Downloaded data.csv does not seem to be correct

[ntouev]

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]

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]

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

[ntouev]

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