gmFileNodeRenumbering.h

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/************************************************************************
**
** Copyright (C) 2014 by Carlos Augusto Teixera Mendes
** All rights reserved.
**
** This file is part of the "GeMA" software. It's use should respect
** the terms in the license agreement that can be found together 
** with this source code.
** It is provided AS IS, with NO WARRANTY OF ANY KIND, 
** INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR 
** A PARTICULAR PURPOSE.
**
************************************************************************/
 
#ifndef _GEMA_FILE_NODE_RENUMBERING_H_
#define _GEMA_FILE_NODE_RENUMBERING_H_
 
#include <assert.h>
 
#include "gmValueInfo.h"
#include "gmCellMesh.h"
#include "gmPCR.h"
 
class GmCellGroupSet;
class GmFileFormat;
 
class GmFileNodeRenumbering
{
public:
  GmFileNodeRenumbering(const GmCellMesh* mesh, GmAffectedNodes mode, bool useModelOrder);
 
  ~GmFileNodeRenumbering() { delete[] _map; }
 
  const GmCellMesh* mesh() const { return _mesh; }
 
  const GmAffectedNodes mode() const { return _mode; }
 
  bool filter(bool active, const GmCellGroupSet* group, const GmFileFormat* fileFormat);
 
  int numActiveNodes() const { return _nActiveNodes; }
 
  int numActiveGhostNodes() const { return _nActiveGhostNodes; }
 
  bool active(int node) const 
  { 
    assert(node >= 0 && node < _nMeshNodes);  
    return _map ? (_map[node] != -1) : true;
  }
 
  int map(int node) const
  {
    if(GmMesh::isGhostNode(node))
    {
      node = GmMesh::clearGhostFlag(node);
      if(_mode == GM_BOTH)  
        node += _mesh->numNodes();
    } 
 
    assert(node >= 0 && node < _nMeshNodes);
    if(_map)
      return _map[node];
    else
    {
      // If there is no mapping but the class was constructed with _modelOrder == true, we
      // still need to convert the node from internal to model order.
      if(_modelOrder)
      {
        return (_mode == GM_GHOST_NODE) ? _mesh->pcrObject()->localOrderToOriginalGhostNodeHighClear(node) :
                                          _mesh->pcrObject()->localOrderToOriginalNode(node);
      }
      else
        return node;
    }
  }
 
private:
  const GmCellMesh* _mesh; 
  GmAffectedNodes   _mode; 
  bool _modelOrder;        
  int  _nMeshNodes;        
  int  _nActiveNodes;      
  int  _nActiveGhostNodes; 
  int* _map;               
};
 
#endif