#!/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 654.0 1272.0 25.376666666666665 56.75 -gcp 10425.0 1254.0 25.826666666666668 56.75 -gcp 10440.0 11142.0 25.826666666666668 56.5 -gcp 657.0 11148.0 25.376666666666665 56.5 Bruno/V-19_Kokenhusen.jpg V-19_Kokenhusen.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "654.0 1272.0\n10425.0 1254.0\n10440.0 11142.0\n657.0 11148.0" | \
  gdaltransform -tps -output_xy V-19_Kokenhusen.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  V-19_Kokenhusen.vrt V-19_Kokenhusen.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES V-19_Kokenhusen.cut.vrt V-19_Kokenhusen.xyz