Femoop: J:/Tecgraf/prj/femoop/trunk/shp/shpplane.h Source File

00001 // -------------------------------------------------------------------------
00002 // ShpPlane.h - Definition of the plane shape class.
00003 // -------------------------------------------------------------------------
00004 // Description:
00005 //
00006 // This class is intended to deal with area shapes in xy plane. Thus, each
00007 // derived shape has two parametric coordinates (r,s) which are mapped on
00008 // two cartesian coordinates (x,y). The derived shapes should be used by
00009 // elements modeling two-dimensional problems, such as plane stress, plane 
00010 // strain, axisymmetric, plates, shallow shells, ...
00011 // -------------------------------------------------------------------------
00012 //
00013 // $Author: joaquim $
00014 // $Revision: 1.2 $
00015 // $Date: 1998/02/16 20:21:11 $
00016 // $State: Exp $
00017 //
00018 // -------------------------------------------------------------------------
00019 
00020 #ifndef _SHPPLANE_H
00021 #define _SHPPLANE_H
00022 
00023 #include "shape.h"
00024 
00025 // -------------------------------------------------------------------------
00026 // Plane Shape class:
00027 //
00028 class cPlaneShape : public cShape
00029 {
00030  public:
00031                cPlaneShape( void );
00032   virtual     ~cPlaneShape( void );
00033           int  GetDimShape( void ) { return 2; }
00034   virtual void Jacobian   ( sDerivNat *, double *, sNodeCoord *,
00035                             double *, double **, double ** );
00036   virtual void DerivXYZ   ( double **, sDerivNat *, sDerivCart * );
00037   virtual void LocalSys   ( sDerivNat *, sNodeCoord *, double ** );
00038   virtual void DsaDerivXYZ( sNodeCoord *, sDerivNat *, sDerivNat *,
00039                             double *, sDerivCart *, sNodeCoord *,
00040                             double *, sDerivCart *);
00041 };
00042 
00043 #endif
00044