How to make a net for a globe from a high-resolution map in the form of spherical digons?

Question

Do it yourself

There is a high resolution map . How to cut it so that you can stick it on a large (about 1 meter in diameter. So big because a child) ball to get a big globe?

Answer 1

This projection is called interrupted sinusoidal projection (interrupted sinusoidal projection) - a special case of sinusoidal projection. There is a tool from NASA , which can remake a map in various projections. It has only one drawback: you need to install a Java machine.
For example, here is a picture of a sinusoidal projection of 360 degrees. Let's say you need 12 segments (like SyavaSyava ), so you need a projection of 360 / 12 = 30 degrees. I suspect that this will require making 12 different pictures.
One guy wrote an online tool for this kind of projections. You can also take a look at his website .

Answer 2

The map you linked to has distortions to create a rectangle from what is, in its true state, a sphere. In this case, the distortions are distributed very evenly. If you try to cut it into any wide bicagons, then in fact you will lose real areas of space at the poles. Or you will have to make a lot of narrow bicagons.

Answer 3

Try to find a hole for the ball. I feel that after this some manipulations with any UV-mapper will be required