[GRASS-user] r.what and d.what.rast

GRASS GRASS user
1

Hi all,

My problem is about I’m obtaining different results when using d.what.rast
and r.what.

Using interactively d.what.rast on a map named “bas”, I obtain these
results:

361421.875(E) 4540953.125(N)

bas in DATOS, quant (854)

bas in DATOS, actual (854.000000)

Then I write “x” and “y” coordinates in a file named “pp3.txt”

361421 4540953 (no matter real or integer coordinates)

and when using r.what

r.what bas@DATOS < pp3.txt

result is 860

Does someone know what is wrong?

Thanks in advance

Javier Álvarez Rodríguez

Área de Hidrología del Centro de Estudios Hidrográficos del CEDEX

Paseo Bajo de la Virgen del Puerto, 3

Madrid 28007. España

+34 91 335 79 38

+34 91 335 79 22

javier.alvarez@cedex.es

2

Javier Álvarez Rodríguez wrote:

My problem is about I'm obtaining different results when using d.what.rast
and r.what.

Using interactively d.what.rast on a map named "bas", I obtain these
results:

361421.875(E) 4540953.125(N)
bas in DATOS, quant (854)
bas in DATOS, actual (854.000000)

Then I write "x" and "y" coordinates in a file named "pp3.txt"

361421 4540953 (no matter real or integer coordinates)

and when using r.what

r.what bas@DATOS < pp3.txt

result is 860

Does someone know what is wrong?

Have you tried using the exact coordinates:

361421.875 4540953.125

with r.what?

Also, can you provide the output from "g.region -p"?

--
Glynn Clements <glynn@gclements.plus.com>