VRS::MoveFocusGroundPlateNavigation Class Reference

The MoveFocusNavigation allows to select a focus point on the screen. More...

#include <vrs/sg/movefocusgroundplatenavigation.h>

Inheritance diagram for VRS::MoveFocusGroundPlateNavigation:

List of all members.

Public Types
enum	Mode { PRESERVE_POSITION, PRESERVE_ANGLE }
	The mode determines the way how the MoveFocusNavigation achieves the goal that the selected focus point moves to the middle of the screen. More...
Public Member Functions
	MoveFocusGroundPlateNavigation (double yValOfGroundPlate=0.0, Mode mode=PRESERVE_POSITION)
	The MoveFocusNavigation needs a canvas to check the focus point validity.
void	setMode (Mode mode)
	Sets the way how the focus point moves to the middle of the screen. See Mode for more information.
Mode	getMode () const
void	setAnimationTime (double minSeconds=0.25, double maxSeconds=2.5)
	The animation time specifies the time length of the transfer from one focus point to a new one Dependent of the rotation angle, the rotation time is between minSeconds and maxSeconds.
double	getMinAnimationTime () const
double	getMaxAnimationTime () const
virtual void	onDragStart (int x, int y, SO< ButtonEvent >, MouseButtonFunctionID id)
	See navigationtechnique.h.
virtual void	onTimer (SO< TimeEvent > event, double secondsSinceLastTimeEvent)
	If the InteractionTechnique is active (i.e.
	VRS_TYPEINFO (MoveFocusGroundPlateNavigation, GroundPlateNavigation)
Static Public Attributes
static const MouseButtonFunctionID	MoveFocus

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Detailed Description

The MoveFocusNavigation allows to select a focus point on the screen.

It introduces an animation that changes the viewing direction gradually to the target focus point.

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Member Enumeration Documentation

enum VRS::MoveFocusGroundPlateNavigation::Mode

The mode determines the way how the MoveFocusNavigation achieves the goal that the selected focus point moves to the middle of the screen.

PRESERVE_POSITION: The focus-change animation does only rotate the camera. PRESERVE_ANGLE: The focus-change animation does only move the camera parallel to the terrain.

Enumerator:

PRESERVE_POSITION
PRESERVE_ANGLE

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Constructor & Destructor Documentation

VRS::MoveFocusGroundPlateNavigation::MoveFocusGroundPlateNavigation	(	double	yValOfGroundPlate = 0.0,
		Mode	mode = PRESERVE_POSITION
	)

The MoveFocusNavigation needs a canvas to check the focus point validity.

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Member Function Documentation

void VRS::MoveFocusGroundPlateNavigation::setMode

(

Mode

mode

)

Sets the way how the focus point moves to the middle of the screen. See Mode for more information.

Mode VRS::MoveFocusGroundPlateNavigation::getMode

(

)

const

void VRS::MoveFocusGroundPlateNavigation::setAnimationTime	(	double	minSeconds = 0.25,
		double	maxSeconds = 2.5
	)

The animation time specifies the time length of the transfer from one focus point to a new one Dependent of the rotation angle, the rotation time is between minSeconds and maxSeconds.

double VRS::MoveFocusGroundPlateNavigation::getMinAnimationTime

(

)

const

double VRS::MoveFocusGroundPlateNavigation::getMaxAnimationTime

(

)

const

virtual void VRS::MoveFocusGroundPlateNavigation::onDragStart	(	int	x,
		int	y,
		SO< ButtonEvent >	,
		MouseButtonFunctionID	id
	)			[virtual]

See navigationtechnique.h.

virtual void VRS::MoveFocusGroundPlateNavigation::onTimer	(	SO< TimeEvent >	event,
		double	secondsSinceLastTimeEvent
	)			[virtual]

If the InteractionTechnique is active (i.e.

has control of the view parameters) it receives user events and time events. The time event has a special meaning, because after the onTimer() call the current view parameters are finally applied. I.e. all view parameter states between two onTimer()-calls are not relevant. For convenience the time since the last time event is added, which could be alternatively calculated from the time event.

Reimplemented from VRS::InteractionTechnique.

VRS::MoveFocusGroundPlateNavigation::VRS_TYPEINFO	(	MoveFocusGroundPlateNavigation	,
		GroundPlateNavigation
	)

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Member Data Documentation

const MouseButtonFunctionID VRS::MoveFocusGroundPlateNavigation::MoveFocus [static]

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The documentation for this class was generated from the following file:

• movefocusgroundplatenavigation.h