#!/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 1974.0 3594.0 26.647333333333332 57.37153333333333 -gcp 43179.0 3660.0 27.87815 57.39706666666667 -gcp 43029.0 32997.0 27.908883333333332 56.924366666666664 -gcp 1896.0 32853.0 26.69558333333333 56.89803333333333 1880_3vers_ru_126k/VTK_Ryad_VIII_List_6_1867.jpg VTK_Ryad_VIII_List_6_1867.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "1931.25 18228.752915047196\n1974.0 3594.0\n22572.0 3614.993337034981\n43179.0 3660.0\n43128.0 18334.50333148251\n43029.0 32997.0\n22467.0 32911.49250416435\n1896.0 32853.0" | \
  gdaltransform -tps -output_xy VTK_Ryad_VIII_List_6_1867.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  VTK_Ryad_VIII_List_6_1867.vrt VTK_Ryad_VIII_List_6_1867.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES VTK_Ryad_VIII_List_6_1867.cut.vrt VTK_Ryad_VIII_List_6_1867.xyz