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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGenericProbeFilter.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.
=========================================================================*/
// .NAME vtkGenericProbeFilter - sample data values at specified point locations
// .SECTION Description
// vtkGenericProbeFilter is a filter that computes point attributes (e.g., scalars,
// vectors, etc.) at specified point positions. The filter has two inputs:
// the Input and Source. The Input geometric structure is passed through the
// filter. The point attributes are computed at the Input point positions
// by interpolating into the source data. For example, we can compute data
// values on a plane (plane specified as Input) from a volume (Source).
//
// This filter can be used to resample data, or convert one dataset form into
// another. For example, a generic dataset can be probed with a volume
// (three-dimensional vtkImageData), and then volume rendering techniques can
// be used to visualize the results. Another example: a line or curve can be
// used to probe data to produce x-y plots along that line or curve.
//
// This filter has been implemented to operate on generic datasets, rather
// than the typical vtkDataSet (and subclasses). vtkGenericDataSet is a more
// complex cousin of vtkDataSet, typically consisting of nonlinear,
// higher-order cells. To process this type of data, generic cells are
// automatically tessellated into linear cells prior to isocontouring.
// .SECTION See Also
// vtkGenericProbeFilter vtkProbeFilter vtkGenericDataSet
#ifndef vtkGenericProbeFilter_h
#define vtkGenericProbeFilter_h
#include "vtkFiltersGenericModule.h" // For export macro
#include "vtkDataSetAlgorithm.h"
class vtkIdTypeArray;
class vtkGenericDataSet;
class VTKFILTERSGENERIC_EXPORT vtkGenericProbeFilter : public vtkDataSetAlgorithm
{
public:
static vtkGenericProbeFilter *New();
vtkTypeMacro(vtkGenericProbeFilter,vtkDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Specify the point locations used to probe input. A generic dataset
// type is assumed.
void SetSourceData(vtkGenericDataSet *source);
vtkGenericDataSet *GetSource();
// Description:
// Get the list of point ids in the output that contain attribute data
// interpolated from the source.
vtkGetObjectMacro(ValidPoints, vtkIdTypeArray);
protected:
vtkGenericProbeFilter();
~vtkGenericProbeFilter();
int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
int FillInputPortInformation(int, vtkInformation*);
vtkIdTypeArray *ValidPoints;
private:
vtkGenericProbeFilter(const vtkGenericProbeFilter&); // Not implemented.
void operator=(const vtkGenericProbeFilter&); // Not implemented.
};
#endif
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