org.geotools.swing.tool

Class GridCoverageLayerHelper

Object

InfoToolHelper

GridCoverageLayerHelper

All Implemented Interfaces:

EventListener, MapBoundsListener

public class GridCoverageLayerHelper
extends InfoToolHelper

Used by InfoTool to query GridCoverageLayer objects.

Since:

8.0

Author:

Michael Bedward

Field Summary

Fields inherited from class InfoToolHelper

contentRef, KEY_POSITION, layerRef

Constructor Summary

Constructors

Constructor and Description
GridCoverageLayerHelper() Creates a new helper instance.

Method Summary

Modifier and Type	Method and Description
InfoToolResult	getInfo(DirectPosition2D pos) Gets layer data at the specified position.
boolean	isSupportedLayer(Layer layer) CAlled by the helper lookup system when selecting a helper for a given layer.
void	setLayer(Layer layer) Sets the map layer for this helper.

Methods inherited from class InfoToolHelper

clearTransform, getContentToLayerTransform, getLayer, getMapContent, isTransformRequired, isValid, mapBoundsChanged, setMapContent

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GridCoverageLayerHelper

public GridCoverageLayerHelper()

Creates a new helper instance.

Method Detail

setLayer

public void setLayer(Layer layer)

Description copied from class: InfoToolHelper

Sets the map layer for this helper.

Overrides:

setLayer in class InfoToolHelper

Parameters:

layer - the map layer

isSupportedLayer

public boolean isSupportedLayer(Layer layer)

Description copied from class: InfoToolHelper

CAlled by the helper lookup system when selecting a helper for a given layer.

Specified by:

isSupportedLayer in class InfoToolHelper

Parameters:

layer - the layer

Returns:

true is this helper can handle the layer

getInfo

public InfoToolResult getInfo(DirectPosition2D pos)
                       throws Exception

Description copied from class: InfoToolHelper

Gets layer data at the specified position. If there are no feature data at the position, an empty InfoToolResult object is returned.

Specified by:

getInfo in class InfoToolHelper

Parameters:

pos - query position

Returns:

layer data

Throws:

Exception - on error querying the layer