Personalize

Working with layers and map contents

The EAB Viewer application uses four different map services.   The visibility of each map service is controlled by the checkbox next to its name.  Each map service contains a series of geographic features known as map layers.  The visilbilty of the map layers cannot be changed individually.  They can only be turned on and off by turning the entire map service on or off.

To examine the map contents:

• In the Console, display the Map Contents item, if necessary, by clicking the down arrow for Contents . When Map Contents opens, only the map services are visible. 
  
• Click the plus button next to a content item to display the map layers within it.
• The check-box next to the layer indicates whether the layer is currently turned on.
• If enabled, you can click the check-box next to the layer name to turn the layer on or off. The map automatically redraws to reflect the changes in layer visibility.
• Some layers may not be visible at the current map scale (zoom level). These layers are called scale dependent. You may need to zoom the map in or out to see a particular layer displayed, even if its check-box is checked to draw.
• If layers have a plus button next to the name, you can expand the layer to display a legend for the layer. The legend may display a single symbol or multiple symbols for the layer.