[GRASS-user] Datum not recognized by GRASS

[Markus Neteler]

2010/6/30 Paul Kelly <paul-grass at stjohnspoint.co.uk>:
> On Wed, 30 Jun 2010, Anders Gonçalves da Silva wrote:
>
>> Hello all. I am trying to add a GeoTIFF to a project, but I keep getting
>> the following message:
>>
>> --
>> GRASS 6.4.0RC6 (pontal):~/Documents/Academic/Thesis/Archive/Sampling >
>> gdalinfo pontal.TIF
>> Driver: GTiff/GeoTIFF
>> Files: pontal.TIF
>> Size is 4337, 2727
>> Coordinate System is:
>> PROJCS["UTM Zone 23S",
>>  GEOGCS["South_American_1969",
>>      DATUM["South_American_1969",
>
> This seems to be non-standard; the EPSG name should be
> South_American_Datum_1969 and then GRASS would pick it up correctly. Perhaps
> we need to add an exception in lib/proj/convert.c; unfortunately I'm just
> about to head away for a few days and don't have time right now.

I have added it in 6.4, 6.5, 7 in:
lib/proj/convert.c

--- convert.c   (revision 42660)
+++ convert.c   (working copy)
@@ -744,6 +744,8 @@
     "Militar_Geographische_Institut",
     "Potsdam_Datum_83",
     "Deutsches_Hauptdreiecksnetz",
+    "South_American_1969",
+    "South_American_Datum_1969",
     NULL
 };

Markus