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The Layers list allows you to turn data layers
on and off, select data to learn more about, and open or
close folders to view or hide data layers.
When a layer is highlighted and the radio button is filled
in, it means that it is active.
- Click on the circle to make a layer active.
- Some tools ( i.e. Identify and Query) require layers
to be active in order to use them.
Please note that checked layers
that are higher on the list will draw over those below
them. This can cause confusion
if two layers cover the same area. For example, if you check
Breast Cancer for 1982-1990 AND Breast Cancer for 1990-1998,
then only the one higher on the list will be visible until
it is unchecked. When the Auto Refresh box is checked, your
maps will refresh automatically when you turn layers on and
off. If you wish to control when the map refreshes, uncheck
the Auto Refresh box and click the Refresh Map button when
you have made your selections.
The Legend displays the symbols for the data layers
you have checked. |
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. Additional information about the
feature will appear in the Map Information tab at the bottom
of the screen.
