org.eclipse.nebula.widgets.geomap.jface

Interface LocationProvider

public interface LocationProvider

Interface to provide a location for a given element, as a PointD with longitude, latitude coordinates.

Method Summary

Modifier and Type	Method and Description
PointD	getLonLat(java.lang.Object element) Returns the longitude, latitude for the element or null if this elements doesn't have a location.
boolean	setLonLat(java.lang.Object element, double lon, double lat) Set the longitude, latitude for the element.

Method Detail

getLonLat

PointD getLonLat(java.lang.Object element)

Returns the longitude, latitude for the element or null if this elements doesn't have a location.

Parameters:

element - the element for which to return the corresponding geo-location

Returns:

the geo-location

setLonLat

boolean setLonLat(java.lang.Object element,
                  double lon,
                  double lat)

Set the longitude, latitude for the element. Returns true if the change occurred, i.e. the operation was legal. Use setLonLat(element, getLonLat(element).x, getLonLat(element).y) to check without side-effect.

Parameters:

element - the element for which to set the geo-location

lon - the new longitude

lat - the new latitude

Returns:

true if the geo-location could be set, or false, if the location is read-only