v.db.rim: .v (vector map creation)

[Jacinda M. Barbehenn]

>> After importing a county worth of TIGER data into RIM and performing a query 
>> that selects all roads, the .v operation, creation of a new vector map, fails
>> with a message repeated for every record on the query list : 'Warning no line
>> number (0) found for record number' <the RECNUM field value, ie. the TIGER 
>> line segment id>.


A possible explanation for your error messages:

You will get is type of message if you have moved either the master vector file
or the rim database for your county after it was created by v.in.tiger (proir to
trying to make your road map).  The path to the master vector file is hardcoded
into the rim database for a county, when it is created by v.in.tiger.  Because
v.db.rim uses the master vector file when it is generating subsequent maps (i.e.
road maps) if the master vector file is not where it's suppose to be v.db.rim
will report back to you that no line was found for recnum #######.

If this turns out to be your problem you can refer to section 4 of the "TIGER 
IN GRASS" Tutorial for help on changing the path to the master vector file.
The tutorial is available on the GRASS ftp site:  moon.cecer.army.mil.

-jacinda barbehenn
 USACERL/UI GISLAB
 mountz at muprhy.gis.uiuc.edu