NextPreviousHomeMercator Distortion


michiel | 2 months ago | 13 comments | 11 likes | 503 views

Tintin, vincent, Kanon and 8 others like this!

The Mercator projection renders countries close to the poles larger than they actually are. And countries close to the equator appear smaller:
nytimes.com...

This animation shows what happens when you rotate the earth. Watch how Greenland becomes smaller and Africa becomes bigger.

Realize that every frame in this video is a valid Mercator projection. As valid as the one we are used to.

EARTH TEXTURE

shadedrelief.com...

EFFECT

Apply the Filters\Spheremap effect to a picture of the earth, set the FX PROJECTION prop to 1 and animate the FX ROTATION prop.

FONT

housefonts.com...

CLASSROOM

The background picture has been made by ChatGPT. The stereotypical classroom is a nice contrast to the non-stereotypical world map!

AUDIO

Ice Cream by Joey Pecoraro from the YouTube audio library


Download media files (2.2 MB)

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Yes that hard to render a sphere as plan.

vincent, 2 months ago


It's a conspiracy🤣 Nice made.

Filip, 2 months ago

Great technique, the simple pictures are beautiful, thanks for the great tutorial.

liuyongcai, 2 months ago


Great Effect.
The downloaded media isn't the same as the YT video.

lightads, 2 months ago


Lightads, that's true.

And many other variants are possible. Looking forward to see your version!

michiel, 2 months ago


aha! Thank you michel, I missed this fx application function until now. The Mercator map projection failed to address the issues of, time, distance, speed, and grid positioning or direction as one unit. the Azimuth Equidistance map was created to consolidate all these elements as one unit. it it used to day by Governments etc. to consolidate time on multiple locations at one time with one watch. it works well.

Rorysee, 2 months ago



Thank you all!

Another application of the Filters\Spheremap effect is this flat Earth. The template comes with BixPack 32:

outerspace-software.com...

michiel, 2 months ago


Rorysee, not sure if the azimuthal equidistant projection equals the sphere map projection, but they look very similar!

michiel, 2 months ago


yes pretty much because they are all based on the same map grid reference. Both are flat, planar surfaces like any 2-dimensional map. the issues are in translation to a 3D environment, As you well know. You have done an amazing Job with BluffTitler. impressive. so thank you very much. so the issues remain in 3D environment on the globe, Google Earth measures Africa wide part 7 700 km compared to Russia from Black Sea to Vietnam is only 5 400 km.

Rorysee, 2 months ago

Géniale tectonique des plaques

PAT67, 2 months ago




Rorysee, here's a comparison between the Azimuthal equidistant and the sphere map projections. The Filters\Spheremap effect will be updated to support Azimuthal as well.

Note that Azimuthal is used in the UN logo:

commons.wikimedia.org...

michiel, 2 months ago


Aha thanks michiel. looking forward for the update. much appreciated

Rorysee, 2 months ago

In version 16.7.7.1, the Filters\Spheremap effect can now render an Azimuthal map when the FX PROJECTION prop is set to 2.

outerspace-software.com...

michiel, a month ago


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About michiel

Michiel den Outer is the founder and lead coder of Outerspace Software. He lives in Rotterdam, the Netherlands.

If he isn't busy improving BluffTitler, he is playing the piano or rides the Dutch dikes on his bikes.

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