I'm using gdal_grid to convert a shapefile with points and I would like to set the pixel size of the output. I've only found the -outsize flag that lets me set the size of the output raster, but I would prefer to just say that I want 2 x 2 m pixels and let the tool figure out the size of the output raster.
With gdal_rasterize you can set the -tr flag, but that tool won't do interpolation.
GDAL version <3.2
To set the pixel size in gdal_grid, you have to play with the following options:
-txe xmin xmax:
Set georeferenced X extents of output file to be created.-tye ymin ymax:
Set georeferenced Y extents of output file to be created.-outsize xsize ysize:
Set the size of the output file in pixels and lines.
because:
xcellsize = (xmax - xmin) / xsize
ycellsize = (ymax - ymin) / ysize
New in GDAL version 3.2.
-tr xres yres
Set output file resolution (in target georeferenced units). Note that -tr just works in combination with a valid input from -txe and -tye
