Eagle and Endurance DEM's available! |
Eagle and Endurance DEM's available! |
May 17 2006, 09:30 AM
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#1
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
http://anserver1.eprsl.wustl.edu/anteam/mera/mer_osu.htm
Two things.. 1. Phil - YAY - bundle adjusted references for all the sites in the top two txt files!!! And 2. Um....what does one do with those Bin's. Damn I wish I could code...if anyone knows a means to get that lot into any sort of appropriate 3D format they win the UMSF 'special cookie' award Just for fun - I bunged the XY data of MERB into Excel. It's not 'square' i.e. it's not accurate - but I think I'll go for something accurate in Photoshop Also - Z axis against Sol for Spirit...I've seen that graph somewhere else...but making it ones self from data is always much more fun - you can clearly see Bonneville, Missoula, West Spur and the return to Larrys Lookout. Doug |
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May 17 2006, 05:16 PM
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#2
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
I've begun to make some progress - it's getting quite interesting Some piccies of Endurance later perhaps
Doug |
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May 17 2006, 07:52 PM
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#3
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
I've begun to make some progress - it's getting quite interesting Some piccies of Endurance later perhaps There's some oddness in the labelling of the files - the Eagle bin file is labelled as 68Mb but is 29,160,000 bytes (2700x2700x4bytes per data point), the endurance bin is labelled as 28Mb but is actually 1312416 bytes (588x558x4). Quick and dirty first pass at the Eagle bin file - converting to png. Apologies for the garish colour scheme but its a quick and dirty linear colour ramp just to see if the data all works. I'm having some problems with the endurance bin - I'm not getting anything sensible out of it yet. |
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May 17 2006, 08:03 PM
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#4
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
I'm having some problems with the endurance bin - I'm not getting anything sensible out of it yet. Just noticed that the eagle bin is big-endian (Motorola FP32) and the endurance one is little-endian (Intel FP32). Odd thing is that the eagle one works on my Intel machine and not the endurance one. Hmmh. |
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May 17 2006, 09:00 PM
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#5
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
Something definitely odd - the file labelled Motorola FP32 (Eagle) is actually littlendian and the Intel FP32 (Enfurance) is bigendian. Maybe it was just a test. Anyway as "grayscale" images - got to work out how to output the data with better depth resolution (these are true color pngs just using gray values so there's really only 8 bits of depth) which is about 1cm for Eagle and 10cm for Endurance. The data for Endurance isn't quite square but the error is only about 0.07% so it amounts to less than half a pixel over the full image so it's not noticable.
Endurance: Eagle: |
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