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 // Created on: 1994-12-09
 // Created by: Jacques GOUSSARD
 // Copyright (c) 1994-1999 Matra Datavision
 // Copyright (c) 1999-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _BRepBuilderAPI_NurbsConvert_HeaderFile
 #define _BRepBuilderAPI_NurbsConvert_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 
 #include <BRepBuilderAPI_ModifyShape.hxx>
 #include <TopTools_DataMapOfShapeShape.hxx>
 #include <BRepTools_ReShape.hxx>
 
 class TopoDS_Shape;
 
 
 //! Conversion of the complete geometry of a shape
 //! (all 3D analytical representation of surfaces and curves)
 //! into NURBS geometry (execpt for Planes). For example,
 //! all curves supporting edges of the basis shape are converted
 //! into BSpline curves, and all surfaces supporting its faces are
 //! converted into BSpline surfaces.
 class BRepBuilderAPI_NurbsConvert  : public BRepBuilderAPI_ModifyShape
 {
 public:
 
   DEFINE_STANDARD_ALLOC
 
   
   //! Constructs a framework for converting the geometry of a
   //! shape into NURBS geometry. Use the function Perform
   //! to define the shape to convert.
   Standard_EXPORT BRepBuilderAPI_NurbsConvert();
   
   //! Builds a new shape by converting the geometry of the
   //! shape S into NURBS geometry. Specifically, all curves
   //! supporting edges of S are converted into BSpline
   //! curves, and all surfaces supporting its faces are
   //! converted into BSpline surfaces.
   //! Use the function Shape to access the new shape.
   //! Note: the constructed framework can be reused to
   //! convert other shapes. You specify these with the
   //! function Perform.
   Standard_EXPORT BRepBuilderAPI_NurbsConvert(const TopoDS_Shape& S, const Standard_Boolean Copy = Standard_False);
   
   //! Builds a new shape by converting the geometry of the
   //! shape S into NURBS geometry.
   //! Specifically, all curves supporting edges of S are
   //! converted into BSpline curves, and all surfaces
   //! supporting its faces are converted into BSpline surfaces.
   //! Use the function Shape to access the new shape.
   //! Note: this framework can be reused to convert other
   //! shapes: you specify them by calling the function Perform again.
   Standard_EXPORT void Perform (const TopoDS_Shape& S, const Standard_Boolean Copy = Standard_False);
 
 
   //! Returns the list  of shapes modified from the shape
   //! <S>.
   Standard_EXPORT virtual const TopTools_ListOfShape& Modified (const TopoDS_Shape& S);
   
   //! Returns the modified shape corresponding to <S>.
   //! S can correspond to the entire initial shape or to its subshape.
   //! Exceptions
   //! Standard_NoSuchObject if S is not the initial shape or
   //! a subshape of the initial shape to which the
   //! transformation has been applied. 
   Standard_EXPORT virtual TopoDS_Shape ModifiedShape (const TopoDS_Shape& S) const;
 
 
 protected:
 
 
 
 
 
 private:
 
   Standard_EXPORT void CorrectVertexTol();
 
   TopTools_DataMapOfShapeShape myVtxToReplace;
   BRepTools_ReShape mySubs;
 
 };
 
 
 
 
 
 
 
 #endif // _BRepBuilderAPI_NurbsConvert_HeaderFile

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