class TGLPlotCamera


 Camera for TGLPlotPainter and sub-classes.

Function Members (Methods)

public:

virtual	~TGLPlotCamera()
void	Apply(Double_t phi, Double_t theta) const
static TClass*	Class()
Int_t	GetHeight() const
Int_t	GetWidth() const
Int_t	GetX() const
Int_t	GetY() const
virtual TClass*	IsA() const
void	Pan(Int_t px, Int_t py)
void	RotateCamera(Int_t px, Int_t py)
void	SetCamera() const
void	SetViewport(const TGLRect& vp)
void	SetViewVolume(const TGLVertex3* box)
virtual void	ShowMembers(TMemberInspector& insp) const
void	StartPan(Int_t px, Int_t py)
void	StartRotation(Int_t px, Int_t py)
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
	TGLPlotCamera()
Bool_t	ViewportChanged() const
void	ZoomIn()
void	ZoomOut()

private:

TGLPlotCamera&	operator=(const TGLPlotCamera&)
	TGLPlotCamera(const TGLPlotCamera&)

Data Members

protected:

TArcBall	fArcBall
TGLVertex3	fCenter
TPoint	fMousePos
Double_t	fOrthoBox[4]
Double_t	fShift
TGLVector3	fTruck
TGLRect	fViewport
Bool_t	fVpChanged
Double_t	fZoom

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

TGLPlotCamera()

Construct camera for plot painters.

void SetViewport(const TGLRect& vp)

Setup viewport, if it was changed, plus reset arcball.

void SetViewVolume(const TGLVertex3* box)

'box' is the TGLPlotPainter's back box's coordinates.
   fCenter[0] = (box[0].X() + box[1].X()) / 2;
   fCenter[1] = (box[0].Y() + box[2].Y()) / 2;
   fCenter[2] = (box[0].Z() + box[4].Z()) / 2;
   const Double_t maxDim = box[1].X() - box[0].X();
   fOrthoBox[0] = maxDim;
   fOrthoBox[1] = maxDim;
   fOrthoBox[2] = -100 * maxDim;//100?
   fOrthoBox[3] = 100 * maxDim;
fShift = maxDim * 1.5;

void StartRotation(Int_t px, Int_t py)

User clicks somewhere (px, py).

void RotateCamera(Int_t px, Int_t py)

Mouse movement.

void StartPan(Int_t px, Int_t py)

User clicks somewhere (px, py).

void Pan(Int_t px, Int_t py)

Pan camera.

void SetCamera() const

Viewport and projection.

void Apply(Double_t phi, Double_t theta) const

Applies rotations and translations before drawing

Int_t GetX() const

viewport[0]

Int_t GetY() const

viewport[1]

Int_t GetWidth() const

viewport[2]

Int_t GetHeight() const

viewport[3]

void ZoomIn()

Zoom in.

void ZoomOut()

Zoom out.

TGLPlotCamera(const TGLPlotCamera& )

TGLPlotCamera& operator=(const TGLPlotCamera& )

virtual ~TGLPlotCamera()

{}

Bool_t ViewportChanged() const

{return fVpChanged;}