How to rostopic echo only the positions of x and y from the topic call [namespace/move_base/NavfnROS/plan]

asked 2020-02-13 22:28:38 -0600

Jiue Lin gravatar image

I'm a beginner in ROS and I'm struggling with this simple issue. My objective is to calculate the path planned by using navigation stack package, hence I need to retrieve all the x,y position from the array. I tried ~/namespace/move_base/NavfnROS/plan >> coordinates.csv but the data inside the csv file is messy. Perhaps there's someway to save only the x,y coordinates for the sake of convenience for scripting. Thanks in advance.

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Could you please explain in a bit more detail what your actual goal is? Because this is something that you could do easily with a simple subscriber...

mgruhler gravatar image mgruhler  ( 2020-02-14 05:36:18 -0600 )edit