#!/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 3576.0 2470.971095052807 22 58 -gcp 9115.5 2484.4060589216233 28 58 -gcp 9258.0 5970.897581989994 28 56 -gcp 2469.0 5910.322679266259 21 56 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 "0.0 0.0\n11463.0 0.0\n11463.0 8691.0\n0.0 8691.0" | \
  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