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Hi!
Is it possible to publish negative values via rostopic pub ? I tried
rostopic pub -1 /my_point geometry_msgs/Point 1 2 3
with no problem, but when I try
rostopic pub -1 /my_point geometry_msgs/Point 1 -2 3
it says an error:
Usage: rostopic pub /topic type [args...]
rostopic: error: no such option: -2
Is it anyhow possible to publish negative values from terminal?
See also the comment here on using negative numbers with ROS command-line tools. As described in the link, you can use the -- flag to tell the parser to stop looking for additional command-line options.
So, the following should also work:
rostopic pub -1 /my_point geometry_msgs/Point -- 1 -2 3
You can try
rostopic pub -1 /my_point geometry_msgs/Point '{x: 1, y: -2, z: 3}'
Here is the page YAML on the ROS command line
Asked: 2013-04-26 03:49:11 -0600
Seen: 5,761 times
Last updated: Apr 27 '13
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