#!/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 2484.0 2215.061840120664 25.5 58 -gcp 7422.0 2035.0226244343894 26.5 58 -gcp 7683.855612147718 6720.495428163687 26.5 57.5 -gcp 2685.0 6909.776772247361 25.5 57.5 k_001_kta-3-414_19.jpeg k_001_kta-3-414_19.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1426.5 1127.9984917043741\n9226.5 1149.0015082956259\n9226.5 7737.001508295626\n1435.5 7723.5007541478135" | \
  gdaltransform -tps -output_xy k_001_kta-3-414_19.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414_19.vrt k_001_kta-3-414_19.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_19.cut.vrt k_001_kta-3-414_19.xyz