#!/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 1290.0 2358.0 21.5 58 -gcp 8757.0 2559.0 23 58 -gcp 8673.0 7209.0 23 57.5 -gcp 1212.0 6996.0 21.5 57.5 k_001_kta-3-414_11.jpeg k_001_kta-3-414_11.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1071.0 1203.0\n1039.5 7793.998334258746\n8841.0 7842.753747917824\n8872.5 1224.0" | \
  gdaltransform -tps -output_xy k_001_kta-3-414_11.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414_11.vrt k_001_kta-3-414_11.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_11.cut.vrt k_001_kta-3-414_11.xyz