Date: Thu, 23 Jun 94 15:02:58 CDT
Subject: A.Davis:Visiview Modal Analysis Problem
From: johnf@ice
Cc: chingfu@cae.wisc.edu

Andy:

My user continues to have problems getting the Visiview Modal analysis
package to work. I just tried it myself and confirm at least 2 problems,
one
fatal: first, it is very difficult to get the colored areas to "stay"
where
they're supposed to. That is, say you color intensity levels 6-50 one
color, then try to paint 51- 100 another color. If you so much as touch one
spot of the first color, the whole first region gets colored by the second
regions color.
You can fudge around (waste time and maybe eventually, thru some unclear
process uncolor the first region. Give me a break.
The second problem is very bad; as you suggested, we normalized the input
to 6-248 to get away from the problem of "coloring" the last values which
you
said are for the axes or somethng. However, there are a significant number
of
regions that are uncolored - the black and the white regions--actual
values,
after normalization,are 6 for black and 247 for white. In one image they
acount for ~10% of the image, and I assume are ignored in the modes as they
are not
colored. Help!

John

John Fournelle
Electron Microprobe Lab Internet:johnf@geology.wisc.edu
Dept of Geology & Geophysics Telephone: (608) 262-7964
University of Wisconsin Fax: (608) 262-0693
1215 West Dayton Street Amateur radio: WA3BTA/9
Madison, WI 53706 (14.030, 21.030 mHz)