Thanks Turbo, I appreciate your frustration with those of us who don't 
understand the map system.  


I said "sparse" because the road networks and towns in my local flying area are 
not all depicted and I was concerned that perhaps the data base being used was 
parsed to limit the number or types of elements.

Mike





________________________________
From: Tobias Bieniek <tobias.bien...@gmx.de>
To: Mike Hostage <hijack...@yahoo.com>
Cc: xcsoar-user@lists.sourceforge.net
Sent: Sat, May 14, 2011 6:28:16 PM
Subject: Re: [Xcsoar-user] Maps

Hi Mike

what exactly do you mean by sparse?! We are using most of the data from the 
openstreetmap.org project (cities and roads) and some from VMAP0. A XCM file is 
basically a zip file which includes most of the data. Topology data is saved in 
so-called Shapefiles and those are listed in the topology.tpl file. You should 
have a look at those when you want to start importing other data too.

Turbo
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