ros-visualization/rviz — pull request #533 by dgossow (2012-10-15 19:23:01+00:00)
Title: Changed parameter names and documentation in Arrow class from 'radius' to 'diameter'

Also, changed documentation on http://www.ros.org/wiki/rviz/DisplayTypes/Marker#Arrow_.28ARROW.3D0.29

With this and the recent change from aleeper, the code & ROS API should all agree.

That means, what was previously named 'radius' on the wiki was actually 'double radius'.