Mapthematics Forums

Growing up in the American educational system (many school districts around the west) long ago, I never encountered any shortage of world maps in classrooms. There was a certain amount of organic standardization, but it’s also true that, back then, there were no governing bodies or budgetary incent...

The marketing is a necessary evil. I’m also allergic to marketing, but if that’s what it takes to get people to understand that, no, Gall–Peters isn’t the only equal-area projection in existence, then so be it. Education instead certainly hasn’t helped. The Mercator myth is sad, as well, but it’s e...

Not surprisingly this has already become a topic of Wikipedia disputes. :D Back when I discussed the development of this projection with its author, he conceded that it was not any particular improvement over what’s available. He just wanted a strong contender against the Peters juggernaut. He asses...

Tobias, Thanks for the confirmation. I recently acquired an Apple Silicon laptop, so, if I get the desire, I can test things out more thoroughly. I haven’t seen any trouble running in emulation mode that doesn’t also exist in the newest versions of macOS on Intel hardware, so I conclude that the em...

Allow me to chime in here. Geocart is one of the few small developer-owed apps the Apple hasn't driven out of existence and I love to use it knowing that there actually IS someone behind it that has my back. I use Geocart on a daily basis on a M2 Mac running Ventura and don't know how long it will ...

Do you konw if Geocart is compatible to Windows 11 on Arm? I’m asking because you need this in order to run Windows with the help of Parallels Desktop on a Mac. Eek. I missed this posting. Sorry about that. I do not know the answer to this. Historically I have used VMWare Fusion, but I haven’t trie...

If you ever wanted confirmation of how inflexible the typical person’s thinking is, show them a south-up map. It’s puzzling to how exotic this seems to a lot of people. The responses on the Service Formerly Known As Twitter can only be described as a meltdown, according to reports. (I don’t patroni...

That’s a thing of beauty! Bravo!

— daan

Happy new year to you, too!

I wish I had something to tell you. I don’t — nothing anyone could act on, anyway. I seem to believe I will adapt the code base to Metal, but I have not started and have no idea how long it will take.

— daan

Ah, right. Sorry; I should have confirmed your conjecture about the usual definition for angular deformation. And yes, using the Jacobian is a pithy path to the solution. Nice to see that explicitly. You might be surprised how uncommon it is in the map projection literature to see the Jacobian used ...