRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aF1, aF2,
|
|
theContext);
|
|
break;
|
|
}
|
|
}//for(; aExp.More(); aExp.Next()) {
|
|
//
|
|
if (aExp.More() && iRet != 2)
|
|
{
|
|
return iRet == 1;
|
|
}
|
|
//
|
|
//========================================
|
|
// 2. Classify face using classifier
|
|
//
|
|
TopAbs_State aState;
|
|
TopTools_IndexedMapOfShape aBounds;
|
|
//
|
|
TopExp::MapShapes(theSolid, TopAbs_EDGE, aBounds);
|
|
//
|
|
aState=BOPTools_AlgoTools::ComputeState(theFace, theSolid,
|
|
theTol, aBounds, theContext);
|
|
return aState == TopAbs_IN;
|
|
}
|
|
//=======================================================================
|
|
//function : IsInternalFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools::IsInternalFace
|
|
(const TopoDS_Face& theFace,
|
|
const TopoDS_Edge& theEdge,
|
|
TopTools_ListOfShape& theLF,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Integer aNbF, iRet;
|
|
//
|
|
iRet=0;
|
|
//
|
|
aNbF=theLF.Extent();
|
|
if (aNbF==2) {
|
|
const TopoDS_Face& aF1=(*(TopoDS_Face*)(&theLF.First()));
|
|
const TopoDS_Face& aF2=(*(TopoDS_Face*)(&theLF.Last()));
|
|
iRet=BOPTools_AlgoTools::IsInternalFace(theFace, theEdge, aF1, aF2,
|
|
theContext);
|
|
return iRet;
|
|
}
|
|
//
|
|
else {
|
|
BOPTools_ListOfCoupleOfShape aLCFF;
|
|
BOPTools_ListIteratorOfListOfCoupleOfShape aIt;
|
|
//
|
|
FindFacePairs(theEdge, theLF, aLCFF, theContext);
|
|
//
|
|
aIt.Initialize(aLCFF);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
BOPTools_CoupleOfShape& aCSFF=aIt.ChangeValue();
|
|
//
|
|
const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aCSFF.Shape1()));
|
|
const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aCSFF.Shape2()));
|
|
iRet=BOPTools_AlgoTools::IsInternalFace(theFace, theEdge, aF1, aF2,
|
|
theContext);
|
|
if (iRet) {
|
|
return iRet;
|
|
}
|
|
}
|
|
}
|
|
return iRet;
|
|
}
|
|
//=======================================================================
|
|
//function : IsInternalFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools::IsInternalFace
|
|
(const TopoDS_Face& theFace,
|
|
const TopoDS_Edge& theEdge,
|
|
const TopoDS_Face& theFace1,
|
|
const TopoDS_Face& theFace2,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Boolean bRet;
|
|
Standard_Integer iRet;
|
|
TopoDS_Edge aE1, aE2;
|
|
TopoDS_Face aFOff;
|
|
BOPTools_ListOfCoupleOfShape theLCSOff;
|
|
BOPTools_CoupleOfShape aCS1, aCS2;
|
|
//
|
|
BOPTools_AlgoTools::GetEdgeOnFace(theEdge, theFace1, aE1);
|
|
if (aE1.Orientation()==TopAbs_INTERNAL) {
|
|
aE2=aE1;
|
|
aE1.Orientation(TopAbs_FORWARD);
|
|
aE2.Orientation(TopAbs_REVERSED);
|
|
}
|
|
else if (theFace1==theFace2) {
|
|
aE2=aE1;
|
|
aE1.Orientation(TopAbs_FORWARD);
|
|
aE2.Orientation(TopAbs_REVERSED);
|
|
}
|
|
else {
|
|
BOPTools_AlgoTools::GetEdgeOnFace(theEdge, theFace2, aE2);
|
|
}
|
|
//
|
|
aCS1.SetShape1(theEdge);
|
|
aCS1.SetShape2(theFace);
|
|
theLCSOff.Append(aCS1);
|
|
//
|
|
aCS2.SetShape1(aE2);
|
|
aCS2.SetShape2(theFace2);
|
|
theLCSOff.Append(aCS2);
|
|
//
|
|
bRet=GetFaceOff(aE1, theFace1, theLCSOff, aFOff, theContext);
|
|
//
|
|
iRet=0; // theFace is not internal
|
|
if (theFace.IsEqual(aFOff)) {
|
|
// theFace is internal
|
|
iRet=1;
|
|
if (!bRet) {
|
|
// theFace seems to be internal
|
|
iRet=2;
|
|
}
|
|
}
|
|
return iRet;
|
|
}
|
|
//=======================================================================
|
|
//function : GetFaceOff
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::GetFaceOff
|
|
(const TopoDS_Edge& theE1,
|
|
const TopoDS_Face& theF1,
|
|
BOPTools_ListOfCoupleOfShape& theLCSOff,
|
|
TopoDS_Face& theFOff,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Boolean bRet, bIsComputed;
|
|
Standard_Real aT, aT1, aT2, aAngle, aTwoPI, aAngleMin, aDt3D;
|
|
Standard_Real aUmin, aUsup, aVmin, aVsup, aPA;
|
|
gp_Pnt aPn1, aPn2, aPx;
|
|
gp_Dir aDN1, aDN2, aDBF, aDBF2, aDTF;
|
|
gp_Vec aVTgt;
|
|
TopAbs_Orientation aOr;
|
|
Handle(Geom_Curve)aC3D;
|
|
Handle(Geom_Plane) aPL;
|
|
BOPTools_ListIteratorOfListOfCoupleOfShape aIt;
|
|
GeomAPI_ProjectPointOnSurf aProjPL;
|
|
//
|
|
aPA=Precision::Angular();
|
|
aAngleMin=100.;
|
|
aTwoPI=M_PI+M_PI;
|
|
aC3D =BRep_Tool::Curve(theE1, aT1, aT2);
|
|
aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2);
|
|
aC3D->D0(aT, aPx);
|
|
//
|
|
BOPTools_AlgoTools2D::EdgeTangent(theE1, aT, aVTgt);
|
|
gp_Dir aDTgt(aVTgt), aDTgt2;
|
|
aOr = theE1.Orientation();
|
|
//
|
|
aPL = new Geom_Plane(aPx, aDTgt);
|
|
aPL->Bounds(aUmin, aUsup, aVmin, aVsup);
|
|
aProjPL.Init(aPL, aUmin, aUsup, aVmin, aVsup);
|
|
//
|
|
Standard_Boolean bSmallFaces = Standard_False;
|
|
aDt3D = MinStep3D(theE1, theF1, theLCSOff, aPx, theContext, bSmallFaces);
|
|
bIsComputed = GetFaceDir(theE1, theF1, aPx, aT, aDTgt, bSmallFaces,
|
|
aDN1, aDBF, theContext, aProjPL, aDt3D);
|
|
if (!bIsComputed) {
|
|
#ifdef OCCT_DEBUG
|
|
cout << "BOPTools_AlgoTools::GetFaceOff(): incorrect computation of bi-normal direction." << endl;
|
|
#endif
|
|
}
|
|
//
|
|
aDTF=aDN1^aDBF;
|
|
//
|
|
bRet=Standard_True;
|
|
aIt.Initialize(theLCSOff);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const BOPTools_CoupleOfShape& aCS=aIt.Value();
|
|
const TopoDS_Edge& aE2=(*(TopoDS_Edge*)(&aCS.Shape1()));
|
|
const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aCS.Shape2()));
|
|
//
|
|
aDTgt2 = (aE2.Orientation()==aOr) ? aDTgt : aDTgt.Reversed();
|
|
bIsComputed = GetFaceDir(aE2, aF2, aPx, aT, aDTgt2, bSmallFaces, aDN2,
|
|
aDBF2, theContext, aProjPL, aDt3D);
|
|
if (!bIsComputed) {
|
|
#ifdef OCCT_DEBUG
|
|
cout << "BOPTools_AlgoTools::GetFaceOff(): incorrect computation of bi-normal direction." << endl;
|
|
#endif
|
|
}
|
|
//Angle
|
|
aAngle=AngleWithRef(aDBF, aDBF2, aDTF);
|
|
//
|
|
if(aAngle<0.) {
|
|
aAngle=aTwoPI+aAngle;
|
|
}
|
|
//
|
|
if (aAngle<aPA) {
|
|
if (aF2==theF1) {
|
|
aAngle=M_PI;
|
|
}
|
|
else if (aF2.IsSame(theF1)) {
|
|
aAngle=aTwoPI;
|
|
}
|
|
}
|
|
//
|
|
if (fabs(aAngle-aAngleMin)<aPA) {
|
|
// the minimal angle can not be found
|
|
bRet=Standard_False;
|
|
}
|
|
//
|
|
if (aAngle<aAngleMin){
|
|
aAngleMin=aAngle;
|
|
theFOff=aF2;
|
|
}
|
|
else if (aAngle==aAngleMin) {
|
|
// the minimal angle can not be found
|
|
bRet=Standard_False;
|
|
}
|
|
}
|
|
return bRet;
|
|
}
|
|
//=======================================================================
|
|
//function : GetEdgeOff
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::GetEdgeOff(const TopoDS_Edge& theE1,
|
|
const TopoDS_Face& theF2,
|
|
TopoDS_Edge& theE2)
|
|
{
|
|
Standard_Boolean bFound;
|
|
TopAbs_Orientation aOr1, aOr1C, aOr2;
|
|
TopExp_Explorer anExp;
|
|
//
|
|
bFound=Standard_False;
|
|
aOr1=theE1.Orientation();
|
|
aOr1C=TopAbs::Reverse(aOr1);
|
|
//
|
|
anExp.Init(theF2, TopAbs_EDGE);
|
|
for (; anExp.More(); anExp.Next()) {
|
|
const TopoDS_Edge& aEF2=(*(TopoDS_Edge*)(&anExp.Current()));
|
|
if (aEF2.IsSame(theE1)) {
|
|
aOr2=aEF2.Orientation();
|
|
if (aOr2==aOr1C) {
|
|
theE2=aEF2;
|
|
bFound=!bFound;
|
|
return bFound;
|
|
}
|
|
}
|
|
}
|
|
return bFound;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : AreFacesSameDomain
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::AreFacesSameDomain
|
|
(const TopoDS_Face& theF1,
|
|
const TopoDS_Face& theF2,
|
|
const Handle(IntTools_Context)& theContext,
|
|
const Standard_Real theFuzz)
|
|
{
|
|
Standard_Boolean bFacesSD = Standard_False;
|
|
|
|
// The idea is to find a point inside the first face
|
|
// and check its validity for the second face.
|
|
// If valid - the faces are same domain.
|
|
|
|
gp_Pnt aP1;
|
|
gp_Pnt2d aP2D1;
|
|
// Find point inside the first face
|
|
Standard_Integer iErr =
|
|
BOPTools_AlgoTools3D::PointInFace(theF1, aP1, aP2D1, theContext);
|
|
|
|
if (iErr != 0)
|
|
{
|
|
// unable to find the point
|
|
return bFacesSD;
|
|
}
|
|
|
|
// Check validity of the point for second face
|
|
|
|
// Compute the tolerance to check the validity -
|
|
// sum of tolerance of faces and fuzzy tolerance
|
|
|
|
// Compute the tolerance of the faces, taking into account the deviation
|
|
// of the edges from the surfaces
|
|
Standard_Real aTolF1 = BRep_Tool::Tolerance(theF1),
|
|
aTolF2 = BRep_Tool::Tolerance(theF2);
|
|
|
|
// Find maximal tolerance of edges.
|
|
// The faces should have the same boundaries, thus
|
|
// it does not matter which face to explore.
|
|
{
|
|
Standard_Real aTolEMax = -1.;
|
|
TopExp_Explorer anExpE(theF1, TopAbs_EDGE);
|
|
for (; anExpE.More(); anExpE.Next())
|
|
{
|
|
const TopoDS_Edge& aE = TopoDS::Edge(anExpE.Current());
|
|
if (!BRep_Tool::Degenerated(aE))
|
|
{
|
|
Standard_Real aTolE = BRep_Tool::Tolerance(aE);
|
|
if (aTolE > aTolEMax)
|
|
aTolEMax = aTolE;
|
|
}
|
|
}
|
|
if (aTolEMax > aTolF1) aTolF1 = aTolEMax;
|
|
if (aTolEMax > aTolF2) aTolF2 = aTolEMax;
|
|
}
|
|
|
|
// Checking criteria
|
|
Standard_Real aTol = aTolF1 + aTolF2 + Max(theFuzz, Precision::Confusion());
|
|
|
|
// Project and classify the point on second face
|
|
bFacesSD = theContext->IsValidPointForFace(aP1, theF2, aTol);
|
|
|
|
return bFacesSD;
|
|
}
|
|
|
|
//=======================================================================
|
|
// function: Sense
|
|
// purpose:
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools::Sense(const TopoDS_Face& theF1,
|
|
const TopoDS_Face& theF2,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Integer iSense=0;
|
|
gp_Dir aDNF1, aDNF2;
|
|
TopoDS_Edge aE1, aE2;
|
|
TopExp_Explorer aExp;
|
|
//
|
|
aExp.Init(theF1, TopAbs_EDGE);
|
|
for (; aExp.More(); aExp.Next()) {
|
|
aE1=(*(TopoDS_Edge*)(&aExp.Current()));
|
|
if (!BRep_Tool::Degenerated(aE1)) {
|
|
if (!BRep_Tool::IsClosed(aE1, theF1)) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
//
|
|
aExp.Init(theF2, TopAbs_EDGE);
|
|
for (; aExp.More(); aExp.Next()) {
|
|
aE2=(*(TopoDS_Edge*)(&aExp.Current()));
|
|
if (!BRep_Tool::Degenerated(aE2)) {
|
|
if (!BRep_Tool::IsClosed(aE2, theF2)) {
|
|
if (aE2.IsSame(aE1)) {
|
|
iSense=1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//
|
|
if (!iSense) {
|
|
return iSense;
|
|
}
|
|
//
|
|
BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE1, theF1, aDNF1, theContext);
|
|
BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE2, theF2, aDNF2, theContext);
|
|
//
|
|
iSense=BOPTools_AlgoTools3D::SenseFlag(aDNF1, aDNF2);
|
|
//
|
|
return iSense;
|
|
}
|
|
//=======================================================================
|
|
// function: IsSplitToReverse
|
|
// purpose:
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse
|
|
(const TopoDS_Shape& theSp,
|
|
const TopoDS_Shape& theSr,
|
|
const Handle(IntTools_Context)& theContext,
|
|
Standard_Integer *theError)
|
|
{
|
|
Standard_Boolean bRet;
|
|
TopAbs_ShapeEnum aType;
|
|
//
|
|
bRet=Standard_False;
|
|
//
|
|
aType=theSp.ShapeType();
|
|
switch (aType) {
|
|
case TopAbs_EDGE: {
|
|
const TopoDS_Edge& aESp=(*(TopoDS_Edge*)(&theSp));
|
|
const TopoDS_Edge& aESr=(*(TopoDS_Edge*)(&theSr));
|
|
bRet=BOPTools_AlgoTools::IsSplitToReverse(aESp, aESr, theContext, theError);
|
|
}
|
|
break;
|
|
//
|
|
case TopAbs_FACE: {
|
|
const TopoDS_Face& aFSp=(*(TopoDS_Face*)(&theSp));
|
|
const TopoDS_Face& aFSr=(*(TopoDS_Face*)(&theSr));
|
|
bRet=BOPTools_AlgoTools::IsSplitToReverse(aFSp, aFSr, theContext, theError);
|
|
}
|
|
break;
|
|
//
|
|
default:
|
|
if (theError)
|
|
*theError = 100;
|
|
break;
|
|
}
|
|
return bRet;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : IsSplitToReverseWithWarn
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsSplitToReverseWithWarn(const TopoDS_Shape& theSplit,
|
|
const TopoDS_Shape& theShape,
|
|
const Handle(IntTools_Context)& theContext,
|
|
const Handle(Message_Report)& theReport)
|
|
{
|
|
Standard_Integer anErr;
|
|
Standard_Boolean isToReverse = BOPTools_AlgoTools::IsSplitToReverse(theSplit, theShape, theContext, &anErr);
|
|
if (anErr != 0 && !theReport.IsNull())
|
|
{
|
|
// The error occurred during the check.
|
|
// Add warning to the report, storing the shapes into the warning.
|
|
TopoDS_Compound aWC;
|
|
BRep_Builder().MakeCompound(aWC);
|
|
BRep_Builder().Add(aWC, theSplit);
|
|
BRep_Builder().Add(aWC, theShape);
|
|
theReport->AddAlert(Message_Warning, new BOPAlgo_AlertUnableToOrientTheShape(aWC));
|
|
}
|
|
return isToReverse;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function :IsSplitToReverse
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse
|
|
(const TopoDS_Face& theFSp,
|
|
const TopoDS_Face& theFSr,
|
|
const Handle(IntTools_Context)& theContext,
|
|
Standard_Integer *theError)
|
|
{
|
|
// Set OK error status
|
|
if (theError)
|
|
*theError = 0;
|
|
|
|
// Compare surfaces
|
|
Handle(Geom_Surface) aSFSp = BRep_Tool::Surface(theFSp);
|
|
Handle(Geom_Surface) aSFOr = BRep_Tool::Surface(theFSr);
|
|
if (aSFSp == aSFOr) {
|
|
return theFSp.Orientation() != theFSr.Orientation();
|
|
}
|
|
//
|
|
Standard_Boolean bDone = Standard_False;
|
|
// Find the point inside the split face
|
|
gp_Pnt aPFSp;
|
|
gp_Pnt2d aP2DFSp;
|
|
//
|
|
// Error status
|
|
Standard_Integer iErr;
|
|
// Use the hatcher to find the point in the middle of the face
|
|
iErr = BOPTools_AlgoTools3D::PointInFace(theFSp, aPFSp, aP2DFSp, theContext);
|
|
if (iErr) {
|
|
// Hatcher has failed to find a point.
|
|
// Try to get the point near some not closed and
|
|
// not degenerated edge on the split face.
|
|
TopExp_Explorer anExp(theFSp, TopAbs_EDGE);
|
|
for (; anExp.More(); anExp.Next()) {
|
|
const TopoDS_Edge& aESp = (*(TopoDS_Edge*)(&anExp.Current()));
|
|
if (!BRep_Tool::Degenerated(aESp) && !BRep_Tool::IsClosed(aESp, theFSp)) {
|
|
iErr = BOPTools_AlgoTools3D::PointNearEdge
|
|
(aESp, theFSp, aP2DFSp, aPFSp, theContext);
|
|
if (!iErr) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
//
|
|
if (!anExp.More()) {
|
|
if (theError)
|
|
*theError = 1;
|
|
// The point has not been found.
|
|
return bDone;
|
|
}
|
|
}
|
|
//
|
|
// Compute normal direction of the split face
|
|
gp_Dir aDNFSp;
|
|
bDone = BOPTools_AlgoTools3D::GetNormalToSurface
|
|
(aSFSp, aP2DFSp.X(), aP2DFSp.Y(), aDNFSp);
|
|
if (!bDone) {
|
|
if (theError)
|
|
*theError = 2;
|
|
return bDone;
|
|
}
|
|
//
|
|
if (theFSp.Orientation() == TopAbs_REVERSED){
|
|
aDNFSp.Reverse();
|
|
}
|
|
//
|
|
// Project the point from the split face on the original face
|
|
// to find its UV coordinates
|
|
GeomAPI_ProjectPointOnSurf& aProjector = theContext->ProjPS(theFSr);
|
|
aProjector.Perform(aPFSp);
|
|
bDone = (aProjector.NbPoints() > 0);
|
|
if (!bDone) {
|
|
if (theError)
|
|
*theError = 3;
|
|
return bDone;
|
|
}
|
|
// UV coordinates of the point on the original face
|
|
Standard_Real aU, aV;
|
|
aProjector.LowerDistanceParameters(aU, aV);
|
|
//
|
|
// Compute normal direction for the original face in this point
|
|
gp_Dir aDNFOr;
|
|
bDone = BOPTools_AlgoTools3D::GetNormalToSurface(aSFOr, aU, aV, aDNFOr);
|
|
if (!bDone) {
|
|
if (theError)
|
|
*theError = 4;
|
|
return bDone;
|
|
}
|
|
//
|
|
if (theFSr.Orientation() == TopAbs_REVERSED) {
|
|
aDNFOr.Reverse();
|
|
}
|
|
//
|
|
// compare the normals
|
|
Standard_Real aCos = aDNFSp*aDNFOr;
|
|
return (aCos < 0.);
|
|
}
|
|
//=======================================================================
|
|
//function :IsSplitToReverse
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse
|
|
(const TopoDS_Edge& theESp,
|
|
const TopoDS_Edge& theEOr,
|
|
const Handle(IntTools_Context)& theContext,
|
|
Standard_Integer *theError)
|
|
{
|
|
// The idea is to compare the tangent vectors of two edges computed in
|
|
// the same point. Thus, we need to take the point on split edge (since it is
|
|
// shorter) and project it onto original edge to find corresponding parameter.
|
|
|
|
if (BRep_Tool::Degenerated(theESp) ||
|
|
BRep_Tool::Degenerated(theEOr))
|
|
{
|
|
if (theError)
|
|
*theError = 1;
|
|
return Standard_False;
|
|
}
|
|
|
|
// Set OK error status
|
|
if (theError)
|
|
*theError = 0;
|
|
|
|
// Get the curves from the edges
|
|
Standard_Real f, l;
|
|
Handle(Geom_Curve) aCSp = BRep_Tool::Curve(theESp, f, l);
|
|
Handle(Geom_Curve) aCOr = BRep_Tool::Curve(theEOr, f, l);
|
|
|
|
// If the curves are the same, compare orientations only
|
|
if (aCSp == aCOr)
|
|
return theESp.Orientation() != theEOr.Orientation();
|
|
|
|
// Find valid range of the split edge, to ensure that the point for computing
|
|
// tangent vectors will be inside both edges.
|
|
if (!BRepLib::FindValidRange(theESp, f, l))
|
|
BRep_Tool::Range(theESp, f, l);
|
|
|
|
// Error code
|
|
Standard_Integer anErr = 0;
|
|
// Try a few sample points on the split edge until first valid found
|
|
const Standard_Integer aNbP = 11;
|
|
const Standard_Real aDT = (l - f) / aNbP;
|
|
for (Standard_Integer i = 1; i < aNbP; ++i)
|
|
{
|
|
const Standard_Real aTm = f + i*aDT;
|
|
// Compute tangent vector on split edge
|
|
gp_Vec aVSpTgt;
|
|
if (!BOPTools_AlgoTools2D::EdgeTangent(theESp, aTm, aVSpTgt))
|
|
{
|
|
// Unable to compute the tangent vector on the split edge
|
|
// in this point -> take the next point
|
|
anErr = 2;
|
|
continue;
|
|
}
|
|
|
|
// Find corresponding parameter on the original edge
|
|
Standard_Real aTmOr;
|
|
if (!theContext->ProjectPointOnEdge(aCSp->Value(aTm), theEOr, aTmOr))
|
|
{
|
|
// Unable to project the point inside the split edge
|
|
// onto the original edge -> take the next point
|
|
anErr = 3;
|
|
continue;
|
|
}
|
|
|
|
// Compute tangent vector on original edge
|
|
gp_Vec aVOrTgt;
|
|
if (!BOPTools_AlgoTools2D::EdgeTangent(theEOr, aTmOr, aVOrTgt))
|
|
{
|
|
// Unable to compute the tangent vector on the original edge
|
|
// in this point -> take the next point
|
|
anErr = 4;
|
|
continue;
|
|
}
|
|
|
|
// Compute the Dot product
|
|
Standard_Real aCos = aVSpTgt.Dot(aVOrTgt);
|
|
return (aCos < 0.);
|
|
}
|
|
|
|
if (theError)
|
|
*theError = anErr;
|
|
|
|
return Standard_False;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : IsHole
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsHole(const TopoDS_Shape& aW,
|
|
const TopoDS_Shape& aFace)
|
|
{
|
|
Standard_Boolean bIsHole;
|
|
Standard_Integer i, aNbS;
|
|
Standard_Real aT1, aT2, aS;
|
|
Standard_Real aU1, aU, dU;
|
|
Standard_Real aX1, aY1, aX0, aY0;
|
|
TopAbs_Orientation aOr;
|
|
|
|
gp_Pnt2d aP2D0, aP2D1;
|
|
Handle(Geom2d_Curve) aC2D;
|
|
TopoDS_Face aF, aFF;
|
|
TopoDS_Iterator aItW;
|
|
//
|
|
bIsHole=Standard_False;
|
|
//
|
|
aF=(*(TopoDS_Face *)(&aFace));
|
|
aFF=aF;
|
|
aFF.Orientation(TopAbs_FORWARD);
|
|
//
|
|
aS=0.;
|
|
aItW.Initialize(aW);
|
|
for (; aItW.More(); aItW.Next()) {
|
|
const TopoDS_Edge& aE=(*(TopoDS_Edge *)(&aItW.Value()));
|
|
aOr=aE.Orientation();
|
|
if (!(aOr==TopAbs_FORWARD ||
|
|
aOr==TopAbs_REVERSED)) {
|
|
continue;
|
|
}
|
|
//
|
|
aC2D=BRep_Tool::CurveOnSurface(aE, aFF, aT1, aT2);
|
|
if (aC2D.IsNull()) {
|
|
break; //xx
|
|
}
|
|
//
|
|
BRepAdaptor_Curve2d aBAC2D(aE, aFF);
|
|
aNbS=Geom2dInt_Geom2dCurveTool::NbSamples(aBAC2D);
|
|
if (aNbS>2) {
|
|
aNbS*=4;
|
|
}
|
|
//
|
|
dU=(aT2-aT1)/(Standard_Real)(aNbS-1);
|
|
aU =aT1;
|
|
aU1=aT1;
|
|
if (aOr==TopAbs_REVERSED) {
|
|
aU =aT2;
|
|
aU1=aT2;
|
|
dU=-dU;
|
|
}
|
|
//
|
|
aBAC2D.D0(aU, aP2D0);
|
|
for(i=2; i<=aNbS; i++) {
|
|
aU=aU1+(i-1)*dU;
|
|
aBAC2D.D0(aU, aP2D1);
|
|
aP2D0.Coord(aX0, aY0);
|
|
aP2D1.Coord(aX1, aY1);
|
|
//
|
|
aS=aS+(aY0+aY1)*(aX1-aX0);
|
|
//
|
|
aP2D0=aP2D1;
|
|
}
|
|
}//for (; aItW.More(); aItW.Next()) {
|
|
bIsHole=(aS>0.);
|
|
return bIsHole;
|
|
}
|
|
|
|
//=======================================================================
|
|
// function: MakeContainer
|
|
// purpose:
|
|
//=======================================================================
|
|
void BOPTools_AlgoTools::MakeContainer(const TopAbs_ShapeEnum theType,
|
|
TopoDS_Shape& theC)
|
|
{
|
|
BRep_Builder aBB;
|
|
//
|
|
switch(theType) {
|
|
case TopAbs_COMPOUND:{
|
|
TopoDS_Compound aC;
|
|
aBB.MakeCompound(aC);
|
|
theC=aC;
|
|
}
|
|
break;
|
|
//
|
|
case TopAbs_COMPSOLID:{
|
|
TopoDS_CompSolid aCS;
|
|
aBB.MakeCompSolid(aCS);
|
|
theC=aCS;
|
|
}
|
|
break;
|
|
//
|
|
case TopAbs_SOLID:{
|
|
TopoDS_Solid aSolid;
|
|
aBB.MakeSolid(aSolid);
|
|
theC=aSolid;
|
|
}
|
|
break;
|
|
//
|
|
//
|
|
case TopAbs_SHELL:{
|
|
TopoDS_Shell aShell;
|
|
aBB.MakeShell(aShell);
|
|
theC=aShell;
|
|
}
|
|
break;
|
|
//
|
|
case TopAbs_WIRE: {
|
|
TopoDS_Wire aWire;
|
|
aBB.MakeWire(aWire);
|
|
theC=aWire;
|
|
}
|
|
break;
|
|
//
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
//=======================================================================
|
|
// function: MakePCurve
|
|
// purpose:
|
|
//=======================================================================
|
|
void BOPTools_AlgoTools::MakePCurve(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF1,
|
|
const TopoDS_Face& aF2,
|
|
const IntTools_Curve& aIC,
|
|
const Standard_Boolean bPC1,
|
|
const Standard_Boolean bPC2,
|
|
const Handle(IntTools_Context)& theContext)
|
|
|
|
{
|
|
Standard_Integer i;
|
|
Standard_Real aTolE, aT1, aT2, aOutFirst, aOutLast, aOutTol;
|
|
Handle(Geom2d_Curve) aC2D, aC2DA, aC2Dx1;
|
|
TopoDS_Face aFFWD;
|
|
BRep_Builder aBB;
|
|
Standard_Boolean bPC;
|
|
//
|
|
aTolE=BRep_Tool::Tolerance(aE);
|
|
//
|
|
const Handle(Geom_Curve)& aC3DE=BRep_Tool::Curve(aE, aT1, aT2);
|
|
Handle(Geom_TrimmedCurve)aC3DETrim=
|
|
new Geom_TrimmedCurve(aC3DE, aT1, aT2);
|
|
//
|
|
for (i=0; i<2; ++i) {
|
|
bPC = !i ? bPC1 : bPC2;
|
|
if (!bPC) {
|
|
continue;
|
|
}
|
|
//
|
|
if (!i) {
|
|
aFFWD=aF1;
|
|
aC2Dx1=aIC.FirstCurve2d();
|
|
}
|
|
else {
|
|
aFFWD=aF2;
|
|
aC2Dx1=aIC.SecondCurve2d();
|
|
}
|
|
//
|
|
aFFWD.Orientation(TopAbs_FORWARD);
|
|
//
|
|
aC2D=aC2Dx1;
|
|
if (aC2D.IsNull()) {
|
|
BOPTools_AlgoTools2D::BuildPCurveForEdgeOnFace(aE, aFFWD, theContext);
|
|
BOPTools_AlgoTools2D::CurveOnSurface(aE, aFFWD, aC2D,
|
|
aOutFirst, aOutLast,
|
|
aOutTol, theContext);
|
|
}
|
|
//
|
|
if (aC3DE->IsPeriodic()) {
|
|
BOPTools_AlgoTools2D::AdjustPCurveOnFace(aFFWD, aT1, aT2, aC2D,
|
|
aC2DA, theContext);
|
|
}
|
|
else {
|
|
BOPTools_AlgoTools2D::AdjustPCurveOnFace(aFFWD, aC3DETrim, aC2D,
|
|
aC2DA, theContext);
|
|
}
|
|
//
|
|
aBB.UpdateEdge(aE, aC2DA, aFFWD, aTolE);
|
|
//BRepLib::SameParameter(aE);
|
|
}
|
|
BRepLib::SameParameter(aE);
|
|
}
|
|
//=======================================================================
|
|
// function: MakeEdge
|
|
// purpose:
|
|
//=======================================================================
|
|
void BOPTools_AlgoTools::MakeEdge(const IntTools_Curve& theIC,
|
|
const TopoDS_Vertex& theV1,
|
|
const Standard_Real theT1,
|
|
const TopoDS_Vertex& theV2,
|
|
const Standard_Real theT2,
|
|
const Standard_Real theTolR3D,
|
|
TopoDS_Edge& theE)
|
|
{
|
|
BRep_Builder aBB;
|
|
Standard_Real aNeedTol = theTolR3D + 1e-12;
|
|
//
|
|
aBB.UpdateVertex(theV1, aNeedTol);
|
|
aBB.UpdateVertex(theV2, aNeedTol);
|
|
//
|
|
BOPTools_AlgoTools::MakeSectEdge (theIC, theV1, theT1, theV2, theT2,
|
|
theE);
|
|
//
|
|
aBB.UpdateEdge(theE, theTolR3D);
|
|
}
|
|
//=======================================================================
|
|
// function: ComputeVV
|
|
// purpose:
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools::ComputeVV(const TopoDS_Vertex& aV1,
|
|
const gp_Pnt& aP2,
|
|
const Standard_Real aTolP2)
|
|
{
|
|
Standard_Real aTolV1, aTolSum, aTolSum2, aD2;
|
|
gp_Pnt aP1;
|
|
//
|
|
aTolV1=BRep_Tool::Tolerance(aV1);
|
|
|
|
aTolSum = aTolV1 + aTolP2 + Precision::Confusion();
|
|
aTolSum2=aTolSum*aTolSum;
|
|
//
|
|
aP1=BRep_Tool::Pnt(aV1);
|
|
//
|
|
aD2=aP1.SquareDistance(aP2);
|
|
if (aD2>aTolSum2) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
//=======================================================================
|
|
// function: ComputeVV
|
|
// purpose:
|
|
//=======================================================================
|
|
Standard_Integer BOPTools_AlgoTools::ComputeVV(const TopoDS_Vertex& aV1,
|
|
const TopoDS_Vertex& aV2,
|
|
const Standard_Real aFuzz)
|
|
{
|
|
Standard_Real aTolV1, aTolV2, aTolSum, aTolSum2, aD2;
|
|
gp_Pnt aP1, aP2;
|
|
Standard_Real aFuzz1 = (aFuzz > Precision::Confusion() ? aFuzz : Precision::Confusion());
|
|
//
|
|
aTolV1=BRep_Tool::Tolerance(aV1);
|
|
aTolV2=BRep_Tool::Tolerance(aV2);
|
|
aTolSum=aTolV1+aTolV2+aFuzz1;
|
|
aTolSum2=aTolSum*aTolSum;
|
|
//
|
|
aP1=BRep_Tool::Pnt(aV1);
|
|
aP2=BRep_Tool::Pnt(aV2);
|
|
//
|
|
aD2=aP1.SquareDistance(aP2);
|
|
if (aD2>aTolSum2) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
//=======================================================================
|
|
// function: MakeVertex
|
|
// purpose :
|
|
//=======================================================================
|
|
void BOPTools_AlgoTools::MakeVertex(const TopTools_ListOfShape& aLV,
|
|
TopoDS_Vertex& aVnew)
|
|
{
|
|
Standard_Integer aNb = aLV.Extent();
|
|
if (aNb == 1)
|
|
aVnew=*((TopoDS_Vertex*)(&aLV.First()));
|
|
else if (aNb > 1)
|
|
{
|
|
Standard_Real aNTol;
|
|
gp_Pnt aNC;
|
|
BRepLib::BoundingVertex(aLV, aNC, aNTol);
|
|
BRep_Builder aBB;
|
|
aBB.MakeVertex(aVnew, aNC, aNTol);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : GetEdgeOnFace
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::GetEdgeOnFace
|
|
(const TopoDS_Edge& theE1,
|
|
const TopoDS_Face& theF2,
|
|
TopoDS_Edge& theE2)
|
|
{
|
|
Standard_Boolean bFound;
|
|
TopoDS_Iterator aItF, aItW;
|
|
//
|
|
bFound=Standard_False;
|
|
//
|
|
aItF.Initialize(theF2);
|
|
for (; aItF.More(); aItF.Next()) {
|
|
const TopoDS_Shape& aW=aItF.Value();
|
|
aItW.Initialize(aW);
|
|
for (; aItW.More(); aItW.Next()) {
|
|
const TopoDS_Shape& aE=aItW.Value();
|
|
if (aE.IsSame(theE1)) {
|
|
theE2=(*(TopoDS_Edge*)(&aE));
|
|
bFound=!bFound;
|
|
return bFound;
|
|
}
|
|
}
|
|
}
|
|
return bFound;
|
|
}
|
|
//=======================================================================
|
|
//function : FindFacePairs
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean FindFacePairs (const TopoDS_Edge& theE,
|
|
const TopTools_ListOfShape& thLF,
|
|
BOPTools_ListOfCoupleOfShape& theLCFF,
|
|
const Handle(IntTools_Context)& theContext)
|
|
{
|
|
Standard_Boolean bFound;
|
|
Standard_Integer i, aNbCEF;
|
|
TopAbs_Orientation aOr, aOrC = TopAbs_FORWARD;
|
|
TopTools_MapOfShape aMFP;
|
|
TopoDS_Face aF1, aF2;
|
|
TopoDS_Edge aEL, aE1;
|
|
TopTools_ListIteratorOfListOfShape aItLF;
|
|
BOPTools_CoupleOfShape aCEF, aCFF;
|
|
BOPTools_ListOfCoupleOfShape aLCEF, aLCEFx;
|
|
BOPTools_ListIteratorOfListOfCoupleOfShape aIt;
|
|
//
|
|
bFound=Standard_True;
|
|
//
|
|
// Preface aLCEF
|
|
aItLF.Initialize(thLF);
|
|
for (; aItLF.More(); aItLF.Next()) {
|
|
const TopoDS_Face& aFL=(*(TopoDS_Face*)(&aItLF.Value()));
|
|
//
|
|
bFound=BOPTools_AlgoTools::GetEdgeOnFace(theE, aFL, aEL);
|
|
if (!bFound) {
|
|
return bFound; // it can not be so
|
|
}
|
|
//
|
|
aCEF.SetShape1(aEL);
|
|
aCEF.SetShape2(aFL);
|
|
aLCEF.Append(aCEF);
|
|
}
|
|
//
|
|
aNbCEF=aLCEF.Extent();
|
|
while(aNbCEF) {
|
|
//
|
|
// aLCEFx
|
|
aLCEFx.Clear();
|
|
aIt.Initialize(aLCEF);
|
|
for (i=0; aIt.More(); aIt.Next(), ++i) {
|
|
const BOPTools_CoupleOfShape& aCSx=aIt.Value();
|
|
const TopoDS_Shape& aEx=aCSx.Shape1();
|
|
const TopoDS_Shape& aFx=aCSx.Shape2();
|
|
//
|
|
aOr=aEx.Orientation();
|
|
//
|
|
if (!i) {
|
|
aOrC=TopAbs::Reverse(aOr);
|
|
aE1=(*(TopoDS_Edge*)(&aEx));
|
|
aF1=(*(TopoDS_Face*)(&aFx));
|
|
aMFP.Add(aFx);
|
|
continue;
|
|
}
|
|
//
|
|
if (aOr==aOrC) {
|
|
aLCEFx.Append(aCSx);
|
|
aMFP.Add(aFx);
|
|
}
|
|
}
|
|
//
|
|
// F2
|
|
BOPTools_AlgoTools::GetFaceOff(aE1, aF1, aLCEFx, aF2, theContext);
|
|
//
|
|
aCFF.SetShape1(aF1);
|
|
aCFF.SetShape2(aF2);
|
|
theLCFF.Append(aCFF);
|
|
//
|
|
aMFP.Add(aF1);
|
|
aMFP.Add(aF2);
|
|
//
|
|
// refine aLCEF
|
|
aLCEFx.Clear();
|
|
aLCEFx=aLCEF;
|
|
aLCEF.Clear();
|
|
aIt.Initialize(aLCEFx);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const BOPTools_CoupleOfShape& aCSx=aIt.Value();
|
|
const TopoDS_Shape& aFx=aCSx.Shape2();
|
|
if (!aMFP.Contains(aFx)) {
|
|
aLCEF.Append(aCSx);
|
|
}
|
|
}
|
|
//
|
|
aNbCEF=aLCEF.Extent();
|
|
}//while(aNbCEF) {
|
|
//
|
|
return bFound;
|
|
}
|
|
//=======================================================================
|
|
//function : AngleWithRef
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Real AngleWithRef(const gp_Dir& theD1,
|
|
const gp_Dir& theD2,
|
|
const gp_Dir& theDRef)
|
|
{
|
|
Standard_Real aCosinus, aSinus, aBeta, aHalfPI, aScPr;
|
|
gp_XYZ aXYZ;
|
|
//
|
|
aHalfPI=0.5*M_PI;
|
|
//
|
|
const gp_XYZ& aXYZ1=theD1.XYZ();
|
|
const gp_XYZ& aXYZ2=theD2.XYZ();
|
|
aXYZ=aXYZ1.Crossed(aXYZ2);
|
|
aSinus=aXYZ.Modulus();
|
|
aCosinus=theD1*theD2;
|
|
//
|
|
aBeta=0.;
|
|
if (aSinus>=0.) {
|
|
aBeta=aHalfPI*(1.-aCosinus);
|
|
}
|
|
else {
|
|
aBeta=2.*M_PI-aHalfPI*(3.+aCosinus);
|
|
}
|
|
//
|
|
aScPr=aXYZ.Dot(theDRef.XYZ());
|
|
if (aScPr<0.) {
|
|
aBeta=-aBeta;
|
|
}
|
|
return aBeta;
|
|
}
|
|
//=======================================================================
|
|
// function: IsBlockInOnFace
|
|
// purpose:
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsBlockInOnFace
|
|
(const IntTools_Range& aShrR,
|
|
const TopoDS_Face& aF,
|
|
const TopoDS_Edge& aE1,
|
|
const Handle(IntTools_Context)& aContext)
|
|
{
|
|
Standard_Boolean bFlag;
|
|
Standard_Real f1, l1, ULD, VLD;
|
|
gp_Pnt2d aP2D;
|
|
gp_Pnt aP11, aP12;
|
|
//
|
|
aShrR.Range(f1, l1);
|
|
Standard_Real dt=0.0075, k;//dt=0.001, k;
|
|
k=dt*(l1-f1);
|
|
f1=f1+k;
|
|
l1=l1-k;
|
|
//
|
|
// Treatment P11
|
|
BOPTools_AlgoTools::PointOnEdge(aE1, f1, aP11);
|
|
//
|
|
GeomAPI_ProjectPointOnSurf& aProjector=aContext->ProjPS(aF);
|
|
aProjector.Perform(aP11);
|
|
//
|
|
bFlag=aProjector.IsDone();
|
|
if (!bFlag) {
|
|
return bFlag;
|
|
}
|
|
|
|
aProjector.LowerDistanceParameters(ULD, VLD);
|
|
aP2D.SetCoord(ULD, VLD);
|
|
//
|
|
bFlag=aContext->IsPointInOnFace (aF, aP2D);
|
|
//
|
|
if (!bFlag) {
|
|
return bFlag;
|
|
}
|
|
//
|
|
// Treatment P12
|
|
BOPTools_AlgoTools::PointOnEdge(aE1, l1, aP12);
|
|
//
|
|
aProjector.Perform(aP12);
|
|
//
|
|
bFlag=aProjector.IsDone();
|
|
if (!bFlag) {
|
|
return bFlag;
|
|
}
|
|
|
|
aProjector.LowerDistanceParameters(ULD, VLD);
|
|
aP2D.SetCoord(ULD, VLD);
|
|
//
|
|
bFlag=aContext->IsPointInOnFace (aF, aP2D);
|
|
//
|
|
if (!bFlag) {
|
|
return bFlag;
|
|
}
|
|
//
|
|
// Treatment intemediate
|
|
Standard_Real m1, aTolF, aTolE, aTol, aDist;
|
|
m1=IntTools_Tools::IntermediatePoint(f1, l1);
|
|
BOPTools_AlgoTools::PointOnEdge(aE1, m1, aP12);
|
|
//
|
|
aProjector.Perform(aP12);
|
|
//
|
|
bFlag=aProjector.IsDone();
|
|
if (!bFlag) {
|
|
return bFlag;
|
|
}
|
|
//
|
|
aTolE=BRep_Tool::Tolerance(aE1);
|
|
aTolF=BRep_Tool::Tolerance(aF);
|
|
aTol=aTolE+aTolF;
|
|
aDist=aProjector.LowerDistance();
|
|
if (aDist > aTol){
|
|
return Standard_False;
|
|
}
|
|
|
|
aProjector.LowerDistanceParameters(ULD, VLD);
|
|
aP2D.SetCoord(ULD, VLD);
|
|
//
|
|
bFlag=aContext->IsPointInOnFace (aF, aP2D);
|
|
//
|
|
if (!bFlag) {
|
|
return bFlag;
|
|
}
|
|
return bFlag;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : IsMicroEdge
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsMicroEdge
|
|
(const TopoDS_Edge& aE,
|
|
const Handle(IntTools_Context)& aCtx,
|
|
const Standard_Boolean bCheckSplittable)
|
|
{
|
|
Standard_Boolean bRet;
|
|
Standard_Real aT1, aT2, aTmp;
|
|
Handle(Geom_Curve) aC3D;
|
|
TopoDS_Vertex aV1, aV2;
|
|
//
|
|
bRet=(BRep_Tool::Degenerated(aE) ||
|
|
!BRep_Tool::IsGeometric(aE));
|
|
if (bRet) {
|
|
return bRet;
|
|
}
|
|
//
|
|
aC3D=BRep_Tool::Curve(aE, aT1, aT2);
|
|
TopExp::Vertices(aE, aV1, aV2);
|
|
aT1=BRep_Tool::Parameter(aV1, aE);
|
|
aT2=BRep_Tool::Parameter(aV2, aE);
|
|
if (aT2<aT1) {
|
|
aTmp=aT1;
|
|
aT1=aT2;
|
|
aT2=aTmp;
|
|
}
|
|
//
|
|
IntTools_ShrunkRange aSR;
|
|
aSR.SetContext(aCtx);
|
|
aSR.SetData(aE, aT1, aT2, aV1, aV2);
|
|
aSR.Perform();
|
|
bRet = !aSR.IsDone();
|
|
if (!bRet && bCheckSplittable) {
|
|
bRet = !aSR.IsSplittable();
|
|
}
|
|
//
|
|
return bRet;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : GetFaceDir
|
|
//purpose : Get binormal direction for the face in the point aP
|
|
//=======================================================================
|
|
Standard_Boolean GetFaceDir(const TopoDS_Edge& aE,
|
|
const TopoDS_Face& aF,
|
|
const gp_Pnt& aP,
|
|
const Standard_Real aT,
|
|
const gp_Dir& aDTgt,
|
|
const Standard_Boolean theSmallFaces,
|
|
gp_Dir& aDN,
|
|
gp_Dir& aDB,
|
|
const Handle(IntTools_Context)& theContext,
|
|
GeomAPI_ProjectPointOnSurf& aProjPL,
|
|
const Standard_Real aDt)
|
|
{
|
|
Standard_Real aTolE;
|
|
gp_Pnt aPx;
|
|
//
|
|
BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE, aF, aT, aDN, theContext);
|
|
if (aF.Orientation()==TopAbs_REVERSED){
|
|
aDN.Reverse();
|
|
}
|
|
//
|
|
aTolE=BRep_Tool::Tolerance(aE);
|
|
aDB = aDN^aDTgt;
|
|
//
|
|
// do not try to look for the point in the small face by intersecting
|
|
// it with the circle because, most likely, the intersection point will
|
|
// be out of the face
|
|
Standard_Boolean bFound = !theSmallFaces &&
|
|
FindPointInFace(aF, aP, aDB, aPx, theContext, aProjPL, aDt, aTolE);
|
|
if (!bFound) {
|
|
// if the first method did not succeed, try to use hatcher to find the point
|
|
bFound = BOPTools_AlgoTools3D::GetApproxNormalToFaceOnEdge
|
|
(aE, aF, aT, aDt, aPx, aDN, theContext);
|
|
aProjPL.Perform(aPx);
|
|
Standard_ASSERT_RETURN(aProjPL.IsDone(),
|
|
"GetFaceDir: Project point on plane is failed", Standard_False);
|
|
aPx = aProjPL.NearestPoint();
|
|
gp_Vec aVec(aP, aPx);
|
|
aDB.SetXYZ(aVec.XYZ());
|
|
}
|
|
//
|
|
return bFound;
|
|
}
|
|
//=======================================================================
|
|
//function : FindPointInFace
|
|
//purpose : Find a point in the face in direction of <aDB>.
|
|
// To get this point the method intersects the circle with radius
|
|
// <aDt> built in point <aP> with normal perpendicular to <aDB>.
|
|
//=======================================================================
|
|
Standard_Boolean FindPointInFace(const TopoDS_Face& aF,
|
|
const gp_Pnt& aP,
|
|
gp_Dir& aDB,
|
|
gp_Pnt& aPOut,
|
|
const Handle(IntTools_Context)& theContext,
|
|
GeomAPI_ProjectPointOnSurf& aProjPL,
|
|
const Standard_Real aDt,
|
|
const Standard_Real aTolE)
|
|
{
|
|
Standard_Integer aNbItMax;
|
|
Standard_Real aDist, aDTol, aPM, anEps;
|
|
Standard_Boolean bRet;
|
|
gp_Pnt aP1, aPS;
|
|
//
|
|
aDTol = Precision::Angular();
|
|
aPM = aP.XYZ().Modulus();
|
|
if (aPM > 1000.) {
|
|
aDTol = 5.e-16 * aPM;
|
|
}
|
|
bRet = Standard_False;
|
|
aNbItMax = 15;
|
|
anEps = Precision::SquareConfusion();
|
|
//
|
|
GeomAPI_ProjectPointOnSurf& aProj=theContext->ProjPS(aF);
|
|
//
|
|
aPS=aP;
|
|
aProj.Perform(aPS);
|
|
if (!aProj.IsDone()) {
|
|
return bRet;
|
|
}
|
|
aPS=aProj.NearestPoint();
|
|
aProjPL.Perform(aPS);
|
|
aPS=aProjPL.NearestPoint();
|
|
//
|
|
aPS.SetXYZ(aPS.XYZ()+2.*aTolE*aDB.XYZ());
|
|
aProj.Perform(aPS);
|
|
if (!aProj.IsDone()) {
|
|
return bRet;
|
|
}
|
|
aPS=aProj.NearestPoint();
|
|
aProjPL.Perform(aPS);
|
|
aPS=aProjPL.NearestPoint();
|
|
//
|
|
do {
|
|
aP1.SetXYZ(aPS.XYZ()+aDt*aDB.XYZ());
|
|
//
|
|
aProj.Perform(aP1);
|
|
if (!aProj.IsDone()) {
|
|
return bRet;
|
|
}
|
|
aPOut = aProj.NearestPoint();
|
|
aDist = aProj.LowerDistance();
|
|
//
|
|
aProjPL.Perform(aPOut);
|
|
aPOut = aProjPL.NearestPoint();
|
|
//
|
|
gp_Vec aV(aPS, aPOut);
|
|
if (aV.SquareMagnitude() < anEps) {
|
|
return bRet;
|
|
}
|
|
aDB.SetXYZ(aV.XYZ());
|
|
} while (aDist > aDTol && --aNbItMax);
|
|
//
|
|
bRet = aDist < aDTol;
|
|
return bRet;
|
|
}
|
|
//=======================================================================
|
|
//function : MinStep3D
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Real MinStep3D(const TopoDS_Edge& theE1,
|
|
const TopoDS_Face& theF1,
|
|
const BOPTools_ListOfCoupleOfShape& theLCS,
|
|
const gp_Pnt& aP,
|
|
const Handle(IntTools_Context)& theContext,
|
|
Standard_Boolean& theSmallFaces)
|
|
{
|
|
Standard_Real aDt, aTolE, aTolF, aDtMax, aDtMin;
|
|
//
|
|
// add the current pair of edge/face for checking as well
|
|
BOPTools_CoupleOfShape aCS1;
|
|
aCS1.SetShape1(theE1);
|
|
aCS1.SetShape2(theF1);
|
|
//
|
|
BOPTools_ListOfCoupleOfShape aLCS = theLCS;
|
|
aLCS.Append(aCS1);
|
|
//
|
|
aTolE = BRep_Tool::Tolerance(theE1);
|
|
aDtMax = -1.;
|
|
aDtMin = 5.e-6;
|
|
//
|
|
BOPTools_ListIteratorOfListOfCoupleOfShape aIt(aLCS);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const BOPTools_CoupleOfShape& aCS = aIt.Value();
|
|
const TopoDS_Face& aF = (*(TopoDS_Face*)(&aCS.Shape2()));
|
|
//
|
|
aTolF = BRep_Tool::Tolerance(aF);
|
|
aDt = 2*(aTolE + aTolF);
|
|
if (aDt > aDtMax) {
|
|
aDtMax = aDt;
|
|
}
|
|
//
|
|
// try to compute the minimal 3D step
|
|
const BRepAdaptor_Surface& aBAS = theContext->SurfaceAdaptor(aF);
|
|
Standard_Real aR = 0.;
|
|
GeomAbs_SurfaceType aSType = aBAS.GetType();
|
|
switch (aSType) {
|
|
case GeomAbs_Cylinder: {
|
|
aR = aBAS.Cylinder().Radius();
|
|
break;
|
|
}
|
|
case GeomAbs_Cone: {
|
|
gp_Lin aL(aBAS.Cone().Axis());
|
|
aR = aL.Distance(aP);
|
|
break;
|
|
}
|
|
case GeomAbs_Sphere: {
|
|
aDtMin = Max(aDtMin, 5.e-4);
|
|
aR = aBAS.Sphere().Radius();
|
|
break;
|
|
}
|
|
case GeomAbs_Torus: {
|
|
aR = aBAS.Torus().MajorRadius();
|
|
break;
|
|
}
|
|
default:
|
|
aDtMin = Max(aDtMin, 5.e-4);
|
|
break;
|
|
}
|
|
//
|
|
if (aR > 100.) {
|
|
Standard_Real d = 10*Precision::PConfusion();
|
|
aDtMin = Max(aDtMin, sqrt(d*d + 2*d*aR));
|
|
}
|
|
}
|
|
//
|
|
if (aDtMax < aDtMin) {
|
|
aDtMax = aDtMin;
|
|
}
|
|
//
|
|
// check if the computed 3D step is too big for any of the faces in the list
|
|
aIt.Initialize(aLCS);
|
|
for (; aIt.More(); aIt.Next()) {
|
|
const BOPTools_CoupleOfShape& aCS = aIt.Value();
|
|
const TopoDS_Face& aF = (*(TopoDS_Face*)(&aCS.Shape2()));
|
|
//
|
|
const BRepAdaptor_Surface& aBAS = theContext->SurfaceAdaptor(aF);
|
|
//
|
|
Standard_Real aUMin, aUMax, aVMin, aVMax;
|
|
theContext->UVBounds(aF, aUMin, aUMax, aVMin, aVMax);
|
|
//
|
|
Standard_Real aDU = aUMax - aUMin;
|
|
if (aDU > 0.) {
|
|
Standard_Real aURes = aBAS.UResolution(aDtMax);
|
|
if (2*aURes > aDU) {
|
|
break;
|
|
}
|
|
}
|
|
//
|
|
Standard_Real aDV = aVMax - aVMin;
|
|
if (aDV > 0.) {
|
|
Standard_Real aVRes = aBAS.VResolution(aDtMax);
|
|
if (2*aVRes > aDV) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
//
|
|
theSmallFaces = aIt.More();
|
|
//
|
|
return aDtMax;
|
|
}
|
|
//=======================================================================
|
|
//function : IsOpenShell
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsOpenShell(const TopoDS_Shell& aSh)
|
|
{
|
|
Standard_Boolean bRet;
|
|
Standard_Integer i, aNbE, aNbF;
|
|
TopAbs_Orientation aOrF;
|
|
TopTools_IndexedDataMapOfShapeListOfShape aMEF;
|
|
TopTools_ListIteratorOfListOfShape aItLS;
|
|
//
|
|
bRet=Standard_False;
|
|
//
|
|
TopExp::MapShapesAndAncestors(aSh, TopAbs_EDGE, TopAbs_FACE, aMEF);
|
|
//
|
|
aNbE=aMEF.Extent();
|
|
for (i=1; i<=aNbE; ++i) {
|
|
const TopoDS_Edge& aE=*((TopoDS_Edge*)&aMEF.FindKey(i));
|
|
if (BRep_Tool::Degenerated(aE)) {
|
|
continue;
|
|
}
|
|
//
|
|
aNbF=0;
|
|
const TopTools_ListOfShape& aLF=aMEF(i);
|
|
aItLS.Initialize(aLF);
|
|
for (; aItLS.More(); aItLS.Next()) {
|
|
const TopoDS_Shape& aF=aItLS.Value();
|
|
aOrF=aF.Orientation();
|
|
if (aOrF==TopAbs_INTERNAL || aOrF==TopAbs_EXTERNAL) {
|
|
continue;
|
|
}
|
|
++aNbF;
|
|
}
|
|
//
|
|
if (aNbF==1) {
|
|
bRet=!bRet; // True
|
|
break;
|
|
}
|
|
}
|
|
//
|
|
return bRet;
|
|
}
|
|
//=======================================================================
|
|
//function : IsInvertedSolid
|
|
//purpose :
|
|
//=======================================================================
|
|
Standard_Boolean BOPTools_AlgoTools::IsInvertedSolid
|
|
(const TopoDS_Solid& aSolid)
|
|
{
|
|
Standard_Real aTolS;
|
|
TopAbs_State aState;
|
|
BRepClass3d_SolidClassifier aSC(aSolid);
|
|
//
|
|
aTolS=1.e-7;
|
|
aSC.PerformInfinitePoint(aTolS);
|
|
aState=aSC.State();
|
|
return (aState==TopAbs_IN);
|
|
}
|