join object in mapscript

[Sean Gillies]

On Jun 29, 2005, at 3:31 AM, Klement Szabolcs wrote:

> I want use join object from mapscipt (java). Why this is not exists in
> mapscript wrapper? and when to make this? I think this is a very 
> important
> feature for real time cartogram, thematic map, or for other spatial 
> analisys.
>

Actually, since joined data is only accessible within a query, it is 
not important for cartography. We cannot classify or filter based on a 
join.

Mapscript lacks a join object because no one has needed it or asked for 
it. It is very simple to instead use one of your language's data 
connectors (jdbc or xbase) and join the data within your application. 
With mapscript you are also not limited to joins on a DBF, and can 
bring in data from practically any database.

cheers,
Sean

--
Sean Gillies
sgillies at frii dot com
http://zcologia.com