In a launch file I want to remap parameters of my node to other, already existing parameters.
It is working for global parameters but not for private ones.
This is a simple example node "param.py":
#!/usr/bin/env python
"""Just testing parameter mapping."""
import rospy
rospy.init_node("param")
print(rospy.get_param("foo"))
print(rospy.get_param("bar"))
print(rospy.get_param("~baz"))
The node is launched by this launch file "param.launch":
In a terminal I run:
rosparam set foo 42
roslaunch mypkg param.launch
The output is:
42
42
KeyError: '~baz'
How can I make it work?
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