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

[Brian M. Sperlongano]

I fundamentally do not believe that shade is geospatial data, it is a
characteristic that is derived from the physical location of objects in the
world.  I do not believe that there is a way to make the proposal workable
if it includes a mapper making shade observations.  The only approach that
might be feasible is to map the physical qualities of the foliage and
structures around a path, which could then be used algorithmically to come
up with a shade calculation (as is done with the pubs in the shade concept).

On Fri, Jul 16, 2021 at 1:46 PM bkil <bkil.hu+Aq at gmail.com> wrote:

> Could you perhaps share your reasoning or what needs to be improved
> for you to accept it or could you propose a better alternative?
> Estimating the direction of sunlight around noon in the summer based
> on GPS coordinates doesn't sound like rocket science to me. Do you
> have any other concern that was not already answered in the above
> thread?
>
> On Fri, Jul 16, 2021 at 7:26 PM Brian M. Sperlongano
> <zelonewolf at gmail.com> wrote:
> >
> > I am opposed to the mapping of shade.
> >
> > While I think this is an interesting problem, I think it is simply too
> nebulous of a concept that doesn't belong in OSM.
> >
> > I believe the Australians would also object to the characterization of
> shade being on the north side of a building as well :)
> >
> > I intend to vote against it if put up for a vote.
> >
> > On Sun, Jul 4, 2021 at 2:05 AM bkil <bkil.hu+Aq at gmail.com> wrote:
> >>
> >> How would you specify the kind of shade, like whether it comes from a
> >> man_made feature or foliage (tree or hedge)? Should it be combined
> >> with seasonal=* for deciduous plants?
> >>
> >> What is the criterion with regard to time of day, like if due to the
> >> angle of the sun, it only provides shade between 11:00-13:00 (the most
> >> important time), before noon or in the afternoon? It can also come
> >> handy to know whether the pavement will still be burning to your dog
> >> if shade only reaches the highway during the afternoon.
> >>
> >> https://wiki.openstreetmap.org/wiki/Talk:Key:shade#type_of_shade
> >> https://wiki.openstreetmap.org/wiki/Proposed_features/Shade
> >>
> >> 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 and compute shading based on
> >> that, but this sounds like much more work and it is implausible in
> >> most parts of the world in the foreseeable future (and not required
> >> for solving the problem at hand to a given approximation anyway).
> >>
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