foldable map of Ida |
foldable map of Ida |
Oct 27 2008, 12:57 PM
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#1
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Member Group: Members Posts: 140 Joined: 20-November 07 Member No.: 3967 |
Here is a constant-scale natural boundary map of Ida that folds to a decent replica of the asteroid. Map edges are Ida's major ridges.[attachment=16299:Ida_MaxRidge_post.jpg]
[EDIT] Here it is again with the photomosaic properly credited; apologies to M. Nyrtsov for my oversight. |
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Nov 10 2008, 03:13 PM
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#2
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Member Group: Members Posts: 106 Joined: 26-September 05 Member No.: 508 |
Chuck the comparison photo is really impressive.
Due to Ida's irregular shape slices will not be contiguous and I suggest first we try it with Phobos. I will post the slices in DXF and CDR formats in a few days. |
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Nov 10 2008, 08:42 PM
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#3
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Member Group: Members Posts: 140 Joined: 20-November 07 Member No.: 3967 |
Thanks, Tayfun. Like I say, the view from the other direction is not so perfect -- I have an Adkins digital pic of that side, can you send me a digital image of the shape model from the same view? I'll make another comparison plate. Here, I'll post what I have . . .
Due to Ida's irregular shape slices will not be contiguous and I suggest first we try it with Phobos. I will post the slices in DXF and CDR formats in a few days. [/quote] I agree. Especially as Ida is the most complex shape, best to work up to it. Have you tried to assemble the Phobos map-model yet? Phobos model hold their shape fairly well without an infill, but they'll be much stronger with it. Note that the slices will have to be truncated, primarily at the "blunt" end, where the map precis (the choice of boundary tree) leaves the largest lobe, or flattened facet. We'll probably have to work this out ad hoc, by trial and error. At the DPS meeting, some education experts were excited about the possibilities -- tactile, hands-on activity, etc. -- but immediately asked about some kind of solid fill. So I think it's worth the effort. We have stuff here called foam-core board; I'll probably use that to cut the slices. It comes in 1/8 inch thickness increments. |
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