vtkMergeCells.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkMergeCells.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.

=========================================================================*/
/*----------------------------------------------------------------------------
 Copyright (c) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/

#ifndef vtkMergeCells_h
#define vtkMergeCells_h

#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkObject.h"
#include "vtkDataSetAttributes.h" // Needed for FieldList

class vtkDataSet;
class vtkUnstructuredGrid;
class vtkPointData;
class vtkCellData;
class vtkMergeCellsSTLCloak;

class VTKFILTERSGENERAL_EXPORT vtkMergeCells : public vtkObject
{
public:
  vtkTypeMacro(vtkMergeCells, vtkObject);
  void PrintSelf(ostream &os, vtkIndent indent) override;

  static vtkMergeCells *New();

  virtual void SetUnstructuredGrid(vtkUnstructuredGrid*);
  vtkGetObjectMacro(UnstructuredGrid, vtkUnstructuredGrid);

  vtkSetMacro(TotalNumberOfCells, vtkIdType);
  vtkGetMacro(TotalNumberOfCells, vtkIdType);

  vtkSetMacro(TotalNumberOfPoints, vtkIdType);
  vtkGetMacro(TotalNumberOfPoints, vtkIdType);

  vtkSetMacro(UseGlobalIds, int);
  vtkGetMacro(UseGlobalIds, int);

  vtkSetClampMacro(PointMergeTolerance, float, 0.0, VTK_FLOAT_MAX);
  vtkGetMacro(PointMergeTolerance, float);

  vtkSetMacro(UseGlobalCellIds, int);
  vtkGetMacro(UseGlobalCellIds, int);

  vtkSetMacro(MergeDuplicatePoints, int);
  vtkGetMacro(MergeDuplicatePoints, int);
  vtkBooleanMacro(MergeDuplicatePoints, int);

  vtkSetMacro(TotalNumberOfDataSets, int);
  vtkGetMacro(TotalNumberOfDataSets, int);

  int MergeDataSet(vtkDataSet *set);

  void Finish();

protected:

  vtkMergeCells();
  ~vtkMergeCells() override;

private:

  void FreeLists();
  void StartUGrid(vtkDataSet *set);
  vtkIdType *MapPointsToIdsUsingGlobalIds(vtkDataSet *set);
  vtkIdType *MapPointsToIdsUsingLocator(vtkDataSet *set);
  vtkIdType AddNewCellsUnstructuredGrid(vtkDataSet *set, vtkIdType *idMap);
  vtkIdType AddNewCellsDataSet(vtkDataSet *set, vtkIdType *idMap);

  vtkIdType GlobalCellIdAccessGetId(vtkIdType idx);
  int GlobalCellIdAccessStart(vtkDataSet *set);
  vtkIdType GlobalNodeIdAccessGetId(vtkIdType idx);
  int GlobalNodeIdAccessStart(vtkDataSet *set);

  int TotalNumberOfDataSets;

  vtkIdType TotalNumberOfCells;
  vtkIdType TotalNumberOfPoints;

  vtkIdType NumberOfCells;     // so far
  vtkIdType NumberOfPoints;

  int UseGlobalIds;       // point, or node, IDs
  int GlobalIdArrayType;
  void* GlobalIdArray;

  int UseGlobalCellIds;   // cell IDs
  int GlobalCellIdArrayType;
  void* GlobalCellIdArray;

  float PointMergeTolerance;
  int MergeDuplicatePoints;

  char InputIsUGrid;
  char InputIsPointSet;

  vtkMergeCellsSTLCloak *GlobalIdMap;
  vtkMergeCellsSTLCloak *GlobalCellIdMap;

  vtkDataSetAttributes::FieldList *ptList;
  vtkDataSetAttributes::FieldList *cellList;

  vtkUnstructuredGrid *UnstructuredGrid;

  int nextGrid;

  vtkMergeCells(const vtkMergeCells&) = delete;
  void operator=(const vtkMergeCells&) = delete;
};
#endif