Hi, i got a question on using the gdal_grid utility: My input file looks like:
lat,lon,data 24.007521,-114.111420,-0.078077 24.003864,-114.064293,-0.017523 24.000221,-114.017540,-0.069692 23.996593,-113.971153,-0.014572 23.992981,-113.925117,-0.032931 23.989380,-113.879440,-0.068089 23.985794,-113.834114,-0.027493 23.982224,-113.789124,-0.046154 23.978666,-113.744476,-0.073945 23.975121,-113.700165,-0.072757 23.971590,-113.656174,-0.048775 ... 3.034852,-96.767853,0.459120 3.028167,-96.727135,0.649308 3.021430,-96.686111,0.994770 3.014640,-96.644768,1.085215 3.007797,-96.603119,1.350796 3.000899,-96.561142,1.879670 2.993942,-96.518822,1.470742 I use gdal_grid: "C:\software\gdal\gdalwin32-1.6\bin\gdal_grid.exe" -a invdist:power=2.0:smoothing=1.0 -txe 2 24 -tye -117 -92 -outsize 50 50 -of GTiff -ot Float64 -l dust_t1735 dust_t1735.vrt dust_t1735.tiff The tiff file is generated, but when i try to open it, but i cannot open it and the file is somehow corrupted. For the experts on this utility, am i doing something obviously wrong? thanks matt On 8/30/2011 3:04 PM, Even Rouault wrote: > Le mardi 30 août 2011 22:57:34, Matt Funk a écrit : >> On 8/30/2011 1:39 PM, Even Rouault wrote: >>> Le mardi 30 août 2011 21:28:11, Matt Funk a écrit : >>>> Hi, >>>> i have several satellite scenes which basically give me 3 vectors: >>>> lat/lon/data which is on an irregular. I would like to interpolate those >>>> onto a regular grid. I found that GDALGridCreate would meet my need >>>> except that i am developing in python, but it appears the bindings for >>>> it don't exist (unless i am mistaken). >>>> So my question is whether someone knows of an alternative route to >>>> accomplish this or whether i am possible wrong in that i cannot use >>>> GDALGridCreate in python? >>> Yes, you cannot use GDALGridCreate() in python. It has only been mapped >>> to Java bindings for now. You can as a workaround for a process with the >>> gdal_grid utility. >> I have never used the gdal_grid utility. Outside of its manpage >> (http://www.gdal.org/gdal_grid.html) i haven't found any usage examples. > That's already a beginning ;-) > >> As far as inputs are concerned it talks about csv file. Are there other >> input formats. > All OGR supported formats : http://gdal.org/ogr/ogr_formats.html > >> Also, this might be a dumb question, but would it be of any value to >> call the compiled c-gdal library directly from my python code? > Possibly, but someone has to code the missing python swig typemaps however. > >> matt >> >>>> thanks >>>> matt >>>> >>>> _______________________________________________ >>>> gdal-dev mailing list >>>> gdal-dev@lists.osgeo.org >>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev >>> _______________________________________________ >>> gdal-dev mailing list >>> gdal-dev@lists.osgeo.org >>> http://lists.osgeo.org/mailman/listinfo/gdal-dev >> _______________________________________________ >> gdal-dev mailing list >> gdal-dev@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Matt Funk Research Associate Plant and Environmental Scienc. Dept. New Mexico State University _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev