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Need help with 34K Venus DEM but its in PDS4 format

Posted: 05.06.2022, 15:14
by Shadow-Dragon-777
https://pds-geosciences.wustl.edu/mgn/urn-nasa-pds-magellan_stereo_topography/data/
There's this 32K DEM of Venus that I would like to use but its in PDS4 format meaning img2png does not work on it.
Any help would be appreciated to get this converted to png format so I can make a giant 64K Venus bumpmap!!!
The file is mosaic_allstereo.img with the .hdr going with it.

Posted: 06.06.2022, 03:32
by John Van Vliet
ISIS4 will import it , but as i recall it is only a very partial DEM , only a small part of the planet is there

the ISIS install guide
https://github.com/USGS-Astrogeology/ISIS3#installation

Posted: 07.06.2022, 01:46
by Shadow-Dragon-777
Unfortunately, I only have a Windows computer which is incompatible with ISIS without a considerable number of extra steps. If possible, could you convert this to a PNG and store it on your drive? You will be credited in my addon for your help.

Posted: 08.06.2022, 12:13
by John Van Vliet
I can do that , but give me a few days to do it

Posted: 09.06.2022, 14:45
by John Van Vliet
here is a screenshot, do you really want it

Screenshot_20220609_104404.png

Posted: 09.06.2022, 14:52
by Shadow-Dragon-777
Yes I would like that map please! It would provide extra detail in areas of Venus as a PNG.

Posted: 09.06.2022, 19:20
by John Van Vliet
here is a link to a 32 bit floating point image ( 653 meg zip )
https://drive.google.com/file/d/19HNMJrh-DqCSPICnqtWgMNhWobXuRPHO/view?usp=sharing

Posted: 10.06.2022, 22:07
by Shadow-Dragon-777
Thank you so much!

Posted: 13.06.2022, 16:28
by John Van Vliet

Posted: 14.06.2022, 01:25
by Shadow-Dragon-777
Thank you! This will also be great to use when I make my 20K terraformed map of it in beautiful crisp 16 bit detail as opposed to the pixelated 8 bit detail! (It's the biggest size GIMP will allow the paintbrush to be and anything bigger slows down the computer too much to allow me to make a terraformed map.)

Posted: 18.06.2022, 06:33
by Shadow-Dragon-777
While browsing through articles, I found an 11K cub DEM of Io https://agupubs.onlinelibrary.wiley.com/action/do ... 02/2013JE004591&file=IoDEM.cub

It is not of the whole thing but with smoothing of unmapped areas, I could make it act as a decent shaded map for most of it.
16.97 is highest -3.1 is the lowest.

Posted: 19.06.2022, 01:58
by John Van Vliet
here is a screenshot of that dem

Screenshot_20220618_215609.png




.

Posted: 19.06.2022, 11:36
by trappistplanets
John Van Vliet wrote:here is a screenshot of that dem
i would like to have it, can you convert to an 8k png pls

Posted: 19.06.2022, 16:38
by Shadow-Dragon-777
I would like a 16 bit version of that please. The mountains of Io will really stand out with my addon!

Posted: 20.06.2022, 02:52
by John Van Vliet
here is a zip. It contains 2 images a 16 bit UNSIGNED normalized tiff and a 16 bit SIGNED integer tiff that is in Meters of height
the mapping is 90 north to -90 south
and
360 west to 0 east
https://drive.google.com/file/d/1LUZRQzNuNMJ9EXJgzgba90GWnOaMKUae/view?usp=sharing


.

Posted: 21.06.2022, 19:58
by Shadow-Dragon-777
Thank you! This will be useful in adding elevation detail to much of Io.