asked on

Delphi Function DD°MM.mmm to DD.dddddd°

Hi !

I've been looking for some time now to get this figured out.

I have these two coordinates from a GPS Output :

(DD°MM.mmm)

3844.6793,N,00325.1856,W

I want them both converted to DD.dddddd°

Does anyone have a good function in DELPHI for this ?

e.g. for use as :

Edit1.text := convert(00325.1856,W)

Thanks !

With kind regards,

Paul

Ephraim Wangoya

Just to confirm
So if you run this
Edit1.text := convert(00325.1856,W)

What should the result be?

Geert G

you may want to check the delphiforfun website
it has a demo about long/lat conversion

http://www.delphiforfun.org/programs/MercatorDemo.htm

RaC-NL

ASKER

ewangoya:

For your question :

38.744655 := convert(3844.6793,N)

For the 00325.1856,W i have no idea what the converted value is,
it's negative, thats all i know, hence my question :)

I don't care if the result is a String or Extended.

Thanks !

Paul

Ephraim Wangoya

Use this formular

uses
  Math;

function ConvertDMToD(const Degrees, Minutes: Integer): Real;
begin
	if (Degrees + Minutes = 0)   then
     Result := 0
	else
    Result := Degrees * 1.0 + (Minutes / 60.0);
end;

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RaC-NL

ASKER

ewangoya:

Could you tell me how to use that with this as example 00325.1856 ?

I have no clue what the Degrees and minutes are with 00325.1856.

Thanks !

Ephraim Wangoya

003 should be DD
25.1856 should be minutes

Ephraim Wangoya

Two digits before decimal point are minute
the rest to the left are degrees
seconds are to the right of the decimal

Ephraim Wangoya

Also note that corrdinates that are W and S, you add a negative

ASKER CERTIFIED SOLUTION

Ephraim Wangoya

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