vtkDataObjectGenerator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkDataObjectGenerator.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 vtkDataObjectGenerator_h
#define vtkDataObjectGenerator_h
 
#include "vtkDataObjectAlgorithm.h"
#include "vtkFiltersCoreModule.h" // For export macro
 
class vtkInternalStructureCache;
 
class VTKFILTERSCORE_EXPORT vtkDataObjectGenerator : public vtkDataObjectAlgorithm
{
public:
  static vtkDataObjectGenerator* New();
  vtkTypeMacro(vtkDataObjectGenerator, vtkDataObjectAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetStringMacro(Program);
  vtkGetStringMacro(Program);
 
protected:
  vtkDataObjectGenerator();
  ~vtkDataObjectGenerator() override;
 
  int RequestData(
    vtkInformation* req, vtkInformationVector** inV, vtkInformationVector* outV) override;
  int RequestDataObject(
    vtkInformation* req, vtkInformationVector** inV, vtkInformationVector* outV) override;
  int RequestInformation(
    vtkInformation* req, vtkInformationVector** inV, vtkInformationVector* outV) override;
  int RequestUpdateExtent(
    vtkInformation* req, vtkInformationVector** inV, vtkInformationVector* outV) override;
 
  // the string to parse to create a structure
  char* Program;
  // a record of the structure
  vtkInternalStructureCache* Structure;
 
  // Helper for RequestDataObject
  vtkDataObject* CreateOutputDataObjects(vtkInternalStructureCache* structure);
  // Helper for RequestData
  vtkDataObject* FillOutputDataObjects(
    vtkInternalStructureCache* structure, int level, int stripe = 0);
 
  // to determine which composite data stripe to fill in
  vtkIdType Rank;
  vtkIdType Processors;
 
  // create the templated atomic data sets
  void MakeImageData1(vtkDataSet* ds);
  void MakeImageData2(vtkDataSet* ds);
  void MakeUniformGrid1(vtkDataSet* ds);
  void MakeRectilinearGrid1(vtkDataSet* ds);
  void MakeStructuredGrid1(vtkDataSet* ds);
  void MakePolyData1(vtkDataSet* ds);
  void MakePolyData2(vtkDataSet* ds);
  void MakeUnstructuredGrid1(vtkDataSet* ds);
  void MakeUnstructuredGrid2(vtkDataSet* ds);
  void MakeUnstructuredGrid3(vtkDataSet* ds);
  void MakeUnstructuredGrid4(vtkDataSet* ds);
 
  // used to spatially separate sub data sets within composites
  double XOffset; // increases for each dataset index
  double YOffset; // increases for each sub data set
  double ZOffset; // increases for each group index
 
  // used to filling in point and cell values with unique Ids
  vtkIdType CellIdCounter;
  vtkIdType PointIdCounter;
 
  // assign point and cell values to each point and cell
  void MakeValues(vtkDataSet* ds);
 
private:
  vtkDataObjectGenerator(const vtkDataObjectGenerator&) = delete;
  void operator=(const vtkDataObjectGenerator&) = delete;
};
 
#endif