include/opencascade/BRep_GCurve.hxx

0001 // Created on: 1995-03-09
0002 // Created by: Laurent PAINNOT
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 _BRep_GCurve_HeaderFile
0018 #define _BRep_GCurve_HeaderFile
0019
0020 #include <Standard.hxx>
0021
0022 #include <Standard_Real.hxx>
0023 #include <BRep_CurveRepresentation.hxx>
0024 class TopLoc_Location;
0025 class gp_Pnt;
0026
0027 //! Root class for the geometric curves
0028 //! representation. Contains a range.
0029 //! Contains a first and a last parameter.
0030 class BRep_GCurve : public BRep_CurveRepresentation
0031 {
0032
0033 public:
0034   void SetRange(const double First, const double Last);
0035
0036   void Range(double& First, double& Last) const;
0037
0038   double First() const;
0039
0040   double Last() const;
0041
0042   void First(const double F);
0043
0044   void Last(const double L);
0045
0046   //! Computes the point at parameter U.
0047   Standard_EXPORT virtual void D0(const double U, gp_Pnt& P) const = 0;
0048
0049   //! Recomputes any derived data after a modification.
0050   //! This is called when the range is modified.
0051   Standard_EXPORT virtual void Update();
0052
0053   //! Dumps the content of me into the stream
0054   Standard_EXPORT void DumpJson(Standard_OStream& theOStream, int theDepth = -1) const override;
0055
0056   DEFINE_STANDARD_RTTIEXT(BRep_GCurve, BRep_CurveRepresentation)
0057
0058 protected:
0059   Standard_EXPORT BRep_GCurve(const TopLoc_Location& L, const double First, const double Last);
0060
0061 private:
0062   double myFirst;
0063   double myLast;
0064 };
0065
0066 #include <BRep_GCurve.lxx>
0067
0068 #endif // _BRep_GCurve_HeaderFile