org.mapfish.print.attribute.map

Interface MapLayer

All Known Implementing Classes:

AbstractFeatureSourceLayer, AbstractGeotoolsLayer, AbstractGridCoverage2DReaderLayer, AbstractSingleImageLayer, AbstractTiledLayer, FeatureLayer, GeoJsonLayer, GeotiffLayer, GmlLayer, GridLayer, OsmLayer, TiledWmsLayer, WmsLayer, WMTSLayer

public interface MapLayer

Encapsulates the data required to load map data for a layer and render it.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getName() The layer name.
void	render(java.awt.Graphics2D graphics2D, MfClientHttpRequestFactory clientHttpRequestFactory, MapfishMapContext transformer, boolean isFirstLayer) Render the layer to the graphics2D object.
boolean	supportsNativeRotation() Indicate if the layer supports native rotation (e.g.
com.google.common.base.Optional<MapLayer>	tryAddLayer(MapLayer newLayer) Attempt to add the layer this layer so that both can be rendered as a single layer.

Method Detail

tryAddLayer

com.google.common.base.Optional<MapLayer> tryAddLayer(MapLayer newLayer)

Attempt to add the layer this layer so that both can be rendered as a single layer.

For example: 2 WMS layers from the same WMS server can be combined into a single WMS layer and the map can be rendered with a single WMS request.

Parameters:

newLayer - the layer to combine with this layer. The new layer will be rendered below the current layer.

Returns:

If the two layers can be combined then a map layer representing the two layers will be returned. If the two layers cannot be combined then Option.absent() will be returned.

render

void render(java.awt.Graphics2D graphics2D,
          MfClientHttpRequestFactory clientHttpRequestFactory,
          MapfishMapContext transformer,
          boolean isFirstLayer)

Render the layer to the graphics2D object.

Parameters:

graphics2D - the graphics object.

clientHttpRequestFactory - The factory to use for making http requests.

transformer - the map transformer containing the map bounds and size

isFirstLayer - true indicates this layer is the first layer in the map (the first layer drawn, ie the base layer)

supportsNativeRotation

boolean supportsNativeRotation()

Indicate if the layer supports native rotation (e.g. WMS layers with the "angle" parameter).

Returns:

True if the layer itself takes care of rotating.

getName

java.lang.String getName()

The layer name.