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Gale: Mapping Irregular Beds

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Published on Apr 29, 2011

Gale Crater is one of the candidate landing sites for the Mars Science Laboratory. In this video, Dawn Sumner gives a demonstration of mapping with the program Crusta (see below) on beds that are not planar. Watch in HD, full screen to see the cursor pointing out details.

The imagery used includes a CTX mosaic (provided by Miliken) and HiRISE images. Both are draped over MOLA, HRSC, and HiRISE DEMs. The images and DEMs are not perfectly correlated in this data set, leading some edge effects.

The video shows real-time manipulation of the data in the program Crusta running on Vrui, written by Tony Bernardin and Oliver Kreylos, respectively, as part of the Keck Center for Active Visualization in Earth Sciences, UCDavis. See http://keckcaves.org The video was captured using ScreenFlow (commercial software). Simultaneously running Crusta and ScreenFlow taxes the memory of my laptop (a MacBook Pro with only 4 GB of RAM), so Crusta responds much more slowly in the video than it does when I'm not also using ScreenFlow. It's an amazing program for mapping!

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