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 <TColGeom2d_SequenceOfCurve.hxx>
0025 #include <MAT_Side.hxx>
0026 #include <Standard_Integer.hxx>
0027 class Geom2d_Curve;
0028 class Geom2d_TrimmedCurve;
0029
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
0038   DEFINE_STANDARD_ALLOC
0039
0040
0041   Standard_EXPORT MAT2d_CutCurve();
0042
0043   Standard_EXPORT MAT2d_CutCurve(const Handle(Geom2d_Curve)& C);
0044
0045   //! Cuts a curve at the extremas of curvature
0046   //! and at the inflections.
0047   Standard_EXPORT void Perform (const Handle(Geom2d_Curve)& C);
0048
0049   //! Cuts a curve at the inflections, and at the extremas
0050   //! of curvature where the concavity is on <aSide>.
0051   Standard_EXPORT void Perform (const Handle(Geom2d_Curve)& C, const MAT_Side aSide);
0052
0053   //! Cuts a curve at the inflections.
0054   Standard_EXPORT void PerformInf (const Handle(Geom2d_Curve)& C);
0055
0056   //! Returns True if the curve is not cut.
0057   Standard_EXPORT Standard_Boolean UnModified() const;
0058
0059   //! Returns the number of curves.
0060   //! it's always greatest than 2.
0061   //!
0062   //! raises if the Curve is UnModified;
0063   Standard_EXPORT Standard_Integer NbCurves() const;
0064
0065   //! Returns the Indexth curve.
0066   //! raises if Index not in the range [1,NbCurves()]
0067   Standard_EXPORT Handle(Geom2d_TrimmedCurve) Value (const Standard_Integer Index) const;
0068
0069
0070
0071
0072 protected:
0073
0074
0075
0076
0077
0078 private:
0079
0080
0081
0082   TColGeom2d_SequenceOfCurve theCurves;
0083
0084
0085 };
0086
0087
0088
0089
0090
0091
0092
0093 #endif // _MAT2d_CutCurve_HeaderFile