I give up. how do I upload an e-poster to LPSC?
Every time i login to the abstract submission page, all I get is a "submission deadline has passed" notice.
Where is the e-poster upload connection?

Sound like a puzzle that might be unscramble-able with constant-scale natural boundary mapping. If the tilting blocks can be identified (say by constructing the medial axis of all the surface that is not the Tharsis complex, and using that topological skeleton to form the edge of the CSNB map (same as, or similar to, the way the foldable asteroid maps were laid out), then we'd have, perhaps (I'm just making this up as I go along), an ideal map in which to contemplate all the data and speculations about tilt.

And then again, the inverse map, the one that uses critical boundaries within Tharsis complex as the CSNB map edge may be better to project the stresses to the antipodes, which would then by in the middle of the Tharsis-edged map. See some tilting scenarios may be seen as more likely than others.

The nice point is that the two topological skeletons would be complementary to each other, so all sorts of analysis by numerical and (with the handy constant-scale critical boundary format) geometrical, i.e., waterlines, (the old Victorian mapmaking treatment of watery shorelines) which would project stresses (and carry second order stresses) onto the other skeleton.
May not even be necessary to have the map, but then a picture's worth, what? I forget the math . . .

Soon as Phil gives the okay, I'll get started on a fold-up map of the thing.
Phil . . . ?

Just speculating here, but could the errant pixel be exploited as an indicator of wobble?

That's exactly right, Chuck.
Phil

Good. Thank you. Seeing no gap between the two pairs was confusing me. My architectural eyes were trying to imagine four orthographic (boxlike) views.

Now, (Sorry not to have put the whole idea in one post), it looks like the contact spot of two (paired) ellipses is a point common to both hemispheres.
Can you nudge the two ellipses together, creating a little overlap, a shared, central region? Seems like this might work for a distance of, say, the middle third. If not the middle half.

Not that I don't like them this way!
They're fun to cut out and fold together into elliptical Itokawa "coins."

Each of these maps is of a 'hemisphere' . . . Two of these maps cover the whole body, and I'm mapping it here in two different ways with the poles or the equator at the middle.

Okay. But, sorry to be dense, which ones together? The two polar ellipses combine to make one complete map of Itokawa, the poles in the middle of each respective ellipse, and the two "other" ellipses combining to make another complete map of Itokawa, the equator running along each ellipse's long axis?

. . . new map projections for Itokawa and other elongated objects. This is a Morphographic Equidistant (that's like an azimuthal equidistant, except it uses the local radius everywhere in the equations, instead of a constant radius) version of the Itokawa mosaic projected onto an ellipse.

So is each individual ellipse a map of Itokawa's complete surface? Or does it take two of these ellipses to make one complete world map? Four?

Will be easy to tell when you plop on the grids, but for those of us who can't wait . . .

"Makes you realize how many people see very little of the night sky."
What night sky? Nothing up there but blinking lights of airplanes.

From Atlanta, GA

Hey, that's a perfect use of the foldable maps (see Phobos, et al. over at rightbasicbuilding.com I've been making. Our yearly tree has an extensive solar system ornamentation already.

Trouble with normal methods of 3D manufacture is the size of the production run, and by some method, printing surface features onto the object.

Nice thing about the foldable paper approach is that color printing takes place (duh) on the flat sheet, then, cut'n'fold. (Of course if my memory serves, you EGD, will draw rabbit ears on the flat map, but they'll disappear when folded.

Now all we need is for me to get my hands on an actual model of Vesta, to capture metes and bounds. Anybody out there able to contribute?

Then, perhaps, it was a pragmatic decision taken on limited data or capability (this I could feel better about), rather than a willful aesthetic judgment within a large range of alternatives.

"That image" also flattens the surface. Why? Someone please tell me!
Can you restore the curvature?

[quote name='Phil Stooke' date='Sep 2 2011, 01:25 PM' post='178269']
After a year-long hiatus


Go Phil!

Emily -- If you succeed with the LEGO model, send it to me, I'll make a foldable map from it.

Chuck

Not quite yet. I still have to coax someone into fabricating an actual object I can work from.
The imagery should be fantastic.

Hey -- I can import and open this file in my VectorWorks program!

Thank you, Tayfun.

So presumably, if all systems continue moving along smoothly, that missing info will fill in pretty quickly?

And what is needed for you to locate poles, equator, and the rest of a lat-long grid?

Chuck

Tayfun -- is this something more than just pixels on the screen? That is, is it something you can make a physical object from?

Chuck

For those who have trouble viewing anaglyphs try this trick:

Walk your eyes into slowly, step-by-step, so to speak:

open one only, for a few seconds, then open only the other, again for a few seconds, THEN open both eyes.

No way I can see to extract the constant scale, not to say that I haven't been trying to transfer my Renaissance-era methods into the software environment.
Although to be fair, I'm not very skillful with PDS shape models, and perhaps someone else could do it.

I guess we may have to wait a few years, although the Itokawa team sent me a model a while back. You don't suppose the Dawn team has any plans to manufacture a small run of Vesta models?
Chuck

With all this incredible photography, Vesta is going to be an excellent specimen for a foldable map.
Tayfun -- are you out there with your CADCAM machine still operable? How long until we have enough data (a "shape model" do they call it?) for you to carve one for me of this beast, er, lady?
Chuck

Gee Phil, I appreciate the purity of that circular image, but I'm also wondering how it might look if you pasted in an aerial view of the rover onto that. It'd be artificial and all, but the orientating effect ought to be strong.

Just a hunch, but I'm joining in with ElkGroveDan on this one.

This should be fun for all you arts and crafts types.
This image is severely compressed, so probably full of artifacts when printed.
A larger version (same file size but much less compession) is here:
http://rightbasicbuilding.com/ganymede-fol...-geology-globe/

Sigh. I was so hoping it was tracks of blueberry harvesters.

Hi all,
I got interested in global cloud patterns and the problem of viewing them on a map.
I wonder if those neatly segregated Hadley and Ferrel cells have any overarching patterns when biannual equinoctial transfers occur.
And I presume any such patterns would be more evident on a well chosen constant-scale natural boundary world map than on any conventional map projections.
Maybe not. Maybe hurricanes just slip up the cracks between Hadley Cells and atmospheric circulation on earth is essentially a local phenomenon. But, the curious side of me got the better.
So i got a commercially available screen backdrop (Earthdesk) that shows a map of Earth (standard projections only; I used simple cylindrical) with real-time cloud patterns, and over the course of last year's hurricane season, took screen shots and saved them.
Then I warped each screen shot into my constant-scale natural boundary format, a world map of Earth bounded by African and Asian continental divides, on which both polar circulations will be circular, Equatorial circulation will be linear, and the African-continent source of hurricanes as well as the teleconnected antipode (think Singapore) are both true shape.
So, I've got 20 frames like this one too large to post here
Each frame is 40 megs, which, in aggregate, is way too large for me to process. I suspect it is also way bigger than I need to make a decent animation.
For example, this is a really fine animation. But what are the pixel dimensions which it is built on? What format is it saved in?
What formats allow for full-screen viewing?
I've never made an animation before -- "lossy" and "dither" are new terms to me. What settings are best for cloud fidelity?
I have Photoshop CS 2 to work in.