carlolsson/matulog

matulog is a GUI for analyzing .ulg files in Matlab

Note: This repo is not maintained anymore, instead please use https://github.com/CarlOlsson/ulog_explorer or https://docs.px4.io/master/en/log/flight_log_analysis.html

• Requirements: matlab2016a (or a newer version) and pyulog is needed for matulog to run, install the latter using pip install pyulog

• clone or download the repo

• in Matlab run matulog

• Open a ulog file

• Press control key to add variables from different topics

• Press right and left arrow key to switch between topics and fields

matulog's Issues

Todo

• Fix colors for plotting the variables, so they don't change color when new variables are added or removed.
• Create a re-sampled version of the log and add a topic calculated in pre-processing with interesting fields, such as magnetometer norm, euler angles etc.
• Save entire logfile to workspace button
• Save selected part of logfile to workspace button
• Calculate mean of selected part of displayed variables button
• Calculate variance of selected part of displayed variables button
• Calculate fft of selected part of displayed variable button
• Convert the .ulg file to a .mat without going via .csv files (for speed)
• edit the cursor function to display the all variable names and the corresponding value
• Implement button for exporting the plot to image file
• Implement a button to save plot to clip board. E.g for easy uploading to github
• Implement an option in axes context menu to rescale all variables to [-1 1]
• Constant list of displayed variables when changing logfile for easy comparison of data
• Implement user specified "presets" of a list of variables to display
• Implement an easy to maintain interface for additional functions
• Implement trajectory analysis (2D/3D plot of flight path)
• Fix the x axis such that it displays all topics from start to end
• Implement "view parameters" and "view messages" buttons
• Implement vertical lines displaying VTOL transition
• Make the zoom not change when adding/removing variables to plot
• Display NaNs
• Add button to convert all ulg files to mat files in folder
• add button to redo preprocessing
• Implement button to move legend
• In preprocessing, create a topic for the estimator flag bitfields
• When starting the gui, add the folder to the path

if you press open log file and then cancel, do nothing.

now it renders the figure again

how to convert the flight data in .ulg formate to csv or xcl

always plot from beginning of logfile

now the x axis starts from the first sample in the selected topic fields. This is confusing, it should always plot from the when logging started

only save defaults.mat if in correct folder

handle case when trying to open log at read only file location

if trying to open log on an SD card which is read only this try statement does not go to catch

try
	eval(command);
catch
	disp('ERROR: failed to run ulog2csv, try: pip install pyulog');
end

Check what happens if you have ulg file names with space

Check if the cursor really shows the correct sample and not one offset