New in Electric
DisplayTypes(2f)Range/RangeDisplay.png) 
 
The Range display shows range measurements. Each one is a cone starting at the origin of the frame given in the header of the sensor_msgs/Range message and fanning out in the +X direction of that frame.
To display multiple ranges (like from a robot with several sonars), publish a TF frame at each sonar location. Publish the range messages with the corresponding frame_id in each header. Then in rviz, in the Range display properties, set "Buffer Length" to the number of range sensors on your robot.
| Properties | |||
| Name | Description | Valid Values | Default | 
| Topic | The topic on which to listen for Range messages. | 
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| Color | The color of the range cones | 
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| Alpha | Opacity of the range cones, 0 is transparent, 1 is opaque. | 0-1 | 0.5 | 
| Buffer Length | The number of range measurements to show on this topic. Only the most recent (Buffer Length) cones will be shown. | 1+ | 1 | 
