3D shape, cartography, and geoid of Comet 67P C-G |
3D shape, cartography, and geoid of Comet 67P C-G |
Aug 6 2014, 02:11 PM
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#1
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Solar System Cartographer Group: Members Posts: 10183 Joined: 5-April 05 From: Canada Member No.: 227 |
Explorer 1 said:
"A 2D map of C-G seems like a tough order; the projection math alone..." Don't worry! If you can put a grid on the surface (as we have seen already), you can warp that grid into any map projection you like. Mapping will be no huge problem - in fact I expect they have a rough one already (I've been playing with one myself). Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Oct 2 2014, 02:37 AM
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#2
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
i had to redefine the "NorthPole" ( rotated x + 90 degrees )
[attachment=33886:1.jpg] normally the NP and SP would be at the top and bottom BUT do to mapping issues with the two lobes that will not map well into a SimpleCylindrical map redefining 180long/0lat as the northpole and the NorthPole as 0long /0lat [attachment=33887:1440x721BASE.jpg] [attachment=33888:2.jpg] the real northpole is at the center of the above DEM ( 8 bit copy of the 32 bit image) and remapped with 90 north at the top and 0 longitude / 0 latitude in the center [attachment=33889:90n1.png] ( the duck's body is in the center and the "head" is on the left and right ) |
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