The lack of public right of way information is disappointing - but it
is within OSM's capabilities to walk and map it. However, the lack of
field boundary information is a serious deficiency as these are
invaluable in practice to walkers attempting to plan, navigate, record
and publish walks - especially in the more lowland and more farmed
areas. Without the OS's right to enter onto private land without any
advance permission, OSM mappers will remain seriously hampered in any
attempt to map field boundaries. Hedges may be visible in good quality
satellite or aerial photography but fences (and especially electric
fences) will be very difficult.
Having said that, Nick's idea sounds good - probably "as good as it
gets" with the present availability of data. I don't have the relevant
IT skills but certainly support the concept!
mikh43
On 04/04/2010 11:34, Nick Whitelegg wrote:
Despite being disappointed at the lack of public right of way/field
boundary info in the OS releases, I have to admit that VectorMap
District does *look* very nice, kind of like Landranger minus contours
and footpaths.
So I'm wondering, would it be possible to create maps which combine
the VectorMap District raster layer with footpaths from OSM and
contours from SRTM (or even the OS's own contour data, if that's
better than SRTM?)
Would be a bit tricky but I'm wondering if the relevant colours in the
VectorMap District (white, and the green colour used for woods) could
be defined as transparent. A contour layer could then be defined as
the bottom layer, then overlaid by a processed (to define
transparency, as above) VectorMap District layer, then on top,
overlaid with rights of way data from OSM - and then you'd kind of
have an OpenLandranger map, perhaps. Might this work I wonder?
Nick
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