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When I write a launch file,I try to run a node with command line arguments. Just like:
<node pkg="my_pkg" type="my_type" name="my_node" output="screen" args="--my_arg my_num">
But when i check the argv parameters,i found there're more than three, the additional two is
__name:=my_node
__log:=xxxxx.log
What's wrong with it? Is there any solution to skip the aditional two comand line?
I would not call this a "problem", but I can imagine you'd like to somehow deal with this.
See #q272267.
Edit: and if the program you're launching is actually a ROS node, then you can make use of the Python shown in #q272267 directly.
But know that ROS nodes typically don't take command line arguments, but use ROS parameters.
Asked: 2018-10-01 05:01:16 -0500
Seen: 197 times
Last updated: Oct 01 '18
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In a nut shell nothing is wrong with it. ROS uses command line arguments to pass standard parameters to the node. The args property in the launch file just adds extra arguments onto these. Can you simply ignore them when processing arguments in your node?
Thank you.