[osmosis-dev] Using Osmosis for non OSM data and in other projections - remove validation checks?

[Nick Whitelegg]

Hi,

As part of preparing data for a England-and-Wales wide Android walking app (opentrail) which uses the mapsforge library, I am making extensive use of Osmosis to select the OSM data I need and to merge OSM data with Ordnance Survey LandForm Panorama contours, converted to OSM format. Because OS data is supplied as British National Grid (BNG) tiles, I need to prepare BNG tiles of OSM data so I can easily combine the OSM data with the OS contours.

However, osmosis rejects coordinates outside of the range -180 to 180. I can get round this by using units of tens of thousands of metres rather than metres, but I still think that osmosis has a lot of potential uses with data in other projections. What would people's attitudes be to removing the restriction that lat/lon has to be between -180 and 180, due to the possibility that the data is in another projection?

Another validation that could be removed is the check on the timestamp and version. Again as part of the above process, I prepare OSM files of the OS LandForm Panorama data and have to give them a fake timestamp and version but it would be nice not to have to do this. Opinions on this?

Thanks,
Nick
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