I have an algorithm that find from a location the nearest street.
Spiral approach:
In this case, the center of the spiral goes to the original location found using the GetLocation method, and I continue increasing the radius until I find a street address

But, I have the angle direction from a nmea string. So I can use latitude, longituden and bearing.
Well, I don't want to search by spiral approach but I wish to use a parallel search.

I wish to increment and decrement latitude and longitude by using bearing angle.

How I can this? What Math expression I must use in order to increment coordinate with same angle direction?[/img]

Try the Aviation Formulary:

http://williams.best.vwh.net/avform.htm


Lots of formula for this type of thing, including assumptions/etc.


Richard