Fillnotdata for dtm.tif changed to match dem.tif

dvlp/grid_tile.sh

@@ -324,7 +324,7 @@ if [ ! -f $dtm ]; then
     gdal_calc.py -A roofs_corr.tif -B building_mask.tif -C $dem --calc 'B*A + (B==0)*C' --outfile $dtm
 fi
 
-gdal_fillnodata.py -md 100 $dtm
+gdal_fillnodata.py -md 2000 $dtm
 
 
 # sort unclassified points outside buildings into raster (nodata elsewhere)