dox/Graphics/vtkDataObjectToDataSetFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkDataObjectToDataSetFilter.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 __vtkDataObjectToDataSetFilter_h
#define __vtkDataObjectToDataSetFilter_h

#include "vtkDataSetAlgorithm.h"

class vtkCellArray;
class vtkDataArray;
class vtkDataSet;
class vtkPointSet;
class vtkPolyData;
class vtkRectilinearGrid;
class vtkStructuredGrid;
class vtkStructuredPoints;
class vtkUnstructuredGrid;

class VTK_GRAPHICS_EXPORT vtkDataObjectToDataSetFilter : public vtkDataSetAlgorithm
{
public:
  static vtkDataObjectToDataSetFilter *New();
  vtkTypeMacro(vtkDataObjectToDataSetFilter,vtkDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  vtkDataObject *GetInput();


  void SetDataSetType(int);
  vtkGetMacro(DataSetType,int);
  void SetDataSetTypeToPolyData() {
    this->SetDataSetType(VTK_POLY_DATA);};
  void SetDataSetTypeToStructuredPoints() {
    this->SetDataSetType(VTK_STRUCTURED_POINTS);};
  void SetDataSetTypeToStructuredGrid() {
    this->SetDataSetType(VTK_STRUCTURED_GRID);};
  void SetDataSetTypeToRectilinearGrid() {
    this->SetDataSetType(VTK_RECTILINEAR_GRID);};
  void SetDataSetTypeToUnstructuredGrid() {
    this->SetDataSetType(VTK_UNSTRUCTURED_GRID);};


  vtkDataSet *GetOutput();
  vtkDataSet *GetOutput(int idx);
  vtkPolyData *GetPolyDataOutput();
  vtkStructuredPoints *GetStructuredPointsOutput();
  vtkStructuredGrid *GetStructuredGridOutput();
  vtkUnstructuredGrid *GetUnstructuredGridOutput();
  vtkRectilinearGrid *GetRectilinearGridOutput();


  void SetPointComponent(int comp, char *arrayName, int arrayComp,
                         int min, int max, int normalize);
  void SetPointComponent(int comp, char *arrayName, int arrayComp)
    {this->SetPointComponent(comp, arrayName, arrayComp, -1, -1, this->DefaultNormalize);};
  const char *GetPointComponentArrayName(int comp);
  int GetPointComponentArrayComponent(int comp);
  int GetPointComponentMinRange(int comp);
  int GetPointComponentMaxRange(int comp);
  int GetPointComponentNormailzeFlag(int comp);
  

  void SetVertsComponent(char *arrayName, int arrayComp, int min, int max);
  void SetVertsComponent(char *arrayName, int arrayComp)
    {this->SetVertsComponent(arrayName, arrayComp, -1, -1);};
  const char *GetVertsComponentArrayName();
  int GetVertsComponentArrayComponent();
  int GetVertsComponentMinRange();
  int GetVertsComponentMaxRange();
  void SetLinesComponent(char *arrayName, int arrayComp, int min, int max);
  void SetLinesComponent(char *arrayName, int arrayComp)
    {this->SetLinesComponent(arrayName, arrayComp, -1, -1);};
  const char *GetLinesComponentArrayName();
  int GetLinesComponentArrayComponent();
  int GetLinesComponentMinRange();
  int GetLinesComponentMaxRange();
  void SetPolysComponent(char *arrayName, int arrayComp, int min, int max);
  void SetPolysComponent(char *arrayName, int arrayComp)
    {this->SetPolysComponent(arrayName, arrayComp, -1, -1);};
  const char *GetPolysComponentArrayName();
  int GetPolysComponentArrayComponent();
  int GetPolysComponentMinRange();
  int GetPolysComponentMaxRange();
  void SetStripsComponent(char *arrayName, int arrayComp, int min, int max);
  void SetStripsComponent(char *arrayName, int arrayComp)
    {this->SetStripsComponent(arrayName, arrayComp, -1, -1);};
  const char *GetStripsComponentArrayName();
  int GetStripsComponentArrayComponent();
  int GetStripsComponentMinRange();
  int GetStripsComponentMaxRange();
  

  void SetCellTypeComponent(char *arrayName, int arrayComp,
                            int min, int max);
  void SetCellTypeComponent(char *arrayName, int arrayComp)
    {this->SetCellTypeComponent(arrayName, arrayComp, -1, -1);};
  const char *GetCellTypeComponentArrayName();
  int GetCellTypeComponentArrayComponent();
  int GetCellTypeComponentMinRange();
  int GetCellTypeComponentMaxRange();
  void SetCellConnectivityComponent(char *arrayName, int arrayComp,
                                    int min, int max);
  void SetCellConnectivityComponent(char *arrayName, int arrayComp)
    {this->SetCellConnectivityComponent(arrayName, arrayComp, -1, -1);};
  const char *GetCellConnectivityComponentArrayName();
  int GetCellConnectivityComponentArrayComponent();
  int GetCellConnectivityComponentMinRange();
  int GetCellConnectivityComponentMaxRange();
  

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


  vtkSetVector3Macro(Dimensions,int);
  vtkGetVectorMacro(Dimensions,int,3);
  

  vtkSetVector3Macro(Origin,double);
  vtkGetVectorMacro(Origin,double,3);
  

  vtkSetVector3Macro(Spacing,double);
  vtkGetVectorMacro(Spacing,double,3);
  

  void SetDimensionsComponent(char *arrayName, int arrayComp, int min, int max);
  void SetDimensionsComponent(char *arrayName, int arrayComp)
    {this->SetDimensionsComponent(arrayName, arrayComp, -1, -1);};
  void SetSpacingComponent(char *arrayName, int arrayComp, int min, int max);
  void SetSpacingComponent(char *arrayName, int arrayComp)
    {this->SetSpacingComponent(arrayName, arrayComp, -1, -1);};
  void SetOriginComponent(char *arrayName, int arrayComp, int min, int max);
  void SetOriginComponent(char *arrayName, int arrayComp)
    {this->SetOriginComponent(arrayName, arrayComp, -1, -1);};  

protected:
  vtkDataObjectToDataSetFilter();
  ~vtkDataObjectToDataSetFilter();

  virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *); //generate output data
  virtual int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  virtual int RequestUpdateExtent(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  virtual int FillInputPortInformation(int port, vtkInformation *info);
  virtual int RequestDataObject(vtkInformation *, vtkInformationVector **,
                                vtkInformationVector *);

  char Updating;

  // control flags used to generate the output dataset
  int DataSetType; //the type of dataset to generate
  
  // Support definition of points
  char *PointArrays[3]; //the name of the arrays
  int PointArrayComponents[3]; //the array components used for x-y-z
  vtkIdType PointComponentRange[3][2]; //the range of the components to use
  int PointNormalize[3]; //flags control normalization

  // These define cells for vtkPolyData
  char *VertsArray; //the name of the array
  int VertsArrayComponent; //the array component
  vtkIdType VertsComponentRange[2]; //the range of the components to use

  char *LinesArray; //the name of the array
  int LinesArrayComponent; //the array component used for cell types
  vtkIdType LinesComponentRange[2]; //the range of the components to use

  char *PolysArray; //the name of the array
  int PolysArrayComponent; //the array component
  vtkIdType PolysComponentRange[2]; //the range of the components to use

  char *StripsArray; //the name of the array
  int StripsArrayComponent; //the array component
  vtkIdType StripsComponentRange[2]; //the range of the components to use

  // Used to define vtkUnstructuredGrid datasets
  char *CellTypeArray; //the name of the array
  int CellTypeArrayComponent; //the array component used for cell types
  vtkIdType CellTypeComponentRange[2]; //the range of the components to use

  char *CellConnectivityArray; //the name of the array
  int CellConnectivityArrayComponent; //the array components used for cell connectivity
  vtkIdType CellConnectivityComponentRange[2]; //the range of the components to use

  // helper methods (and attributes) to construct datasets
  void SetArrayName(char* &name, char *newName);
  vtkIdType ConstructPoints(vtkDataObject *input, vtkPointSet *ps);
  vtkIdType ConstructPoints(vtkDataObject *input, vtkRectilinearGrid *rg);
  int ConstructCells(vtkDataObject *input, vtkPolyData *pd);
  int ConstructCells(vtkDataObject *input, vtkUnstructuredGrid *ug);
  vtkCellArray *ConstructCellArray(vtkDataArray *da, int comp,
                                   vtkIdType compRange[2]);

  // Default value for normalization
  int DefaultNormalize;

  // Couple of different ways to specify dimensions, spacing, and origin.
  int Dimensions[3];
  double Origin[3];
  double Spacing[3];
  
  char *DimensionsArray; //the name of the array
  int DimensionsArrayComponent; //the component of the array used for dimensions
  vtkIdType DimensionsComponentRange[2]; //the ComponentRange of the array for the dimensions
  
  char *OriginArray; //the name of the array
  int OriginArrayComponent; //the component of the array used for Origins
  vtkIdType OriginComponentRange[2]; //the ComponentRange of the array for the Origins
  
  char *SpacingArray; //the name of the array
  int SpacingArrayComponent; //the component of the array used for Spacings
  vtkIdType SpacingComponentRange[2]; //the ComponentRange of the array for the Spacings
  
  void ConstructDimensions(vtkDataObject *input);
  void ConstructSpacing(vtkDataObject *input);
  void ConstructOrigin(vtkDataObject *input);
  
private:
  vtkDataObjectToDataSetFilter(const vtkDataObjectToDataSetFilter&);  // Not implemented.
  void operator=(const vtkDataObjectToDataSetFilter&);  // Not implemented.
};

#endif