Re: Africa Digest, Vol 31, Issue 6

[Wesley Roberts-3]

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
+no_defs

Regards,
Wesley

Wesley Roberts MSc.
Researcher: Earth Observation
Natural Resources & the Environment (NRE)
CSIR
Tel: [phone]
Fax: [phone]
"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)


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Message: 1
Date: Mon, 20 Jul 2009 13:30:37 +0200
From: "Sives Govender" <[hidden email]>
Subject: Re: [OSGeo Africa] EPSG 205x
To: "'Africa local chapter discussions'" <[hidden email]>
Cc: [hidden email]
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Content-Type: text/plain; charset="iso-8859-1"

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

Sives Govender
Executive Director
EIS-AFRICA

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>>> "Andrew de Klerk" <[hidden email]> 16/07/2009 14:54 >>>

Hi
 
Can anyone confirm what the correct Proj4 definition is for our
Hartebeesthoek projections. The closest I have come up with is (for
2054):
+proj=tmerc +ellips=WGS84 +datum=WGS84 +lon_0=31 +k_0=1 +units=m
+no_defs
 
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
further?
 
Thanks
Andrew
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Message: 2
Date: Mon, 20 Jul 2009 16:05:22 +0300
From: Mick Wilson <[hidden email]>
Subject: [OSGeo Africa] Mick Wilson/UNEP/NBO/UNO is on family leave
To: Africa local chapter discussions <[hidden email]>
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I will be out of the office starting  17/07/2009 and will not return
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22/07/2009.

I am away seeing family and will rarely be checking this mail. If you
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an intelligent reply before I get back then please contact
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