#!/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 2748.0 2379.369532428356 24 58 -gcp 7614.0 2343.580693815988 25 58 -gcp 7725.0 7047.603318250378 25 57.5 -gcp 2748.0 7077.541478129714 24 57.5 k_001_kta-3-414_16.jpeg k_001_kta-3-414_16.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1305.0 1173.0\n9102.0 1207.5037707390647\n9037.5 7846.502262443439\n1255.5 7801.5007541478135" | \
  gdaltransform -tps -output_xy k_001_kta-3-414_16.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414_16.vrt k_001_kta-3-414_16.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_16.cut.vrt k_001_kta-3-414_16.xyz