#!/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 2989.5 3075.141779788839 25.5 56.5 -gcp 8055.43800066646 2851.6944084041716 26.5 56.5 -gcp 8295.21900033323 7544.565152920035 26.5 56 -gcp 3148.5 7857.211915535445 25.5 56 k_001_kta-3-414_21.jpeg k_001_kta-3-414_21.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1413.0 1083.0\n9079.5 1055.2496229260935\n9111.75 7664.249622926094\n1423.5 7688.249622926094" | \
  gdaltransform -tps -output_xy k_001_kta-3-414_21.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414_21.vrt k_001_kta-3-414_21.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_21.cut.vrt k_001_kta-3-414_21.xyz