IPB

Welcome Guest ( Log In | Register )

2 Pages V   1 2 >  
Reply to this topicStart new topic
LOLA PDS release #5
zeBeamer
post Feb 25 2011, 06:50 PM
Post #1


Junior Member
**

Group: Members
Posts: 22
Joined: 20-June 09
Member No.: 4830



Hi All,

Some LOLA products for the PDS release (#5), which will be officially out on March 15, 2011, are now available on the LOLA PDS node !
Label files and documentation are still being worked out, but I thought it'd be good to post (and some of you know we usually put those products online a bit early)

The data released are from July 13, 2009 to January 31, 2011.
There are EDRs/RDRs (individual profiles) for the courageous ones. But most of you will prefer the map products ( http://imbrium.mit.edu/DATA/LOLA_GDR/ ).
In addition to IMG products (int16), there are JP2 files (GeoJPEG2000) which are compressed (lossless) and contain projection information. If you use a GIS programs, that should be helpful. The attached XML files contain the statistics already, which could save you 10+ minutes for the bigger grids upon loading. (Due to PDS filenaming conventions, you need to rename them to file.JP2.aux.xml for that to work properly; tested on ArcGIS).
And keep in mind that in both those formats, the data were digitized at a 0.5m granularity, so you will need to divide the values by 2 to get the actual heights (in meters).

Also of interest for visualization are the updated LOLA texture packages for Celestia.
ZIP files here: http://imbrium.mit.edu/EXTRAS/CELESTIA/
and a few screenshots:







It'd be great also to know how this community is using the LOLA data, so please reply if you do:
1- Experimental Data Records (EDR) [raw telemetry]
2 - Reduced Data Records (RDR) [altimetric profiles]
3 - IMG Gridded Data Records (GDR) [maps]
4 - JP2 Gridded Data Records (GDR) [maps]
5 - Celestia Virtual Textures


Enjoy !!

Erwan

EDIT 2011.02.25 08:30pm EST
I realized there was a mistake in the level 0 normal map. (The files were the same as the topography texture...)
The ZIP files have been updated. In case you downloaded the "old" version, you can download the two level 0 files here instead of re-downloading the ZIP.
Go to the top of the page
 
+Quote Post
Phil Stooke
post Feb 25 2011, 07:19 PM
Post #2


Solar System Cartographer
****

Group: Members
Posts: 10256
Joined: 5-April 05
From: Canada
Member No.: 227



Very nice! At the bottom of the Celestia page you have the non-tiled false-color topography images. Could b/w shaded relief versions be added to that?

(EDIT - actually what Doug asks for works for me as well)

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
djellison
post Feb 25 2011, 07:24 PM
Post #3


Founder
****

Group: Chairman
Posts: 14448
Joined: 8-February 04
Member No.: 1



QUOTE (Phil Stooke @ Feb 25 2011, 11:19 AM) *
Could b/w shaded relief versions be added to that?


And simple unshaded greyscale 16 bit images (png/tif or similar?)
Go to the top of the page
 
+Quote Post
zeBeamer
post Feb 25 2011, 08:37 PM
Post #4


Junior Member
**

Group: Members
Posts: 22
Joined: 20-June 09
Member No.: 4830




QUOTE (Phil Stooke @ Feb 25 2011, 03:19 PM) *
Could b/w shaded relief versions be added to that?

I added shaded-relief images from 4 different lighting azimuths.

QUOTE (djellison @ Feb 25 2011, 03:24 PM) *
And simple unshaded greyscale 16 bit images (png/tif or similar?)

That's very close to the raw IMG files, no? I added grayscale images (PNG, JPG).


Erwan

Go to the top of the page
 
+Quote Post
Phil Stooke
post Feb 25 2011, 09:50 PM
Post #5


Solar System Cartographer
****

Group: Members
Posts: 10256
Joined: 5-April 05
From: Canada
Member No.: 227



Many thanks for those!

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
JohnVV
post Mar 1 2011, 06:40 AM
Post #6


Member
***

Group: Members
Posts: 890
Joined: 18-November 08
Member No.: 4489



i am checking them for addition to the celestia motherload as i type
http://celestiamotherlode.net/

in a few days they will also be there
Go to the top of the page
 
+Quote Post
mhoward
post Mar 1 2011, 03:13 PM
Post #7


Senior Member
****

Group: Moderator
Posts: 3431
Joined: 11-August 04
From: USA
Member No.: 98



QUOTE (zeBeamer @ Feb 25 2011, 12:50 PM) *
It'd be great also to know how this community is using the LOLA data, so please reply if you do:


Thanks for those, Erwan. I use the RDRs to generate my own surface normal map (see the previous thread). I'm looking into upgrading my network connection, as currently it takes me about a week to download each update!
Go to the top of the page
 
+Quote Post
Mars3D
post Mar 8 2011, 10:46 AM
Post #8


Junior Member
**

Group: Members
Posts: 37
Joined: 26-January 10
From: Reading, UK
Member No.: 5192



Thank you for releasing this early Erwan.

I am using the rdrs to produce datasets, maps and animations.

Here is an animation using the LOLA PDS release #5 data.
http://www.youtube.com/watch?v=h2GgbcRL0nA
Go to the top of the page
 
+Quote Post
charborob
post Mar 8 2011, 04:40 PM
Post #9


Senior Member
****

Group: Members
Posts: 1075
Joined: 21-September 07
From: Québec, Canada
Member No.: 3908



Great animation! Keep them coming.
Did you notice the pinnacle-like feature in the lower right corner at the beginning of the animation? (see image capture below) Is that real or a processing artifact?
Attached Image
Go to the top of the page
 
+Quote Post
Mars3D
post Mar 8 2011, 04:57 PM
Post #10


Junior Member
**

Group: Members
Posts: 37
Joined: 26-January 10
From: Reading, UK
Member No.: 5192



Its almost certainly bad data. I automatically filter some of the bad data out but it doesn't catch everything.
Go to the top of the page
 
+Quote Post
joertexas
post Mar 10 2011, 05:03 AM
Post #11


Newbie
*

Group: Members
Posts: 17
Joined: 30-January 11
Member No.: 5787



UNNECESSARY QUOTING DELETED

How are you creating the 3D flybys?

JR
Go to the top of the page
 
+Quote Post
Mars3D
post Mar 10 2011, 07:54 PM
Post #12


Junior Member
**

Group: Members
Posts: 37
Joined: 26-January 10
From: Reading, UK
Member No.: 5192



UNNECESSARY QUOTING DELETED

I 'm using the same rendering software I wrote for visualising the Mars HiRISE data.
Go to the top of the page
 
+Quote Post
joertexas
post Mar 10 2011, 11:39 PM
Post #13


Newbie
*

Group: Members
Posts: 17
Joined: 30-January 11
Member No.: 5787



UNNECESSARY QUOTING DELETED

I've been looking for a 3D map of the lunar north pole, specifically, a 30km radius centered at 89.55N 30W. I've downloaded the LOLA files and viewed them with LTVT, but that's as far as I've gotten with it.

Is your software an adaptation of something that's available online, or is it a custom program?

JR
Go to the top of the page
 
+Quote Post
JohnVV
post Mar 11 2011, 02:10 AM
Post #14


Member
***

Group: Members
Posts: 890
Joined: 18-November 08
Member No.: 4489



any dem viewer will work
the lola file is in 16bit singed format
the lbl has a off set to use that sets 0.5 Meters increments and in radii in Meters

even the old "3DEM" will work

check out
Virtual Terrain Project
http://vterrain.org/
http://vterrain.org/Packages/NonCom/

there is also "Integrated Data Viewer " a java application
http://www.unidata.ucar.edu/software/idv/
http://www.unidata.ucar.edu/software/idv/d.../3DSurface.html
Go to the top of the page
 
+Quote Post
joertexas
post Mar 11 2011, 02:37 AM
Post #15


Newbie
*

Group: Members
Posts: 17
Joined: 30-January 11
Member No.: 5787



I've tried many of the standalone programs, but I don't know enough about how to manipulate the data to produce images. I'll try the Java program, though.

When I select the LOLA file, I get this error:

Reading DEM: D:\My Documents\Space Mining Info\LTVT\LTVT_v0_21_3_1_full_version\LDEM_875N_10M.IMG
Data object "D:\My Documents\Space Mining Info\LTVT\LTVT_v0_21_3_1_full_version\LDEM_875N_10M.IMG"
not compatible with "dem" data family



JR
Go to the top of the page
 
+Quote Post

2 Pages V   1 2 >
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 31st October 2024 - 11:47 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.