include/opencascade/BRepGProp_Sinert.hxx

0001 // Created on: 1991-04-12
0002 // Created by: Michel CHAUVAT
0003 // Copyright (c) 1991-1999 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 _BRepGProp_Sinert_HeaderFile
0018 #define _BRepGProp_Sinert_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022
0023 #include <GProp_GProps.hxx>
0024 class BRepGProp_Face;
0025 class gp_Pnt;
0026 class BRepGProp_Domain;
0027
0028
0029
0030 //! Computes the global properties of a face in 3D space.
0031 //! The face 's requirements to evaluate the global properties
0032 //! are defined in the template FaceTool from package GProp.
0033 class BRepGProp_Sinert  : public GProp_GProps
0034 {
0035 public:
0036
0037   DEFINE_STANDARD_ALLOC
0038
0039
0040   Standard_EXPORT BRepGProp_Sinert();
0041
0042   Standard_EXPORT BRepGProp_Sinert(const BRepGProp_Face& S, const gp_Pnt& SLocation);
0043
0044
0045   //! Builds a Sinert to evaluate the global properties of
0046   //! the face <S>. If isNaturalRestriction is true the domain of S is defined
0047   //! with the natural bounds, else it defined with an iterator
0048   //! of Edge from TopoDS (see DomainTool from GProp)
0049   Standard_EXPORT BRepGProp_Sinert(BRepGProp_Face& S, BRepGProp_Domain& D, const gp_Pnt& SLocation);
0050
0051   Standard_EXPORT BRepGProp_Sinert(BRepGProp_Face& S, const gp_Pnt& SLocation, const Standard_Real Eps);
0052
0053   Standard_EXPORT BRepGProp_Sinert(BRepGProp_Face& S, BRepGProp_Domain& D, const gp_Pnt& SLocation, const Standard_Real Eps);
0054
0055   Standard_EXPORT void SetLocation (const gp_Pnt& SLocation);
0056
0057   Standard_EXPORT void Perform (const BRepGProp_Face& S);
0058
0059   Standard_EXPORT void Perform (BRepGProp_Face& S, BRepGProp_Domain& D);
0060
0061   Standard_EXPORT Standard_Real Perform (BRepGProp_Face& S, const Standard_Real Eps);
0062
0063   Standard_EXPORT Standard_Real Perform (BRepGProp_Face& S, BRepGProp_Domain& D, const Standard_Real Eps);
0064
0065
0066   //! If previously used method contained Eps parameter
0067   //! get actual relative error of the computation, else return  1.0.
0068   Standard_EXPORT Standard_Real GetEpsilon();
0069
0070
0071
0072
0073 protected:
0074
0075
0076
0077
0078
0079 private:
0080
0081
0082
0083   Standard_Real myEpsilon;
0084
0085
0086 };
0087
0088
0089
0090
0091
0092
0093
0094 #endif // _BRepGProp_Sinert_HeaderFile