[Freegis-list] Naive question

[Peter Zankl]

Hi all
I'm a newbie - sorry for my naive question.

Naive question first part:
After reading the messages in this list I can see there's
some code around. But how about the data ?
For example: If I want to display a city-map and highlight
some spots I'll find the code to handle the coordinates
(i'm able to write it myself if I have to) but I won't find
any geographical location data about streets and buildings.
Right ?

Naive question second part:
If I'd start writing code I'd prefer using a data format I can share with 
others.
Is there an XML definition around ?
I'd love something like:
<street name="5th Avenue">
   <coord long="...." lat="...." width="42m"/>
   <coord long="...." lat="...." width="42m"/>
   <coord long="...." lat="...." width="50m"/>
   <coord long="...." lat="...." width="50m"/>
</street>
The coord tags would describe the streets course.
Maybe even with the number of lanes per direction ?
Ant all the crossings... :-)
Did anyone care to write a DTD ?

Best regards
Peter Zankl