GridCoverageLayerHelper (Geotools modules 31-SNAPSHOT API)

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 Description

GridCoverageLayerHelper()
Creates a new helper instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`InfoToolResult`	`getInfo(Position2D 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(Position2D 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