org.gvsig.fmap.mapcontext.layers.operations

Interface InfoByPoint

All Known Subinterfaces:

GraphicLayer, VectorLayer

All Known Implementing Classes:

DefaultFLyrRaster, DefaultGraphicLayer, FLayers, FLayers, FLyrBingMaps, FLyrGoogleMaps, FLyrOSM, FLyrVect, FLyrVect, FLyrWCS, FLyrWMS, FLyrWMTS, MapSheetsGrid

public interface InfoByPoint

Interface that must be implemented by layers which support the operation "information by point".

That operation allows get meta-information from a point and an area around, of a layer.

Method Summary

Methods

Modifier and Type	Method and Description
DynObjectSet	getInfo(Point p, double tolerance) Executes a consultation about information of a point on the layer.
DynObjectSet	getInfo(Point p, double tolerance, Cancellable cancel) Deprecated. use instead getInfo(Point, double)
DynObjectSet	getInfo(Point p, double tolerance, Cancellable cancel, boolean fast) Deprecated. use instead getInfo(Point, double)

Method Detail

getInfo

DynObjectSet getInfo(Point p,
                   double tolerance,
                   Cancellable cancel)
                     throws LoadLayerException,
                            DataException

Deprecated. use instead getInfo(Point, double)

Executes a consultation about information of a point on the layer.

There is an area around the point where will got the information.

Parameters:

p - point where is the consultation

tolerance - permissible margin around the coordinates of the point where the method will got the information. Each singular implementation of this method would use it in a different way. The coordinates also depend on the implementation.

cancel - shared object that determines if this layer can continue being drawn

Returns:

a DynObjectSet. If the InfoByPoint Object is a vector layer it should return a FeatureSet.

Throws:

DataException - TODO

LoadLayerException - any exception produced using the driver.

getInfo

DynObjectSet getInfo(Point p,
                   double tolerance,
                   Cancellable cancel,
                   boolean fast)
                     throws LoadLayerException,
                            DataException

Deprecated. use instead getInfo(Point, double)

Executes a consultation about information of a point on the layer.

There is an area around the point where will got the information.

Parameters:

p - point where is the consultation

tolerance - permissible margin around the coordinates of the point where the method will got the information. Each singular implementation of this method would use it in a different way. The coordinates also depend on the implementation.

cancel - shared object that determines if this layer can continue being drawn

fast - if true try to reuse objects as much as possible to make the object iteration faster. If true, DynObjects got through the returned set must not be stored unless cloned.

Returns:

a DynObjectSet. If the InfoByPoint Object is a vector layer it should return a FeatureSet.

Throws:

DataException - TODO

LoadLayerException - any exception produced using the driver.

getInfo

DynObjectSet getInfo(Point p,
                   double tolerance)
                     throws LoadLayerException,
                            DataException

Executes a consultation about information of a point on the layer.

There is an area around the point where will got the information.

Parameters:

p - point in map coordinates where is the consultation

tolerance - permissible margin around the coordinates of the point where the method will got the information. Each singular implementation of this method would use it in a different way. The unit are in map coordinates.

Throws:

LoadLayerException

DataException