Downloaded data.csv does not seem to be correct

ntouev commented 7 months ago

Downloading data to a csv file does not seem to be correct.

Plotting the downloaded data results to a graph slightly different than the one shown the UAV Log Viewer. See two graphs below.

UAV Log Viewer plot

Using Excel to plot the downloaded data

Downloading the data with mavlogdump.py results to slightly different dataset.

Discuss thread: https://discuss.ardupilot.org/t/uav-log-viewer-downloaded-data-csv-problem/116881 Tested Flight log: https://drive.google.com/file/d/13SzHmCFXVaDOSkUoY7rSCYr1NIuQwrz_/view?usp=sharing

Williangalvani commented 4 months ago

the issue here seems to be that we are just holding the last value instead of doing the linear interpolation that plotly does in chart. we are also re-sampling the logs at 100ms, as it is hard to decide what to do with the timestamp once you have multiple messages at different times being exported. I'll take a look at it

Williangalvani commented 4 months ago

Hi, could you try it again? your log is no longer accessible, so I can't compare directly

ntouev commented 4 months ago

Hi thanks for looking into that. Sure here is the log. https://drive.google.com/file/d/1xGwFS7I33BIpxaZwPSNQ5VpdIrcpljsk/view?usp=sharing

ArduPilot / UAVLogViewer

Downloaded data.csv does not seem to be correct #415