[QGIS-ZA-user] Coordinate conversion from Cape Datum Lo27? to EGS 84

[FC Basson]

Just a slight edit to the Google Maps link:
https://maps.app.goo.gl/VVS9XDfhjp88dXw97

And if you prefer OSM:
https://www.openstreetmap.org/?mlat=-26.82808180999955&mlon=28.591287809999518#map=12/-26.8281/28.5913


________________________________
From: qgis-za-user <qgis-za-user-bounces at lists.osgeo.org> on behalf of FC Basson via qgis-za-user <qgis-za-user at lists.osgeo.org>
Sent: 21 March 2024 20:09
To: qgis-za-user at lists.osgeo.org <qgis-za-user at lists.osgeo.org>
Cc: FC Basson <FC.Basson at westerncape.gov.za>; j.fouche9 at gmail.com <j.fouche9 at gmail.com>
Subject: Re: [QGIS-ZA-user] Coordinate conversion from Cape Datum Lo27? to EGS 84

I was able to locate the farm and can confirm that the coordinate should be in LO 29.
[cid:9097bc9e-a4bc-4e31-84e3-ef3acdeccfcc]
For GIS purposes, we use the rotated coordinate system, so the coordinates should be X: -40600, Y: -2968350, which converts to geographic coordinate of Lat: -26.828082, Lon: 28.591288, if you assume the input datum is Cape.  And here is a link to the location in Google Maps: https://maps.app.goo.gl/bEwU4pMa35Db2gpNA

Regards

FC Basson


________________________________
From: qgis-za-user <qgis-za-user-bounces at lists.osgeo.org> on behalf of Jordaan Fouche via qgis-za-user <qgis-za-user at lists.osgeo.org>
Sent: 21 March 2024 17:14
To: qgis-za-user at lists.osgeo.org <qgis-za-user at lists.osgeo.org>
Cc: j.fouche9 at gmail.com <j.fouche9 at gmail.com>
Subject: [QGIS-ZA-user] Coordinate conversion from Cape Datum Lo27? to EGS 84


Have a set of old borehole data that I wish to plot in QGIS.



They were clearly drilled pre 1994 (Hartebeesthoek) and I am really struggling to plot them on QGIS. I suspect they may be Cape Datum.



The example that I am including is on the farm Rietvley 600 in the Balfour district.



The coordinates are legible as X:2968350;Y: 40600.



Can somebody please help me.





Jordaan Fouche

Portion 11

Van Reenen Country Estate

Van Reenen

3372

Republic of South Africa



Tel: +27 (0)82 555 4227



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