Seems to work with Multipolygon again

download_files_from_LGL_BW.py

@@ -21,10 +21,13 @@ import re
 import urllib.request
 import time
 import zipfile
+import re
 
 from pyproj import CRS
 from pyproj import Transformer
 
+COORDINATES_REGEX = re.compile(r"(\-?\d+\.\d*) (\-?\d+\.\d*)")
+
 ###### User input ##########
 POLYGONS = {
     "StuttgartCenter": "POLYGON((9.175287 48.780916, 9.185501 48.777522, 9.181467 48.773704, 9.174429 48.768472, 9.168807 48.773902, 9.175287 48.780916))",
@@ -133,9 +136,11 @@ def extract_region(output_dir: Path, location_name: str, wkt: str) -> None:
     params_path = output_dir / 'params.txt'
     wkt_path = output_dir / 'region.wkt'
 
+    local_wkt = convert_wkt_to_local(wkt)
+
     print(f"  Extracting {output_file}.")
     with open(wkt_path, 'w') as f:
-        f.write(wkt)
+        f.write(local_wkt)
 
     with open(params_path, 'w') as f:
         f.write("--input\n")
@@ -143,6 +148,7 @@ def extract_region(output_dir: Path, location_name: str, wkt: str) -> None:
         f.write("\n")
         f.write("--output\n")
         f.write(f'"{output_file}"\n')
+        f.write('--local\n')
         f.write("--wkt\n")
         f.write(f'"{wkt_path}"\n')
 
@@ -154,7 +160,6 @@ def extract_region(output_dir: Path, location_name: str, wkt: str) -> None:
                             capture_output=True
                             )
     if (result.stderr):
-        print("\n")
         print(result.stderr)
     if result.returncode != 0:
         raise ValueError(f"RegionChooser failed with code {result.returncode}")
@@ -174,6 +179,14 @@ def main(polygons: dict[str, str]) -> None:
             extract_region(output_dir, location_name, wkt)
         print()
 
+def show_coordinates(match):
+    longitude, latitude = match.groups()
+    transformer = Transformer.from_crs(WGS84, LOCAL_CRS, always_xy=True)
+    x, y = transformer.transform(longitude, latitude)
+    return f"{x} {y}"
+
+def convert_wkt_to_local(wkt):
+    return COORDINATES_REGEX.sub(show_coordinates, wkt)
 
 if __name__ == '__main__':
     main(POLYGONS)