On Aug 3, 12:31 pm, Arun <[email protected]> wrote:
> Hi Everyone,
> I want to implement geofencing in my map. A boundary like a circle,
> rectangle etc. is specified and if a vehicle comes into that area an
> alert has to be sent. Is there any way to implement it other than
> using polygens
Polygons is easy because Mike's EPoly extension adds a .contains
method. But if you don't want to use polygons, you are limited to
calculations and if statements like the following pseudocode:
if (vehicle.lng < east) and (vehicle.lng > west) and (vehicle.lat >
south) and (vehicle.lat < north) then { inside rectangle }
The conditions and calculations are more complicated for a circle; and
for an irregular shape it's likely to impossible other than by using a
polygon.
Andrew
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