A legend displays the meaning of the symbols used to represent features on the map. Legends consist of examples of the symbols on the map with labels containing explanatory text. Legends have patches that show examples of the map symbols. Often, legend patches are points, straight lines, or rectangles that match the map symbols. The layer author may have customized the legend patches; for example, some areas are represented with patches of another shape, or rivers are drawn with a sinuous rather than a straight line.
- Open the map whose legend you want to view in the map viewer.
- Click Details and click Legend .
The legend opens in the side pane and displays information about each layer that is visible at the current map scale or time range. Not all layers contain legend information.
Hide a layer in the legend
Sometimes you do not want a layer to appear in the legend. For example, if your map focuses on unemployment rates for a county, you may want your legend to only show employment symbols and not street symbols and other reference data you've included in the map. If you own the layer, you can save the legend property with the item so the layer is hidden in map legends by default.
- Open the map in which you want to hide a layer in the legend.
- Click Details and click Contents.
- Browse to the sublayer you want to hide.
- Click the arrow to the right of the layer name and click Hide in Legend.
- Click the arrow to the right of the layer name and click Show in Legend if you want the layer you previously hid to appear in the legend.
- If you own the layer and want the layer to appear hidden in map legends by default, click Save Layer.
Considerations for viewing a legend
- Basemaps, image layers, OGC WMS layers, and layers that are not accessible externally do not contain legend information.
- Legends for map layers may not match the legend in the map viewer. This typically happens when the legend in the map viewer becomes out of sync with the symbology in the layer. For example, the layer author has changed the symbology in the service but the map viewer still displays the older symbology. Often, the map viewer displays the latest legend after 30 minutes. Layer authors may need to clear the REST cache of the map service in order to see the legend updates in the map viewer. Internet Explorer 7 may store legend information infinitely. The layer author can trigger an update to the legend by changing the layers, for example, by renaming a layer or reordering the layers.