Adding a new BoundaryStrategy¶

Additional Boundary Strategies are added by the boundary extension point.

Details:

• Add a boundary extension (org.locationtech.udig.ui.boundary)
• Add a new boundary to the extension
• Create a strategy class which extends the abstract IBoundaryStrategy class

Note: If a strategy has not defined a boundary it should return a null geometry and extent. Tools and views listening to the boundary service will by default treat a null geometry or extent as a world extent (see BoundaryStrategyAll)

Adding a page (optional)¶

to be completed

Getting the current Boundary¶

Access to the current Boundary is available through the workbench BoundaryService as follows:

IBoundaryService service = PlatformGIS.getBoundaryService();
ReferencedEnvelope extent = service.getExtent();

or

IBoundaryService service = PlatformGIS.getBoundaryService();
Geometry boundingGeom = service.getGeometry();

Example use of the BoundaryService can be found in BoundaryStrategyScreen and BoundaryStrategyMapCrs.