Difference between revisions of "Extract Angle Cam Image from CODA files"
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Revision as of 20:37, 26 April 2022
SHMS and HMS Angle Cam Images in CODA files
The angle camera images are stored at the start of every CODA run. They can be extracted using the /home/coda/coda/scripts/Angle_snapshots/get_coda_photos tool.
This script uses evio2xml to support extracting the image so you will need to run it in a place that has access to the coda tools. There are lots of ways to do this, but the simplest is to just login to cdaq@cdaql1.
Login to the cdaq cluster, cd into an appropriate directory, and make a symlink of the script here:
% ln -s /home/coda/coda/scripts/Angle_snapshots/get_coda_photos .
Or copy the script if you want:
% cp /home/coda/coda/scripts/Angle_snapshots/get_coda_photos .
The basic syntax is "./get_coda_photos <coda_file.dat>". It will extract the angle-cam images into your current working directory. For example:
./get_coda_photos /cache/hallc/spring17/raw/coin_all_07977.dat
Generates:
SHMS_angle_07977.jpg, and HMS_angle_07977.jpg
If you are in a directory with symlinks to raw/, cache/, etc, then you can just give it the filename and it will search the usual list of paths automatically like the analyzer does:
./get_coda_photos coin_all_07977.dat