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Questions tagged [south-africa]

For Questions which are specific to the country of South Africa.

3
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1answer
111 views

Format and coordinate flip of the Projected Hartebeeshoek Coordinates?

Could someone please explain (or point me to a place that explains) what the coordinate system for Wg23 (Hartebeeshoek Lo23) should look like on a map? There is a coordinate flip that constantly comes ...
1
vote
1answer
229 views

Creating a custom CRS for the South African coordinate system (SACRS) in QGIS?

My question relates to creating a custom CRS of the official coordinate system used in South Africa, called SACRS. The SACRS is a projected coordinate system that must be referenced to BOTH the "...
1
vote
1answer
215 views

Data flips N/S orientation when projecting from GCS WGS84 to PCS Hartebeesthoek94/LO25

I need to populate area field for a property layer in South Africa, but to do so I have to project the data from WGS84 to Hartebeesthoek94/LO25, a standard projection for South Africa which is ...
1
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0answers
232 views

Coordinate system for South Africa

What coordinate System can I apply to South Africa in GE Smallworld 5.1?The CS units should be in meters. 1.I understand that the datum used is 'hartebeesthoek_1994' , Is it necessary to create '...
2
votes
1answer
168 views

Importing South African NGI OSM imagery xml file now unsupported by QGIS

Here in South Africa, at our very small company, we often make use of this simple xml file (downloadable from http://aerial.openstreetmap.org.za/aerial-osm-org-za-tiles.xml) to link to this imagery: ...
0
votes
1answer
67 views

How to read info from the CRS? [duplicate]

I'm struggling to understand how the geo projections work in practice. The info a the CRS is as follows: {'ellps': 'WGS84', 'no_defs': True, 'proj': 'longlat'} Does it mean that the coordinates are ...
1
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0answers
426 views

Choosing CRS to use for South Africa that will give map scale in meters in QGIS?

This has been a constant source of frustration for me. I can't seem to always get my map scale in meters in QGIS, even if I use a CRS that has map units of meters, e.g. Alberts Equal Area and others. ...
0
votes
1answer
7k views

Choosing coordinate system to use in South Africa?

What are the principal datums and projections used in South Africa including the names of geodetic datums and their projections?
1
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1answer
365 views

Geocoding South African Addresses in ArcMap?

I have about 8,000 addresses to geocode in South Africa. I haven't been able to find an address locator in ArcMap that works (trying to use the 'world places' address locator in ArcMap 10 gives me a "...
0
votes
1answer
401 views

Finding spatial data on Enumeration Area boundaries from South Africa 2001 Census?

I am trying to locate spatial data for the boundaries of South African Enumeration Areas (EAs) from the 2001 Census. The links to the data from the 2001 census on the Statistics South Africa website ...
1
vote
2answers
148 views

Where/how to find ortophotos

I am very new to Geographic Information Systems. I have a very basic inquery; How do I get hold of the newest ortophoto of South Africa to use as a background map for my GPS data? I'm using QGIS but I ...
2
votes
0answers
423 views

Neighborhood boundaries and building footprints for Johannesburg?

Are there any sources for free (or commercial) and distributable neighborhood and building footprint datasets for Johannesburg out there? I've already looked on: Google OpenStreetMap joburg.org.za ...
6
votes
2answers
2k views

What does coordinate system WG 21° mean?

I have a land survey document for a piece of land, it contains absolute coordinates that I would like to locate on google maps, but I don't know how to correctly interpret the data. What does the "...