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Cellular forums Home > Archive > GPS > December 2007 > GPS coordinates conversion?
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| Author |
GPS coordinates conversion?
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| __zip__ 2007-12-28, 12:33 pm |
| Hi,
I would like to convert GPS coordinates to Decimal Degrees.
I am using following formula: degrees + minutes/60 .
GPS format is defined as ddmm.mmmm N/S latitude and dddmm.mmmm E/W
longitude.
I just put numbers in the formula and get the result , but what do I
have to do with N/S or E/W, is there (-) sign that I must be aware of?
eg. Now my position is N lat and E lon ... do I have to put (-) sign
before numbers if I am S lat or W lon??
tnx in advance.
| |
| Bruce 2007-12-28, 12:33 pm |
| There's no single standard way to represent geo coordinates, it depends on
for example what software you want to use them with.
Also BTW there is no such standard format for GPS. Internally it uses
cartesian coordinates, your GPS receiver then converts those to lat/long
when displaying the coords.
"__zip__" <zip@got.no.mail> wrote in message
news:fl3ab8$aaq$1@ga
rrison.globalnet.hr...
> Hi,
>
>
> I would like to convert GPS coordinates to Decimal Degrees.
>
> I am using following formula: degrees + minutes/60 .
>
> GPS format is defined as ddmm.mmmm N/S latitude and dddmm.mmmm E/W
> longitude.
>
> I just put numbers in the formula and get the result , but what do I
> have to do with N/S or E/W, is there (-) sign that I must be aware of?
>
> eg. Now my position is N lat and E lon ... do I have to put (-) sign
> before numbers if I am S lat or W lon??
>
> tnx in advance.
| |
| sigurdhu 2007-12-28, 3:33 pm |
| Zip,
See for instance http://home.online.no/~sigurdhu/Deg_formats.htm
--
Sigurd
N 59°56' E 10°42' (WGS 84)
Size and shape of the Earth (WGS 84)?
Garmin MapSource map sizes?
Garmin GPSmap 276C, GPS 12 MAP and GPS III (PLUS)?
See http://home.online.no/~sigurdhu
"__zip__" <zip@got.no.mail> skrev i melding
news:fl3ab8$aaq$1@ga
rrison.globalnet.hr...
> Hi,
>
>
> I would like to convert GPS coordinates to Decimal Degrees.
>
> I am using following formula: degrees + minutes/60 .
>
> GPS format is defined as ddmm.mmmm N/S latitude and dddmm.mmmm E/W
> longitude.
>
> I just put numbers in the formula and get the result , but what do I
> have to do with N/S or E/W, is there (-) sign that I must be aware of?
>
> eg. Now my position is N lat and E lon ... do I have to put (-) sign
> before numbers if I am S lat or W lon??
>
> tnx in advance.
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