#!/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 4066.5021185685237 2902.460278897484 24.74238038 57.16665808 -gcp 14921.974965977159 1280.8254801001185 24.84925032 57.17999438 -gcp 15937.632010134179 14882.513156533852 24.86671686 57.10810869 -gcp 3940.1967917372012 15177.350406885726 24.75121021 57.1006968 GX10514/GX_10514_SK_frame_429_copy.jpg GX_10514_SK_frame_429_copy.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "3552.0 651.0\n16272.0 359.66683804627246\n17136.0 16247.98766066838\n3696.0 16321.641131105398" | \
  gdaltransform -tps -output_xy GX_10514_SK_frame_429_copy.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  GX_10514_SK_frame_429_copy.vrt GX_10514_SK_frame_429_copy.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES GX_10514_SK_frame_429_copy.cut.vrt GX_10514_SK_frame_429_copy.xyz