#!/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 3154.5 2055.4869371873265 24.5 58 -gcp 8454.0 2058.777098387993 25.5 58 -gcp 8529.0 7050.619510839355 25.5 57.5 -gcp 3138.75 7054.685936631462 24.5 57.5 k_001_kta-3-414-24.jpeg k_001_kta-3-414-24.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1758.0 989.9637298499167\n10014.0 1097.916620344636\n9925.5 7729.580878265704\n1688.25 7632.748749305169" | \
  gdaltransform -tps -output_xy k_001_kta-3-414-24.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414-24.vrt k_001_kta-3-414-24.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES k_001_kta-3-414-24.cut.vrt k_001_kta-3-414-24.xyz