This shoulb be regarded as a test/demo of what you can do with data in the logfiles from your Lowrance plotter/sounder. All with the help of https://github.com/opensounder/python-sllib for interpreting the actual files.
You will need to have docker installed on your machine to follow the instructions. Also make sure that you have the sample-data submodule cloned.
git submodule update --init --recursive
There is an example of plotting a echogram but the procedure is not verified. You will get an output that will look plausible at least.
make build
# now wait while the image is being built
make run
# follow the instructions that and browse to the link provided by
# jupyter in the end
Could be from you linux terminal as well but you will have to make some adjustments.
docker build -t sllib-scipy-notebook -f containers/Dockerfile containers/
# this works in powershell on windows, adapt to your environment
docker run --rm -p 8888:8888 -e JUPYTER_ENABLE_LAB=yes `
-v "${PWD}:/home/jovyan/work" `
sllib-scipy-notebook