Issue in /detected_polygons topic type visualizationmsgs/MarkerArray
Hello. I am working on Carla+ROS(Melodic)+Autoware.ai.1.14.
When I try to avoid obstacles using velocity_set
and astar_avoid
nodes, I have to start the lidar_kf_contour_track
node.
But the published topic /detected_polygons
apparently has some issues as it throws an error in Rviz.
Error: marer array Text is empty or only consists of whitespace
and
Error: At least two points are required for a LINE_STRIP marker
.
This topic is only subscribed by Rviz, so I don't understand why the vehicle crashes into the obstacle instead of avoiding it.
Any help would be appreciated.
Your RViz is somehow receiving an empty text and an empty line to display. This is why it complains and shows error messages. The vehicle crashing should be unrelated to visualization. I suggest checking the
rostopic
and manually echoing it in the terminal. It could be a bug you are hitting on.Thank you for your answer. Yes, in the rostopic I have empty data types for some variables including this. But I use the standard node of Autoware.ai,
lidar_kf_contour_track
but still I get empty texts. What could be the reason of bug?Here is the rostopic echo: https://drive.google.com/file/d/1AtwJ...
And also to mention that the node
lidar_euclidean_cluster_detect
works fine and the output -->/cloud_clusters
is non empty(this is the input to the node :lidar_kf_contour_track
. The issue is with the nodelidar_kf_contour_track
but i am unable to debug.Sorry, I can not provide additional support, as it belongs to Autoware.ai.