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/*=========================================================================
Program: Visualization Toolkit
Module: vtkExtractSelection.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 vtkExtractSelection
* @brief extract a subset from a vtkDataSet.
*
* vtkExtractSelection extracts some subset of cells and points from
* its input dataset. The dataset is given on its first input port.
* The subset is described by the contents of the vtkSelection on its
* second input port. Depending on the content of the vtkSelection,
* this will use either a vtkExtractSelectedIds, vtkExtractSelectedFrustum
* vtkExtractSelectedLocations or a vtkExtractSelectedThreshold to perform
* the extraction.
* @sa
* vtkSelection vtkExtractSelectedIds vtkExtractSelectedFrustum
* vtkExtractSelectedLocations vtkExtractSelectedThresholds
*/
#ifndef vtkExtractSelection_h
#define vtkExtractSelection_h
#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkExtractSelectionBase.h"
class vtkExtractSelectedBlock;
class vtkExtractSelectedFrustum;
class vtkExtractSelectedIds;
class vtkExtractSelectedLocations;
class vtkExtractSelectedRows;
class vtkExtractSelectedThresholds;
class vtkProbeSelectedLocations;
class vtkSelection;
class vtkSelectionNode;
class VTKFILTERSEXTRACTION_EXPORT vtkExtractSelection : public vtkExtractSelectionBase
{
public:
static vtkExtractSelection *New();
vtkTypeMacro(vtkExtractSelection, vtkExtractSelectionBase);
void PrintSelf(ostream& os, vtkIndent indent);
//@{
/**
* When On, this returns an unstructured grid that outlines selection area.
* Off is the default. Applicable only to Frustum selection extraction.
*/
vtkSetMacro(ShowBounds,int);
vtkGetMacro(ShowBounds,int);
vtkBooleanMacro(ShowBounds,int);
//@}
//@{
/**
* When On, vtkProbeSelectedLocations is used for extracting selections of
* content type vtkSelection::LOCATIONS. Default is off and then
* vtkExtractSelectedLocations is used.
*/
vtkSetMacro(UseProbeForLocations, int);
vtkGetMacro(UseProbeForLocations, int);
vtkBooleanMacro(UseProbeForLocations, int);
//@}
protected:
vtkExtractSelection();
~vtkExtractSelection();
virtual int FillInputPortInformation(int port, vtkInformation* info);
//sets up empty output dataset
virtual int RequestDataObject(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
// runs the algorithm and fills the output with results
virtual int RequestData(vtkInformation *,
vtkInformationVector **,
vtkInformationVector *);
// used for composite, non-hierarhical input.
vtkDataObject* RequestDataInternal(
unsigned int composite_index,
vtkDataObject* non_composite_input, vtkSelection* sel,
vtkInformation* outInfo);
// Used for hierarchical input.
vtkDataObject* RequestDataInternal(
unsigned int composite_index,
unsigned int level,
unsigned int index,
vtkDataObject* non_composite_input, vtkSelection* sel,
vtkInformation* outInfo);
// called for non-composite input or for a block in a composite dataset.
vtkDataObject* RequestDataFromBlock(vtkDataObject* input,
vtkSelectionNode* sel, vtkInformation* outInfo);
vtkExtractSelectedBlock* BlockFilter;
vtkExtractSelectedFrustum* FrustumFilter;
vtkExtractSelectedIds* IdsFilter;
vtkExtractSelectedLocations* LocationsFilter;
vtkExtractSelectedRows* RowsFilter;
vtkExtractSelectedThresholds* ThresholdsFilter;
vtkProbeSelectedLocations* ProbeFilter;
int UseProbeForLocations;
int ShowBounds;
private:
vtkExtractSelection(const vtkExtractSelection&) VTK_DELETE_FUNCTION;
void operator=(const vtkExtractSelection&) VTK_DELETE_FUNCTION;
};
#endif
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