> Hi all,
>
> I've to draw a plot in a very small area (about 1 degree of height/width)
> with
> a map image.
> I've tried with the warpimage method and with the Nasa visible Earth
> images
> (http://visibleearth.nasa.gov/view_cat.php?categoryID=1484), but I've some
> problems:
> - with the resolution 21600x10800 the image is still too bad
> - with the resolution 21600x21600 the image is distributed in panels and
>   warpimage method required a whole world image
>
> Merging the 6 panels maybe it can works, but I think my laptop can't
> process a
> so big image.
>
> Any suggestion for cutting the image area before passing it to Basemap?
> Or another kind of images to use?
>
> Thank you very much,
>

I recommend using GDAL (http://gdal.org/) for geospatial stuff. There's
Python bindings, but it'd be easier to just select the area you need from
the input file (using gdal_translate or gdalwarp), and then load the newly
created file for Basemap processing.

A.


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