On 13/12/11 11:05, Ed Avis wrote:
In some parts of the country there are waterways traced from out-of-copyright
OS maps or from Street View tiles. Getting the shapes from OS VectorMap will
certainly be an improvement on that. In my opinion it will also be an
improvement compared to not having the water features at all.
The area to be careful about is coastline. Some of the VMD coastline
data seems older than StreetView and on quickly eroding coastlines the
more recent the reference the better. Surveying private cliff tops or
walking under crumbling cliffs against a rising tide makes surveying
awkward too.
--
Cheers, Chris
user: chillly
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