Allow holes in polygon, just for fun.

src/main/resources/eu/simstadt/regionchooser/website/script/simstadt_openlayers.js

@@ -377,7 +377,7 @@ const regionChooser = (function(){
 		dataPanel.append("<a href='http://simstadt.hft-stuttgart.de/related-softwares/region-chooser/'>SimStadt documentation</a><br>\n");
 		dataPanel.append("<form id='importWKT' style='position:fixed; bottom:0;'>\n" +
 		"<input id='wktPolygon' type='text' placeholder='WKT Polygon' " +
-		"required pattern=' *POLYGON *\\( *\\([\\-0-9\., ]+\\) *\\) *' " +
+		"required pattern=' *POLYGON *\\( *\\([\\-0-9\., \)\()]+\\) *\\) *' " +
 		"title='Please input a valid WKT Polygon. Example : POLYGON((9.961675 49.807053, 9.951375 49.798521, 9.969486 49.797746, 9.961675 49.807053)) '/>\n" +
 		"<input type='submit' value='Import Polygon'/>\n" +
 		"</form>\n");
@@ -411,6 +411,7 @@ const regionChooser = (function(){
 		var coordinatesCount = feature.getGeometry().getLinearRing(0).getCoordinates().length - 1;
 
 		if (coordinatesCount < 2){
+			console.error("Too few points!");
 			dataPanel.prepend("<h2 class='error'>There should be at least 2 points in WKT polygon</h2><br/>\n");
 			return false;
 		}
@@ -426,6 +427,8 @@ const regionChooser = (function(){
 		displayInfo();
 		draw.setActive(false);
 
+		console.log("Import was succesful!");
+
 		dataPanel.prepend("<h2 class='ok'>WKT Polygon succesfully imported!</h2><br/>");
 
 	}