#!/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 5121.0 1980.4519177320733 22 60 -gcp 22656.0 2001.4185658699275 24 60 -gcp 22788.0 19359.94886047804 24 59 -gcp 4764.0 19311.296831573098 22 59 1940_300K_Estland_S60_HANGO_mapywig_COMP.jpg 1940_300K_Estland_S60_HANGO_mapywig_COMP.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1326.0 1935.035019455253\n13935.0 2043.078376876042\n25495.5 1938.0366870483601\n25635.0 10596.015008337965\n25788.0 19284.046692607004\n13791.0 19398.066703724293\n1666.5 19270.495831017233" | \
  gdaltransform -tps -output_xy 1940_300K_Estland_S60_HANGO_mapywig_COMP.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  1940_300K_Estland_S60_HANGO_mapywig_COMP.vrt 1940_300K_Estland_S60_HANGO_mapywig_COMP.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES 1940_300K_Estland_S60_HANGO_mapywig_COMP.cut.vrt 1940_300K_Estland_S60_HANGO_mapywig_COMP.xyz