[GRASS-user] crossing XY points over a raster map

GRASS GRASS user
1

Dear all,

I have a raster map on GRASS and a table (in ascii format) with XY coordinates.
I would like to know how can I import these XY points in my grass database, and
hown can I proceed to overlap my points over my raster map and aquire the raster value
as an attribut of my XY points.

Any help are wellcome.

Kind regards,

miltinho

2

import the ascii table with v.in.ascii [1]

store the values from raster to the new vector file database with
v.what.rast [2]

[1] http://grass.osgeo.org/grass64/manuals/html64_user/v.in.ascii.html
[2] http://grass.osgeo.org/grass64/manuals/html64_user/v.what.vect.html

j

2008/8/1 Milton Cezar Ribeiro <miltinho.astronauta@gmail.com>:

Dear all,

I have a raster map on GRASS and a table (in ascii format) with XY
coordinates.
I would like to know how can I import these XY points in my grass database,
and
hown can I proceed to overlap my points over my raster map and aquire the
raster value
as an attribut of my XY points.

Any help are wellcome.

Kind regards,

miltinho
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