1. At first,I run "roslaunch pi_tracker
skeleton.launch" on the command
line.And then the topic "/skeleton"
came out.So I run "rosrun pi_tracker
tracker_base_controller.py" on the
command line.And then the the topic
"/cmd_vel" came out.But the messages
on the topic "/cmd_vel" is always
like this: linear: x: 0.0 y: 0.0 z:
0.0 angular: x: 0.0 y: 0.0 z: 0.0
1. So I call the service
"set_command",and then the window
running the node
"tracker_base_controller" shows as
below:
"Traceback (most recent call
last): File
"/home/sven/ros_workspace/pi_tracker/bin/tracker_base_controller.py",
line 254, in
TrackerBaseController() File
"/home/sven/ros_workspace/pi_tracker/bin/tracker_base_controller.py",
line 82, in __init__ if
self.tracker_command == 'STOP' or
(self.skeleton['confidence']['left_hand']< 0.5 and
self.skeleton['confidence']['right_hand']< 0.5): KeyError: 'left_hand' [INFO]
[WallTime: 1338390962.048561]
Shutting down Tracker Base
Controller Node." Obviously,the node
"tracker_base_controler" stopped
running. Is there any one who can
help me?
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