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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkHyperTreeGridCellCenters
* @brief generate points at center of hyper
* tree grid leaf cell centers.
*
*
* vtkHyperTreeGridCellCenters is a filter that takes as input an hyper
* tree grid and generates on output points at the center of the leaf
* cells in the hyper tree grid.
* These points can be used for placing glyphs (vtkGlyph3D) or labeling
* (vtkLabeledDataMapper).
* The cell attributes will be associated with the points on output.
*
* @warning
* You can choose to generate just points or points and vertex cells.
* Vertex cells are drawn during rendering; points are not. Use the ivar
* VertexCells to generate cells.
*
* @sa
* vtkCellCenters vtkHyperTreeGrid vtkGlyph3D
*
* @par Thanks:
* This class was written by Guenole Harel and Jacques-Bernard Lekien 2014
* This class was modified by Philippe Pebay, 2016
* This class was modified by Jacques-Bernard Lekien, 2018
* This work was supported by Commissariat a l'Energie Atomique
* CEA, DAM, DIF, F-91297 Arpajon, France.
*/
#ifndef vtkHyperTreeGridCellCenters_h
#define vtkHyperTreeGridCellCenters_h
#include "vtkCellCenters.h"
#include "vtkFiltersHyperTreeModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class vtkBitArray;
class vtkDataSetAttributes;
class vtkHyperTreeGrid;
class vtkPolyData;
class vtkHyperTreeGridNonOrientedGeometryCursor;
class VTKFILTERSHYPERTREE_EXPORT vtkHyperTreeGridCellCenters : public vtkCellCenters
{
public:
static vtkHyperTreeGridCellCenters* New();
vtkTypeMacro(vtkHyperTreeGridCellCenters, vtkCellCenters);
void PrintSelf(ostream& os, vtkIndent indent) override;
protected:
vtkHyperTreeGridCellCenters();
~vtkHyperTreeGridCellCenters() override;
vtkTypeBool ProcessRequest(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
int FillInputPortInformation(int, vtkInformation*) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
/**
* Main routine to process individual trees in the grid
*/
virtual void ProcessTrees();
/**
* Recursively descend into tree down to leaves
*/
void RecursivelyProcessTree(vtkHyperTreeGridNonOrientedGeometryCursor*);
vtkHyperTreeGrid* Input;
vtkPolyData* Output;
vtkDataSetAttributes* InData;
vtkDataSetAttributes* OutData;
vtkPoints* Points;
vtkPointData* InPointData;
vtkPointData* OutPointData;
vtkBitArray* InMask;
private:
vtkHyperTreeGridCellCenters(const vtkHyperTreeGridCellCenters&) = delete;
void operator=(const vtkHyperTreeGridCellCenters&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif // vtkHyperTreeGridCellCenters_h
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