#!/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 5316.0 5856.0 22.750086666666668 57.394983333333336 -gcp 40578.0 5964.0 22.77091666666667 57.394983333333336 -gcp 40572.0 39738.0 22.77091666666667 57.384568333333334 -gcp 5304.0 39624.0 22.750086666666668 57.384568333333334 LVVA_F1679_US217_GV1-4373/LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.JPG LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.vrt

# Add cutline to VRT
gdalwarp -r $GDAL_SAMPLING_WARP -tps -dstalpha -cutline_srs EPSG:4326 \
  -cutline "POLYGON(($(echo -e "5316.0 5856.0\n40578.0 5964.0\n40572.0 39738.0\n5304.0 39624.0" | \
  gdaltransform -tps -output_xy LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.vrt | \
  awk 'NR==1{first=$0} {printf "%s %s,", $1,$2} END{print " " first}')))" \
  LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.vrt LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.cut.vrt

# Generate tiles
gdal2tiles.py -r $GDAL_SAMPLING_TILE --xyz -z $GDAL_TILE_ZOOMS -x --processes=$GDAL_TILE_PROCESSES LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.cut.vrt LVVA-001679-0217-001264-PLANSETE-022-e-7-1_1264.xyz