#!/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 510.0 573.6520289049472 27.866666666666667 60 -gcp 13068.0 581.491384102279 28.5 60 -gcp 13287.0 20202.374374652583 28.5 59.5 -gcp 552.0 20208.32768204558 27.866666666666667 59.5 mapster/Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).jpg Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "238.5 569.9983324068928\n6660.0 560.9916620344637\n13068.0 581.491384102279\n13195.5 10404.00667037243\n13287.0 20202.374374652583\n6745.5 20198.996664813785\n212.25 20207.25125069483" | \
  gdaltransform -tps -output_xy Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).vrt Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).cut.vrt Estland-Lettland_100K_15_Narva_NO_1941_(incomplete).xyz