Unidata IDV Workshop for version 7.0u1  > Accessing and Displaying Data  > Miscellaneous Displays  
3.11.6 WorldWind Locations
NASA'S WorldWind program comes with a tiled location database that allows for
progressive disclosure of locations as you zoom in. The IDV makes use
of this database.
-  Start fresh by clearing all displays and data  
 and go
to a CONUS projection ( menu item).
 -  Create the 
WorldWind display control
from the  menu item. 
 -  This is just like the 
Location display control except it progressively discloses more detailed locations
as you zoom.
 -  Zoom into Colorado and watch how the display changes.
 -  Zoom into Boulder. Remember, if things go blank you just zoomed
past the surface of the Earth. Use the  menu item to reset the projection.
 -  Add a 
Background Image and change the layer
to Urban Area. 
 -  Keep zooming. 
 -  Remove the 
Background Image display control.
 -  Change projections to some other part of the world  and see what is listed. 
 
 
 
Unidata IDV Workshop for version 7.0u1  > Accessing and Displaying Data  > Miscellaneous Displays