vtkSelectVisiblePoints.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkSelectVisiblePoints_h
#define vtkSelectVisiblePoints_h
 
#include "vtkPolyDataAlgorithm.h"
#include "vtkRenderingCoreModule.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkRenderer;
class vtkMatrix4x4;
 
class VTKRENDERINGCORE_EXPORT vtkSelectVisiblePoints : public vtkPolyDataAlgorithm
{
public:
  vtkTypeMacro(vtkSelectVisiblePoints, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  static vtkSelectVisiblePoints* New();


  void SetRenderer(vtkRenderer* ren)
  {
    if (this->Renderer != ren)
    {
      this->Renderer = ren;
      this->Modified();
    }
  }
  vtkRenderer* GetRenderer() { return this->Renderer; }


  vtkSetMacro(SelectionWindow, vtkTypeBool);
  vtkGetMacro(SelectionWindow, vtkTypeBool);
  vtkBooleanMacro(SelectionWindow, vtkTypeBool);


  vtkSetVector4Macro(Selection, int);
  vtkGetVectorMacro(Selection, int, 4);


  vtkSetMacro(SelectInvisible, vtkTypeBool);
  vtkGetMacro(SelectInvisible, vtkTypeBool);
  vtkBooleanMacro(SelectInvisible, vtkTypeBool);


  vtkSetClampMacro(Tolerance, double, 0.0, VTK_DOUBLE_MAX);
  vtkGetMacro(Tolerance, double);


  vtkSetClampMacro(ToleranceWorld, double, 0.0, VTK_DOUBLE_MAX);
  vtkGetMacro(ToleranceWorld, double);

  float* Initialize(bool getZbuff);

  bool IsPointOccluded(const double x[3], const float* zPtr);

  vtkMTimeType GetMTime() override;
 
protected:
  vtkSelectVisiblePoints();
  ~vtkSelectVisiblePoints() override;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
  vtkRenderer* Renderer;
  vtkMatrix4x4* CompositePerspectiveTransform;
 
  vtkTypeBool SelectionWindow;
  int Selection[4];
  int InternalSelection[4];
  vtkTypeBool SelectInvisible;
  double DirectionOfProjection[3];
  double Tolerance;
  double ToleranceWorld;
 
private:
  vtkSelectVisiblePoints(const vtkSelectVisiblePoints&) = delete;
  void operator=(const vtkSelectVisiblePoints&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif