diff --git a/src/eu/simstadt/regionchooser/RegionExtractor.java b/src/eu/simstadt/regionchooser/RegionExtractor.java
index c753fc94cf5b4a081a8320744cf2b0a6e74b3c60..9c4faf55d3b9214bbf17769a336af645be346d01 100644
--- a/src/eu/simstadt/regionchooser/RegionExtractor.java
+++ b/src/eu/simstadt/regionchooser/RegionExtractor.java
@@ -18,10 +18,15 @@
 {
 	static private WKTReader wktReader = new WKTReader();
 
-	//TODO: Test it
 	static public StringBuffer selectRegionDirectlyFromCityGML(Path citygmlPath, String wktPolygon)
 			throws IOException, ParseException {
 		//			Instant start = Instant.now();
+
+		//TODO: wktPolygon should be in WGS84, and converted here to locate coordinates system
+		//TODO: GetSRSName, either via CityDoctorModel or reading 50 first lines of the citygmlfile
+		//		CityDoctorModel model = CityDoctorModel.loadWithEnergyADEAndNoSchemaValidation(citygmlPath.toFile());
+		//		GeoCoordinatesAccessor coordinates = GeoCoordinatesAccessor.coordinatesComputedFromBuildingsIfNeeded(model);
+		//		System.out.println(coordinates.getCoordinateReferenceSystem().getName());
 		Geometry poly = wktReader.read(wktPolygon);
 		final GeometryFactory gf = new GeometryFactory();
 		//TODO: Don't read all the file. Not possible for 15GB gml files
@@ -29,7 +34,7 @@ static public StringBuffer selectRegionDirectlyFromCityGML(Path citygmlPath, Str
 
 		Pattern cityObjectPattern = Pattern
 				.compile("(?s)<(core:)?cityObjectMember>.*?<\\/(core:)?cityObjectMember>\\s*");
-		//TODO: Allow other coordinate systems
+		//TODO: Allow other coordinate systems. Either use distinc patterns depending on EPSG, or use CityDoctorModel
 		Pattern gsk3CoordinatesPattern = Pattern
 				.compile("(?<![\\d\\.])(3\\d\\d\\d\\d\\d\\d[\\.\\d]*) (5\\d\\d\\d\\d\\d\\d[\\.\\d]*)");
 		Matcher cityObjectMatcher = cityObjectPattern.matcher(s);