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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. #1
    PeppeM is offline Junior Member Yellow Belt
    Join Date
    Apr 2006
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    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. #2
    Winwaed's Avatar
    Winwaed is offline Mapping-Tools.com Black Belt
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    Try the Aviation Formulary:

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


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


    Richard
    Winwaed Software Technology LLC
    http://www.winwaed.com
    See http://www.mapping-tools.com for MapPoint Tools

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