The world file only contains the coordinates and pixel size information
for a raster file that tell Qgis where to place it on the canvas and how
wide to draw it. This information is in the coordinates of a particular
CRS. The world file does not actually specify the CRS. The CRS is
specified in another file.
e.g. if I have a file called 123.jpg the world file for it will be 123.jgw
The other files (one of which at least specifies the CRS) that the
rasters I download from a particular web site I source a lot of rasters
from) could include:
123.xml
123.jpg.aux.xml
On 3/04/19 7:29 PM, j...@jmcgeo.com wrote:
Hi, first post here. I am migrating an old project to QGIS to see how
it handles my day to day work and have hit a snag.
QGIS doesn’t seem to recognise my world files. Generally these follow
the following filename convention:
XXX.jpg -à XXX.jgw
XXX.tif -à XXX.tfw
I have tried creating a file XXX.wld and the georeferencing tool
cautions me that it is there and overwrites it, but when I put the old
data back in it, it still pays no attention. The XXX.yzW files were
created in the ArcGIS georeferencing tool and work fine in ArcGIS and
Mapinfo.
Thanks in advance.
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