midPoint
Accepts an event-station pair if the midPoint between them is within the given area. Areas can be any valid area, including BoxArea, and GlobalArea.
Example
<midPoint> <boxArea> <latitudeRange> <min>18</min> <max>75</max> </latitudeRange> <longitudeRange> <min>18</min> <max>75</max> </longitudeRange> </boxArea> </midPoint>
Places this can be found
eventStation
In eventStation there is a choice between all of the following