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I'm trying to add a rostopic -pub node into a launch file, but I don't know what I have to put in the launch file command line.
I guess this has to be the structure:
<node pkg="rostopic" type="pub" name="arbitrary_name" args=" /pkg_topic pkg_executable_file/message" output="screen"/>
Thank you for your comments.
Actually the binary, i.e., type is also rostopic. The pub is just an argument passed to that. So, if you just move the pub to args, it should work:
<node pkg="rostopic" type="rostopic" name="arbitrary_name" args="pub /pkg_topic pkg_executable_file/message" output="screen"/>
I use it like this:
<node pkg="rostopic" type="rostopic" name="default_camera_info" args="pub /openni2_grabber/camera/rgb/camera_info sensor_msgs/CameraInfo --latch --file=$(find openni2_grabber)/launch/default_high.camera_info" output="screen"/>
It works, but when I use command lines I have to write a option of a integer list in which each one sends a message for different actions, for example 1 writes hello world, 2 writes have a nice day and 3 writes goodbye.
My command line is something like this
$ rostopic pub -1 /pkg_topic /pkg_executable_file/Message -- 1 "none"
So I write the launch file like this
<node pkg="rostopic" type="rostopic" name="arbitrary_name" args="pub /pkg_topic pkg_executable_file/message > -- 1 " output="screen"/>
When I try to add the last two commands the window closes.
Asked: 2015-08-18 06:05:24 -0600
Seen: 6,830 times
Last updated: May 26 '18
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