#!/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 1514.25 1128.1446637020567 24.3 58.25 -gcp 5152.5 1122.2234574763759 25 58.25 -gcp 5233.5 7469.060311284047 25 57.61666666666667 -gcp 1492.5 7468.868538076709 24.3 57.61666666666667 k_001_kta-3-415_36.jpeg k_001_kta-3-415_36.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1515.0 1126.5591995553086\n5155.5 1120.4924958310173\n5232.0 7468.487493051696\n1490.25 7470.022512506948" | \
  gdaltransform -tps -output_xy k_001_kta-3-415_36.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  k_001_kta-3-415_36.vrt k_001_kta-3-415_36.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES k_001_kta-3-415_36.cut.vrt k_001_kta-3-415_36.xyz