[gdal-dev] GDAL Python bindings: coordinate transformation does not work

[Howard Butler]

OSGeo4W should have a suitable proj.dll

Please reply to the list so others may benefit from the exchange.

Howard

On Oct 6, 2009, at 2:23 PM, Klaus Noekel wrote:

> Hi Howard,
>
> thanks for checking this so quickly. It still fails on my PC, and  
> the env variable definitely point to the correct location.
>
> However, running in a DOS box I now see the error message
> ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
> OGRCoordinateTransformation failed.
>
> Is there another dependency that I was not aware of? Where would I  
> find a matching PROJ.4 and where do I put it?
>
> Cheers,
> Klaus
>
> Howard Butler schrieb:
>> On Oct 6, 2009, at 2:10 PM, Klaus Noekel wrote:
>>>
>>> Hi,
>>>
>>> I have just installed GDAL 1.6.1.win32-py2.6 on a Win XP system  
>>> and set
>>> up the GDAL directory properly (bin directory in PATH, env variable
>>> points to data).
>>> Scripts for coordinate transformation like that below do not  
>>> crash, but
>>> just seem not to do anything, i.e. the data remain unchanged  
>>> instead of
>>> being reprojected. Can anybody tell me what I am doing wrong?
>>>
>>> The output is
>>> POINT( 776041.000  3386618.000)
>>> POINT (776041 3386618)
>>> where I had expected lat/long instead for point.
>>>
>>> Thanks a lot!
>>> Klaus
>> Klaus,
>> I get the following for output on my OSX box:
>>> POINT( 776041.000  3386618.000)
>>> POINT (-84.121611219545073 30.5802861582041)
>>>
>> I suspect the TransformTo is failing because the GDAL_DATA are not  
>> being found.
>> Howard
>