[postgis-users] Elevation Profiles

[Bruce Raup]

Andrew,

I don't know how this would fit into your system, but GMT (Generic Mapping
Tools (http://gmt.soest.hawaii.edu/), which has been mentioned here before)
can extract profiles from gridded datasets.  Relevant programs would be
xyz2grd to make a grdfile of your DEM, the grdtrack to extract profiles.
There's a GMT help mailing list too, if you have further questions.

Cheers,
Bruce

On 2004-11-24 12:13 -0700,  ANDREW WOOLEY wrote:

> Thanks for the reply. That sounds like it would be a nice solution. I am
> not sure that my methods are correct.  How does software like Topo! or
> many of the other similar products generate profiles?  They do it so
> quickly and with small data files.  I am using DEM data, but is there
> something else that will work better? Is there any documentation that
> will teach me the right way to do this?
>
> Andrew

-- 
Bruce Raup                                               Phone:  303-492-8814
National Snow and Ice Data Center, U. of Colorado, 449 UCB, Boulder, CO 80309
http://cires.colorado.edu/~braup/