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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
// Created on: 1991-03-12
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// Created by: Michel CHAUVAT
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _GProp_HeaderFile
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#define _GProp_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Real.hxx>
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class gp_Pnt;
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class gp_Mat;
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class GProp_GProps;
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class GProp_PGProps;
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class GProp_CelGProps;
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class GProp_SelGProps;
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class GProp_VelGProps;
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class GProp_PrincipalProps;
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class GProp_PEquation;
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//! This package defines algorithmes to compute the global properties
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//! of a set of points, a curve, a surface, a solid (non infinite
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//! region of space delimited with geometric entities), a compound
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//! geometric system (heterogeneous composition of the previous
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//! entities).
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//!
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//! Global properties are :
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//! . length, area, volume,
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//! . centre of mass,
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//! . axis of inertia,
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//! . moments of inertia,
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//! . radius of gyration.
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//!
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//! It provides also a class to compile the average point or
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//! line of a set of points.
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class GProp
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! methods of package
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//! Computes the matrix Operator, referred to as the
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//! "Huyghens Operator" of a geometric system at the
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//! point Q of the space, using the following data :
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//! - Mass, i.e. the mass of the system,
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//! - G, the center of mass of the system.
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//! The "Huyghens Operator" is used to compute
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//! Inertia/Q, the matrix of inertia of the system at
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//! the point Q using Huyghens' theorem :
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//! Inertia/Q = Inertia/G + HOperator (Q, G, Mass)
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//! where Inertia/G is the matrix of inertia of the
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//! system relative to its center of mass as returned by
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//! the function MatrixOfInertia on any GProp_GProps object.
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Standard_EXPORT static void HOperator (const gp_Pnt& G, const gp_Pnt& Q, const Standard_Real Mass, gp_Mat& Operator);
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protected:
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private:
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friend class GProp_GProps;
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friend class GProp_PGProps;
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friend class GProp_CelGProps;
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friend class GProp_SelGProps;
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friend class GProp_VelGProps;
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friend class GProp_PrincipalProps;
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friend class GProp_PEquation;
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};
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#endif // _GProp_HeaderFile
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