include/opencascade/MAT2d_CutCurve.hxx

0001 // Created on: 1994-09-23
0002 // Created by: Yves FRICAUD
0003 // Copyright (c) 1994-1999 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 _MAT2d_CutCurve_HeaderFile
0018 #define _MAT2d_CutCurve_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Geom2d_Curve.hxx>
0025 #include <NCollection_Sequence.hxx>
0026 #include <MAT_Side.hxx>
0027 #include <Standard_Integer.hxx>
0028 class Geom2d_Curve;
0029 class Geom2d_TrimmedCurve;
0030
0031 //! Cuts a curve at the extremas of curvature
0032 //! and at the inflections. Constructs a trimmed
0033 //! Curve for each interval.
0034 class MAT2d_CutCurve
0035 {
0036 public:
0037   DEFINE_STANDARD_ALLOC
0038
0039   Standard_EXPORT MAT2d_CutCurve();
0040
0041   Standard_EXPORT MAT2d_CutCurve(const occ::handle<Geom2d_Curve>& C);
0042
0043   //! Cuts a curve at the extremas of curvature
0044   //! and at the inflections.
0045   Standard_EXPORT void Perform(const occ::handle<Geom2d_Curve>& C);
0046
0047   //! Cuts a curve at the inflections, and at the extremas
0048   //! of curvature where the concavity is on <aSide>.
0049   Standard_EXPORT void Perform(const occ::handle<Geom2d_Curve>& C, const MAT_Side aSide);
0050
0051   //! Cuts a curve at the inflections.
0052   Standard_EXPORT void PerformInf(const occ::handle<Geom2d_Curve>& C);
0053
0054   //! Returns True if the curve is not cut.
0055   Standard_EXPORT bool UnModified() const;
0056
0057   //! Returns the number of curves.
0058   //! it's always greatest than 2.
0059   //!
0060   //! raises if the Curve is UnModified;
0061   Standard_EXPORT int NbCurves() const;
0062
0063   //! Returns the Indexth curve.
0064   //! raises if Index not in the range [1,NbCurves()]
0065   Standard_EXPORT occ::handle<Geom2d_TrimmedCurve> Value(const int Index) const;
0066
0067 private:
0068   NCollection_Sequence<occ::handle<Geom2d_Curve>> theCurves;
0069 };
0070
0071 #endif // _MAT2d_CutCurve_HeaderFile