IDL Programming > Objects > Miscellaneous Object Classes > TrackBall

TrackBall

Superclasses | Creation | Methods | Version History

A TrackBall object translates widget events from a draw widget (created with the WIDGET_DRAW function) into transformations that emulate a virtual trackball (for transforming object graphics in three dimensions).

This object class is implemented in the IDL language. Its source code can be found in the file trackball__define.pro in the lib subdirectory of the IDL distribution.

Superclasses

None

Creation

See TrackBall::Init.

Properties

Objects of this class have the following properties. See TrackBall Properties for details on individual properties.

AXIS
CONSTRAIN
MOUSE

In addition, objects of this class inherit the properties of all superclasses of this class.

Methods

This class has the following methods:

TrackBall::Init
TrackBall::Reset
TrackBall::Update

In addition, this class inherits the methods of its superclasses (if any).

Version History

5.0	Introduced