Re: [gdal-dev] gdallocationinfo.exe multiple access

2015-02-28 Thread Even Rouault
Le samedi 28 février 2015 19:03:21, Yuta Sato a écrit : > Dear Even Rouault: > Thanks for full Python script. I understood this. > > However, since my lons and lats are thousands, it is taking days to extract > the values. So, my question is how can I sped up it. Is it possible to call > several t

Re: [gdal-dev] gdallocationinfo.exe multiple access

2015-02-28 Thread Even Rouault
Le samedi 28 février 2015 18:29:01, Yuta Sato a écrit : > Dear Even Rouault: > > Thanks for you quick response. > Unfortunately, I do not know how to pipe using python script. > I just know to use as follows: > > for x, y in zip(lons, lats): > vals = subprocess.check_output([gdallocationi

Re: [gdal-dev] gdallocationinfo.exe multiple access

2015-02-28 Thread Even Rouault
Le samedi 28 février 2015 17:51:47, Yuta Sato a écrit : > I have a list of longitudes and latitudes for which I extract the pixel > values using gdallocationinfo.exe one by one for each pairs of longitudes > and latitudes using for loop. > > How I simultaneously get pixel values for all the list o

[gdal-dev] gdallocationinfo.exe multiple access

2015-02-28 Thread Yuta Sato
I have a list of longitudes and latitudes for which I extract the pixel values using gdallocationinfo.exe one by one for each pairs of longitudes and latitudes using for loop. How I simultaneously get pixel values for all the list of longitudes and latitudes? My list is large, so I want faster ret

Re: [gdal-dev] Participation in GSoC - 2015

2015-02-28 Thread sandeep kumar
Hi, I am sandeep from IIIT Hyderabad. I am pursuing MS by Research in the field of Spatial Informatics. I have collaborated with gvSIG as part of GSoC - 2013 on the idea "Add Raster Format to Scripting in gvSIG" [1] under the guidance of Joaquin del cerro. I would like to participate in G