I think this might be my new favourite site on the internet. Wow! Everything I've been wanting to explore about projections at my fingertips! The _only_ drawback is that now that I've found this site, I won't feel so compelled to implement/write my own version of it, but hopefully I will find something else to do with my time. Thank you very much!

Can you look at Wagner II? It says the date was made after Wagner I, but also after Wagner III.

have you heard of the waterman butterfly projection?

Hi, Tobias,
Thanks for your informative projection website! I'm working on Mapvision, a GEO-portal with international info about carto/geo/topo/hydrography, and much more global geo-related info. Sometime this year I will put a link to your site at: http://www.mapvision.eu/node/m…
Best regards, Peter.

Great job! Extremely useful, intuitive website, for research, education, or simply enjoying free time!

The projection you call "Hammer-Cylindrical" is obviously not cylindrical. Some info on the source/derivation would be useful.

In that vein... This is a very useful website, but from a professional standpoint, it would help if there more citations to sources, esp. for some of the more esoteric projections.

Hi Tobias

Great website! Quick question... what is meant by 'compromise', under the property column - for some projections?

Thanks

Fantastic project! Very professional and well executed. Keep up the good work. Sehr gut und mit Belehrung gelesen!

Except, the surface of the world is not spherical or even convex in the slightest. There is no measurable curve at all. Also,the world is stationary and does not move at all. It is the Sun etc that moves in the sky above the stationary world below. https://ibb.co/7W3sSZS https://ibb.co/w79B7b2 https://ibb.co/j6FZqcb

Greetings,
I found my way to your very informative website because I am interested in Bucky Fuller's Dymaxion Map. I am wondering if you know of any digital developments of this map that allow for folding and other manipulations to reveal relationships not otherwise evident.

Please respond even if you don't know. That way I will know you received you question.
Much Thanks, Jean Gardner

Here is the Cupola: https://www.tandfonline.com/ep…

Nice site of you, I know it. I am not a cartographer too!

Greetz, Weia

Hello and moin,
I have a question, I could find out how it works, I read the papers but I am no good at either math and coding.
I have a map of a world from the german micro/virtual nations and it's in wagner VII and I would really love to get my hands on a merkator projection to put it on a globe/3D object.
It's a vectorgraphic but I am just unable to get it to work, or even how to start.
I.E.: How to get something like this: https://map-projections.net/d3…
Actually, doesn't need to be interactive at all.

I'm missing the WatchRose projection:
http://www.watchrose.de or http://www.watchrose.com

Henrique

THY! Super Job!
Today in the #geoObserver, see: https://geoobserver.wordpress.…

Mr Jung, are you going to add more information about each projection shown here?

This is such a nice website really! I had used this with a few of my friends to work on our upcoming project about Mercator's projection, and by exploring the website I realised that this is some sort of passion project which has been regularly worked upon since 2015! I find that so so cool, I hope you continue working on this for as long as possible, it was really great going through this website, and I'll be sure to check in every few weeks. :)

Hi! I teach world history, and my department as said we can buy maps, but they can't use the Mercator projection. I can't find any historical maps (the Roman Empire, world trade in 1500, the Hellenistic world, etc) that don't use Mercator. Is there any way this site can help convert Mercator projections of historical maps into more accurate projections? Or do you know of any source for the kinds of maps I'm looking for? Thanks!

Hi, I recently became interested in map projections, and this site is amazing! I have 1 suggestion, it will be difficult to implement so I don't expect you to do it, but I think it will be a good addition.

I understand that there is no such thing as a perfect 2D projection of a sphere, but perhaps it will be useful to find out which are Pareto-optimal: projections which are not strictly inferior to any other projection, based on some metrics.

My suggestion is to compute the error metrics for each map as suggested by Goldberg and Gott (https://www.physics.drexel.edu/~goldberg/projections/goldberg_gott.pdf): Isotropy, Area, Flexion, Skewness, Distances, and Boundary Cuts. Then determine which maps are Pareto-optimal and which are not. The paper computes those errors for some map projections, and as an example, in their list of 27 maps, 7 are not Pareto-optimal: Eckert VI, Gall-Peters, Hammer, Lambert Conic, Mercator, Mollweide, and Sinusoidal (if I did not make any mistakes).

What do you think?

I really like this, as a young person interested in map projections this is likely the best website I have ever seen. I think having a way to compare map projections is really handy. I also like that you've linked other things that relate to map projections (if you find more please add it if you have time, perhaps books?) and I've enjoyed looking at the blog. I like that you've avoided using loads of maths, as although I'm open to learning and would love to be able to understand how the projections work beyond the basics, I do find it quite tricky to understand, and might have to learn some more maths before trying. I want to thank you for making this public because it's great.

I'm Looking for Custom Maps

Can You Take a Photo of a Map and Project on Different Layout?

Thanks,
Kevin

It would be nice to know which year the maps are from, the one I was looking at had Crimea belonging to Russia but no date in the description of it.

I am a geography student at the university of Washington in Seattle and I am looking for interesting maps to put up on my wall and I want to put a waterman projection up but just the panels, like cutting out the panels and I really
I really like your alternate waterman projection, I would like to print a version of it to put up on my wall using a nice printer/ print shop, so I was wondering if you have any larger file size versions on a white background, and if you did would you be willing to sell that file to me?

I really like your site, fascinating. It is much appreciated that you are sharing your interest in maps with us.

Very, very nice! I never suspected so many projections (and so weird projections) actually exist...

Out of curiosity, I would be interested to see a map with some standard projection (e.g. Natural Earth) where the latitude & longitude are inverted, i.e. the great circle passing by longitudes 0 & 180 (or -30 & 150) is now projected where the equator usually appears. That way the both poles would appear where we're used to look at the equator.