Hi, 2008/1/16, Patton, Eric <[EMAIL PROTECTED]>: > Just a clarification...so it's the case that the column parameter in > v.dissolve must always be of type integer, and *only* integer?
I don't see any reason why v.dissolve should support only integer columns as a key used to dissolve 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: [email protected] > Subject: Re: [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 a clarification about that in the man page of v.dissolved. > > Greets... > > P.S. Thank you Daniel > On Wed, 2008-01-16 at 16:52 +0100, > [EMAIL PROTECTED] wrote: > > 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 > > ERROR: Vector map <clc00_dissolved> not found in current > > mapset > > _______________________________________________ > > grass-user mailing list > > [email protected] > > http://lists.osgeo.org/mailman/listinfo/grass-user > -- > Nikos Alexandris > . > Department of Remote Sensing & Landscape Information Systems > Faculty of Forestry & Environmental Sciences, Albert-Ludwigs-University > Freiburg > . > Tel. +49 (0) 761 203 3697 / Fax. +49 (0) 761 203 3701 / Skype: > Nikos.Alexandris > . > Address: Tennenbacher str. 4, D-79106 Freiburg i. Br., Germany > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > -- Martin Landa <[EMAIL PROTECTED]> * http://gama.fsv.cvut.cz/~landa * _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
