The problem with running the SeaDAS gpt command.

[ynrs]

My SeaDAS version is 9.0.1. While most functions run normally, I found that I cannot run gpt from the command line. Do I need to install anything additional?

[OB SeaDAS - xuanyang02]

gpt in SeaDAS 9.0.1 should work. Please share with us the error message you got.

Here is the gpt tutorial page -- https://seadas.gsfc.nasa.gov/help-9.0.0/GptCookbook/gptTutorial.html

There is a know bug that you need to use the full path for files and commands.

[treble]

With the linux version I always have to fix the path to java in the gpt file before it works (removing "Contents/Home/" near the end of the file).

Code: Select all

diff gpt gpt_orig
448c448
< exec "$app_home/jdk-11.0.19+7-jre/bin/java" -Dexe4j.moduleName="$prg_dir/$progname" -Djava.library.path=$LD_LIBRARY_PATH "-Dsnap.mainClass=org.esa.snap.core.gpf.main.GPT" "-Dsnap.home=$app_home" "-Djava.awt.headless=true" -classpath "$local_classpath" org.esa.snap.runtime.Launcher  "$@"
---
> exec "$app_home/jdk-11.0.19+7-jre/Contents/Home/bin/java" -Dexe4j.moduleName="$prg_dir/$progname" -Djava.library.path=$LD_LIBRARY_PATH "-Dsnap.mainClass=org.esa.snap.core.gpf.main.GPT" "-Dsnap.home=$app_home" "-Djava.awt.headless=true" -classpath "$local_classpath" org.esa.snap.runtime.Launcher  "$@"

[OB SeaDAS - xuanyang02]

Thanks for letting us know! We'll fix our code accordingly.

[zhigang]

Yes, the gpt command still include /Contents/Home so that it failed.
I fixed the gpt file as treble suggested, and it works well.

[treble]

For the seadas_10.0.0_mac_aarch64 version gpt is not working (I haven't tested the linux version yet). It can't find the .install4j directory. I can only get it to work by copying an older version of gpt (I used the one from seadas 8.4.1) and adjust the java path again as described earlier in this thread.

The last line now reads:
exec "$app_home/jdk-21.0.8+9-jre/Contents/Home/bin/java" - ...

[OB SeaDAS - xuanyang02]

Unfortunately, gpt still does not work in SeaDAS 10

[treble]

That is too bad. It does seem to work though with 10.0.0 using the tweaks I posted earlier. At least I can Mosaic with gpt, haven't tried much else.