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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.
=========================================================================*/
/**
* @class vtkGenericProbeFilter
* @brief sample data values at specified point locations
*
* 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.
*
* @sa
* 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);
//@{
/**
* Specify the point locations used to probe input. A generic dataset
* type is assumed.
*/
void SetSourceData(vtkGenericDataSet *source);
vtkGenericDataSet *GetSource();
//@}
//@{
/**
* 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&) VTK_DELETE_FUNCTION;
void operator=(const vtkGenericProbeFilter&) VTK_DELETE_FUNCTION;
};
#endif
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