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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkDataSetToDataSetFilter.h,v $
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.
=========================================================================*/
// .NAME vtkDataSetToDataSetFilter - abstract filter class
// .SECTION Description
// vtkDataSetToDataSetFilter is an abstract filter class. Subclasses of
// vtkDataSetToDataSetFilter take a dataset as input and create a dataset as
// output. The form of the input geometry is not changed in these filters,
// only the point attributes (e.g. scalars, vectors, etc.).
//
// This is an abstract filter type. What that means is that the output of the
// filter is an abstract type (i.e., vtkDataSet), no matter what the input of
// the filter is. This can cause problems connecting together filters due to
// the change in dataset type. (For example, in a series of filters
// processing vtkPolyData, when a vtkDataSetToDataSetFilter or subclass is
// introduced into the pipeline, if the filter downstream of it takes
// vtkPolyData as input, the pipeline connection cannot be made.) To get
// around this problem, use one of the convenience methods to return a
// concrete type (e.g., vtkGetPolyDataOutput(), GetStructuredPointsOutput(),
// etc.).
// .SECTION See Also
// vtkBrownianPoints vtkProbeFilter vtkThresholdTextureCoords vtkDicer
// vtkElevationFilter vtkImplicitTextureCoords vtkTextureMapToBox
// vtkTextureMapToPlane vtkVectorDot vtkVectorNorm
#ifndef __vtkDataSetToDataSetFilter_h
#define __vtkDataSetToDataSetFilter_h
#include "vtkDataSetSource.h"
class vtkDataSet;
class vtkPolyData;
class vtkRectilinearGrid;
class vtkStructuredGrid;
class vtkStructuredPoints;
class vtkUnstructuredGrid;
class VTK_FILTERING_EXPORT vtkDataSetToDataSetFilter : public vtkDataSetSource
{
public:
vtkTypeRevisionMacro(vtkDataSetToDataSetFilter,vtkDataSetSource);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Specify the input data or filter.
void SetInput(vtkDataSet *input);
// Description:
// Get the output of this filter. If output is NULL then input
// hasn't been set which is necessary for abstract objects.
vtkDataSet *GetOutput();
vtkDataSet *GetOutput(int idx);
// Description:
// Get the output as vtkPolyData.
virtual vtkPolyData *GetPolyDataOutput();
// Description:
// Get the output as vtkStructuredPoints.
virtual vtkStructuredPoints *GetStructuredPointsOutput();
// Description:
// Get the output as vtkStructuredGrid.
virtual vtkStructuredGrid *GetStructuredGridOutput();
// Description:
// Get the output as vtkUnstructuredGrid.
virtual vtkUnstructuredGrid *GetUnstructuredGridOutput();
// Description:
// Get the output as vtkRectilinearGrid.
virtual vtkRectilinearGrid *GetRectilinearGridOutput();
// Description:
// Get the input data or filter.
vtkDataSet *GetInput();
// Description:
// By default copy the output update extent to the input
virtual void ComputeInputUpdateExtents( vtkDataObject *output );
// Description:
// Transform pipeline requests from executives into old-style
// pipeline calls. This works with the
// vtkStreamingDemandDrivenPipeline executive to maintain backward
// compatibility for filters written as subclasses of vtkSource.
virtual int ProcessRequest(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
protected:
vtkDataSetToDataSetFilter();
~vtkDataSetToDataSetFilter();
void ExecuteInformation();
virtual int FillInputPortInformation(int, vtkInformation*);
// This is called by the superclass.
// This is the method you should override.
virtual int RequestDataObject(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
private:
vtkDataSetToDataSetFilter(const vtkDataSetToDataSetFilter&); // Not implemented.
void operator=(const vtkDataSetToDataSetFilter&); // Not implemented.
};
#endif
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