vtkMRMLCameraNode.h

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/*=auto=========================================================================

  Portions (c) Copyright 2005 Brigham and Women's Hospital (BWH) All Rights Reserved.

  See COPYRIGHT.txt
  or http://www.slicer.org/copyright/copyright.txt for details.

  Program:   3D Slicer
  Module:    $RCSfile: vtkMRMLCameraNode.h,v $
  Date:      $Date: 2006/03/19 17:12:28 $
  Version:   $Revision: 1.6 $

=========================================================================auto=*/

#ifndef __vtkMRMLCameraNode_h
#define __vtkMRMLCameraNode_h

// MRML includes
#include "vtkMRMLTransformableNode.h"

// VTK includes
class vtkCamera;
class vtkMatrix4x4;
class vtkRenderer;

class VTK_MRML_EXPORT vtkMRMLCameraNode : public vtkMRMLTransformableNode
{
public:
  static vtkMRMLCameraNode *New();
  vtkTypeMacro(vtkMRMLCameraNode,vtkMRMLTransformableNode);
  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;

  //--------------------------------------------------------------------------
  //--------------------------------------------------------------------------

  virtual vtkMRMLNode* CreateNodeInstance() VTK_OVERRIDE;

  virtual void ReadXMLAttributes( const char** atts) VTK_OVERRIDE;

  virtual void WriteXML(ostream& of, int indent) VTK_OVERRIDE;


  virtual void Copy(vtkMRMLNode* node) VTK_OVERRIDE;

  virtual const char* GetNodeTagName() VTK_OVERRIDE {return "Camera";};

  const char* GetActiveTag();
  virtual void SetActiveTag(const char *);

  vtkGetObjectMacro(Camera, vtkCamera);

  void SetParallelProjection(int parallelProjection);

  int GetParallelProjection();

  void SetParallelScale(double scale);

  double GetParallelScale();

  void SetViewAngle(double viewAngle);

  double GetViewAngle();

  void SetPosition(double position[3]);
  inline void SetPosition(double x, double y, double z);

  double *GetPosition();
  void GetPosition(double position[3]);

  void SetFocalPoint(double focalPoint[3]);
  inline void SetFocalPoint(double x, double y, double z);

  double *GetFocalPoint();
  void GetFocalPoint(double focalPoint[3]);

  void SetViewUp(double viewUp[3]);
  inline void SetViewUp(double vx, double vy, double vz);

  double *GetViewUp();
  void GetViewUp(double viewUp[3]);

  virtual void ProcessMRMLEvents ( vtkObject * /*caller*/,
                                   unsigned long /*event*/,
                                   void * /*callData*/ ) VTK_OVERRIDE;

  vtkGetObjectMacro(AppliedTransform, vtkMatrix4x4);
  virtual void SetAppliedTransform(vtkMatrix4x4* appliedTransform);

  enum
  {
    ActiveTagModifiedEvent = 30000,
    CameraInteractionEvent = 31000,
    ResetCameraClippingEvent = 32000,
  };

  virtual void SetSceneReferences() VTK_OVERRIDE;

  virtual void UpdateReferences() VTK_OVERRIDE;

  virtual void UpdateReferenceID(const char* oldID, const char* newID) VTK_OVERRIDE;

  void ResetClippingRange();

  enum Direction{
    Right = 0,
    Left = 1,
    Anterior = 2,
    Posterior = 3,
    Superior = 4,
    Inferior = 5
  };

  enum RASAxis{
    R = 0,
    A = 1,
    S = 2,
  };

  enum ScreenAxis{
    X = 0,
    Y = 1,
    Z = 2
  };

  void RotateTo(Direction position);

  void RotateAround(RASAxis axis, bool clockWise);

  void RotateAround(RASAxis axis, double angle = 15.);

  void TranslateAlong(ScreenAxis axis, bool positive);

  using vtkMRMLNode::Reset;
  void Reset(bool resetRotation,
             bool resetTranslation = true,
             bool resetDistance = true,
             vtkRenderer* renderer = 0);

  void SetInteracting(int);
  vtkGetMacro(Interacting, int);
  vtkBooleanMacro(Interacting, int);

  enum InteractionFlagType
  {
    None = 0,
    LookFromAxis,
    ZoomInFlag,
    ZoomOutFlag,
    CenterFlag,
    CameraInteractionFlag,
  };

  void SetInteractionFlags(unsigned int);
  vtkGetMacro(InteractionFlags, unsigned int);

protected:
  vtkMRMLCameraNode();
  ~vtkMRMLCameraNode();
  vtkMRMLCameraNode(const vtkMRMLCameraNode&);
  void operator=(const vtkMRMLCameraNode&);


  void SetCamera(vtkCamera* camera);
  void SetAndObserveCamera(vtkCamera* camera);
  vtkCamera* Camera;

  vtkMRMLCameraNode* FindActiveTagInScene(const char* tag);

  void SetInternalActiveTag(const char* id);
  char* InternalActiveTag;

  vtkMatrix4x4* AppliedTransform;

  int Interacting;
  unsigned int InteractionFlags;
};

//---------------------------------------------------------------------------
void vtkMRMLCameraNode::SetPosition(double x, double y, double z)
{
  double pos[3] = {x, y, z};
  this->SetPosition(pos);
}

//---------------------------------------------------------------------------
void vtkMRMLCameraNode::SetFocalPoint(double x, double y, double z)
{
  double pos[3] = {x, y, z};
  this->SetFocalPoint(pos);
}

//---------------------------------------------------------------------------
void vtkMRMLCameraNode::SetViewUp(double vx, double vy, double vz)
{
  double viewUp[3] = {vx, vy, vz};
  this->SetViewUp(viewUp);
}

#endif