[OSM-talk] Bing maps is misplaced

[Elizabeth Dodd]

On Tue, 21 Dec 2010 20:27:08 +0100
M∡rtin Koppenhoefer <dieterdreist at gmail.com> wrote:

>  A very good map
> can't be done just from orthophotos.

it is quite a legitimate way of producing maps for remote areas, and a
quick web search for orthocadastral map will lead you to scholarly
articles on the use.

My problem is the polarisation which occurs so quickly on this mailing
list. The truthful answer is that sometimes survey is best, and
sometimes other techniques are better.

http://www.fao.org/sd/ltdirect/ltforum/LTfo0010.htm

I would also point out that in the time of the Cold War the USSR
completely mapped the UK from orthophotos, with a little ground work by
the spy network. 
http://www.dailymail.co.uk/news/article-1209137/The-Soviet-road-map-shows-USSR-planned-invade-Manchester.html
I have read scholarly articles on this set of maps, but can't provide a
link at present.