Perfect, Jeff, thanks very much. I guess something like this is hiding
in the documentation somewhere, but I must have failed to find it.
All the best,
Mat
On 20/01/12 13:10, Jeff Whitaker wrote:
> On 1/20/12 3:12 AM, Mathew Topper wrote:
>> Hi Jeff,
>>
>> Sorry, an XYZ file is simply an ASCII file which can have either
>> LON,LAT,HEIGHT entries or Cartesian X,Y,HEIGHT entries. I think I
>> have confused myself a little here, as all I need to do is print the
>> LON,LAT,HEIGHT data to a file and I've finished, and basemap is not
>> required for this. The original question was whether once a basemap
>> had been defined is there an easy way to extract the Cartesian
>> coordinates to produce an XYZ file containing the Cartesian
>> coordinates for the chosen projection rather than the geographic ones?
>>
>> Thanks
>>
>> Mat
>>
>> PS. This is in all in the context of converting data for use in a
>> software package called MIKE. It sadly lacks the ability to deal with
>> NetCDF files directly.
>
> Mat: If you have the longitudes and latitudes in numpy arrays lons,
> lats, and m is a Basemap instance,
>
> x,y = m(lons,lats)
>
> gives you the projection coordinates.
>
> -Jeff
>>
>> On 19/01/12 16:54, Jeff Whitaker wrote:
>>> On 1/19/12 5:55 AM, Mathew Topper wrote:
>>>> Hi,
>>>>
>>>> I was wondering how hard it would be to generate xyz format files
>>>> from netcdf files using python-netcdf4 and basemap? It seems that
>>>> basemap has the capabilities to do those sort of conversions, but I
>>>> am a bit of a novice to map data and I'm not sure what would be the
>>>> correct approach to this.
>>>>
>>>> Many Thanks
>>>>
>>>> Mat
>>> Mat:
>>>
>>> What's an xyz file?
>>>
>>> -Jeff
>>> --
>>> Jeffrey S. Whitaker Phone : (303)497-6313
>>> Meteorologist FAX : (303)497-6449
>>> NOAA/OAR/PSD R/PSD1 Email : jeffrey.s.whita...@noaa.gov
>>> 325 Broadway Office : Skaggs Research Cntr 1D-113
>>> Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg
>>
>> --
>> Dr. Mathew Topper
>> Institute for Energy Systems
>> School of Engineering
>> The University of Edinburgh
>> Faraday Building
>> The King’s Buildings
>> Edinburgh EH9 3JL
>> Tel: +44 (0)131 650 5570
>> School fax: +44 (0)131 650 6554
>> mathew.top...@ed.ac.uk <mailto:mathew.top...@ed.ac.uk>
>> http://www.see.ed.ac.uk <http://www.see.ed.ac.uk/>
>>
>>
>> The University of Edinburgh is a charitable body, registered in
>> Scotland, with registration number SC005336.
>
--
Dr. Mathew Topper
Institute for Energy Systems
School of Engineering
The University of Edinburgh
Faraday Building
The King’s Buildings
Edinburgh EH9 3JL
Tel: +44 (0)131 650 5570
School fax: +44 (0)131 650 6554
mathew.top...@ed.ac.uk <mailto:mathew.top...@ed.ac.uk>
http://www.see.ed.ac.uk <http://www.see.ed.ac.uk/>
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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