MapTools.org

[maplab-users] Re: [Fwd: query]

Jeff McKenna mckenna@dmsolutions.ca
Fri, 18 Jul 2003 09:40:08 -0400
Hi Paul,

Yes it is possible to query the dbf files of shapefiles using MapLab. 
Simply add a TEMPLATE in the CLASS object of the layer that you want to 
query.  MapLab looks for the word "TEMPLATE" in the class object.  The 
template value can be anything, the file does not exist so just make up 
something. e.g.:

   LAYER
     NAME "oceans"
     STATUS ON
     DATA "ocean75m"
     TYPE POLYGON
     UNITS METERS
     CLASS
       COLOR 0 0 200
       TEMPLATE "ttt"
     END
   END

obviously "ttt" is not a valid file, but MapLab just looks for the 
presence of TEMPLATE in the CLASS object.  Hope this helps.

By the way, any further MapLab questions should be sent to the MapLab 
user list (http://lists.dmsolutions.ca/mailman/listinfo/maplab-users) so 
that developers and other MapLab users can help you.  Thanks.


Jeff





> 
> Can you point me to a resource where I can get some information on how to
> add query layers using maplab? Is it possible to query the dbf files of
> shapefiles using maplab?
> 
> Paul
> 
> 
> 
> 


-- 
Jeff McKenna
GIS Specialist
DM Solutions Group Inc.
http://www.dmsolutions.ca



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