include/opencascade/GeomInt_WLApprox.hxx

0001 // Created on: 1995-01-27
0002 // Created by: Jacques GOUSSARD
0003 // Copyright (c) 1995-1999 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 _GeomInt_WLApprox_HeaderFile
0018 #define _GeomInt_WLApprox_HeaderFile
0019
0020 #include <Adaptor3d_Surface.hxx>
0021 #include <NCollection_Vector.hxx>
0022 #include <GeomInt_TheComputeLineOfWLApprox.hxx>
0023 #include <GeomInt_TheComputeLineBezierOfWLApprox.hxx>
0024 #include <Approx_MCurvesToBSpCurve.hxx>
0025 #include <Approx_ParametrizationType.hxx>
0026
0027 class Adaptor3d_HSurfaceTool;
0028 class IntSurf_Quadric;
0029 class IntSurf_QuadricTool;
0030 class IntPatch_WLine;
0031 class GeomInt_ThePrmPrmSvSurfacesOfWLApprox;
0032 class GeomInt_TheInt2SOfThePrmPrmSvSurfacesOfWLApprox;
0033 class GeomInt_TheImpPrmSvSurfacesOfWLApprox;
0034 class GeomInt_TheZerImpFuncOfTheImpPrmSvSurfacesOfWLApprox;
0035 class GeomInt_TheMultiLineOfWLApprox;
0036 class GeomInt_TheMultiLineToolOfWLApprox;
0037 class GeomInt_TheComputeLineOfWLApprox;
0038 class GeomInt_MyBSplGradientOfTheComputeLineOfWLApprox;
0039 class GeomInt_MyGradientbisOfTheComputeLineOfWLApprox;
0040 class GeomInt_TheComputeLineBezierOfWLApprox;
0041 class GeomInt_MyGradientOfTheComputeLineBezierOfWLApprox;
0042 class AppParCurves_MultiBSpCurve;
0043
0044 class GeomInt_WLApprox
0045 {
0046 private:
0047   struct Approx_Data
0048   {
0049     Approx_Data () : myBezierApprox (Standard_True),
0050       Xo (0.0), Yo (0.0), Zo (0.0),
0051       U1o (0.0), V1o (0.0), U2o (0.0), V2o (0.0),
0052       ApproxXYZ (Standard_True),
0053       ApproxU1V1 (Standard_True),
0054       ApproxU2V2 (Standard_True),
0055       indicemin (0), indicemax (0),
0056       myNbPntMax (30), parametrization (Approx_ChordLength)
0057     {
0058     }
0059
0060     Standard_Boolean myBezierApprox;
0061     Standard_Real  Xo, Yo, Zo, U1o, V1o, U2o, V2o;
0062     Standard_Boolean ApproxXYZ, ApproxU1V1, ApproxU2V2;
0063     Standard_Integer indicemin, indicemax, myNbPntMax;
0064     Approx_ParametrizationType parametrization;
0065   };
0066
0067 public:
0068
0069   DEFINE_STANDARD_ALLOC
0070
0071
0072   Standard_EXPORT GeomInt_WLApprox();
0073
0074   Standard_EXPORT void Perform (const Handle(Adaptor3d_Surface)& Surf1, const Handle(Adaptor3d_Surface)& Surf2, const Handle(IntPatch_WLine)& aLine, const Standard_Boolean ApproxXYZ = Standard_True, const Standard_Boolean ApproxU1V1 = Standard_True, const Standard_Boolean ApproxU2V2 = Standard_True, const Standard_Integer indicemin = 0, const Standard_Integer indicemax = 0);
0075
0076   Standard_EXPORT void Perform (const Handle(IntPatch_WLine)& aLine, const Standard_Boolean ApproxXYZ = Standard_True, const Standard_Boolean ApproxU1V1 = Standard_True, const Standard_Boolean ApproxU2V2 = Standard_True, const Standard_Integer indicemin = 0, const Standard_Integer indicemax = 0);
0077
0078   Standard_EXPORT
0079       void SetParameters (const Standard_Real Tol3d, const Standard_Real Tol2d,
0080                           const Standard_Integer DegMin,
0081                           const Standard_Integer DegMax,
0082                           const Standard_Integer NbIterMax,
0083                           const Standard_Integer NbPntMax = 30,
0084                           const Standard_Boolean ApproxWithTangency = Standard_True,
0085                           const Approx_ParametrizationType
0086                                           Parametrization = Approx_ChordLength);
0087   Standard_EXPORT void Perform();
0088
0089   Standard_EXPORT Standard_Real TolReached3d() const;
0090
0091   Standard_EXPORT Standard_Real TolReached2d() const;
0092
0093   Standard_EXPORT Standard_Boolean IsDone() const;
0094
0095   Standard_EXPORT Standard_Integer NbMultiCurves() const;
0096
0097   Standard_EXPORT const AppParCurves_MultiBSpCurve& Value (const Standard_Integer Index) const;
0098
0099   Standard_EXPORT static void Parameters(const GeomInt_TheMultiLineOfWLApprox& Line,
0100     const Standard_Integer firstP,
0101     const Standard_Integer lastP,
0102     const Approx_ParametrizationType Par,
0103     math_Vector& TheParameters);
0104
0105
0106 protected:
0107
0108
0109
0110
0111
0112 private:
0113   Standard_EXPORT void Perform (const IntSurf_Quadric& Surf1, const Handle(Adaptor3d_Surface)& Surf2, const Handle(IntPatch_WLine)& aLine, const Standard_Boolean ApproxXYZ, const Standard_Boolean ApproxU1V1, const Standard_Boolean ApproxU2V2, const Standard_Integer indicemin, const Standard_Integer indicemax, const Standard_Boolean isTheQuadFirst);
0114
0115   Standard_EXPORT void UpdateTolReached();
0116
0117   //! Fill data structure for intersection approximation.
0118   Standard_EXPORT void fillData(const Handle(IntPatch_WLine)& theLine);
0119
0120   //! Prepare data structure for further computations.
0121   Standard_EXPORT void prepareDS(const Standard_Boolean theApproxXYZ,
0122                                  const Standard_Boolean theApproxU1V1,
0123                                  const Standard_Boolean theApproxU2V2,
0124                                  const Standard_Integer indicemin,
0125                                  const Standard_Integer indicemax);
0126
0127   //! Build knot sequence.
0128   Standard_EXPORT void buildKnots(const Handle(IntPatch_WLine)& theline,
0129                                   const Standard_Address thePtrSVSurf);
0130
0131   //! Build curve.
0132   Standard_EXPORT void buildCurve(const Handle(IntPatch_WLine)& theline,
0133                                   const Standard_Address thePtrSVSurf);
0134
0135   GeomInt_TheComputeLineOfWLApprox myComputeLine;
0136   GeomInt_TheComputeLineBezierOfWLApprox myComputeLineBezier;
0137   Approx_MCurvesToBSpCurve myBezToBSpl;
0138   Standard_Boolean myWithTangency;
0139   Standard_Real myTol3d;
0140   Standard_Real myTol2d;
0141   Standard_Integer myDegMin;
0142   Standard_Integer myDegMax;
0143   Standard_Integer myNbIterMax;
0144   Standard_Real myTolReached3d;
0145   Standard_Real myTolReached2d;
0146   Approx_Data myData;
0147   NCollection_Vector<Standard_Integer> myKnots;
0148
0149 };
0150
0151
0152
0153
0154
0155
0156
0157 #endif // _GeomInt_WLApprox_HeaderFile