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For frame [laser]: Frame [laser] does not exist

asked 2018-08-07 20:57:24 -0500

frodyteen
62 ●15 ●19 ●24

I am running ubuntu 14.4 indigo. I downloaded this line extraction packet.. I then roslaunch husky_gazebo husky_playpen.launch and roslaunch husky_viz view_robot.launch to start a husky simulation. Then, I followed the line extraction package instruction and started roslaunch example.launch. I checked that both /line_segments and /line_markers are giving me outputs by rostopic echo. Now, I am trying to make the line marker show up on rivz, but I am running into the following error when I added the marker For frame [laser]: Frame [laser] does not exist a picture is shown below: image description

anyone have suggestions on this? thank you.

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answered 2018-08-07 21:17:54 -0500

stevejp

929 ●1 ●8 ●18

The line extraction node is trying to publish the markers in the laser frame, which doesn't exist because you probably haven't provided a transform. You should set the frame_id parameter (see package parameter definitions here) to a frame which is defined in your tf_tree.