Hi Frank,
Thanks for the reply.
On 1/26/2011 11:16 PM, Frank Warmerdam wrote:
On 11-01-25 03:09 PM, Fernando Cacciola wrote:
Hello,
I have a geotiff image which, according to its accompaning htm, uses the
WGS_1984 Datum.
However, when I call GDALGetProjectionRef() it fails, returning
"GCS tag not found", plus
ENR_L01.tif (from ENR_L01.zip)
Failed to setup Geographic Coordinate System
FAILED with error: 2
...
What can I do?
Fernando,
It might be helpful to see a listgeo report on the tiff file. Listgeo
is a utility associated with libgeotiff and might already be available on
your system or easily installed.
OK, I have it already so here is the information:
Corner Coordinates:
... unable to transform points between pixel/line and PCS space
Geotiff_Information:
Version: 1
Key_Revision: 1.0
Tagged_Information:
End_Of_Tags.
Keyed_Information:
End_Of_Keys.
End_Of_Geotiff.
I noticed that this dataset is made of 4 files:
enr_p01.aux
enr_p01.tfwx
enr_p01.tif
enr_p01.tif.aux.xml
Oddly, the xml file contains this tag:
<WKT>PROJCS["Pac_chart",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984".....
so it seems like the data is there after all.
I haven't been able to identify where the "GCS tag not found" error message
is coming from. It does not seem to be part of the OGRSpatialReference,
That is the content of the string returned by GDALGetProjectionRef()
Best
--
---
Fernando Cacciola
SciSoft Consulting, Founder
http://www.scisoft-consulting.com
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