required wkt

src/main/java/eu/simstadt/regionchooser/RegionChooserCommandLineInterface.java

@@ -40,7 +40,7 @@ class RegionChooserCommandLineInterface implements Callable<Integer>
 	boolean localCoordinates;
 
 	@Option(names = { "-w",
-			"--wkt" }, description = "File containing WKT polygon, or - for stdin", paramLabel = "polygon.wkt")
+			"--wkt" }, required = true, description = "File containing WKT polygon, or - for stdin", paramLabel = "polygon.wkt")
 	String wktFile = "-";
 
 	@Override
@@ -85,8 +85,6 @@ public Integer call() throws Exception {
 
 		StringBuilder sb = RegionExtractor.selectRegionDirectlyFromCityGML(wktPolygon, localCRS.toString(), citygmls);
 
-		//TODO: Check how many buildings are written. Warning if 0?
-
 		RegionChooserUtils.writeStringBuilderToFile(sb, outputCityGML);
 
 		return 0;