#!/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 1301.7362998261017 1103.9700939188367 23.70231628417969 57.42497867571745 -gcp 7812.280527381428 1181.5155615876863 24.999389648437504 57.415378799551966 -gcp 7871.08840586141 5104.961466317265 25 57 -gcp 2805.000000000946 5127.322775265457 24 57 k_001_kta-3-414_17.jpeg k_001_kta-3-414_17.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1302.0 1096.500754147813\n9093.0 1176.0\n9045.0 7782.0\n1273.5 7733.998491704374" | \
  gdaltransform -tps -output_xy k_001_kta-3-414_17.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414_17.vrt k_001_kta-3-414_17.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_17.cut.vrt k_001_kta-3-414_17.xyz