Allow many parameters, via input file

download_files_from_LGL_BW.py

@@ -129,14 +129,27 @@ def extract_region(output_dir: Path, location_name: str, wkt: str) -> None:
     if len(gml_inputs) == 0:
         print("Error: No CityGML found. At least part of the region should be in Baden-Württemberg!")
         return
+
+    params_path = output_dir / 'params.txt'
+    wkt_path = output_dir / 'region.wkt'
+
     print(f"  Extracting {output_file}.")
+    with open(wkt_path, 'w') as f:
+        f.write(wkt)
+
+    with open(params_path, 'w') as f:
+        f.write("--input\n")
+        f.write(','.join(f"{gml}" for gml in gml_inputs))
+        f.write("\n")
+        f.write("--output\n")
+        f.write(f'"{output_file}"\n')
+        f.write("--wkt\n")
+        f.write(f'"{wkt_path}"\n')
+
     result = subprocess.run(['java', '-classpath', f'{region_chooser_libs}',
                              'eu.simstadt.regionchooser.RegionChooserCLI',
-                             '--input', ','.join(str(gml) for gml in gml_inputs),
-                             '--output', str(output_file),
-                             '--wkt', '-',
+                             f'@{params_path}'
                              ],
-                            input=wkt,
                             text=True,
                             capture_output=True,
                             check=True