1 // Created on: 1991-04-12
2 // Created by: Michel CHAUVAT
3 // Copyright (c) 1991-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepGProp_Sinert_HeaderFile
18 #define _BRepGProp_Sinert_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Real.hxx>
25 #include <GProp_GProps.hxx>
28 class BRepGProp_Domain;
32 //! Computes the global properties of a face in 3D space.
33 //! The face 's requirements to evaluate the global properties
34 //! are defined in the template FaceTool from package GProp.
35 class BRepGProp_Sinert : public GProp_GProps
42 Standard_EXPORT BRepGProp_Sinert();
44 Standard_EXPORT BRepGProp_Sinert(const BRepGProp_Face& S, const gp_Pnt& SLocation);
47 //! Builds a Sinert to evaluate the global properties of
48 //! the face <S>. If isNaturalRestriction is true the domain of S is defined
49 //! with the natural bounds, else it defined with an iterator
50 //! of Edge from TopoDS (see DomainTool from GProp)
51 Standard_EXPORT BRepGProp_Sinert(BRepGProp_Face& S, BRepGProp_Domain& D, const gp_Pnt& SLocation);
53 Standard_EXPORT BRepGProp_Sinert(BRepGProp_Face& S, const gp_Pnt& SLocation, const Standard_Real Eps);
55 Standard_EXPORT BRepGProp_Sinert(BRepGProp_Face& S, BRepGProp_Domain& D, const gp_Pnt& SLocation, const Standard_Real Eps);
57 Standard_EXPORT void SetLocation (const gp_Pnt& SLocation);
59 Standard_EXPORT void Perform (const BRepGProp_Face& S);
61 Standard_EXPORT void Perform (BRepGProp_Face& S, BRepGProp_Domain& D);
63 Standard_EXPORT Standard_Real Perform (BRepGProp_Face& S, const Standard_Real Eps);
65 Standard_EXPORT Standard_Real Perform (BRepGProp_Face& S, BRepGProp_Domain& D, const Standard_Real Eps);
68 //! If previously used method contained Eps parameter
69 //! get actual relative error of the computation, else return 1.0.
70 Standard_EXPORT Standard_Real GetEpsilon();
85 Standard_Real myEpsilon;
96 #endif // _BRepGProp_Sinert_HeaderFile