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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @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 "vtkDataSetAlgorithm.h"
#include "vtkFiltersGenericModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class vtkIdTypeArray;
class vtkGenericDataSet;
class VTKFILTERSGENERIC_EXPORT vtkGenericProbeFilter : public vtkDataSetAlgorithm
{
public:
static vtkGenericProbeFilter* New();
vtkTypeMacro(vtkGenericProbeFilter, vtkDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* 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() override;
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int FillInputPortInformation(int, vtkInformation*) override;
vtkIdTypeArray* ValidPoints;
private:
vtkGenericProbeFilter(const vtkGenericProbeFilter&) = delete;
void operator=(const vtkGenericProbeFilter&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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