add: script to convert gpkg to pmtiles

scripts/generate_pmtiles.sh

@@ -0,0 +1,30 @@
+# generate_pmtiles
+# Converts a GeoPackage file to PMTiles
+# Output PMTiles file can be checked here: https://pmtiles.io/
+# Arguments:
+#   $1: Path to input GeoPackage file
+#   $2: Path to output PMTiles file
+#   $3: Minimum zoom level (e.g. 9)
+#   $4: Maximum zoom level (e.g. 15, larger than 15 is not recommended)
+#   $5: Run in Docker container (YES/NO, default: NO)
+#   $6: Path to data directory (default: $PWD)
+# Usage: generate_pmtiles /path/to/input.gpkg /path/to/output.pmtiles 12 15 YES /path/to/data
+generate_pmtiles () {
+    local input=$1
+    local output=$2
+    local minzoom=$3
+    local maxzoom=$4
+    local docker=${5:-NO}
+    local datadir=${6:-$PWD}
+
+    if [ "$docker" = "YES" ]
+    then
+        # Run ogr2ogr in a Docker container
+        echo "Running generate_pmtiles in a Docker container"
+        docker run --rm -v $PWD:/data osgeo/gdal:alpine-ultrasmall-latest \
+            ogr2ogr -skipfailures -f PMTiles "/data/$output" "/data/$input" -dsco MAXZOOM="$maxzoom" -dsco MINZOOM="$minzoom"
+    else
+        # Run ogr2ogr directly
+        ogr2ogr -skipfailures -f PMTiles "$output" "$input" -dsco MAXZOOM="$maxzoom" -dsco MINZOOM="$minzoom"
+    fi
+}