#!/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 1614.0 1080.0 21 57.25 -gcp 9753.0 1068.0 22.5 57.25 -gcp 9816.0 7428.0 22.5 56.61666666666667 -gcp 1578.0 7425.0 21 56.61666666666667 k_001_kta-3-415_31.jpeg k_001_kta-3-415_31.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1614.0 1080.0\n9753.0 1068.0\n9816.0 7428.0\n1578.0 7425.0" | \
  gdaltransform -tps -output_xy k_001_kta-3-415_31.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-415_31.vrt k_001_kta-3-415_31.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES k_001_kta-3-415_31.cut.vrt k_001_kta-3-415_31.xyz