[X] My Assistant

[djellison]

This is a polar projectiong


and after Phil's excellent guidence, I've figured out how to do those. They're great for a sense of 'place' and cross referencing horizon features with maps or orbital imagery.

However - if you want to generate your own map like material, you need more of a vertical projection thus...


Now - I have no idea how to do that Part of me thinks it could be fuged by stretching away at a polar projection, but is there a more obvious way using the 'ordinary' tools?

Doug

(images from http://marsrovers.jpl.nasa.gov/gallery/pre.../20051021a.html )

[SteveM]

...
However - if you want to generate your own map like material, you need more of a vertical projection thus...

Now - I have no idea how to do that Part of me thinks it could be fuged by stretching away at a polar projection, but is there a more obvious way using the 'ordinary' tools?

Doug

As far as I can tell, the NASA map projections seem to do a simple geometric projection of the image onto a horizontal plane. (something like a stereographic projection). This means that rocks and other objects extending vertically above the surface are stretched out radially as in this example.

Is anyone (amateur or in the profession) doing projections which accurately portray distances, perhaps by draping the imagery onto a three dimensional model of the local surface derived from the stereo distance measurements.

Steve (sorry for putting the large image in-line; I know there's a way somewhere to put in a thumbnail. )

[djellison]

by draping the imagery onto a three dimensional model of the local surface derived from the stereo distance measurements.

The terrain models are there in the PDS for released data - but I don't know any way in which to use them, they're not in a format that can be dropped into any animation package I know of. If I could do that, then I would do it in a MOMENT ( I did it with MPF last year )

Doug