Ardupilot SITL: graphing halts map updates?


I’m seeing something I don’t understand… I’m assuming I’m doing something wrong. When I start a graph from the SITL console (for example, “graph GLOBAL_POSITION_INT.relative_alt*0.001 altitude(SCALED_PRESSURE)” ), I see that the ardupilot SITL map stops updating. Is this expected behavior?

Not sure if it’s related, but I’m also occasionally seeing that on startup the initial aircraft position doesn’t seem to update the map either.

This is a build of ArduPilot-4.0.1. I don’t see anything in the release notes for versions beyond 4.0.1 that seem related to what I’m seeing.

I’m currently starting the sim via a command line like: -f jsbsim:renegade -v ArduPlane -m “–mavversion 1.0 --streamrate 50” -L --add-param-file ~/ardupilot/Tools/autotest/aircraft/renegade/ardupilot.param --map --console

I would like to be able to show the graphs while the map is updating in order to debug a behavior I’m seeing.

Thank you!

  • J.