1 // Created on: 1995-06-06
2 // Created by: Jean Yves LEBEY
3 // Copyright (c) 1995-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepApprox_Approx_HeaderFile
18 #define _BRepApprox_Approx_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <NCollection_Vector.hxx>
25 #include <BRepApprox_TheComputeLineOfApprox.hxx>
26 #include <BRepApprox_TheComputeLineBezierOfApprox.hxx>
27 #include <Approx_MCurvesToBSpCurve.hxx>
28 #include <Standard_Boolean.hxx>
29 #include <Standard_Real.hxx>
30 #include <Standard_Integer.hxx>
31 #include <Approx_ParametrizationType.hxx>
32 class Standard_OutOfRange;
33 class StdFail_NotDone;
34 class BRepAdaptor_Surface;
35 class BRepApprox_SurfaceTool;
36 class IntSurf_Quadric;
37 class IntSurf_QuadricTool;
38 class BRepApprox_ApproxLine;
39 class BRepApprox_ThePrmPrmSvSurfacesOfApprox;
40 class BRepApprox_TheInt2SOfThePrmPrmSvSurfacesOfApprox;
41 class BRepApprox_TheImpPrmSvSurfacesOfApprox;
42 class BRepApprox_TheZerImpFuncOfTheImpPrmSvSurfacesOfApprox;
43 class BRepApprox_TheMultiLineOfApprox;
44 class BRepApprox_TheMultiLineToolOfApprox;
45 class BRepApprox_TheComputeLineOfApprox;
46 class BRepApprox_MyBSplGradientOfTheComputeLineOfApprox;
47 class BRepApprox_MyGradientbisOfTheComputeLineOfApprox;
48 class BRepApprox_TheComputeLineBezierOfApprox;
49 class BRepApprox_MyGradientOfTheComputeLineBezierOfApprox;
50 class AppParCurves_MultiBSpCurve;
54 Approx_Data() : myBezierApprox(Standard_True),
55 Xo(0.0), Yo(0.0), Zo(0.0),
56 U1o(0.0), V1o(0.0), U2o(0.0), V2o(0.0),
57 ApproxXYZ(Standard_True),
58 ApproxU1V1(Standard_True),
59 ApproxU2V2(Standard_True),
60 indicemin(0), indicemax(0),
61 myNbPntMax(30), parametrization(Approx_ChordLength)
65 Standard_Boolean myBezierApprox;
66 Standard_Real Xo, Yo, Zo, U1o, V1o, U2o, V2o;
67 Standard_Boolean ApproxXYZ, ApproxU1V1, ApproxU2V2;
68 Standard_Integer indicemin, indicemax, myNbPntMax;
69 Approx_ParametrizationType parametrization;
72 class BRepApprox_Approx
79 Standard_EXPORT BRepApprox_Approx();
81 Standard_EXPORT void Perform (const BRepAdaptor_Surface& Surf1, const BRepAdaptor_Surface& Surf2, const Handle(BRepApprox_ApproxLine)& 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);
83 Standard_EXPORT void Perform (const Handle(BRepApprox_ApproxLine)& 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);
86 void SetParameters (const Standard_Real Tol3d, const Standard_Real Tol2d,
87 const Standard_Integer DegMin,
88 const Standard_Integer DegMax,
89 const Standard_Integer NbIterMax,
90 const Standard_Integer NbPntMax = 30,
91 const Standard_Boolean ApproxWithTangency = Standard_True,
92 const Approx_ParametrizationType
93 Parametrization = Approx_ChordLength);
95 Standard_EXPORT void Perform();
97 Standard_EXPORT Standard_Real TolReached3d() const;
99 Standard_EXPORT Standard_Real TolReached2d() const;
101 Standard_EXPORT Standard_Boolean IsDone() const;
103 Standard_EXPORT Standard_Integer NbMultiCurves() const;
105 Standard_EXPORT const AppParCurves_MultiBSpCurve& Value (const Standard_Integer Index) const;
117 Standard_EXPORT void Perform (const IntSurf_Quadric& Surf1, const BRepAdaptor_Surface& Surf2, const Handle(BRepApprox_ApproxLine)& 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);
119 Standard_EXPORT void UpdateTolReached();
121 //! Fill data structure for intersection approximation.
122 Standard_EXPORT void fillData(const Handle(BRepApprox_ApproxLine)& theLine);
124 //! Prepare data structure for further computations.
125 Standard_EXPORT void prepareDS(const Standard_Boolean theApproxXYZ,
126 const Standard_Boolean theApproxU1V1,
127 const Standard_Boolean theApproxU2V2,
128 const Standard_Integer indicemin,
129 const Standard_Integer indicemax);
131 //! Build knot sequence.
132 Standard_EXPORT void buildKnots(const Handle(BRepApprox_ApproxLine)& theline,
133 const Standard_Address thePtrSVSurf);
136 Standard_EXPORT void buildCurve(const Handle(BRepApprox_ApproxLine)& theline,
137 const Standard_Address thePtrSVSurf);
139 BRepApprox_TheComputeLineOfApprox myComputeLine;
140 BRepApprox_TheComputeLineBezierOfApprox myComputeLineBezier;
141 Approx_MCurvesToBSpCurve myBezToBSpl;
142 Standard_Boolean myWithTangency;
143 Standard_Real myTol3d;
144 Standard_Real myTol2d;
145 Standard_Integer myDegMin;
146 Standard_Integer myDegMax;
147 Standard_Integer myNbIterMax;
148 Standard_Real myTolReached3d;
149 Standard_Real myTolReached2d;
151 NCollection_Vector<Standard_Integer> myKnots;
161 #endif // _BRepApprox_Approx_HeaderFile