#!/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 0.0 0.0 27.033543010804852 57.6815365525526 -gcp 14340.0 0.0 27.374635467943705 57.68196188537022 -gcp 14340.0 16032.0 27.373777892681456 57.47819857784019 -gcp 0.0 16032.0 27.034501800530094 57.478324690872846 237-Auguri_1923.jpg 237-Auguri_1923.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e \"1815.0 1176.0\n1785.375 14319.752082176568\n12354.75 14316.748750694058\n12330.0 1197.0\" | \
  gdaltransform -tps -output_xy 237-Auguri_1923.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}'))))" \
  237-Auguri_1923.vrt 237-Auguri_1923.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES 237-Auguri_1923.cut.vrt 237-Auguri_1923.xyz