YSK that if you are planning an outdoor event, you can check where the shade and shadows will fall on a given day and time

https://shademap.app/

"WHY": It can help you plan for the best places to sit, take photos, etc.


A friend is planning an event this summer and wanted to find a shady spot in a large park for people to sit. I remembered seeing this project, and it helped in my use case

Here is the website: https://shademap.app/

Here is the developer's GitHub with some code, API, and sample projects: https://github.com/ted-piotrowski

Here is an article I found by Bellingcat talking about the features: https://bellingcat.gitbook.io/toolkit/more/all-tools/shademap

There is also this other tool ShadowMap (app.shadowmap.org), but the data quality wasn't great for the places that I tried.

383 points · 15 comments · view on lemmy.world

15 Comments

Resonosity@lemmy.dbzer0.com · 25 pts · 1y (2 replies)

As someone that's a design engineer for the solar industry, this might actually be a useful tool for me! Thanks for putting it together!

b_tr3e@feddit.org · -4 pts · 1y (1 reply)

As a design engineer you don't have CAD software that can predict shading? It's a pretty trivial function, actually. Also, you should know the procedure to construct proper shadows, but sure, that takes a lot more time than having them done by CAD.

Resonosity@lemmy.dbzer0.com · 13 pts · 1y

you don't have CAD

I do, but I'm an design engineer not a designer so my CAD skills are just basic. And I have better things to do with my time than learn CAD beyond the things I do now just to do what this tool does. My firm has designers that are better equipped for that kind of work, so there isn't really a need.

pretty trivial function

How so?

you should know the procedure

And you should know how to suck me from behind.

henfredemars@infosec.pub · 25 pts · 1y

Shockingly accurate even for my unremarkable small town. It even has the tree shadows!

200ok@lemmy.world · 19 pts · 1y

Thank you!!!

I've been looking for a way to find out how much sunlight certain spots get at specific times of year.

Internet, today was a good day ❤️

fmstrat@lemmy.nowsci.com · 12 pts · 1y (2 replies)

Also check out https://lightningmaps.org/ 😉

otters_raft@lemmy.ca · 6 pts · 1y (1 reply)

I'll have to remember this one during the next storm

Hule@lemmy.world · 3 pts · 1y

I use blitzortung.

shalafi@lemmy.world · 8 pts · 1y

Damned slick! Seems right on the money with my house, given variations for small landscaping changes.

popcorp@discuss.tchncs.de · 8 pts · 1y

This is so amazing. And accurate. Thanks!

acockworkorange@mander.xyz · 6 pts · 1y

Or you could call the Shädowmän.

otter@lemmy.dbzer0.com · 4 pts · 1y

Oh, hey, it's me: your otter cousin, cousin.

QuarterSwede@lemmy.world · 4 pts · 1y

Pretty neat. Even gets the mountain shadows.

aramis87@fedia.io · 4 pts · 1y

This is really cool - thank you for sharing!

lautre@jlai.lu · 3 pts · 1y

I used the tool when looking for a house to buy.

I was looking in a mountainous area so the amount of sun a house gets in winter can vary quite a lot. Even a few hundred meters can make a huge difference in some cases.