include/opencascade/ShapeCustom_Surface.hxx

0001 // Created on: 1998-06-03
0002 // Created by: data exchange team
0003 // Copyright (c) 1998-1999 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 _ShapeCustom_Surface_HeaderFile
0018 #define _ShapeCustom_Surface_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Standard_Real.hxx>
0025 #include <Standard_Boolean.hxx>
0026 class Geom_Surface;
0027
0028
0029 //! Converts a surface to the analytical form with given
0030 //! precision. Conversion is done only the surface is bspline
0031 //! of bezier and this can be approximated by some analytical
0032 //! surface with that precision.
0033 class ShapeCustom_Surface
0034 {
0035 public:
0036
0037   DEFINE_STANDARD_ALLOC
0038
0039
0040   Standard_EXPORT ShapeCustom_Surface();
0041
0042   Standard_EXPORT ShapeCustom_Surface(const Handle(Geom_Surface)& S);
0043
0044   Standard_EXPORT void Init (const Handle(Geom_Surface)& S);
0045
0046   //! Returns maximal deviation of converted surface from the original
0047   //! one computed by last call to ConvertToAnalytical
0048     Standard_Real Gap() const;
0049
0050   //! Tries to convert the Surface to an Analytic form
0051   //! Returns the result
0052   //! Works only if the Surface is BSpline or Bezier.
0053   //! Else, or in case of failure, returns a Null Handle
0054   //!
0055   //! If <substitute> is True, the new surface replaces the actual
0056   //! one in <me>
0057   //!
0058   //! It works by analysing the case which can apply, creating the
0059   //! corresponding analytic surface, then checking coincidence
0060   //! Warning: Parameter laws are not kept, hence PCurves should be redone
0061   Standard_EXPORT Handle(Geom_Surface) ConvertToAnalytical (const Standard_Real tol, const Standard_Boolean substitute);
0062
0063   //! Tries to convert the Surface to the Periodic form
0064   //! Returns the resulting surface
0065   //! Works only if the Surface is BSpline and is closed with
0066   //! Precision::Confusion()
0067   //! Else, or in case of failure, returns a Null Handle
0068   Standard_EXPORT Handle(Geom_Surface) ConvertToPeriodic (const Standard_Boolean substitute, const Standard_Real preci = -1);
0069
0070
0071
0072
0073 protected:
0074
0075
0076
0077
0078
0079 private:
0080
0081
0082
0083   Handle(Geom_Surface) mySurf;
0084   Standard_Real myGap;
0085
0086
0087 };
0088
0089
0090 #include <ShapeCustom_Surface.lxx>
0091
0092
0093
0094
0095
0096 #endif // _ShapeCustom_Surface_HeaderFile