include/opencascade/Extrema_ExtPExtS.hxx

0001 // Created on: 1999-09-16
0002 // Created by: Edward AGAPOV
0003 // Copyright (c) 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 _Extrema_ExtPExtS_HeaderFile
0018 #define _Extrema_ExtPExtS_HeaderFile
0019
0020 #include <Extrema_GenExtPS.hxx>
0021 #include <Extrema_FuncPSNorm.hxx>
0022 #include <Extrema_POnSurf.hxx>
0023 #include <GeomAdaptor_SurfaceOfLinearExtrusion.hxx>
0024 #include <gp_Ax2.hxx>
0025 #include <gp_Vec.hxx>
0026
0027 DEFINE_STANDARD_HANDLE(Extrema_ExtPExtS, Standard_Transient)
0028
0029 //! It calculates all the extremum (minimum and
0030 //! maximum) distances between a point and a linear
0031 //! extrusion surface.
0032 class Extrema_ExtPExtS : public Standard_Transient
0033 {
0034
0035 public:
0036
0037
0038   Standard_EXPORT Extrema_ExtPExtS();
0039
0040   //! It calculates all the distances between a point
0041   //! from gp and a Surface.
0042   Standard_EXPORT Extrema_ExtPExtS(const gp_Pnt& P, const Handle(GeomAdaptor_SurfaceOfLinearExtrusion)& S, const Standard_Real Umin, const Standard_Real Usup, const Standard_Real Vmin, const Standard_Real Vsup, const Standard_Real TolU, const Standard_Real TolV);
0043
0044   //! It calculates all the distances between a point
0045   //! from gp and a Surface.
0046   Standard_EXPORT Extrema_ExtPExtS(const gp_Pnt& P, const Handle(GeomAdaptor_SurfaceOfLinearExtrusion)& S, const Standard_Real TolU, const Standard_Real TolV);
0047
0048   //! Initializes the fields of the algorithm.
0049   Standard_EXPORT void Initialize (const Handle(GeomAdaptor_SurfaceOfLinearExtrusion)& S, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup, const Standard_Real TolU, const Standard_Real TolV);
0050
0051   Standard_EXPORT void Perform (const gp_Pnt& P);
0052
0053   //! Returns True if the distances are found.
0054   Standard_EXPORT Standard_Boolean IsDone() const;
0055
0056   //! Returns the number of extremum distances.
0057   Standard_EXPORT Standard_Integer NbExt() const;
0058
0059   //! Returns the value of the Nth resulting square distance.
0060   Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N) const;
0061
0062   //! Returns the point of the Nth resulting distance.
0063   Standard_EXPORT const Extrema_POnSurf& Point (const Standard_Integer N) const;
0064
0065
0066
0067
0068   DEFINE_STANDARD_RTTIEXT(Extrema_ExtPExtS,Standard_Transient)
0069
0070 protected:
0071
0072
0073
0074
0075 private:
0076
0077
0078   Standard_EXPORT void MakePreciser (Standard_Real& U, const gp_Pnt& P, const Standard_Boolean isMin, const gp_Ax2& OrtogSection) const;
0079
0080   Standard_Real myuinf;
0081   Standard_Real myusup;
0082   Standard_Real mytolu;
0083   Standard_Real myvinf;
0084   Standard_Real myvsup;
0085   Standard_Real mytolv;
0086   Extrema_FuncPSNorm myF;
0087   Handle(Adaptor3d_Curve) myC;
0088   Handle(GeomAdaptor_SurfaceOfLinearExtrusion) myS;
0089   gp_Vec myDirection;
0090   gp_Ax2 myPosition;
0091   Extrema_GenExtPS myExtPS;
0092   Standard_Boolean myIsAnalyticallyComputable;
0093   Standard_Boolean myDone;
0094   Standard_Integer myNbExt;
0095   Standard_Real mySqDist[4];
0096   Extrema_POnSurf myPoint[4];
0097
0098
0099 };
0100
0101
0102
0103
0104
0105
0106
0107 #endif // _Extrema_ExtPExtS_HeaderFile