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80d55adf7c
When checking if the split edge is oriented as the original one (BOPTools_AlgoTools::IsSplitToReverse()) the tangent vectors should be computed for both edges at the same point. This point is taken on the split edge and projected on the original edge. The fix is intended to ensuring that the reference point will be taken inside the valid range of the split edge (i.e. not covered by the tolerance spheres of its bounding vertices) and the projection of this point on the original edge will be successful. Moreover, several sampling points are now taken on the split edge and processed until first valid point is found. If requested (by a not null pointer) all *BOPTools_AlgoTools::IsSplitToReverse()* methods are now return the error status of the check. Before using the returned flag, the calling program should check this error status. For successful check the error status should be equal to zero. New warning *BOPAlgo_AlertUnableToOrientTheShape* is now returned in the algorithms in Boolean component in case the check for correct shape orientation failed. Test case for the issue.
208 lines
11 KiB
C++
208 lines
11 KiB
C++
// Created by: Peter KURNEV
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _BOPTools_AlgoTools2D_HeaderFile
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#define _BOPTools_AlgoTools2D_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Boolean.hxx>
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#include <Standard_Real.hxx>
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#include <Standard_Integer.hxx>
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class TopoDS_Edge;
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class TopoDS_Face;
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class gp_Vec;
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class Geom2d_Curve;
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class Geom_Curve;
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class BRepAdaptor_Surface;
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class ProjLib_ProjectedCurve;
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class IntTools_Context;
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//! The class contains handy static functions
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//! dealing with the topology
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//! This is the copy of the BOPTools_AlgoTools2D.cdl
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class BOPTools_AlgoTools2D
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Compute P-Curve for the edge <aE> on the face <aF>.<br>
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//! Raises exception Standard_ConstructionError if projection algorithm fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void BuildPCurveForEdgeOnFace(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Compute tangent for the edge <aE> [in 3D] at parameter <aT>
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Standard_EXPORT static Standard_Boolean EdgeTangent(const TopoDS_Edge& anE,
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const Standard_Real aT,
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gp_Vec& Tau);
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//! Compute surface parameters <U,V> of the face <aF>
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//! for the point from the edge <aE> at parameter <aT>.<br>
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//! If <aE> has't pcurve on surface, algorithm tries to get it by
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//! projection and can
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//! raise exception Standard_ConstructionError if projection algorithm fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void PointOnSurface(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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const Standard_Real aT,
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Standard_Real& U,
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Standard_Real& V,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Get P-Curve <aC> for the edge <aE> on surface <aF> .<br>
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//! If the P-Curve does not exist, build it using Make2D().<br>
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//! [aToler] - reached tolerance
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//! Raises exception Standard_ConstructionError if algorithm Make2D() fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void CurveOnSurface(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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Handle(Geom2d_Curve)& aC,
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Standard_Real& aToler,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Get P-Curve <aC> for the edge <aE> on surface <aF> .<br>
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//! If the P-Curve does not exist, build it using Make2D().<br>
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//! [aFirst, aLast] - range of the P-Curve<br>
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//! [aToler] - reached tolerance<br>
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//! Raises exception Standard_ConstructionError if algorithm Make2D() fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void CurveOnSurface(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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Handle(Geom2d_Curve)& aC,
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Standard_Real& aFirst,
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Standard_Real& aLast,
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Standard_Real& aToler,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Returns TRUE if the edge <aE> has P-Curve <aC>
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//! on surface <aF> .
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//! [aFirst, aLast] - range of the P-Curve
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//! [aToler] - reached tolerance
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//! If the P-Curve does not exist, aC.IsNull()=TRUE.
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Standard_EXPORT static Standard_Boolean HasCurveOnSurface(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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Handle(Geom2d_Curve)& aC,
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Standard_Real& aFirst,
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Standard_Real& aLast,
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Standard_Real& aToler);
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//! Returns TRUE if the edge <aE> has P-Curve <aC>
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//! on surface <aF> .
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//! If the P-Curve does not exist, aC.IsNull()=TRUE.
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Standard_EXPORT static Standard_Boolean HasCurveOnSurface(const TopoDS_Edge& aE,
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const TopoDS_Face& aF);
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//! Adjust P-Curve <theC2D> (3D-curve <theC3D>) on surface of the face <theF>.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void AdjustPCurveOnFace(const TopoDS_Face& theF,
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const Handle(Geom_Curve)& theC3D,
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const Handle(Geom2d_Curve)& theC2D,
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Handle(Geom2d_Curve)& theC2DA,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Adjust P-Curve <aC2D> (3D-curve <C3D>) on surface <aF> .<br>
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//! [aT1, aT2] - range to adjust<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void AdjustPCurveOnFace(const TopoDS_Face& theF,
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const Standard_Real theFirst,
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const Standard_Real theLast,
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const Handle(Geom2d_Curve)& theC2D,
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Handle(Geom2d_Curve)& theC2DA,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Adjust P-Curve <aC2D> (3D-curve <C3D>) on surface <aF> .
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//! [aT1, aT2] - range to adjust
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Standard_EXPORT static void AdjustPCurveOnSurf(const BRepAdaptor_Surface& aF,
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const Standard_Real aT1,
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const Standard_Real aT2,
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const Handle(Geom2d_Curve)& aC2D,
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Handle(Geom2d_Curve)& aC2DA);
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//! Compute intermediate value in between [aFirst, aLast] .
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Standard_EXPORT static Standard_Real IntermediatePoint(const Standard_Real aFirst,
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const Standard_Real aLast);
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//! Compute intermediate value of parameter for the edge <anE>.
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Standard_EXPORT static Standard_Real IntermediatePoint(const TopoDS_Edge& anE);
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//! Make P-Curve <aC> for the edge <aE> on surface <aF> .<br>
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//! [aFirst, aLast] - range of the P-Curve<br>
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//! [aToler] - reached tolerance<br>
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//! Raises exception Standard_ConstructionError if algorithm fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void Make2D(const TopoDS_Edge& aE,
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const TopoDS_Face& aF,
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Handle(Geom2d_Curve)& aC,
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Standard_Real& aFirst,
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Standard_Real& aLast,
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Standard_Real& aToler,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Make P-Curve <aC> for the 3D-curve <C3D> on surface <aF> .<br>
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//! [aToler] - reached tolerance<br>
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//! Raises exception Standard_ConstructionError if projection algorithm fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void MakePCurveOnFace(const TopoDS_Face& aF,
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const Handle(Geom_Curve)& C3D,
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Handle(Geom2d_Curve)& aC,
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Standard_Real& aToler,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Make P-Curve <aC> for the 3D-curve <C3D> on surface <aF> .<br>
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//! [aT1, aT2] - range to build<br>
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//! [aToler] - reached tolerance<br>
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//! Raises exception Standard_ConstructionError if projection algorithm fails.<br>
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//! <theContext> - storage for caching the geometrical tools
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Standard_EXPORT static void MakePCurveOnFace(const TopoDS_Face& aF,
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const Handle(Geom_Curve)& C3D,
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const Standard_Real aT1,
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const Standard_Real aT2,
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Handle(Geom2d_Curve)& aC,
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Standard_Real& aToler,
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const Handle(IntTools_Context)& theContext = Handle(IntTools_Context)());
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//! Attach P-Curve from the edge <aEold> on surface <aF>
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//! to the edge <aEnew>
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//! Returns 0 in case of success
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Standard_EXPORT static Standard_Integer AttachExistingPCurve(const TopoDS_Edge& aEold,
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const TopoDS_Edge& aEnew,
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const TopoDS_Face& aF,
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const Handle(IntTools_Context)& aCtx);
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//! Checks if CurveOnSurface of theE on theF matches with isoline of theF surface.
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//! Sets corresponding values for isTheUIso and isTheVIso variables.
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//! ATTENTION!!!
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//! This method is based on comparation between direction of
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//! surface (which theF is based on) iso-lines and the direction
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//! of the edge p-curve (on theF) in middle-point of the p-curve.
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//! This method should be used carefully
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//! (e.g. BRep_Tool::IsClosed(...) together) in order to
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//! avoid false classification some p-curves as isoline (e.g. circle
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//! on a plane).
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Standard_EXPORT static void IsEdgeIsoline(const TopoDS_Edge& theE,
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const TopoDS_Face& theF,
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Standard_Boolean& isTheUIso,
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Standard_Boolean& isTheVIso);
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};
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#endif // _BOPTools_AlgoTools2D_HeaderFile
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