[Tilesathome] Wood partially not rendered correctly

Matthias Julius lists at julius-net.net
Thu Feb 19 17:30:10 GMT 2009


Greg Troxel <gdt at ir.bbn.com> writes:

> Matthias Julius <lists at julius-net.net> writes:
>
>> I don't think you did anything wrong.  This is caused by the way t at h
>> and the API work.  When a client renders a tileset it downloads the
>> OSM data for the area of a z12 tile plus a safety margin from the
>> API.  The API returns all objects that have at least one node inside
>> the downloaded bounding box.  Those 7 tiles in the center of your wood
>> are completely enclosed by the outline of the wood.  Therefore the API
>> won't return it and the client won't know about it.
>
> My immediate reaction is that getting only data for the tile area is
> incorrect; one also needs all ways that denote areas if any of those
> areas overlap with the tile.

Sure, just bug the API(/ROMA/TRAPI/XAPI) coders that they make their APIs
return area features that enclose the bounding box.  

I guess it is unlikely for the main API to grow this functionality,
but for the others this might be possible.

Matthias




More information about the Tilesathome mailing list