a good reference are the USGS maps. their accuracy is way better compared to
tiger. they are pretty old and usually miss data from the last 10-30 years.
one download location is here http://libremap.org/
You can use any tool which supports geotiff and gpx or shape import to match
some of the
On Wed, 2009-05-06 at 19:08 +0100, Andrew Ayre wrote:
Hi! When I load OSM data into my GPS unit using mkgmap for a place in
the UK then it is accurate. When I load OSM data for Tucson, Arizona
then it is off by perhaps 100ft.
I would like to make the maps for Tucson usable, so my questions
Andrew Ayre wrote:
Hi! When I load OSM data into my GPS unit using mkgmap for a place in
the UK then it is accurate. When I load OSM data for Tucson, Arizona
then it is off by perhaps 100ft.
I would like to make the maps for Tucson usable, so my questions are:
- how do I tell where
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