#!/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 2544.0 2442.798777098388 27 57.5 -gcp 7887.0 2082.8304613674263 28 57.5 -gcp 8209.5 7113.516120066704 28 57 -gcp 2853.0 7470.411895497498 27 57 k_001_kta-3-414-29.jpeg k_001_kta-3-414-29.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1873.5 1213.497498610339\n10102.5 1133.2495831017231\n10143.0 7749.750416898278\n1968.0 7830.0" | \
  gdaltransform -tps -output_xy k_001_kta-3-414-29.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414-29.vrt k_001_kta-3-414-29.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES k_001_kta-3-414-29.cut.vrt k_001_kta-3-414-29.xyz