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/*=========================================================================
Program: Visualization Toolkit
Module: vtkKdTreeSelector.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.
=========================================================================*/
/*----------------------------------------------------------------------------
Copyright (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
// .NAME vtkKdTreeSelector - Selects point ids using a kd-tree.
//
// .SECTION Description
// If SetKdTree is used, the filter ignores the input and selects based on that
// kd-tree. If SetKdTree is not used, the filter builds a kd-tree using the
// input point set and uses that tree for selection. The output is a
// vtkSelection containing the ids found in the kd-tree using the specified
// bounds.
#ifndef vtkKdTreeSelector_h
#define vtkKdTreeSelector_h
#include "vtkFiltersSelectionModule.h" // For export macro
#include "vtkSelectionAlgorithm.h"
class vtkKdTree;
class VTKFILTERSSELECTION_EXPORT vtkKdTreeSelector : public vtkSelectionAlgorithm
{
public:
static vtkKdTreeSelector* New();
vtkTypeMacro(vtkKdTreeSelector, vtkSelectionAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// The kd-tree to use to find selected ids.
// The kd-tree must be initialized with the desired set of points.
// When this is set, the optional input is ignored.
void SetKdTree(vtkKdTree* tree);
vtkGetObjectMacro(KdTree, vtkKdTree);
// Description:
// The bounds of the form (xmin,xmax,ymin,ymax,zmin,zmax).
// To perform a search in 2D, use the bounds
// (xmin,xmax,ymin,ymax,VTK_DOUBLE_MIN,VTK_DOUBLE_MAX).
vtkSetVector6Macro(SelectionBounds, double);
vtkGetVector6Macro(SelectionBounds, double);
// Description:
// The field name to use when generating the selection.
// If set, creates a VALUES selection.
// If not set (or is set to NULL), creates a INDICES selection.
// By default this is not set.
vtkSetStringMacro(SelectionFieldName);
vtkGetStringMacro(SelectionFieldName);
// Description:
// The field attribute to use when generating the selection.
// If set, creates a PEDIGREEIDS or GLOBALIDS selection.
// If not set (or is set to -1), creates a INDICES selection.
// By default this is not set.
// NOTE: This should be set a constant in vtkDataSetAttributes,
// not vtkSelection.
vtkSetMacro(SelectionAttribute, int);
vtkGetMacro(SelectionAttribute, int);
// Description:
// Whether to only allow up to one value in the result.
// The item selected is closest to the center of the bounds,
// if there are any points within the selection threshold.
// Default is off.
vtkSetMacro(SingleSelection, bool);
vtkGetMacro(SingleSelection, bool);
vtkBooleanMacro(SingleSelection, bool);
// Description:
// The threshold for the single selection.
// A single point is added to the selection if it is within
// this threshold from the bounds center.
// Default is 1.
vtkSetMacro(SingleSelectionThreshold, double);
vtkGetMacro(SingleSelectionThreshold, double);
unsigned long GetMTime();
protected:
vtkKdTreeSelector();
~vtkKdTreeSelector();
vtkKdTree* KdTree;
double SelectionBounds[6];
char* SelectionFieldName;
bool BuildKdTreeFromInput;
bool SingleSelection;
double SingleSelectionThreshold;
int SelectionAttribute;
virtual int FillInputPortInformation(
int port, vtkInformation* info);
int RequestData(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
private:
vtkKdTreeSelector(const vtkKdTreeSelector&); // Not implemented
void operator=(const vtkKdTreeSelector&); // Not implemented
};
#endif
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