sacar datos sphinx ground truth

[MikeMakes]

Ah, para sacar datos de Sphinx por si queremos comunicarlos con algo de ros que no corra en esa version modificada de gazebo tenemos:

• https://forum.developer.parrot.com/t/read-ground-truth-from-simulation/8663
• https://forum.developer.parrot.com/t/reading-altitude-velocities-and-acceleration-of-bebop-1/8137

Originally posted by @MikeMakes in https://github.com/MikeMakes/bebop/issues/9#issuecomment-753339994

[MikeMakes]

Hay que testear que la solución del primer link tire:

ocrave Parrot Feb '19 Hi, Telemetry data is logged via telemetryd, a process that runs in the background when sphinx gets started. You can query its data with tlm-data-logger: tlm-data-logger inet:127.0.0.1:9060 | grep niscient_bebop2.worldPosition.x I guess you can redirect this data into a rostopic with a piped input: tlm-data-logger inet:127.0.0.1:9060 | awk -F"[ ',]+" '/omniscient_bebop2.worldPosition.x:/{print $2}' | rostopic pub std_msgs/Float32