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Showing posts from September, 2011

Geofencing

Today's post is cross-posted from GIS Lounge.

         With all the location-based social media applications out there, it’s only logical that, in addition to being able to restrict access based on ones social groups (or circles), that geographic boundaries also be used as a restrictive parameter.  That capability is called a geofence, a virtual way to set the geographic boundaries that a user wants to fence off for privacy reasons or to trigger a specific action.

         Flickr recently made news with the introduction of its geofence privacy feature. Users can draw circles on a map to delineate the geographic area they want to create viewing restrictions for certain geotagged photos.  Once a geofenced area is delineated, specific users can be flagged with permissions to view those photos.  Up to ten geofenced areas can be drawn.  The Flickr blog has more details about the brainstorming that led to this new geofence feature and specifics about the feature itse…