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0001 // Created on: 1992-05-06
0002 // Created by: Jacques GOUSSARD
0003 // Copyright (c) 1992-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016 
0017 #ifndef _IntPatch_TheIWalking_HeaderFile
0018 #define _IntPatch_TheIWalking_HeaderFile
0019 
0020 #include <Adaptor3d_Surface.hxx>
0021 #include <IntSurf_SequenceOfPathPoint.hxx>
0022 #include <math_Vector.hxx>
0023 #include <IntWalk_VectorOfWalkingData.hxx>
0024 #include <IntWalk_VectorOfInteger.hxx>
0025 #include <IntSurf_PntOn2S.hxx>
0026 #include <gp_Vec.hxx>
0027 #include <gp_Dir2d.hxx>
0028 #include <TColStd_SequenceOfInteger.hxx>
0029 #include <TColStd_DataMapOfIntegerListOfInteger.hxx>
0030 #include <IntPatch_SequenceOfIWLineOfTheIWalking.hxx>
0031 #include <IntSurf_SequenceOfInteriorPoint.hxx>
0032 #include <Standard_Integer.hxx>
0033 #include <TColStd_SequenceOfReal.hxx>
0034 #include <IntWalk_StatusDeflection.hxx>
0035 #include <Bnd_Range.hxx>
0036 
0037 class IntSurf_PathPoint;
0038 class IntSurf_PathPointTool;
0039 class IntSurf_InteriorPoint;
0040 class IntSurf_InteriorPointTool;
0041 class Adaptor3d_HSurfaceTool;
0042 class IntPatch_TheSurfFunction;
0043 class IntPatch_TheIWLineOfTheIWalking;
0044 class IntSurf_PntOn2S;
0045 class math_FunctionSetRoot;
0046 
0047 class IntPatch_TheIWalking 
0048 {
0049 public:
0050 
0051   DEFINE_STANDARD_ALLOC
0052 
0053   
0054   //! Deflection is the maximum deflection admitted between two
0055   //! consecutive points on a resulting polyline.
0056   //! Step is the maximum increment admitted between two
0057   //! consecutive points (in 2d space).
0058   //! Epsilon is the tolerance beyond which 2 points
0059   //! are confused.
0060   //! theToFillHoles is the flag defining whether possible holes
0061   //! between resulting curves are filled or not
0062   //! in case of IntPatch walking theToFillHoles is False
0063   Standard_EXPORT IntPatch_TheIWalking(const Standard_Real Epsilon, const Standard_Real Deflection, const Standard_Real Step,
0064                                        const Standard_Boolean theToFillHoles = Standard_False);
0065   
0066   //! Deflection is the maximum deflection admitted between two
0067   //! consecutive points on a resulting polyline.
0068   //! Step is the maximum increment admitted between two
0069   //! consecutive points (in 2d space).
0070   //! Epsilon is the tolerance beyond which 2 points
0071   //! are confused
0072     void SetTolerance (const Standard_Real Epsilon, const Standard_Real Deflection, const Standard_Real Step);
0073   
0074   //! Searches a set of polylines starting on a point of Pnts1
0075   //! or Pnts2.
0076   //! Each point on a resulting polyline verifies F(u,v)=0
0077   Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, IntPatch_TheSurfFunction& Func, const Handle(Adaptor3d_Surface)& S, const Standard_Boolean Reversed = Standard_False);
0078   
0079   //! Searches a set of polylines starting on a point of Pnts1.
0080   //! Each point on a resulting polyline verifies F(u,v)=0
0081   Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, IntPatch_TheSurfFunction& Func, const Handle(Adaptor3d_Surface)& S, const Standard_Boolean Reversed = Standard_False);
0082   
0083   //! Returns true if the calculus was successful.
0084     Standard_Boolean IsDone() const;
0085   
0086   //! Returns the number of resulting polylines.
0087   //! An exception is raised if IsDone returns False.
0088     Standard_Integer NbLines() const;
0089   
0090   //! Returns the polyline of range Index.
0091   //! An exception is raised if IsDone is False.
0092   //! An exception is raised if Index<=0 or Index>NbLines.
0093     const Handle(IntPatch_TheIWLineOfTheIWalking)& Value (const Standard_Integer Index) const;
0094   
0095   //! Returns the number of points belonging to Pnts on which no
0096   //! line starts or ends.
0097   //! An exception is raised if IsDone returns False.
0098     Standard_Integer NbSinglePnts() const;
0099   
0100   //! Returns the point of range Index .
0101   //! An exception is raised if IsDone returns False.
0102   //! An exception is raised if Index<=0 or
0103   //! Index > NbSinglePnts.
0104     const IntSurf_PathPoint& SinglePnt (const Standard_Integer Index) const;
0105 
0106 
0107 
0108 
0109 protected:
0110 
0111   
0112   Standard_EXPORT Standard_Boolean Cadrage (math_Vector& BornInf, math_Vector& BornSup, math_Vector& UVap, Standard_Real& Step, const Standard_Integer StepSign) const;
0113   
0114   Standard_EXPORT Standard_Boolean TestArretPassage (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, IntPatch_TheSurfFunction& Section, math_Vector& UV, Standard_Integer& Irang);
0115   
0116   Standard_EXPORT Standard_Boolean TestArretPassage (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const math_Vector& UV, const Standard_Integer Index, Standard_Integer& Irang);
0117   
0118   Standard_EXPORT Standard_Boolean TestArretAjout (IntPatch_TheSurfFunction& Section, math_Vector& UV, Standard_Integer& Irang, IntSurf_PntOn2S& PSol);
0119   
0120   Standard_EXPORT void FillPntsInHoles (IntPatch_TheSurfFunction& Section,
0121                                         TColStd_SequenceOfInteger& CopySeqAlone,
0122                                         IntSurf_SequenceOfInteriorPoint& PntsInHoles);
0123   
0124   Standard_EXPORT void TestArretCadre (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const Handle(IntPatch_TheIWLineOfTheIWalking)& Line, IntPatch_TheSurfFunction& Section, math_Vector& UV, Standard_Integer& Irang);
0125   
0126   Standard_EXPORT IntWalk_StatusDeflection TestDeflection (IntPatch_TheSurfFunction& Section, const Standard_Boolean Finished, const math_Vector& UV, const IntWalk_StatusDeflection StatusPrecedent, Standard_Integer& NbDivision, Standard_Real& Step, const Standard_Integer StepSign);
0127   
0128   Standard_EXPORT void ComputeOpenLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, IntPatch_TheSurfFunction& Section, Standard_Boolean& Rajout);
0129   
0130   Standard_EXPORT void OpenLine (const Standard_Integer N, const IntSurf_PntOn2S& Psol, const IntSurf_SequenceOfPathPoint& Pnts1, IntPatch_TheSurfFunction& Section, const Handle(IntPatch_TheIWLineOfTheIWalking)& Line);
0131   
0132   Standard_EXPORT Standard_Boolean IsValidEndPoint (const Standard_Integer IndOfPoint, const Standard_Integer IndOfLine);
0133   
0134   Standard_EXPORT void RemoveTwoEndPoints (const Standard_Integer IndOfPoint);
0135   
0136   Standard_EXPORT Standard_Boolean IsPointOnLine (const gp_Pnt2d& theP2d, const Standard_Integer Irang);
0137   
0138   Standard_EXPORT void ComputeCloseLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, IntPatch_TheSurfFunction& Section, Standard_Boolean& Rajout);
0139   
0140   Standard_EXPORT void AddPointInCurrentLine (const Standard_Integer N, const IntSurf_PathPoint& PathPnt, const Handle(IntPatch_TheIWLineOfTheIWalking)& CurrentLine) const;
0141   
0142   Standard_EXPORT void MakeWalkingPoint (const Standard_Integer Case, const Standard_Real U, const Standard_Real V, IntPatch_TheSurfFunction& Section, IntSurf_PntOn2S& Psol);
0143   
0144   //! Clears up internal containers
0145   Standard_EXPORT void Clear();
0146 
0147   //! Returns TRUE if thePOn2S is in one of existing lines.
0148   Standard_EXPORT Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S& thePOn2S,
0149                                                  const math_Vector& theInfBounds,
0150                                                  const math_Vector& theSupBounds,
0151                                                  math_FunctionSetRoot& theSolver,
0152                                                  IntPatch_TheSurfFunction& theFunc);
0153 
0154 
0155 
0156 private:
0157 
0158 
0159 
0160   Standard_Boolean done;
0161   IntSurf_SequenceOfPathPoint seqSingle;
0162   Standard_Real fleche;
0163   Standard_Real pas;
0164   math_Vector tolerance;
0165   Standard_Real epsilon;
0166   Standard_Boolean reversed;
0167   IntWalk_VectorOfWalkingData wd1;
0168   IntWalk_VectorOfWalkingData wd2;
0169   IntWalk_VectorOfInteger nbMultiplicities;
0170   Bnd_Range mySRangeU; // Estimated U-range for section curve
0171   Bnd_Range mySRangeV; // Estimated V-range for section curve
0172   Standard_Real Um;
0173   Standard_Real UM;
0174   Standard_Real Vm;
0175   Standard_Real VM;
0176   IntSurf_PntOn2S previousPoint;
0177   gp_Vec previousd3d;
0178   gp_Dir2d previousd2d;
0179   TColStd_SequenceOfInteger seqAjout;
0180   TColStd_SequenceOfInteger seqAlone;
0181   TColStd_DataMapOfIntegerListOfInteger PointLineLine;
0182   IntPatch_SequenceOfIWLineOfTheIWalking lines;
0183   Standard_Boolean ToFillHoles;
0184 
0185 
0186 };
0187 
0188 #define ThePointOfPath IntSurf_PathPoint
0189 #define ThePointOfPath_hxx <IntSurf_PathPoint.hxx>
0190 #define ThePointOfPathTool IntSurf_PathPointTool
0191 #define ThePointOfPathTool_hxx <IntSurf_PathPointTool.hxx>
0192 #define ThePOPIterator IntSurf_SequenceOfPathPoint
0193 #define ThePOPIterator_hxx <IntSurf_SequenceOfPathPoint.hxx>
0194 #define ThePointOfLoop IntSurf_InteriorPoint
0195 #define ThePointOfLoop_hxx <IntSurf_InteriorPoint.hxx>
0196 #define ThePointOfLoopTool IntSurf_InteriorPointTool
0197 #define ThePointOfLoopTool_hxx <IntSurf_InteriorPointTool.hxx>
0198 #define ThePOLIterator IntSurf_SequenceOfInteriorPoint
0199 #define ThePOLIterator_hxx <IntSurf_SequenceOfInteriorPoint.hxx>
0200 #define ThePSurface Handle(Adaptor3d_Surface)
0201 #define ThePSurface_hxx <Adaptor3d_Surface.hxx>
0202 #define ThePSurfaceTool Adaptor3d_HSurfaceTool
0203 #define ThePSurfaceTool_hxx <Adaptor3d_HSurfaceTool.hxx>
0204 #define TheIWFunction IntPatch_TheSurfFunction
0205 #define TheIWFunction_hxx <IntPatch_TheSurfFunction.hxx>
0206 #define IntWalk_TheIWLine IntPatch_TheIWLineOfTheIWalking
0207 #define IntWalk_TheIWLine_hxx <IntPatch_TheIWLineOfTheIWalking.hxx>
0208 #define IntWalk_SequenceOfIWLine IntPatch_SequenceOfIWLineOfTheIWalking
0209 #define IntWalk_SequenceOfIWLine_hxx <IntPatch_SequenceOfIWLineOfTheIWalking.hxx>
0210 #define Handle_IntWalk_TheIWLine Handle(IntPatch_TheIWLineOfTheIWalking)
0211 #define IntWalk_IWalking IntPatch_TheIWalking
0212 #define IntWalk_IWalking_hxx <IntPatch_TheIWalking.hxx>
0213 
0214 #include <IntWalk_IWalking.lxx>
0215 
0216 #undef ThePointOfPath
0217 #undef ThePointOfPath_hxx
0218 #undef ThePointOfPathTool
0219 #undef ThePointOfPathTool_hxx
0220 #undef ThePOPIterator
0221 #undef ThePOPIterator_hxx
0222 #undef ThePointOfLoop
0223 #undef ThePointOfLoop_hxx
0224 #undef ThePointOfLoopTool
0225 #undef ThePointOfLoopTool_hxx
0226 #undef ThePOLIterator
0227 #undef ThePOLIterator_hxx
0228 #undef ThePSurface
0229 #undef ThePSurface_hxx
0230 #undef ThePSurfaceTool
0231 #undef ThePSurfaceTool_hxx
0232 #undef TheIWFunction
0233 #undef TheIWFunction_hxx
0234 #undef IntWalk_TheIWLine
0235 #undef IntWalk_TheIWLine_hxx
0236 #undef IntWalk_SequenceOfIWLine
0237 #undef IntWalk_SequenceOfIWLine_hxx
0238 #undef Handle_IntWalk_TheIWLine
0239 #undef IntWalk_IWalking
0240 #undef IntWalk_IWalking_hxx
0241 
0242 
0243 
0244 
0245 #endif // _IntPatch_TheIWalking_HeaderFile
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