Sorry for typo's!
On Thu, 17 Jan 2008 13:02:54 +0100
[EMAIL PROTECTED] wrote:
I just wonder how was the tile-patching and dissolving
(of CORINE shapefile(s)) done, as described in
v.dissolve's help text?
Were the file's CODE_00 column different than TEXT ?
But anyway is good to make things
All I try to do is a dissolve... and for:
v.dissolve input=clc00_clean output=clc00_dissolved
col=CODE_00
I get:
DBMI-SQLite driver error:
Cannot step:
SQL logic error or missing database
ERROR: Cannot fetch data
ERROR: Unable to open vector map
[EMAIL PROTECTED] on topology
level 2
: [GRASS-user] Can't dissolve based on column?
Well... I suspected it had to do with the field type of the column
CODE_00.
Indeed... the column was TEXT.
After Daniels (Victoria) indications for a similar problem a change to
integer (using sqlitebrowser) solved the problem.
I suggest
be of type integer, and *only* integer?
~ Eric.
-Original Message-
From: [EMAIL PROTECTED] on behalf of Nikos Alexandris
Sent: Wed 1/16/2008 3:41 PM
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] Can't dissolve based on column?
Well... I suspected it had to do
Hi,
2008/1/16, Nikos Alexandris [EMAIL PROTECTED]:
My column CODE_00 was identified as TEXT, not varchar. So maybe
this was the problem (?)
I merged the tiles outside of GRASS with ogr2ogr -update -append... etc.
I did not try to merge with v.patch the tiles.
Is there a difference?
yes,
I just changed to varchar the same data (column) and I get... :
GRASS 6.3.0RC4 (Peloponnese_HGRS87):~ v.dissolve input=clc00_clean
output=clc00_final_v layer=1 column=CODE_00
DBMI-SQLite driver error:
Cannot step:
SQL logic error or missing database
ERROR: Cannot fetch data
ERROR: Unable to
areas...
(not tested v.dissolve)
Martin
~ Eric.
-Original Message-
From: [EMAIL PROTECTED] on behalf of Nikos Alexandris
Sent: Wed 1/16/2008 3:41 PM
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] Can't dissolve based
Are there plans to change the TEXT problem with respect to v.dissolve
(v.extract)?
I need to know, if it possible, due to some documentation I am
preparing.
Thank you!
On Wed, 2008-01-16 at 22:08 +0100, Martin Landa wrote:
Hi,
2008/1/16, Nikos Alexandris [EMAIL PROTECTED]:
My column