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Reverse Geocoding

This is a discussion on Reverse Geocoding within the MapPoint Desktop Discussion forums, part of the Map Forums category; Hi, My company has a product called ULTRATRACK, it can track any object like vehicles, marines, planes etc. Each unit ...

  1. #1
    joesebi is offline Junior Member White Belt
    Join Date
    Jul 2003
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    Reverse Geocoding

    Hi,

    My company has a product called ULTRATRACK, it can track any object like vehicles, marines, planes etc. Each unit will send me the latitude and longitude received through a GPS antena. So i need the reverse geocoding inorder to find out the location.

    I tried the OCX of two other company and those are not satified me. But those have routines to find out the address ( block, street, city, state and zip code) from a latitude and longitude.

    MapPoint 2002 has a routine to point out specified latitude and longitude on a map.

    I wish to get some routine which can return the address also. This is a major requirement to use mappoint with our application. Hope i can have some routines in the new version of mappoint.

    Thanks
    joe

  2. #2
    Eric Frost's Avatar
    Eric Frost is offline Administrator Black Belt
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    There are some techniques for reverse geocoding with MapPoint, see three articles on this web site.. but note that reverse geocoding is not a supported feature in MapPoint, the techniques are hacks and not ideal.

    Eric
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  3. #3
    joesebi is offline Junior Member White Belt
    Join Date
    Jul 2003
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    Reverse geocoding

    Hi Eric,

    Here is one old Q & A related to Reverse Geocoding.

    http://www.mp2kmag.com/mappointqa.asp?p=users&id=399

    I tried the same thing to implement in Delphi. I couldnt get all properties.

    Here is my piece of code. I put the TApplication Component on the form.

    procedure TForm1.SpeedButton1Click(Sender: TObject);
    Var
    Addr : String;
    Loc : Location;
    oResult : FindResults;
    FMap : _map;
    begin
    FMap := Application1.ActiveMap as _Map;
    Loc := FMap.GetLocation(40.778, -124.1827,1) as Location;
    Loc.GoTo_;
    oResult := FMap.ObjectsFromPoint(FMap.LocationToX(Loc),FMap.L ocationToY(Loc)) as FindResults;

    end;

    In VB they are declaring variable FMap as MapPoint.Application. How we can delcare that variable. I used the TApplication instead of that.

    Thanks,
    joe

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