[GRASS5] Features in Grass

[Anantha Prasad/NE/USDAFS]

Dear Markus,
As I wrote to you some time back, I am trying to port a tcl/tk application
(model chooser) that builds statistical models (several kinds)  based on a
spatially linked dataset and reports outliers and predicitons in
GIS...nothing  fancy, but very useful. I am using R, Grass and Postgres on
Linux to make it fully public domain.
Here are some thoughts while trying to test the grass interface.

One of the most basic requirements in a GIS is to display a map and it's
legend
in a user defined color scheme. While Grass does OK in the latter, it is
very deficient in displaying legend.
I have the foll. thoughts ...

1. d.legend needs to be updated....there is no facility to place the legend
exactly on the screen and also control the size of the text and boxes
d.frames is not adequate..finer control is needed...I don't know how much
effort is needed here...

2. For categorical maps with more than 10 classes, where user
discrimination
among colors becomes difficult, there should be a flash utility. Based on
d.legend ... we should be able to click on any legend box and have the
corresponding class flash on the map (on-off sequence with user defined
color).
Again I don't know how much effort is needed.

3. r.info should also report statistics (min, max, mean, stddev, 1st
quartile,
median, 3rd quartile and sum) .. this should be simple.


Are you aware of any move to address these issues + your comments.

Thanks much.
Prasad
*****************************************************************
Mr. Anantha Prasad, Ecologist/GIS Specialist
USDA Forest Service, 359 Main Rd.
Delaware OHIO 43015    USA
Ph: 740-368-0103  Email: aprasad at fs.fed.us
Web: http://www.fs.fed.us/ne/delaware/index.html
Don't Miss Climate Change Tree Atlas at:
http://www.fs.fed.us/ne/delaware/atlas/index.html
******************************************************************


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