[OSM-dev] Data source for robot
Mike N.
niceman at att.net
Tue Oct 12 17:32:46 BST 2010
> For instance: I would love to see the correct symbol for roads on the
> map--an Interstate shield, a US Highway shield, or a State Road shield
> with the shape of the state. In a road relation, a URL to this is
> stored in the symbol=* key. The renderer would just find all the road
> relations a way is part of, grab their symbols, and place them on the
> map.
>
> Currently no renderer supports this.
I agree that this is in some ways easier to inspect and maintain.
Ironically, listening to a professional map maker describe their use of OSM
data, they won't touch route relations for use in placing highway shields
because they're *route relations*, not rendering hints.
>Example 1: Un-joined ways (due to chunks of a road being part of
>multiple imports, usually at county or state boundaries).
>Currently, there are hundreds of thousands of these out there, lurking
>unknown.
Frankly, they are already all known. The fix is simple - a manual
operation: just walk all county borders and stitch them together; the county
borders tell you where to go. This has already been done in many areas.
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