Quiz 2 which frame stays fixed problem

1

Dear all,

in Quiz 2 the first task is:

Find the frame that they share. You can find it by moving the robots around and seeing which frame stays fixed in the same position. TIP: it has to do with odometry.

I tried to make fixed frame in rviz as robot1_tf/odom, or robot1_tf/odom, but I cannot reproduce the picture in tutorial, only frames of one robot displays.

Do I misunderstand something?

Thank you for your help!

Best regards
Kailin

2

Hello @kailin.tong,

It’s normal that you cannot see frames of both robots, as said here:

Captura de pantalla 2020-09-14 a las 11.38.30
Captura de pantalla 2020-09-14 a las 11.38.302032×876 408 KB

To make it possible you need to complete the Quiz by publishing the static transform between both shared frames.

Best,