[GRASS-user] Identification of projectiopn?
lester
lester at tyran.co.za
Tue Jul 5 08:03:35 EDT 2011
Hi Rainer
I'm not sure where Keurboom nature reserve is, but South Africa uses
transverse Metacor. So it probablity one of the following projections, just
the +lon_0 changes.
+proj=tmerc +lat_0=0 +lon_0=25.00000000000003 +k=1 +x_0=0 +y_0=0 +ellps=WGS84
+towgs84=0,0,0,0,0,0,0 +units=m +datum=WGS84 +no_defs
+proj=tmerc +lat_0=0 +lon_0=27.00000000000003 +k=1 +x_0=0 +y_0=0 +ellps=WGS84
+towgs84=0,0,0,0,0,0,0 +units=m +datum=WGS84 +no_defs
+proj=tmerc +lat_0=0 +lon_0=29.00000000000003 +k=1 +x_0=0 +y_0=0 +ellps=WGS84
+towgs84=0,0,0,0,0,0,0 +units=m +datum=WGS84 +no_defs
+proj=tmerc +lat_0=0 +lon_0=31.00000000000003 +k=1 +x_0=0 +y_0=0 +ellps=WGS84
+towgs84=0,0,0,0,0,0,0 +units=m +datum=WGS84 +no_defs
Lester
On Tuesday 05 July 2011 12:52:01 Rainer M Krug wrote:
> Hi
>
> I have two shape files of which I do not know the projection (and it seems
> that the person I got them from does not know either...). The maps are from
> the Keurboom nature reserve area in South Africa (
> http://plak.co.za/moreinfo.php?id=347) and the two shp files have the
> folowing bounding boxes:
>
>
> In layer spatial reference system units : xMin,yMin 21340.4,-3755528.75 :
> xMax,yMax 34244.9,-3749187.87
>
> In layer spatial reference system units : xMin,yMin 17001.2,-3754438.15 :
> xMax,yMax 37019.9,-3743929.77
>
>
> I know this is a guessing game, but it must be a common projection - the
> map datum is very likely (almost certainly) WGS84.
>
>
> Any suggestions welcome,
>
>
> Rainer
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