rviz_plugins.xml

<library path="lib/libobstacle_detector_gui">

  <class name="Obstacle Extractor"
         type="obstacle_detector::ObstacleExtractorPanel"
         base_class_type="rviz::Panel">
    <description>
      Obstacle Extractor Panel.
    </description>
  </class>

  <class name="Obstacle Tracker"
         type="obstacle_detector::ObstacleTrackerPanel"
         base_class_type="rviz::Panel">
    <description>
      Obstacle Tracker Panel.
    </description>
  </class>

  <class name="Obstacle Publisher"
         type="obstacle_detector::ObstaclePublisherPanel"
         base_class_type="rviz::Panel">
    <description>
      Obstacle Publisher Panel.
    </description>
  </class>

  <class name="Obstacles"
         type="obstacles_display::ObstaclesDisplay"
         base_class_type="rviz::Display">
    <description>
      Obstacles Display
    </description>
    <message_type>obstacle_detector/Obstacles</message_type>
  </class>
  
</library>