#!/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 2721.0 1150.475113122172 22.497940063476566 57.42647098295849 -gcp 7827.0 1167.0444947209653 23.5 57.4382976286092 -gcp 7822.5 5196.137254901962 23.5 57 -gcp 2703.0 5136.42383107089 22.5 57 k_001_kta-3-414_14.jpeg k_001_kta-3-414_14.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1026.0 1167.0\n8848.5 1169.9969834087483\n8839.5 7796.995475113122\n1050.0 7778.998491704374" | \
  gdaltransform -tps -output_xy k_001_kta-3-414_14.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-414_14.vrt k_001_kta-3-414_14.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_14.cut.vrt k_001_kta-3-414_14.xyz