Pose Calibration segfaults

m13

Hi. The pose calibration on my Notochord (stable/master) fails with a segmentation fault reported in web server logs. The Blender add-on also fails.

My setup has a minor tweak, as channel 2 isn't working, hence I've placed 'base' on channel '5'.

I've dumped the calibration data (csv & json) and fed it into pose-calib on my computer, that worked.

Maybe the error happens when applying the calibration...? I haven't tried to run pose-calib on the Pi yet.

So I switched to the development version's of the module and control-server:

http://notochord.local/ now collides with a REST endpoint, but http://notochord.local/home works
http://notochord.local/pose collides with a REST endpoint for the animation

when i used the pose/ endpoints to run a calibration I got multiple

Fatal error, terminating: Invalid sensor calibration found (0x46001b), ver: -1291

messages.

a call to /pose/data logs:

Empty DataFrame
Columns: [time(msec), node_label, q_w, q_x, q_y, q_z, g_x, g_y, g_z, a_x, a_y, a_z, m_x, m_y, m_z]
Index: []

a call to /pose/index logs

Insights/Advices much appreciated. 🙂

P.S.
I'm back on the official release again and notochord-module, file pyx/notochord/calibration.pyx I added a check

def apply_calibration(pre_quat_dict, post_quat_dict):
        if get_runtime().get_armature().get() == NULL:
                raise Exception("No Armature")

and now get an exception instead of a segfault during /pose/run.

daylanKifky

Hello @m13,

This is probably happening due to some recent changes we introduced in the sensor and pose calibration procedures. We are in the process of integrating the recent changes to make they usable from the remote console. Will keep you updated

m13

hey daylanKifky. i've tracked it down so far, my configuration wasn't correct. once i had a proper armature in the config it worked.

(one error was having no armature, another was not having one which had all bones in it in the proper order. two of my merge requests add a check for nullptr and print a message. don't feel obligated to merge 'em, but they should give you an idea were i bumped my head.)