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

[Mateusz Konieczny]

Jul 16, 2021, 20:35 by bkil.hu+Aq at gmail.com:

> This is not a matter of coding, as has been already mention in this
> thread, we don't have the 3D data at a global level (or even at a
> local level) for anyone to build a service for this with what we have.
> And it is not realistic to have the data available in the coming
> decades either.
>
The same is true for tagging shade as a property on ways.

> On Fri, Jul 16, 2021 at 8:25 PM Frederik Ramm <frederik at remote.org> wrote:
>
>>
>> Hi,
>>
>> On 7/16/21 19:42, bkil 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?
>>
>> I'm sorry to have to say it so bluntly, but no improvement can fix this
>> proposal. Whether something is in the shade or not is dependent on time
>> of day and time of year. It cannot be mapped as a constant. And even if
>> you were to qualify that ("at noon during the usually hottest month of
>> the day") it would still mean that you'd have to split up the way in
>> tons of mini pieces AND the information would be useless for someone
>> seeking shade at four in the afternoon. This proposal has so many
>> problems that it should have been thrown out after the first few
>> exchanges. It has zero chance of being accepted.
>>
>> If you want routing in the shade, your router will have to employ a
>> mathematical model during graph building to derive that property from
>> nearby shade-giving structures. Yes, that is more complex than the "few
>> lines of code" that you mention in your wiki page. But we can't pollute
>> our whole database with derived information just to save someone from
>> having to do the math.
>>
>> Bye
>> Frederik
>>
>> --
>> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"
>>
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