Vincent Pottier wrote:
Claims are being made that the French data is more up to date, but if it is
not being properly geo-referenced and is producing poor quality data should it
be allowed in? returning to the example, in the absence of evidence that the
building IS split into multiple units it SHOULD be drawn as a single entity?
What is the "unit" ? Something used for 3D drawing ? Something used for
statistics ? Something used for a purpose I don't even imagine ?
And tidying up would mean aligning it with the bing footprint?
Sometimes the Cadastre is better than Bing, Sometimes Bing is better...
We have the chance to have put in OSM a network of survey points. It is our best
reference... but hard to use for newbies...
A lot of work was done making the imagery position accurate and we need
something as a reference point? DETAILS such as the layout of a church do
require more information than can be discerned just from the imagery and data
such as from Cadastre may well contain more detail, but personally I still need
some better proof that there are problems with the positional detail of the
imagery? I have not found any problems in the UK when comparing between
different sources. And the shape of buildings I looked at in France where in
places very much different to adjacent buildings which matched the imagery :(
( I was trying to use Google to take a walk around the church so I could see the
buttresses - I have to admit to using it in the UK to remind me of details like
that which I've not recorded properly, and certainly that level of detail is
missing on streetview )
--
Lester Caine - G8HFL
-----------------------------
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Rainbow Digital Media - http://rainbowdigitalmedia.co.uk
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