[gdal-dev] Re: python script to generate world files

[Matt Wilkie]

 > I don't program but if something goes wrong with ESRI world files it 
is the half
 > a pixel shift sometimes needed because the anchor point in the world 
file is in
 > the middle of the top-left pixel and some other systems have anchor 
point in the
 > top-left corner of the top-left pixel. And the next error is that the 
half a
 > pixel shift is increasing the easting value but decreasing the 
northing value.

thanks for this extra note Jukka.

R Thiede pointed out there is a qgis gdal-tools plugin which tackles the 
same problem. From scanning the commit code it appears to also to some 
things with regard to morphing the projection info from WKT to ESRI 
format. I don't know if that would take into account this possible pixel 
shift or not.
http://linfiniti.com/2011/08/extract-projection-tool-for-qgis/



matt wilkie
--------------------------------------------
Geomatics Analyst
Information Management and Technology
Yukon Department of Environment
10 Burns Road * Whitehorse, Yukon * Y1A 4Y9
867-667-8133 Tel * 867-393-7003 Fax
http://environmentyukon.gov.yk.ca/geomatics/
--------------------------------------------