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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkPointSetToOctreeImageFilter
* @brief convert a point set to an octree image
*
* vtkPointSetToOctreeImageFilter is a filter that converts a vtkPointSet to an
* a vtkPartitionedDataset with one vtkImageData with a number of points per cell target.
*
* The reason we output a vtkPartitionedDataset is because the WHOLE_EXTENT needs to be dynamic.
*
* The scalars of the vtkImageData are an octree unsigned char cell data array. Each bit of the
* unsigned char indicates if the point-set had a point close to one of the 8 corners of the cell.
*
* It can optionally also output a cell data array based on an input point-data scalar array by
* setting SetInputArrayToProcess. This array will have 1 or many components that represent
* different functions i.e. last value, min, max, count, sum, mean.
*
* @warning
* This class has been threaded with vtkSMPTools. Using TBB or other
* non-sequential type (set in the CMake variable
* VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
*
* @sa vtkOctreeImageToPointSetFilter
*/
#ifndef vtkPointSetToOctreeImageFilter_h
#define vtkPointSetToOctreeImageFilter_h
#include "vtkFiltersGeometryPreviewModule.h" // For export macro
#include "vtkPartitionedDataSetAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class VTKFILTERSGEOMETRYPREVIEW_EXPORT vtkPointSetToOctreeImageFilter
: public vtkPartitionedDataSetAlgorithm
{
public:
vtkTypeMacro(vtkPointSetToOctreeImageFilter, vtkPartitionedDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
static vtkPointSetToOctreeImageFilter* New();
///@{
/**
* Specify the average number of points in each cell of the output image.
* This data member is used to determine the number dimensions of the output image.
*
* The default is 1.
*/
vtkSetClampMacro(NumberOfPointsPerCell, int, 1, VTK_INT_MAX);
vtkGetMacro(NumberOfPointsPerCell, int);
///@}
///@{
/**
* Set/Get if array defined using SetInputArrayToProcess, which MUST be a point data array, will
* be processed.
*
* The default is off.
*/
vtkSetMacro(ProcessInputPointArray, bool);
vtkGetMacro(ProcessInputPointArray, bool);
vtkBooleanMacro(ProcessInputPointArray, bool);
///@}
///@{
/**
* Set/Get if the last value for each cell id of the point data array will be computed.
*
* The default is false.
*
* Note: Because multithreading is employed the last value computation is not deterministic.
*/
vtkSetMacro(ComputeLastValue, bool);
vtkGetMacro(ComputeLastValue, bool);
vtkBooleanMacro(ComputeLastValue, bool);
///@}
///@{
/**
* Set/Get if the min value for each cell id of the point data array will be computed.
*
* The default is false.
*/
vtkSetMacro(ComputeMin, bool);
vtkGetMacro(ComputeMin, bool);
vtkBooleanMacro(ComputeMin, bool);
///@}
///@{
/**
* Set/Get if the max value for each cell id of the point data array will be computed.
*
* The default is false.
*/
vtkSetMacro(ComputeMax, bool);
vtkGetMacro(ComputeMax, bool);
vtkBooleanMacro(ComputeMax, bool);
///@}
///@{
/**
* Set/Get if the count of the values for each cell id of the point data array will be computed.
*
* The default is false.
*/
vtkSetMacro(ComputeCount, bool);
vtkGetMacro(ComputeCount, bool);
vtkBooleanMacro(ComputeCount, bool);
///@}
///@{
/**
* Set/Get if the sum of the values for each cell id of the point data array will be computed.
*
* The default is false.
*/
vtkSetMacro(ComputeSum, bool);
vtkGetMacro(ComputeSum, bool);
vtkBooleanMacro(ComputeSum, bool);
///@}
///@{
/**
* Set/Get if the mean value for each cell id of the point data array will be computed.
*
* The default is false.
*
* Note: if ComputeMean is true, the sum and count will be computed regardless if they are on or
* not.
*/
vtkSetMacro(ComputeMean, bool);
vtkGetMacro(ComputeMean, bool);
vtkBooleanMacro(ComputeMean, bool);
///@}
protected:
vtkPointSetToOctreeImageFilter();
~vtkPointSetToOctreeImageFilter() override;
int FillInputPortInformation(int port, vtkInformation* info) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkPointSetToOctreeImageFilter(const vtkPointSetToOctreeImageFilter&) = delete;
void operator=(const vtkPointSetToOctreeImageFilter&) = delete;
vtkIdType NumberOfPointsPerCell = 1;
bool ProcessInputPointArray = false;
bool ComputeLastValue = true;
bool ComputeMin = false;
bool ComputeMax = false;
bool ComputeCount = false;
bool ComputeSum = false;
bool ComputeMean = false;
enum class FieldFunctions
{
LAST_VALUE,
MIN,
MAX,
COUNT,
SUM,
MEAN
};
template <typename TPointsArray>
struct PointSetToImageFunctor;
struct PointSetToImageWorker;
};
VTK_ABI_NAMESPACE_END
#endif // vtkPointSetToOctreeImageFilter_h
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