#!/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 576.0 1080.0 27.75 57 -gcp 11373.0 1113.0 28 57 -gcp 11382.0 14232.0 28 56.833333333333336 -gcp 531.0 14211.0 27.75 56.833333333333336 mapster/RKKA050_O-35-116-B_Voshki_1932_greif.jpg RKKA050_O-35-116-B_Voshki_1932_greif.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "576.0 1080.0\n11373.0 1113.0\n11382.0 14232.0\n531.0 14211.0" | \
  gdaltransform -tps -output_xy RKKA050_O-35-116-B_Voshki_1932_greif.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  RKKA050_O-35-116-B_Voshki_1932_greif.vrt RKKA050_O-35-116-B_Voshki_1932_greif.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES RKKA050_O-35-116-B_Voshki_1932_greif.cut.vrt RKKA050_O-35-116-B_Voshki_1932_greif.xyz