Geolocation.setThreshold
From GiderosMobile
Available since: Gideros 2012.8
Description
Sets the minimum distance (in meters) threshold. If threshold distance is greater than 0, 
a location event will only be dispatched if the device moves by threshold. The default value 
is 0 (as frequently as possible).
 Geolocation.setThreshold(threshold)
Parameters
threshold: (number) the minimum distance threshold