RegionChooser : Find out which buildings are inside polygon.

.classpath

@@ -12,5 +12,6 @@
 	</classpathentry>
 	<classpathentry kind="lib" path="lib/Proj4J.jar"/>
 	<classpathentry combineaccessrules="false" kind="src" path="/SimStadtRepository"/>
+	<classpathentry kind="lib" path="lib/jts-1.13.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

src/eu/simstadt/regionchooser/RegionChooserFX.java

@@ -3,6 +3,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.util.List;
 import javafx.application.Application;
 import javafx.beans.value.ObservableValue;
 import javafx.concurrent.Worker.State;
@@ -16,7 +17,18 @@
 import javafx.stage.Stage;
 import javax.xml.stream.XMLStreamException;
 import netscape.javascript.JSObject;
+import org.citygml4j.model.gml.feature.BoundingShape;
+import org.citygml4j.model.gml.geometry.primitives.DirectPosition;
+import org.citygml4j.model.gml.geometry.primitives.Envelope;
 import org.xml.sax.SAXParseException;
+import com.vividsolutions.jts.geom.Coordinate;
+import com.vividsolutions.jts.geom.Geometry;
+import com.vividsolutions.jts.geom.GeometryFactory;
+import com.vividsolutions.jts.geom.Point;
+import com.vividsolutions.jts.io.ParseException;
+import com.vividsolutions.jts.io.WKTReader;
+import de.hft.stuttgart.citydoctor.datastructure.Building;
+import eu.simstadt.admin.SimStadtBuilding;
 import eu.simstadt.admin.SimStadtModel;
 import eu.simstadt.admin.SimStadtProject;
 
@@ -45,6 +57,7 @@ class Browser extends Region
 	public class JavaScriptFXBridge
 	{
 		private Path repo;
+		private WKTReader wktReader = new WKTReader();
 
 		public JavaScriptFXBridge() {
 			repo = Paths.get("../TestRepository");
@@ -55,10 +68,32 @@ public void downloadRegion(String wktPolygon) {
 		}
 
 		public int downloadRegionFromCityGML(String wktPolygon, String project, String citygml)
-				throws SAXParseException, XMLStreamException {
+				throws SAXParseException, XMLStreamException, ParseException {
 			//Browser.this.getScene().getRoot().setCursor(Cursor.WAIT);
 			System.out.println("FROM JAVA : DO SOMETHING with " + wktPolygon + " from \n" + project + ">" + citygml);
 			SimStadtModel model = SimStadtProject.loadModelWithoutSchemaValidation(citygmlPath(project, citygml).toFile());
+			Geometry poly = wktReader.read(wktPolygon);
+			final GeometryFactory gf = new GeometryFactory();
+			System.out.println(poly);
+			//TODO: What's the easiest way to get WGS84 coordinates of building center?
+			for (Building building : model.getCityDoctorBuildings()) {
+				BoundingShape boundedBy = building.getCitygmlBuilding().getBoundedBy();
+				if (boundedBy != null) {
+					Envelope envelope = boundedBy.getEnvelope();
+					if (envelope != null) {
+						List<Double> l = envelope.getLowerCorner().getValue();
+						List<Double> h = envelope.getUpperCorner().getValue();
+						double x = (l.get(0) + h.get(0)) * 0.5;
+						double y = (l.get(1) + h.get(1)) * 0.5;
+						Coordinate coord = new Coordinate(x, y);
+						Point point = gf.createPoint(coord);
+						if (point.within(poly)) {
+							System.out.println(building.getGmlId());
+						}
+					}
+				}
+			}
+
 			return model.getCityDoctorBuildings().size();
 		}
 

website/script/simstadt_openlayers.js

@@ -174,6 +174,7 @@ function findIntersections() {
 }
 
 function downloadRegionFromCityGML(i) {
+	//TODO: Disable all links
 	$("html").addClass("wait");
 	var feature = kml_source.getFeatures()[i];
 	// Waiting 100ms in order to let the cursor change
@@ -228,6 +229,7 @@ $('#reset').click(function() {
 		draw.finishDrawing();
 	} finally {
 		$('#dataPanel').empty();
+		$("html").removeClass("wait");
 		featureOverlay.getFeatures().clear();
 		intersections.clear();
 		reset_btn.disabled = true;
@@ -244,7 +246,7 @@ $('#send').click(function() {
 function sketchAsWKT() {
 	var wktFormat = new ol.format.WKT();
 	return wktFormat.writeFeature(sketch, {
-		dataProjection : ol.proj.get('EPSG:4326'),
+		dataProjection : ol.proj.get('EPSG:31467'),
 		featureProjection : ol.proj.get('EPSG:3857')
 	})
 }