[gdal-dev] Re: The world is flipped redux

[Roger André]

My apologies to Matt, the flip_raster.py does flip something, as when I
compare the images in OpenEV, I can see that they are reversed.  But when I
compare their corner coords with gdalinfo, they appear identical.

$ gdalinfo test.tif
<snip>
Corner Coordinates:
Upper Left  ( -71.3600000, -23.5000000)
Lower Left  ( -71.3600000,  -8.5000000)
Upper Right ( -55.7000000, -23.5000000)
Lower Right ( -55.7000000,  -8.5000000)

$ gdalinfo bolivia_fullres.tif
<snip>
Corner Coordinates:
Upper Left  ( -71.3600000, -23.5000000)
Lower Left  ( -71.3600000,  -8.5000000)
Upper Right ( -55.7000000, -23.5000000)
Lower Right ( -55.7000000,  -8.5000000)

My head hurts.
--

On Fri, Aug 8, 2008 at 4:24 PM, Roger André <randre at gmail.com> wrote:

> Ok, this is driving me nuts, I can't handle "South is up" anymore.  I have
> NetCDF derived GMT grids which have a flipped y-axis.  This makes for
> georeferencing that looks like this:
> Corner Coordinates:
> Upper Left  ( -90.0000000, -90.0000000)
> Lower Left  ( -90.0000000,   0.0000000)
> Upper Right (   0.0000000, -90.0000000)
> Lower Right (   0.0000000,   0.0000000)
>
> I've seen some old discussions about this, but haven't really found a good
> solution.  I've tried a "flip_raster.py" utility that Matt Perry wrote, but
> it doesn't seem to do anything with my data.  (probably due to my crappy
> data, not Matt's tool) I've also read that there have been some rewrites of
> the NetCDF driver that are supposed to be able to deal with this, but I'm
> not sure about that.
>
> How have others out there dealt with this issue?  I'd like to be able to
> convert the grids into GeoTIFF's and have the TIFF's be "right" side up.
>
> Thanks,
>
> Flipped-off Roger
> --
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/gdal-dev/attachments/20080808/f98a7dff/attachment.html