[GRASS-user] grass

[Jachym Cepicky]

Hi,
that is not an error - you just did not calculate anything, because of

"WARNING: 2 points of given category missing"

are you sure, there are points with categories 1 and 2 in your input
file?

j

ec.jkd at tpcsed.com píše v Po 10. 12. 2007 v 15:15 +0530:
> hi,
>   while doing shortest path in grass i get the below error:
> echo "1 1 2" | v.net.path mydgn_net afcol=forward abcol=backward out=myp
> Building graph:
> Registering arcs ...  100%
> Flattening the graph ... done.
> Graph was built.
> WARNING: 8032 points without category (nfield: 2).
> WARNING: No point with category 1
> WARNING: No point with category 2
> Attributes:
>   cat  - path unique category assigned by module
>   id   - path id (read from input)
>   fcat - from point category
>   tcat - to point category
>   sp - result status:
>        0 - OK, path found
>        1 - node is not reachable
>        2 - point of given category does not exist
>   cost - travelling costs (on the network, not to/from network)
>   fdist - the distance from first point to the network
>   tdist - the distance from the network to second point
> WARNING: 2 points of given category missing
> Building topology ...
> 0 primitives registered
> 0 areas built
> 0 isles built
> Attaching islands:
> Attaching centroids: Topology was built.
> Number of nodes     :   0
> Number of primitives:   0
> Number of points    :   0
> Number of lines     :   0
> Number of boundaries:   0
> Number of centroids :   0
> Number of areas     :   0
> Number of isles     :   0
> 
> Kindly, assisty me with this
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user
-- 
Jachym Cepicky
e-mail: jachym.cepicky at gmail.com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Toto je =?UTF-8?Q?digit=C3=A1ln=C4=9B?=
	=?ISO-8859-1?Q?_podepsan=E1?= =?UTF-8?Q?_=C4=8D=C3=A1st?=
	=?ISO-8859-1?Q?_zpr=E1vy?=
Url : http://lists.osgeo.org/pipermail/grass-user/attachments/20071211/ebcc4895/attachment.bin