[GRASS-user] how to change all cats in a vector line

You’re right of course. I was getting it confused with v.profile (I’ve gone through a lot of different modules searching for something that works recently).

But v.fixed.segmentpoints appears to only create points for a single cat. For the kinds of lines that represent stream courses and which are generated by r.to.vect on the cells created by v.stream.extract, r.watershed, or even r.drain, this won’t work. It only creates points for part of the stream course.

Michael


C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Head, Graduate Faculty in Complex Adaptive Systems Science
Arizona State University

voice: 480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671 (SHESC), 480-727-0709 (CSDC)

www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu

On Nov 30, 2014, at 1:22 AM, grass-user-request@lists.osgeo.org wrote:

From: Helmut Kudrnovsky <hellik@web.de>

To: <grass-user@lists.osgeo.org>

Date: November 30, 2014 at 12:01:49 AM MST

Subject: Re: [GRASS-user] how to change all cats in a vector line

I saw this but apparently it is not available for GRASS 7.

it is as I wrote it for grass 7.

doesn’t g.extension do the job?

v.fixed.segmentpoints is just a wrapper script of v.Segment

http://grass.osgeo.org/grass71/manuals/v.segment.html

v.segment is very flexible.

you have to define rules (e.g. lines with different cats). IMHO it's the way
to go if the river segments have different cats.

in v.fixed.segmentpoints I've implemented that the attribute table contains
the distance from source, but that's not implemented in v.segment.

-----
best regards
Helmut
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/how-to-change-all-cats-in-a-vector-line-tp5175575p5175693.html
Sent from the Grass - Users mailing list archive at Nabble.com.