[gdal-dev] ERROR 6: No translation for an empty SRS

[Tommaso]

doing some test I see the error is coming from this line

IGNF.ImportFromProj4("+init=IGNF:LAMB2 +wktext")

so it seems that the string is valid for Linux and not 
for windows.

I can't found a list of possible arguments for ImportFromProj4,
can samebody give me some good link?

Thanks in advance


From: tmassimi at hotmail.com
To: gdal-dev at lists.osgeo.org
Date: Tue, 24 Dec 2013 22:21:37 +0000
Subject: [gdal-dev] ERROR 6: No translation for an empty SRS




Hi all,

to convert some coordinates from Lambert2 Etendu to WGS84.
I wrote the small python script you can see below.

It works fine on linux (gdal-1.9.2-5) but it doesn't work on win32
(GDAL-1.10.1.win32-py2.7.msi and gdal-110-1500-core.msi,downloaded from 
http://vbkto.dyndns.org/sdk/PackageList.aspx?file=release-1500-gdal-1-10-1-mapserver-6-4-0.zip):

C:\import>python test_coord.py
ERROR 6: No translation for an empty SRS to PROJ.4 format is known.
Traceback (most recent call last):
  File "test_coord.py", line 56, in <module>
    point.Transform(coordTrans)
  File "z:\Programmi\python27\lib\site-packages\osgeo\ogr.py", line 4615, in Transform
    return _ogr.Geometry_Transform(self, *args)
TypeError: in method 'Geometry_Transform', argument 2 of type 'OSRCoordinateTransformationShadow *'

env vars are fine:

C:\import>set gd
GDAL_DATA=c:\programmi\gdal\gdal-data
GDAL_DRIVER_PATH=c:\programmi\gdal\gdalplugins

what can I do to let the script working on windows too?

==========

import sys, os

import ogr
import osr

def getCoord(a,b):
  WGS = osr.SpatialReference()
  WGS.ImportFromEPSG(4326)
  IGNF = osr.SpatialReference()
  IGNF.ImportFromProj4("+init=IGNF:LAMBE +wktext")
  coordTrans = osr.CoordinateTransformation(IGNF,WGS)
  point = ogr.Geometry(ogr.wkbPoint)
  point.AddPoint(a,b)
  point.Transform(coordTrans)
  return point.GetX(), point.GetY()


if __name__ == '__main__':
  print getCoord(602262.89743,2670591.7564)
  print "expected Lat=51.028160, Lon=2.368641"
 		 	   		  

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