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Migration routes

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#16
Jean-Louis

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Admittedly, I did not express myself well in the original post. I just had a vague image in my mind and only found out afterwards that it was called a polar world map projection or a Dudley projection.
But I have to mention that I found your comment somewhat out of line - that my trying to help you out with the suggestion of rarely-used projection was something ‘dirty’ and that I should rinse my mouth out for mentioning it. :angry:
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#17
frax

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Nick - I don't think it is Dudley - that map looks uninterrupted. Since I do a lot of Arctic work, that project looks interesting because it doesn't interrupt the Arctic.

J-L - apologies for not being clear, I tried to be funny/ironic... Thanks for the input/comments, it is appreciated!
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#18
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Nick - I don't think it is Dudley - that map looks uninterrupted. Since I do a lot of Arctic work, that project looks interesting because it doesn't interrupt the Arctic.

J-L - apologies for not being clear, I tried to be funny/ironic... Thanks for the input/comments, it is appreciated!


Apologies accepted. I figured maybe it was a Scandinavian thing... because Swedish maps probably all have pornography on them! :D
There, we're even, Hugo.
Here is a properly scaled example I found of exactly what I was refering to.
Attached File  World_polar_projection___free_blank_map__free_outline_map___coasts__states__grayed_.gif   47.43KB   28 downloads
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#19
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Here is another interesting projection alternative, that throws out accuracy.
Posted Image

The world/map image is properly presented on a sphere, as viewed from space, but I played with the coordinate presentation by rescaling the image first. The equator goes south of Africa...
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#20
Jean-Louis

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Here is another interesting projection alternative, that throws out accuracy.

The world/map image is properly presented on a sphere, as viewed from space, but I played with the coordinate presentation by rescaling the image first. The equator goes south of Africa...


Just curious. I always thought that because a 3D sphere cannot be rendered on a 2D surface, a map was 'accurate' only in as much as it conforms to the inner geometry of its projection.

When I explored a little, I got the impression that the full polar view, ie this view where the south hemisphere is unfolded in a circular pattern radiating from the equator, is as 'scientifically accurate' as Mercator, Robinson or any other, (assuming of course that it is rendered properly) In this case, the equator is not defined by the edge of the circular image. i.e. it does run not below Africa put at its proper place as an inner circle.

This is why I was puzzled by your reference to a scientific standard. I thought it was a proper and scientifically accurate visual solution for showing polar migration routes. But I'm not sure I know what I'm talking about here. By trade, I am an illustrator not a cartographer.
Jean-Louis Rheault
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