[OSGeo Africa] Re: Africa Digest, Vol 31, Issue 6

Wesley Roberts wroberts at csir.co.za
Wed Jul 22 09:54:15 EDT 2009

Hi Andrew,

I tried this a couple of months ago and R seemed happy with the
definition for both raster and vector data (although I am not 100%
sure). I posted a similar question on the R-sig-geo list and did not get
any replies. I know there are EPSG codes for LO coordinate systems but
they are all for the Hartebeeshoek datum and not WGS84.

Let me know if it works.

+proj=tmerc +south +ellips=WGS84 +datum=WGS84 +lon_o=31 +k_0=1 +units=m


Wesley Roberts MSc.
Researcher: Earth Observation
Natural Resources & the Environment (NRE)
Tel: +27 (0)21 888-2490
Fax: +27 (0)21 888-2693
"To know the road ahead, ask those coming back."
- Chinese proverb

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Today's Topics:

   1. Re: EPSG 205x (Sives Govender)
   2. Mick Wilson/UNEP/NBO/UNO is on family leave (Mick Wilson)


Message: 1
Date: Mon, 20 Jul 2009 13:30:37 +0200
From: "Sives Govender" <SGovender at eis-africa.org>
Subject: Re: [OSGeo Africa] EPSG 205x
To: "'Africa local chapter discussions'" <africa at lists.osgeo.org>
Cc: APARKER at sli.wcape.gov.za 
Message-ID: <4A64717A.B09D.003B.0 at eis-africa.org>
Content-Type: text/plain; charset="iso-8859-1"

HI Aslam,
Sorry for cross-posting but can you help on the request below?

Sives Govender
Executive Director

office tel:   +27 12 349 1068
office fax:  +27 12 349 2080
mobile:     +27 82 929 5034
skype:      sives.govender
alt. email: 
sives.govender at gmail.com 

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>>> "Andrew de Klerk" <andrew at quartex.co.za> 16/07/2009 14:54 >>>

Can anyone confirm what the correct Proj4 definition is for our
Hartebeesthoek projections. The closest I have come up with is (for
+proj=tmerc +ellips=WGS84 +datum=WGS84 +lon_0=31 +k_0=1 +units=m
I have tried on numerous occasions to get someone in the know to say if
its wrong or right. I do not know enough about the inner workings of
projection systems nor the different options available in the proj4
definitions * so if anyone who knows more than me about either of these
can help me/us come up with a definite definition this would help.
Gavin * I know you were looking into this a while ago? Did you get any
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Message: 2
Date: Mon, 20 Jul 2009 16:05:22 +0300
From: Mick Wilson <Mick.Wilson at unep.org>
Subject: [OSGeo Africa] Mick Wilson/UNEP/NBO/UNO is on family leave
To: Africa local chapter discussions <africa at lists.osgeo.org>
	<OFB565C0D9.5CA59915-ON432575F9.0047E763-432575F9.0047E764 at unon.org>
Content-Type: text/plain; charset="us-ascii"

I will be out of the office starting  17/07/2009 and will not return

I am away seeing family and will rarely be checking this mail. If you
an intelligent reply before I get back then please contact
caroline.mureithi at unep.org or, for POW 2010 matters,
johannes.akiwumi at unep.org or norberto.fernandez at unep.org 
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