[Tagging] Planning route in the shade during hikes either in urban areas or forests

[Frederik Ramm]

Hi,

mapping shade is not a good idea, especially since you're building a 
false dichotomy with your

> As an alternative, it would be possible to map each and every tree and
> hedge, along with its taxon, height and crown_diameter, each fence
> with fence_type and each building and other structure in 3D, each
> sidewalk with exact material and geometry

because precisely mapping shade=* would be almost the same effort, as 
you'd have to split up a way every couple of metres to specify the shade 
conditions which have now changed due to some other built structure - 
not to mention the time-of-day effect you already mentioned.

Mapping buildings and trees with their height can also give you a 
reasonable approximation of how much shade there will be in a certain 
area at a certain time of day (and year).

See http://pintsinthesun.co.uk/ for a proof of concept ;)

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"