Earth Bathymetry Question

Tips for creating and manipulating planet textures for Celestia.
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Ozark
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Earth Bathymetry Question

Post #1by Ozark » 12.08.2007, 05:00

Hi all

I just downloaded the Earth Bathymetry map found here:
http://snowy.arsc.alaska.edu/nasa/topog ... 801.bin.gz

I followed step by step the directions according to this post using Fridgers code:

http://www.shatters.net/forum/viewtopic.php?t=10071&start=15

And this is the result. I am no expert on Bathymetry, but this looks nothing like the other images i have seen.

Image

Image

I've tried one 16k png image and tried virtual textures with the same exact results :(

Has anyone had the same issue,or is this actually what it is supposed to look like? I have tried 3 times with the same results.

Ozark
OZARK

Celestia 1.5.0
Windows XP Home Edition
Pentium 3.4 ghz E.E
2GB ddr Ram
Radeon 9550 AGP 256 mb

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cartrite
Posts: 1978
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Location: Pocono Mountains, Pennsylvania, USA Greate Grandfother from Irshava, Zakarpattia Oblast Ukraine

Post #2by cartrite » 12.08.2007, 10:37

I followed step by step the directions according to this post using Fridgers code:

http://www.celestiaproject.net/forum/viewtopic ... 1&start=15

And this is the result. I am no expert on Bathymetry, but this looks nothing like the other images i have seen.


There is a typo in the command Fridger used on the above post. Try

Code: Select all

gzip -cd < gebco_bathy.21601x10801.bin.gz | resc2pow2 21601 1 | nms 6378.140 16384 2.7 > gebco_bathy_nm16k.ppm


EDIT: I repaired the typo on this post to avoid confusion SORRY :oops:

cartrite
Last edited by cartrite on 12.08.2007, 11:01, edited 1 time in total.
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t00fri
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Post #3by t00fri » 12.08.2007, 10:44

cartrite wrote:
I followed step by step the directions according to this post using Fridgers code:

http://www.celestiaproject.net/forum/viewtopic ... 1&start=15

And this is the result. I am no expert on Bathymetry, but this looks nothing like the other images i have seen.

There is a typo in the command Fridger used on the above post. Try

Code: Select all

gzip -cd < gebco_bathy.21601x10801.bin.gzw2 21601 1 | nms 6378.140 16384 2.7 > gebco_bathy_nm16k.ppm


cartrite

There is typo in the command cartrite used on the above post ;-) . Try

Code: Select all

gzip -cd < gebco_bathy.21601x10801.bin.gz | resc2pow2 21601 1 | nms 6378.140 16384 2.7 > gebco_bathy_nm16k.ppm 



Bye Fridger

Ozark wrote:I followed step by step the directions according to this post using Fridgers code:

It's always good to remain critical ;-)
Image

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cartrite
Posts: 1978
Joined: 15.09.2005
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Location: Pocono Mountains, Pennsylvania, USA Greate Grandfother from Irshava, Zakarpattia Oblast Ukraine

Post #4by cartrite » 12.08.2007, 10:52

Thats what I get for copying from my terminal without checking. :oops: Shame on me :wink:
VivoBook_ASUSLaptop X712JA_S712JA Intel(R) UHD Graphics 8gb ram. Intel(R) Core(TM) i5-1035G1 CPU @ 1.00GHz, 1190 Mhz, 4 Core(s), 8 Logical Processor(s) 8 GB ram. Running on Windows 11 and OpenSuse 15.4

Topic author
Ozark
Posts: 44
Joined: 09.07.2007
With us: 17 years 4 months
Location: Plymouth, MN

Post #5by Ozark » 12.08.2007, 15:18

Thank you Gentleman! :D

It's amazing how 1 pixel can make such a huge difference!

Ozark
OZARK



Celestia 1.5.0

Windows XP Home Edition

Pentium 3.4 ghz E.E

2GB ddr Ram

Radeon 9550 AGP 256 mb


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