Re: ATM plop results...

[Michael Lindner <mikell@optonline.net>]

On Fri, 31 Aug 2001 14:19:40 -0700, Ron Forrester said:

>  I have been assuming that the color contour map is the best visual
>  piece of information for determining the effectiveness of the cell in
>  question.
>  
>  I am presuming Red == Stress -- in which case the 9pt looks pretty
>  bad.

Sorry, but that's incorrect. If you read the instructions for Plop
(http://www.eecg.toronto.edu/~lewis/plop/Plop_User.html) and also the on-line
help within the program, it explains what the contour map is. It's basically a
map of errors from high to low, normalized so that the highest point is always
blue and the lowest point is always red. The colors do not indicate stress. No
one color is good or bad. The useful number is the P-V error or better yet, RMS
error numbers in the Plop window. Not sure exactly how they're labelled, as I
don't happen to have Plop handy. They are in mm, so an error of 5e-5 is about
1/10 wave.

Clear skies.
-- 
Michael Lindner
http://home.att.net/~mikel
http://www.starastronomy.org
http://www.atmsite.org