vtkDistanceToCamera.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
 
#ifndef vtkDistanceToCamera_h
#define vtkDistanceToCamera_h
 
#include "vtkPointSetAlgorithm.h"
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkWrappingHints.h"       // For VTK_MARSHALAUTO
 
VTK_ABI_NAMESPACE_BEGIN
class vtkRenderer;
 
class VTKRENDERINGCORE_EXPORT VTK_MARSHALAUTO vtkDistanceToCamera : public vtkPointSetAlgorithm
{
public:
  static vtkDistanceToCamera* New();
  vtkTypeMacro(vtkDistanceToCamera, vtkPointSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetRenderer(vtkRenderer* ren);
  vtkGetObjectMacro(Renderer, vtkRenderer);


  vtkSetMacro(ScreenSize, double);
  vtkGetMacro(ScreenSize, double);


  vtkSetMacro(Scaling, bool);
  vtkGetMacro(Scaling, bool);
  vtkBooleanMacro(Scaling, bool);


  vtkSetStringMacro(DistanceArrayName);
  vtkGetStringMacro(DistanceArrayName);

  vtkMTimeType GetMTime() override;
 
protected:
  vtkDistanceToCamera();
  ~vtkDistanceToCamera() override;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
  vtkRenderer* Renderer;
  double ScreenSize;
  bool Scaling;
  int LastRendererSize[2];
  double LastCameraPosition[3];
  double LastCameraFocalPoint[3];
  double LastCameraViewUp[3];
  double LastCameraParallelScale;
  char* DistanceArrayName;
 
private:
  vtkDistanceToCamera(const vtkDistanceToCamera&) = delete;
  void operator=(const vtkDistanceToCamera&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif