Thank you Andrew! That did it. Cheers, Sam
On 7/14/16, 11:12 PM, "Andrew C Aitchison" <[email protected]> wrote: >On Fri, 15 Jul 2016, Sam Wilson wrote: > >> Hi, >> >> I¹m attempting to linearly interpolate two geotiff files using >>gdal_calc.py. The geotiff files are 3 hours apart, so for example hour >>0 and hour 3. I¹d like to end up with hourly data, so I need hours 1 >>and 2. >> >> Below are the commands I¹m using: >> >> However, hour1.tif and hour2.tif appear to be the exact same. >> >> Does gdal_calc.py not allow using floating point values in the >>calculation? > >I don't know but imagine that there is a scaling either in the >generation, the comparison or the diplay. > >> Or, am I doing something else wrong? > >Yes. You ned something like: > gdal_calc.py -A hour0.tif -B hour3.tif ‹outfile=hour1.tif >‹calc=³(A*0.667)+(B*0.333)² > gdal_calc.py -A hour0.tif -B hour3.tif ‹outfile=hour2.tif >‹calc=³(A*0.333)+(B*0.667)² > > _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
