[OSGeo Africa] Request for program to convert, correct link

Chris chris at airphotoafrica.co.za
Mon Mar 10 09:19:30 PDT 2014


    Thanks Aslam ,

    Perhaps someoone can discuss the math behind the Excel "Utility" 
    ( and perhaps a bit of VB for applications )

    In this way one can learn how to construct their own conversion -- 
    whatever.

    Should be second nature for a [PLATO] qualified surveyor ?

    CM


On 10 Mar 2014 at 15:19, Aslam Parker wrote:

> Sorry 
 
> That was the wrong link. The correct link is
> http://ngi.gov.za/index.php/technical-information/software-and-utilities/n
> gi-coordinate-conversion-utility
 
> You have the option of three reference ellipsoids
 
> >>> Aslam Parker 3/10/2014 2:24 PM >>>

> Hi
> 
> 
> NGI Coordinate Conversion Utility
> Please make use of this freely downloadable Excel based utility that
> can convert from:
> 1. Gauss Conform -> Geographic, Transverse Mercator, UTM and Geocentric
> Cartesian coordinates 2. Geographic -> Gauss Conform, Transverse Mercator,
> UTM and Geocentric Cartesian coordinates      3. Geocentric Cartesian ->
> Geographic, Gauss Conform, Transverse Mercator and UTM coordinates 4.
> dd.ddddddd <-> dd mm.sssss <-> dd mm ss.sssss
> http://www.ngi.gov.za/index.php/technical-information/software-and-utiliti
> es/ngi-coordinate-conversion-utility
> 
> 
> 
> >>> Tshepisho Lefenyo <tshepisho85 at gmail.com> 3/10/2014 2:16 PM >>>
> 
> Good day
> I would like to request for any program that can convert Cartesian X
> and Y to decimal degrees.
> Your assistance will be highly appreciated.
> Kindest regards
> TA Phasha



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