vtkCameraHandleSource.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkCameraHandleSource.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 vtkCameraHandleSource_h
#define vtkCameraHandleSource_h
 
#include "vtkCamera.h" // for vtkCamera
#include "vtkHandleSource.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkArrowSource;
class vtkActor;
class vtkAppendPolyData;
class vtkSphereSource;
class vtkTransform;
class vtkTransformFilter;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkCameraHandleSource : public vtkHandleSource
{
public:
  static vtkCameraHandleSource* New();
  vtkTypeMacro(vtkCameraHandleSource, vtkHandleSource);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void SetCamera(vtkCamera* cam);
 
 
  using vtkHandleSource::SetPosition;
  void SetPosition(double xPos, double yPos, double zPos) override;
  using vtkHandleSource::GetPosition;
  double* GetPosition() override;
 
 
  using vtkHandleSource::SetDirection;
  void SetDirection(double xTarget, double yTarget, double zTarget) override;
  using vtkHandleSource::GetDirection;
  double* GetDirection() override;
 
  vtkCameraHandleSource(const vtkCameraHandleSource&) = delete;
  void operator=(const vtkCameraHandleSource&) = delete;
 
protected:
  vtkCameraHandleSource();
  ~vtkCameraHandleSource() override;
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
  void RecomputeArrows();
 
  void RecomputeSphere();
 
private:
  vtkSmartPointer<vtkCamera> Camera = vtkSmartPointer<vtkCamera>::New();
  vtkNew<vtkArrowSource> UpArrow;
  vtkNew<vtkArrowSource> FrontArrow;
  vtkNew<vtkTransform> UpTransform;
  vtkNew<vtkTransformFilter> UpTransformFilter;
  vtkNew<vtkTransform> FrontTransform;
  vtkNew<vtkTransformFilter> FrontTransformFilter;
  vtkNew<vtkAppendPolyData> ArrowsAppend;
  vtkNew<vtkSphereSource> PositionSphere;
};
 
VTK_ABI_NAMESPACE_END
#endif