Hi all,
I tryed to follow your example and it seems work well, hut my result is
quite strange.
I have a vector (rls_route) with only one category (1) and a table, with
the same name but not connected, that I link to the mail.
I imaged a new vector divided in segments, every one linked to a row in
the table...is not?
Thanks
Leonardo
-------- Messaggio Originale --------
Oggetto: Re: [GRASS-user] v.lrs.create usage?
Data: Sun, 22 Apr 2007 00:21:48 +0200
Da: Markus Neteler <neteler@itc.it>
A: grassuser@grass.itc.it
Referenze: <461281EE.1020800@itc.it>
On Tue, Apr 03, 2007 at 06:33:50PM +0200, Markus Neteler wrote:
> Hi,
> is there anyone who successfully used v.lrs.create? I am apparently
> lacking a hint to get it running. Currently it complains about
> WARNUNG: start of 1. MP >= start of 2. MP for points' cats 31, 30
> How to populate the tables correctly?
After quite some debugging (luckily it's open source!) I
figured out the trick:
The start_mp/end_mp columns must be decimal (not integer as stated
in Radim's article which is probably slightly older than the
implementation
in GRASS 6).
I have added a simple example to the manual page.
http://grass.itc.it/grass63/manuals/html63_user/v.lrs.create.html
You can try with a vector line and 3 points along this line (in
a separate map).
cheers
Markus
PS: Also updated related docs in 6.2-CVS
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On Mon, May 14, 2007 at 12:53:47PM +0200, Leonardo Lami wrote:
Hi all,
I tryed to follow your example and it seems work well, hut my result is
quite strange.
I have a vector (rls_route) with only one category (1) and a table, with
the same name but not connected, that I link to the mail.
Indeed, they are not connected for some (unknown) reason.
db.select route_lrs
shows the table contents.
Mhh.
I just tried (and fixed) v.lrs.label:
v.lrs.label route_lrs out=route_lrs_labels rstable=route_lrs labels=route_lrs_labels
d.vect route_lrs_labels
d.labels route_lrs_labels
... does something.
Also to explore:
v.lrs.segment v.lrs.where
Markus
I imaged a new vector divided in segments, every one linked to a row in
the table...is not?
Thanks
Leonardo
> -------- Messaggio Originale --------
> Oggetto: Re: [GRASS-user] v.lrs.create usage?
> Data: Sun, 22 Apr 2007 00:21:48 +0200
> Da: Markus Neteler <neteler@itc.it>
> A: grassuser@grass.itc.it
> Referenze: <461281EE.1020800@itc.it>
>
> On Tue, Apr 03, 2007 at 06:33:50PM +0200, Markus Neteler wrote:
> > Hi,
>
> > is there anyone who successfully used v.lrs.create? I am apparently
> > lacking a hint to get it running. Currently it complains about
> > WARNUNG: start of 1. MP >= start of 2. MP for points' cats 31, 30
>
> > How to populate the tables correctly?
>
> After quite some debugging (luckily it's open source!) I
> figured out the trick:
>
> The start_mp/end_mp columns must be decimal (not integer as stated
> in Radim's article which is probably slightly older than the
> implementation
> in GRASS 6).
>
> I have added a simple example to the manual page.
> http://grass.itc.it/grass63/manuals/html63_user/v.lrs.create.html
>
> You can try with a vector line and 3 points along this line (in
> a separate map).
>
> cheers
> Markus
>
> PS: Also updated related docs in 6.2-CVS
>
> _______________________________________________
> grassuser mailing list
> grassuser@grass.itc.it
> http://grass.itc.it/mailman/listinfo/grassuser
>
>
--
Markus Neteler <neteler itc it> http://mpa.itc.it/markus/
FBK-irst - Centro per la Ricerca Scientifica e Tecnologica
MPBA - Predictive Models for Biol. & Environ. Data Analysis
Via Sommarive, 18 - 38050 Povo (Trento), Italy