Ready for public use

.gitignore

@@ -102,3 +102,9 @@ venv.bak/
 
 # mypy
 .mypy_cache/
+
+#mbtile files
+16/
+*.mbtiles
+
+

mbtilesToPngs.py

@@ -0,0 +1,117 @@
+#!/usr/bin/python
+import sqlite3
+from sqlite3 import Error
+import errno
+import os
+import sys
+import getopt
+import time
+
+
+def create_connection(db_file):
+    """ create a database connection to the SQLite database
+        specified by the db_file
+    :param db_file: database file
+    :return: Connection object or None
+    """
+    try:
+        conn = sqlite3.connect(db_file)
+        return conn
+    except Error as e:
+        print(e)
+
+    return None
+
+
+def select_all_images(conn):
+    """
+    Query all rows in the tasks table
+    :param conn: the Connection object
+    :return:
+    """
+    cur = conn.cursor()
+    cur.execute("SELECT * FROM images")
+
+    rows = cur.fetchall()
+
+    print("Image count: " + str(len(rows)))
+    for row in rows:
+        result = get_Metadata(conn, row[1])
+        blobToFile(
+            result['zoom'],
+            result['column'],
+            result['row'],
+            row[0],
+            row[1]
+        )
+
+
+def get_Metadata(conn, id):
+    """
+    Query all rows in the tasks table
+    :param conn: the Connection object
+    :return:
+    """
+    cur = conn.cursor()
+    cur.execute("SELECT * FROM map WHERE tile_id = ?", [id])
+
+    row = cur.fetchone()
+    return({'zoom': str(row[0]), 'column': str(row[1]), 'row': str(row[2])})
+
+
+def mkdir_p(path):
+    try:
+        os.makedirs(path)
+    except OSError as exc:  # Python >2.5
+        if exc.errno == errno.EEXIST and os.path.isdir(path):
+            pass
+        else:
+            raise
+
+
+def blobToFile(dir0, dir1, dir2, ablob, afile):
+    mkdir_p("./" + dir0)  # zoom
+    mkdir_p("./" + dir0 + "/" + dir1)  # column
+    mkdir_p("./" + dir0 + "/" + dir1 + "/" + dir2)  # row
+    filename = "./" + dir0 + "/" + dir1 + "/" + dir2 + "/" + afile + ".png"
+    with open(filename, 'wb') as output_file:
+        output_file.write(ablob)
+
+
+def beginConvertion(database):
+    #database = "./OSMBright.mbtiles"
+
+    # create a database connection
+    conn = create_connection(database)
+    with conn:
+        print("Processing mbtiles..")
+        select_all_images(conn)
+
+
+def main(argv):
+    inputDir = ''
+    try:
+        opts, args = getopt.getopt(argv, "hi:o:", ["ifile="])
+    except getopt.GetoptError:
+        print ('mbtilesToPngs.py -i <path_to_file> (.mbtiles only)')
+        sys.exit(2)
+    for opt, arg in opts:
+        if opt == '-h':
+            print ('mbtilesToPngs.py -i <path_to_file> (.mbtiles only)')
+            sys.exit()
+        elif opt in ("-i", "--ifile"):
+            inputDir = str(arg)
+            if not os.path.isfile(inputDir):
+                print (inputDir, " file not found")
+                sys.exit()
+    if inputDir == '':
+        print ('mbtilesToPngs.py -i <path_to_file> (.mbtiles only)')
+        sys.exit(2)
+    start = time.time()
+    beginConvertion(inputDir)
+    end = time.time()
+    print("Time taken to complete: ", str(round((end - start), 2)), "s")
+
+
+if __name__ == "__main__":
+    main(sys.argv[1:])