create missing links to boundary surface and building installation if polygon is linked from solid

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/BoundingBox.java

@@ -18,6 +18,7 @@
  */
 package de.hft.stuttgart.citydoctor2.datastructure;
 
+import java.util.Collection;
 import java.util.List;
 
 import de.hft.stuttgart.citydoctor2.math.Vector3d;
@@ -39,7 +40,7 @@ public class BoundingBox {
 	 * @param polygons containing the points from which the box will be created
 	 * @return the bounding box around all points
 	 */
-	public static BoundingBox of(List<Polygon> polygons) {
+	public static BoundingBox of(Collection<? extends Polygon> polygons) {
 		return BoundingBoxCalculator.calculateBoundingBox(polygons);
 	}
 	

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/mapper/FeatureMapper.java

@@ -150,8 +150,16 @@ public class FeatureMapper extends FeatureWalker {
 				}
 				continue;
 			}
-			LinkedPolygon lPoly = new LinkedPolygon(concPoly, link.getValue1());
-			link.getValue1().addPolygon(lPoly);
+			Geometry geom = link.getValue1();
+			LinkedPolygon lPoly = new LinkedPolygon(concPoly, geom);
+			if (geom.getParent() instanceof BoundarySurface) {
+				BoundarySurface bs = (BoundarySurface) geom.getParent();
+				lPoly.setPartOfSurface(bs);
+				if (bs.getParent() instanceof BuildingInstallation) {
+					lPoly.setPartOfInstallation((BuildingInstallation) bs.getParent());
+				}
+			}
+			geom.addPolygon(lPoly);
 		}
 	}
 

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/utils/BoundingBoxCalculator.java

@@ -18,6 +18,7 @@
  */
 package de.hft.stuttgart.citydoctor2.utils;
 
+import java.util.Collection;
 import java.util.List;
 
 import de.hft.stuttgart.citydoctor2.datastructure.BoundingBox;
@@ -51,7 +52,7 @@ public class BoundingBoxCalculator {
 	 * @param a list of polygons containing the vertices
 	 * @return an BoundingBox containing the two end points of the bounding box.
 	 */
-	public static BoundingBox calculateBoundingBox(List<Polygon> polygons) {
+	public static BoundingBox calculateBoundingBox(Collection<? extends Polygon> polygons) {
 		double lowX = Double.MAX_VALUE;
 		double highX = Double.NEGATIVE_INFINITY;
 		double lowY = Double.MAX_VALUE;