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ROS Stream prints spurious characters to log

asked 2012-01-01 08:52:48 -0500

Aditya
282 ●13 ●16 ●26

updated 2012-06-13 05:00:32 -0500

Asomerville
2743 ●74 ●99 ●133 http://www.resquared.com/

I launched a node with roslaunch. The node uses ROS_*_STREAM macros to log information. The log file created by the node however shows spurious characters. Following line shows an example

^[[0m[ INFO] [1325453858.376186830]: Alasca scan: time=-0.000000, points=31, nodes=11^[[0m

Every line in the log file starts and ends with "^[[0m". Does anyone know what might cause this behavior. This happens with not just this node, but all nodes that I launch with roslaunch.

ROS: Electric, OS: Ubuntu 11.10 x86

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