Zoom Range

Set the zoom level at which a layer displays in this dialog box. You can also set the units for the layer. Zoom layering controls the display of a map layer so that it displays only when the map's zoom level falls within a preset distance.

For example, your map contains a layer of streets and a layer of postal code boundaries. When you zoom out past 30 or so kilometers, the appearance of the streets degrades. This is because the zoom (window width) is too wide to show detailed street maps.

Use Zoom layering to display the street layer only when the zoom is set to a distance that allows you to see the street detail properly, for instance, less than 8 km.

Different layers in the same map can be displayed at different zoom levels. For example, your map contains a layer of streets, a layer of county boundaries, and a layer of state boundaries. You want the streets layer to be visible only when the zoom level is less than eight miles. You want the county boundary layer to display when the zoom level falls between 20 miles and 200 miles. You want the states boundary layer to be visible only when the zoom level is greater than 100 miles.