vtkGenericEdgeTable.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkGenericEdgeTable.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkGenericEdgeTable_h
#define vtkGenericEdgeTable_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
 
class vtkEdgeTableEdge;
class vtkEdgeTablePoints;
 
class VTKCOMMONDATAMODEL_EXPORT vtkGenericEdgeTable : public vtkObject
{
public:
  static vtkGenericEdgeTable *New();
 
 
  vtkTypeMacro(vtkGenericEdgeTable,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);
 
 
  void InsertEdge(vtkIdType e1, vtkIdType e2, vtkIdType cellId,
                  int ref, vtkIdType &ptId );
 
  void InsertEdge(vtkIdType e1, vtkIdType e2, vtkIdType cellId, int ref = 1 );
 
  int RemoveEdge(vtkIdType e1, vtkIdType e2);
 
  int CheckEdge(vtkIdType e1, vtkIdType e2, vtkIdType &ptId);
 
 
  int IncrementEdgeReferenceCount(vtkIdType e1, vtkIdType e2,
                                  vtkIdType cellId);
 
  int CheckEdgeReferenceCount(vtkIdType e1, vtkIdType e2);
 
  void Initialize(vtkIdType start);
 
  int GetNumberOfComponents();
 
  void SetNumberOfComponents(int count);
 
  int CheckPoint(vtkIdType ptId);
 
  int CheckPoint(vtkIdType ptId, double point[3], double *scalar);
 
 
  void InsertPoint(vtkIdType ptId, double point[3]);
  // \pre: sizeof(s)==GetNumberOfComponents()
  void InsertPointAndScalar(vtkIdType ptId, double pt[3], double *s);
 
  void RemovePoint(vtkIdType ptId);
 
  void IncrementPointReferenceCount(vtkIdType ptId );
 
 
  void DumpTable();
  void LoadFactor();
 
//BTX
class PointEntry
{
public:
  vtkIdType PointId;
  double Coord[3];
  double *Scalar;  // point data: all point-centered attributes at this point
  int numberOfComponents;
 
  int Reference;  //signed char
 
  PointEntry(int size);
 
  ~PointEntry()
    {
      delete[] this->Scalar;
    }
 
  PointEntry(const PointEntry &other)
    {
    this->PointId  = other.PointId;
 
    memcpy(this->Coord,other.Coord,sizeof(double)*3);
 
    int c = other.numberOfComponents;
    this->numberOfComponents = c;
    this->Scalar = new double[c];
    memcpy(this->Scalar, other.Scalar, sizeof(double)*c);
    this->Reference = other.Reference;
    }
 
  void operator=(const PointEntry &other)
    {
    if(this != &other)
      {
      this->PointId  = other.PointId;
 
      memcpy(this->Coord, other.Coord, sizeof(double)*3);
 
      int c = other.numberOfComponents;
 
      if(this->numberOfComponents!=c)
        {
        delete[] this->Scalar;
        this->Scalar = new double[c];
        this->numberOfComponents = c;
        }
      memcpy(this->Scalar, other.Scalar, sizeof(double)*c);
      this->Reference = other.Reference;
      }
    }
};
 
class EdgeEntry
{
public:
  vtkIdType E1;
  vtkIdType E2;
 
  int Reference;  //signed char
  int ToSplit;  //signed char
  vtkIdType PtId;
  vtkIdType CellId; //CellId the edge refer to at a step in tesselation
 
  EdgeEntry()
    {
    this->Reference = 0;
    this->CellId = -1;
    }
  ~EdgeEntry() {}
 
  EdgeEntry(const EdgeEntry& copy)
    {
    this->E1 = copy.E1;
    this->E2 = copy.E2;
 
    this->Reference = copy.Reference;
    this->ToSplit = copy.ToSplit;
    this->PtId = copy.PtId;
    this->CellId = copy.CellId;
    }
 
  void operator=(const EdgeEntry& entry)
    {
    if(this == &entry)
      {
      return;
      }
    this->E1 = entry.E1;
    this->E2 = entry.E2;
    this->Reference = entry.Reference;
    this->ToSplit = entry.ToSplit;
    this->PtId = entry.PtId;
    this->CellId = entry.CellId;
    }
};
//ETX
 
protected:
  vtkGenericEdgeTable();
  ~vtkGenericEdgeTable();
 
 
  void InsertEdge(vtkIdType e1, vtkIdType e2, vtkIdType cellId,
                  int ref, int toSplit, vtkIdType &ptId );
 
  //Hash table that contiain entry based on edges:
  vtkEdgeTableEdge   *EdgeTable;
 
  //At end of process we should be able to retrieve points coord based on pointid
  vtkEdgeTablePoints *HashPoints;
 
  // Main hash functions
  //For edge table:
  vtkIdType HashFunction(vtkIdType e1, vtkIdType e2);
 
  //For point table:
  vtkIdType HashFunction(vtkIdType ptId);
 
  // Keep track of the last point id we inserted, increment it each time:
  vtkIdType LastPointId;
 
  vtkIdType NumberOfComponents;
 
private:
  vtkGenericEdgeTable(const vtkGenericEdgeTable&);  // Not implemented.
  void operator=(const vtkGenericEdgeTable&);  // Not implemented.
 
};
 
#endif