Hi all,
Does anyone know of a way to view the Venus Express Data without purchasing the $2500.00 IDL software?
I get the impression thats the only way. I am a novice amateur and looking for alternatives. thanks
ftp://psa.esac.esa.int/pub/mirror/VENUS-EXPRESS/VIRTIS/VEX-V-VIRTIS-2-3-EXT1-V2.0/
PDS data is supposed to be fairly simple and easy to interpret. There are a number of ways to view PDS QUBE format (they're really just stacked 2D images.)
GDL is an open-source alternative to IDL that may be compatible with the IDL scripts on these volumes, http://gnudatalanguage.sourceforge.net/ But if you don't know IDL already there is likely going to be a steep learning curve.
ISIS3 can only partly use the vex data
there is no camera model
so viewing only from the IMG/LBL images
basically " pds2isis" and "qview"
and GDAL can move the cub to a tiff or fits or any of the many supported formats
for other data
if it is a text based .tab there is a lbl ( label) matching file
the label informs you as to what each colum in the table file is
if it is not TOO big then you can even use a spread sheet
import the table file
then export the columns needed as CSV files
Based on forum advice here I did get a Linux Computer running with Debian 8.
I installed GDL and all the support requirements installed I blieve correctly.
I found this workshop and I was trying work through it in order to work with the Venus Express Data and imagery.
http://www.sciops.esa.int/SB/PSA/docs/VIRTIS-VEX_Data_Workshop_DRAFT.pdf
Location of content to do first exercise was here:
ftp://psa.esac.esa.int/pub/mirror/VENUS-EXPRESS/VIRTIS/VEX-V-VIRTIS-2-3-V3.0/DATA/
When I try the first excercise though I get the following error after attempting first excercise. % Execution halted at: $MAIN$
I am wondering if their are any GDL users or experts out their who might shed some light on my problem?
Google at this point is out of info to help me and their no tech support for this question to go to.
Below is what happened after I ran the program from GDL from a Terminal. Anyone know what the errors mean?
Pretty detailed question but I have hit a brick wall and looking for any info to make some headway.
If your a Linux user you could try this excercise if you wanted to after installing GDL to see what I am talking about.
thanks
GDL - GNU Data Language, Version 0.9.5
- For basic information type HELP,/INFO
- Default library routine search path used (GDL_PATH/IDL_PATH env. var. not set):
+/usr/share/gnudatalanguage/lib
- Please report bugs, feature or help requests and patches at:
ttp://sourceforge.net/projects/gnudatalanguage/
%** Personal settings are loaded and active **
GDL> cd, '~/VenusProject/virtis_data/MTP018/VIR0499/CALIBRATED'
GDL> cubeFile='VIR0499_02.CAL'
GDL> qube=virtispds(cubeFile)
% Compiled module: VIRTISPDS.
% Compiled module: STRSPLIT.
% Compiled module: V_HEADPDS.
% V_HEADPDS: ERROR - VIR0499_02.CAL: Error opening file VIR0499_02.CAL
% Error occurred at: V_HEADPDS 117 /home/mydirectory/VenusProject/LECTUREPDS2_8_1/v_headpds.pro
% VIRTISPDS 195 /home/mydirectory/VenusProject/LECTUREPDS2_8_1/virtispds.pro
% $MAIN$
% Execution halted at: $MAIN$
I know nothing about this tool, but your error description is multiple lines. The issue is "Error opening file VIR0499_02.CAL" which probably means the permissions or path are not allowing the program to open the file for reading.
Powered by Invision Power Board (http://www.invisionboard.com)
© Invision Power Services (http://www.invisionpower.com)