[GRASSLIST:5537] v.mkgrid extract grid sections

[Dylan Beaudette]

Hi Everyone,

I have used v.mkgrid (GRASS6-CVS) in the past to make vector grids, and all 
has been well. 

Example image:
http://169.237.35.250/~dylan/temp/v.mkgrid_question.png

However, this morning I tried to extract a single square from the output from 
v.mkgrid, and was only able to get either a single centroid (almost correct), 
or the entire boundary (not good). Since the boundaries do not have CATs, 
there is no way for me to extract a single boundary...

For example, I would like to extract a single grid square out of the entire 
grid, so that I can use it to control the region. 
(grid square 5 in this figure: 
http://169.237.35.250/~dylan/temp/v.mkgrid_question.png)

I have tried v.extract, and v.type with no success... Surely there must be a 
way to do this?!

Any ideas?

Thanks!

-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341