William Hudspeth wrote:
Hello,
I am trying to copy a GeoTiff to an AAIGrid file using the Python
osgeo-gdal CreateCopy() function. The metadata associated with the
function indicates that one can output a Float32-formatted file, but I
am having trouble figuring out exactly how the output format is
specified in a call to the function....
What I have is:
src_filename='input.tif'
src_ds=gdal.Open(src_filename)
dst_ds_format="AAIGrid"
dst_driver=gdal.GetDriverByName(dst_ds_format)
dst_filename='output.asc'
dst_ds_pm25=dst_driver.CreateCopy(dst_filename,src_ds,0,['Type=Float32'])
The way I have written the output data type argument obviously doesn't
work... Can anyone help me with this?
Bill,
There is no way to make the AAIGRID CreateCopy() produce a floating
point output except to give it a floating point input. Applications like
gdal_translate which supports an '-ot' output type flag accomplish this
by interposing a VRT dataset between the original CreateCopy that takes care
of the pixel type adaption. But this is a hard approach to use in Python.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, [email protected]
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
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