Topic:
Attribute erase does not delete the horizon.

Description:
Basemap->Tools->Horizon Functions->Attribute Erase

Define the polygon, click MB3 (mouse button 3) ->Break and the horizon is not
erased.

Solution:
The most likely cause is that you are not selecting the correct origin(s) in the
Horizon Functions window.  

Check the origins for the horizon by posting the Origin attribute on Basemap.

Those origins need to be toggled on in the Horizon functions window. The desired
function (Attribute Erase) will be executed only on the selected origins.



Last Modified on: 14-SEP-00