#!/bin/bash

GDAL_TILE_PROCESSES=16
GDAL_TILE_ZOOMS=8-14
GDAL_SAMPLING_WARP=cubic
GDAL_SAMPLING_TILE=antialias

# Create virtual dataset with coordinates
gdal_translate -of VRT -a_srs EPSG:4326 -outsize 300% 300% -gcp 1092.0 1329.0 23.126666666666665 57.25 -gcp 10674.0 1269.0 23.576666666666668 57.25 -gcp 10734.0 11094.0 23.576666666666668 57 -gcp 1092.0 11151.0 23.126666666666665 57 Bruno/III-14_Plonen.jpg III-14_Plonen.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1092.0 1329.0\n10674.0 1269.0\n10734.0 11094.0\n1092.0 11151.0" | \
  gdaltransform -tps -output_xy III-14_Plonen.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  III-14_Plonen.vrt III-14_Plonen.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES III-14_Plonen.cut.vrt III-14_Plonen.xyz