Re: ESRI SHAPEFILES

The indefatigable Jeff Whittaker has python code to read ESRI shape
files. It is included in his
basemap
(http://matplotlib.sourceforge.net/
matplotlib.toolkits.basemap.basemap.html) toolkit for matplotlib.
The shapefile code is quite independent of the plotting stuff so this
is a path for pyNGL to shape files.

--Jim

On Aug 23, 2006, at 11:48 AM, Rob Cermak wrote:

> Hi Rick,
>
> Addition of the GDAL library to NCL would be good. Support is
> possbily already available for PyNGL users. GDAL has a python
> library that could import shape file information for use in PyNGL.
>
> Has anyone experimented with this?
>
> Some example python code with GDAL may be found here:
> http://www.remotesensing.org/gdal/gdal_tutorial.html
>
> Not helpful for shapefile access. Once you do access the shapes,
> how you would pass them to PyNGL in a meaningful way is yet another
> step.
>
> If the PyNGL team wants to pursue this route, I'd be happy to help
> out where I can since I have the GDAL module and PyNGL operating. I
> can at least generate a test script that reads lines and pass that
> to you for the NCL/NGL part? (Might already have been done)
>
> If there is interest in attempting a GDAL install on your own, I
> have compilation instructions for it.
> https://db.aoos.org/wiki/index.php/AOOS_Systems_Software
>
> Basic ESRI shapefile support is included with gdal. The
> requirements and patches are not required. Those requirements are
> needed for a larger display package and can be ignored.
>
> None of the configuration flags are needed if you don't want to
> include support for HDF, Netcdf, GML(--with-xerces), etc.
>
> Rob
>
> On Tue, August 22, 2006 2:04 pm, Rick Grubin wrote:
>> Hi Stefan,
>>
>>> I wondered if it's possible to read Esri Shapefiles into ncl. I
>>> try to map a region of France in highRes but the NCL geodatabase
>>> doesnit seem to contain world political boundaries in highRes.
>>
>> Currently, NCL does not support the reading of ESRI (or any other
>> GIS) shapefile.
>>
>> The NCL Development Team is considering integrating the Geospatial
>> Data Abstraction Library (GDAL http://www.gdal.org) into NCL to
>> read
>> shapefiles and other georeferenced data.
>>
>> We'd appreciate hearing what users think about this approach, and if
>> there are other possibilities that we might not be considering.
>>
>> -Rick.
>> ----
>> Rick Grubin NCAR/CISL/SCD/VETS
>> Visualization + Enabling Technologies
>> grubin_at_ucar.edu 303.497.1832
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk_at_ucar.edu
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>
>
> --
> Alaska Ocean Observing System
> Database Manager
> 907-474-7948
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk_at_ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>

_______________________________________________
ncl-talk mailing list
ncl-talk_at_ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Wed Aug 23 2006 - 13:24:02 MDT