[mapguide-users] Generate map tiles from Oracle data

Jason Birch Jason.Birch at nanaimo.ca
Wed Oct 15 13:37:18 EDT 2008


Well, you'd still need to store the information in Oracle (in case you
make a change to the map definition and it invalidates your tile cache)
but using the Base Layer Group functionality in MapGuide would mean that
requests beyond the initial request would come from the tiles rather
than from Oracle.

Careful with this; if you add more than a couple base layer groups to a
map, you'll run into performance issues.  You may be better off trying a
nightly transfer of your Oracle roads table to SDF or SQLite formats for
improved read-only performance.

Jason

-----Original Message-----
From: gingerbbm
Subject: RE: [mapguide-users] Generate map tiles from Oracle data

We have MapGuide serving maps using data held in Oracle spatial tables.
So
for example we have one table holding all the roads for the UK. What we
want
to do is create a set of tiles at various zoom levels for this data so
that
we can cease to hold the information in Oracle.



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