The Compass bean is represented by the IlvJCompass class. This bean displays a
compass indicating the geographic or cartographic north of the map.
An example of the Compass is shown in Multithread Monitor .
Compass
Including the bean in an application
To include the Compass bean in your
application, write the following lines of code:
IlvJCompass compass = new IlvJCompass(); compass.setView(view);
The Compass bean then listens to view
transformation changes, and check the rotation value to display
north direction.
Customizing the appearance
You can customize many parts displayed on
the compass such as:
- The appearance of the compass needle:
compass.setCartographicNeedleStyle(IlvCompass.NEEDLE_STYLE_CROSS);
- The colors used:
compass.setCartographicBackground(Color.blue); compass.setCartographicForeground(Color.gray);