RegionChooser: Try to import dynamic kml.

src/eu/simstadt/regionchooser/RegionChooserBrowser.java

@@ -6,6 +6,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -59,15 +60,19 @@ public JavaScriptFXBridge() {
 		public String refreshHulls() throws IOException {
 			System.out.println("Look for hulls in " + repo);
 			Path url = Paths.get("just_a_test.kml");
+			String header = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<kml>\n" + "  <Document>\n";
+			String footer = "  </Document>\n" + "</kml>";
 			try (BufferedWriter bw = Files.newBufferedWriter(url)) {
-				bw.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<kml>\n" + "  <Document>\n");
+				bw.write(header);
 				Files.walk(repo)
 						.filter(Files::isRegularFile)
 						.filter(p -> p.toString().contains(".cache") && p.toString().endsWith(".xyz"))
 						.forEach(p -> {
 							System.out.println("Parsing " + p);
-							jsApp.call("addCityGmlHull", p.toString());
 							try {
+								String hullKML = new String(Files.readAllBytes(p), StandardCharsets.UTF_8);
+								System.out.println(hullKML);
+								jsApp.call("addCityGmlHull", header + hullKML + footer);
 								List<String> lines = Files.readAllLines(p);
 								for (String line : lines) {
 									bw.write(line + "\n");
@@ -76,7 +81,7 @@ public String refreshHulls() throws IOException {
 								ex.printStackTrace();
 							}
 						});
-				bw.write("  </Document>\n" + "</kml>");
+				bw.write(footer);
 			} catch (Exception ex) {
 				ex.printStackTrace();
 			}

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

@@ -19,6 +19,7 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 		source: new ol.source.OSM()
 	});
 
+	//NOTE: Use GeoJSON instead?
 	function read_kml(url){
 		return new ol.source.KML({
 			projection : ol.proj.get('EPSG:3857'),
@@ -63,8 +64,13 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 		features : []
 	});
 
-	publicScope.addCityGmlHull = function(p) {
-		dataPanel.append(p + "<br/>\n")
+	publicScope.addCityGmlHull = function(kmlString) {
+		kml_source.addFeature(kmlFormat.readFeature(kmlString,
+				{
+					featureProjection: ol.proj.get('EPSG:3857')
+			}
+		));
+		updateGMLPolygons();
 	};
 	
 	publicScope.addNovaFactoryProduct = function(xmin, ymin, xmax, ymax, name, epsgId) {
@@ -75,14 +81,15 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 			geometry : box,
 			name : name,
 		});
-		feature["geoJSON"] = geoJSONformat.writeFeatureObject(feature);
+		feature["geoJSON"] = geoJsonFormat.writeFeatureObject(feature);
 		feature["area"] = feature.getGeometry().getArea();
 		feature["description"] = "novaFACTORY>" + name;
 		feature["available"] = true;
 		feature["source"] = "NovaFACTORY";
+		
 		novafactory_vectors.addFeature(feature);
 	};
-
+	
 	var novafactory_layer = new ol.layer.Vector({
 		source : novafactory_vectors,
 		style : polygon_style('#ff7700', 0.1)
@@ -96,7 +103,8 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 		})
 	});
 
-	var geoJSONformat = new ol.format.GeoJSON();
+	var geoJsonFormat = new ol.format.GeoJSON();
+	var kmlFormat = new ol.format.KML();
 
 	kml_layer.addEventListener("change", function() {
 		map.getView().fitExtent(kml_source.getExtent(), (map.getSize()));
@@ -104,7 +112,7 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 
 	function updateGMLPolygons() {
 		kml_source.forEachFeature(function(feature) {
-			feature["geoJSON"] = geoJSONformat.writeFeatureObject(feature);
+			feature["geoJSON"] = geoJsonFormat.writeFeatureObject(feature);
 			feature["area"] = feature.getGeometry().getArea();
 			var project = feature.get("project");
 			var name = feature.get("name");
@@ -178,7 +186,7 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 
 	function findIntersections() {
 		var sketch_area = sketch.getGeometry().getArea();
-		var poly1 = geoJSONformat.writeFeatureObject(sketch);
+		var poly1 = geoJsonFormat.writeFeatureObject(sketch);
 		var intersection_found = false;
 		intersections.clear();
 		function findIntersection(feature) {
@@ -189,7 +197,7 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 						dataPanel.append("Intersection found with :<br/>\n");
 						intersection_found = true;
 					}
-					var intersection = geoJSONformat.readFeature(jsonIntersection);
+					var intersection = geoJsonFormat.readFeature(jsonIntersection);
 					var intersectionArea = intersection.getGeometry().getArea();
 					var citygml_percentage = Math.round(intersectionArea / feature["area"] * 100);
 					var sketch_percentage = Math.round(intersectionArea / sketch_area * 100);
@@ -301,10 +309,11 @@ proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.3876388
 	});
 	
 	$('#refresh_hulls').click(function() {
+		kml_source.clear();
 		url = fxapp.refreshHulls();
 		console.log('Loading ' + url);
-		kml_source = read_kml(url);
-		kml_layer.setSource(kml_source);
+		//kml_source = read_kml(url);
+		//kml_layer.setSource(kml_source);
 	});
 
 	novafactory_layer.downloadFinished = function() {