[GRASS-user] v.out.ascii output modification

Maxime Phaneuf maxime.phaneuf at usherbrooke.ca
Wed Dec 16 09:11:38 EST 2009


Hello everybody,

As the title says, I'm trying to use r.profile with the output of r.drain. I
know I cannot use directly the output, and instead I need to transform
r.drain to a vector line and transform it to a ascii point file
(v.out.ascii).

So, when the output form r.drain has been transformed to a ascii point file,
I cannot use it because there is a third column (the category) preventing me
from piping it into r.profile. I tried deleting the category but this
doesn't work.

I can always use awk to delete characters in the ascii file that I don't
need, but I was wondering if there is a quicker way to do it.

Basically what I need is to get from this ascii point file:
X   Y     CAT
xxx|yyy|1
xxx|yyy|1

to:

X    Y
xxx|yyy

without using a awk-like method.

Is it possible?

Thank you,
Maxime
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