vtkFrustumSelector.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkFrustumSelector.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.
 
=========================================================================*/
#ifndef vtkFrustumSelector_h
#define vtkFrustumSelector_h
 
#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkSelector.h"
 
#include "vtkSmartPointer.h" // for smart pointer
 
class vtkDataSet;
class vtkPlanes;
class vtkSignedCharArray;
 
class VTKFILTERSEXTRACTION_EXPORT vtkFrustumSelector : public vtkSelector
{
public:
  static vtkFrustumSelector* New();
  vtkTypeMacro(vtkFrustumSelector, vtkSelector);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void Initialize(vtkSelectionNode* node) override;
 
  vtkMTimeType GetMTime() override;
 
 
  void SetFrustum(vtkPlanes*);
  vtkPlanes* GetFrustum();
 
protected:
  vtkFrustumSelector(vtkPlanes* f = nullptr);
  ~vtkFrustumSelector() override;
 
  vtkSmartPointer<vtkPlanes> Frustum;
 
  bool ComputeSelectedElements(vtkDataObject* input, vtkSignedCharArray* insidednessArray) override;
 
  void CreateFrustum(double vertices[32]);
 
  void ComputeSelectedPoints(vtkDataSet* input, vtkSignedCharArray* pointsInside);
  void ComputeSelectedCells(vtkDataSet* input, vtkSignedCharArray* cellsInside);
 
  int OverallBoundsTest(double bounds[6]);
 
private:
  vtkFrustumSelector(const vtkFrustumSelector&) = delete;
  void operator=(const vtkFrustumSelector&) = delete;
};
 
#endif