You'd start a directional search just like any other run-of-the-mill search. I, for instance, might run a letterbox search for Seattle, WA, and AQ will display all boxes within 30 miles of Seattle. It's a handy little search and has been the core of letterbox searches since AQ went live. But let's say I'm driving northwest from Seattle. I obviously wouldn't care about all boxes within 30 miles of Seattle--I'd really only be interested in boxes northwest of Seattle, the direction I'm headed!
That's what I'm talking about a directional search--an additional layer on top of the regular location-based search that would pick out only those boxes located in a specific direction from your location.
And it occurred to me... it really shouldn't be very difficult to implement such an option. In theory (knock on wood!), it could even be easy to implement!
So I sat down this evening and started working on it. And it was a relatively easy option to add!
It's a new Advanced Search option that shows up right after the distance. By default, no direction is selected, but you can choose N, NE, E, SE, S, SW, W, or NW as options.
And now, I can run a search for boxes northwest of Seattle. Just look at all those directional arrows, like little soldiers and marching in the same direction! =)