J:/Tecgraf/prj/femoop/trunk/shp/shpline4.h

/* -------------------------------------------------------------------------
** ShpLine4.h  -   this file contains  methods  for the  4-noded  line
**                 finite element shape.
** -------------------------------------------------------------------------
** Remarks:
** -------------------------------------------------------------------------
**
** The numbering scheme is as follows:
**
**                    s
**                    ^
**                    |    (natural coord. system)
**                    |
**                    -----> r
**
**          1+-----+-----+-----+ 4
**                 2     3          LINE4
**
** -------------------------------------------------------------------------
**
** $Author: evandro $
** $Revision: 1.3 $
** $Date: 1999/04/12 14:58:25 $
** $State: Exp $
**
** -------------------------------------------------------------------------
*/
#ifndef _SHPLINE4_H
#define _SHPLINE4_H

#include "gbldefs.h"
#include "shpline.h"

// -------------------------------------------------------------------------
// Line4 Shape class:
//
class cShapeLine4 : public virtual cLine2D
{
 public:
               cShapeLine4       ( void );
  virtual     ~cShapeLine4       ( void );
          int  GetMapOrder       ( void ) { return 3; }
  virtual void MapFunc           ( sNatCoord *, double * );
  virtual void ShapeFunc         ( sNatCoord *, double * );
  virtual void DerivMapRST       ( sNatCoord *, sDerivNat * );
  virtual void DerivShpRST       ( sNatCoord *, sDerivNat * );
  virtual int  GetEdge           ( int *, eShapeType *, int *, int * );
  virtual int  GetFace           ( int *, eShapeType *, int *, int * )
                                 { return FALSE; }
  virtual void GetNatCoordMapNode( sNatCoord * );
};

// ------------------------------------------------------------------------
// Three-dimensinal Line4 (Finite) Element Shape class:
//
class cShape3DLine4 : public virtual cLine3D,
                      public virtual cShapeLine4
{
 public:
               cShape3DLine4( void );
  virtual     ~cShape3DLine4( void );
  virtual int GetEdge       ( int *, eShapeType *, int *, int * );
};

#endif

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