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## Find a street by parallel search

This is a discussion on Find a street by parallel search within the MapPoint Desktop Discussion forums, part of the Map Forums category; I have an algorithm that find from a location the nearest street. Spiral approach: In this case, the center of ...

1. Junior Member Yellow Belt
Join Date
Apr 2006
Posts
13

## Find a street by parallel search

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]

2. Try the Aviation Formulary:

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

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

Richard

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