Topic:
What are some good examples of using the .OR. and .AND. options in Combine Grids?

Description:
        

Solution:
A good example of when to use the .OR. option is when combining a surface that
truncates against an unconformity and the unconformity surface so as to make a
single surface to contour.

The .AND. option is an "intersect" operation versus .OR. which is a "union" 
operation. An example: I have a time map covering a large area, and an 
amplitude map of an amplitude anomaly covering a smaller area within the 
large time map extent. If I wish to overlay the time contours onto the amplitude 
map, the contours would extend way beyond the boundaries of the amplitude map. I 
could create a new time map limited to the area of interest by using the .AND. 
operation.
 



Last Modified on: 04-DEC-98