manipulate camera in scene with natural view up (e.g., terrain) More...

#include <vtkInteractorStyleTerrain.h>

Inheritance diagram for vtkInteractorStyleTerrain:

Collaboration diagram for vtkInteractorStyleTerrain:

Public Types
typedef vtkInteractorStyle	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkInteractorStyleTerrain *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	OnChar ()
virtual void	Rotate ()
virtual void	Pan ()
virtual void	Dolly ()

virtual void	OnMouseMove ()
virtual void	OnLeftButtonDown ()
virtual void	OnLeftButtonUp ()
virtual void	OnMiddleButtonDown ()
virtual void	OnMiddleButtonUp ()
virtual void	OnRightButtonDown ()
virtual void	OnRightButtonUp ()

virtual void	SetLatLongLines (int)
virtual int	GetLatLongLines ()
virtual void	LatLongLinesOn ()
virtual void	LatLongLinesOff ()
Static Public Member Functions
static vtkInteractorStyleTerrain *	New ()
static int	IsTypeOf (const char *type)
static vtkInteractorStyleTerrain *	SafeDownCast (vtkObjectBase *o)
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkInteractorStyleTerrain ()
	~vtkInteractorStyleTerrain ()
void	SelectRepresentation ()
void	CreateLatLong ()
Protected Attributes
int	LatLongLines
vtkSphereSource *	LatLongSphere
vtkPolyDataMapper *	LatLongMapper
vtkActor *	LatLongActor
vtkExtractEdges *	LatLongExtractEdges
double	MotionFactor

Detailed Description

manipulate camera in scene with natural view up (e.g., terrain)

vtkInteractorStyleTerrain is used to manipulate a camera which is viewing a scene with a natural view up, e.g., terrain. The camera in such a scene is manipulated by specifying azimuth (angle around the view up vector) and elevation (the angle from the horizon).

The mouse binding for this class is as follows. Left mouse click followed rotates the camera around the focal point using both elevation and azimuth invocations on the camera. Left mouse motion in the horizontal direction results in azimuth motion; left mouse motion in the vertical direction results in elevation motion. Therefore, diagonal motion results in a combination of azimuth and elevation. (If the shift key is held during motion, then only one of elevation or azimuth is invoked, depending on the whether the mouse motion is primarily horizontal or vertical.) Middle mouse button pans the camera across the scene (again the shift key has a similar effect on limiting the motion to the vertical or horizontal direction. The right mouse is used to dolly (e.g., a type of zoom) towards or away from the focal point.

The class also supports some keypress events. The "r" key resets the camera. The "e" key invokes the exit callback and by default exits the program. The "f" key sets a new camera focal point and flys towards that point. The "u" key invokes the user event. The "3" key toggles between stereo and non-stero mode. The "l" key toggles on/off a latitude/longitude markers that can be used to estimate/control position.

See also:: vtkInteractorObserver vtkInteractorStyle vtk3DWidget

Events:: vtkCommand::InteractionEvent

Tests:: vtkInteractorStyleTerrain (Tests)

Definition at line 64 of file vtkInteractorStyleTerrain.h.

Member Typedef Documentation

typedef vtkInteractorStyle vtkInteractorStyleTerrain::Superclass

Reimplemented from vtkInteractorStyle.

Definition at line 70 of file vtkInteractorStyleTerrain.h.

Constructor & Destructor Documentation

vtkInteractorStyleTerrain::vtkInteractorStyleTerrain ( ) [protected]

vtkInteractorStyleTerrain::~vtkInteractorStyleTerrain ( ) [protected]

Member Function Documentation

static vtkInteractorStyleTerrain* vtkInteractorStyleTerrain::New ( ) [static]

Instantiate the object.

Reimplemented from vtkInteractorStyle.

static int vtkInteractorStyleTerrain::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkInteractorStyle.

virtual int vtkInteractorStyleTerrain::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkInteractorStyle.

static vtkInteractorStyleTerrain* vtkInteractorStyleTerrain::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkInteractorStyle.

virtual vtkObjectBase* vtkInteractorStyleTerrain::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkInteractorStyle.

vtkInteractorStyleTerrain* vtkInteractorStyleTerrain::NewInstance ( ) const

Reimplemented from vtkInteractorStyle.

void vtkInteractorStyleTerrain::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		`[virtual]`

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkInteractorStyle.

virtual void vtkInteractorStyleTerrain::OnMouseMove ( ) [virtual]