this post was submitted on 08 Sep 2026
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[–] merc@sh.itjust.works 7 points 2 weeks ago (3 children)

Also, unless you're using a paper map, you should never have to see a flat map projection.

We all carry around supercomputers in our pockets that can easily do the math to render a globe. If we want to use a bigger screen, they have even more powerful processors.

Does anybody actually use paper maps at all anymore? I guess sometimes people mount them on the wall and point at them, but I mean using a map to calculate distance, find a path, etc.

What's ridiculous is that even though computers should be rendering the world as a globe, some websites (even Google Maps) still sometimes use Mercator. It's especially ridiculous when it's something like a flight-tracking website where the flight is going in a straight line on the globe, but is rendered as a curved path on a stupid map projection.

[–] hegus@lemmy.world 10 points 2 weeks ago (1 children)

I mean the good thing about a flat projection is that you can see everything at once. When you're comparing data points of different countries it is nice to see them on a flat map. Neither the actual size nor the angles really matter in that case.

[–] merc@sh.itjust.works 2 points 2 weeks ago (1 children)

When you’re comparing data points of different countries

Why would you need a map for that? That seems like something where a table is more useful.

[–] Axolotl_cpp@feddit.it 2 points 2 weeks ago* (last edited 2 weeks ago)

It's more appealing visually and generally easier to navigate because you don't need to search a country on the list, it's easier to find it on a map

To be noted: usually those maps are paired with a table and aren't made to give precise information

[–] HeyThisIsntTheYMCA@lemmy.world 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Does anybody actually use paper maps at all anymore

if i'm going hiking, yes. i don't trust the phone to maintain a connection in the wild.

[–] merc@sh.itjust.works 2 points 2 weeks ago

If you're going hiking, I'm betting your map isn't a world map, therefore the projection isn't an issue.

[–] michaelmrose@lemmy.world 2 points 2 weeks ago (1 children)

For most navigation people are going less than 50 miles projecting it onto a virtual globe would be pointless and not in any way shape or form beneficial.

[–] merc@sh.itjust.works 1 points 2 weeks ago (1 children)

So, you're saying a more-or-less flat section of a globe should seem flat. Ok... and?

[–] michaelmrose@lemmy.world 1 points 1 week ago (1 children)

You said

"that even though computers should be rendering the world as a globe,"

They shouldn't a projection is actually useful for most people in most instances. Your screen is flat and rendering a 3D image within it would actually mean you can use less of it and see less information in a more confusing view which would ultimately be weird and pointless to the people viewing mostly what is in fact stylized data like which roads cross.

[–] merc@sh.itjust.works 1 points 1 week ago (1 children)

Your screen is flat, and the surface of the planet is essentially flat. If a program starts with a mercator projection and zooms in on a particular area it's always going to be a distorted view.

rendering a 3D image within it would actually mean you can use less of it and see less information in a more confusing view

Whaat? That's nonsense.

[–] michaelmrose@lemmy.world 1 points 1 week ago (1 children)

Why do you think literally every mapping app on earth shows a projection onto the given x pixels by y pixels rather than a 3D rendering of a curved space again?

[–] merc@sh.itjust.works 1 points 1 week ago (1 children)
[–] michaelmrose@lemmy.world 1 points 2 days ago