com.bbn.openmap.proj
Interface ProjectionLoader

All Known Implementing Classes:

BasicProjectionLoader, CADRGLoader, CartesianLoader, GnomonicLoader, LambertConformalLoader, LLXYLoader, MercatorLoader, OrthographicLoader, UTMProjectionLoader

public interface ProjectionLoader

A ProjectionLoader is a class that knows how to create projection classes for given parameters. The ProjectionFactory used to have projection classes hard-coded into it, but it now uses ProjectionLoaders to create different projections for it. It can provide the Class to use for a certain projection, and can provide a name and description to use for GUIs. The ProjectionFactory looks for these in the MapHandler.

See Also:

ProjectionFactory, BasicProjectionLoader

Method Summary

Projection	create(java.util.Properties props) Create the projection with the given parameters.
java.lang.String	getDescription() Get a description for the projection.
java.lang.String	getPrettyName() Get a pretty name for the projection.
java.lang.Class<? extends Projection>	getProjectionClass() Get a class name to use for the projection.

Method Detail

getProjectionClass

java.lang.Class<? extends Projection> getProjectionClass()

Get a class name to use for the projection. This will be used as a key in the projection factory.

getPrettyName

java.lang.String getPrettyName()

Get a pretty name for the projection.

getDescription

java.lang.String getDescription()

Get a description for the projection.

create

Projection create(java.util.Properties props)
                  throws ProjectionException

Create the projection with the given parameters.

Throws:

ProjectionException - if a parameter is missing or invalid