initial implementation of Geojson importer

Bug correction overall code quality improvement

city_model_structure/city.py

@@ -80,6 +80,8 @@ class City:
     if self._location is None:
       gps = pyproj.CRS('EPSG:4326')  # LatLon with WGS84 datum used by GPS units and Google Earth
       try:
+        if self._srs_name in GeometryHelper.srs_transformations.keys():
+          self._srs_name = GeometryHelper.srs_transformations[self._srs_name]
         input_reference = pyproj.CRS(self.srs_name)  # Projected coordinate system from input data
       except pyproj.exceptions.CRSError:
         sys.stderr.write('Invalid projection reference system, please check the input data. '

city_model_structure/city_object.py

@@ -47,9 +47,11 @@ class CityObject:
   @property
   def lod(self) -> int:
     """
-    Get city object level of detail 1, 2, 3 or 4
+    Get city object level of detail 0, 1, 2, 3 or 4
     :return: int
     """
+    if self._lod == 0:
+      return self._lod
     lod = int(math.log(self._lod, 2) + 1)
     return lod
 

helpers/geometry_helper.py

@@ -20,6 +20,9 @@ class GeometryHelper:
   """
   Geometry helper class
   """
+  srs_transformations = {
+    'urn:adv:crs:ETRS89_UTM32*DE_DHHN92_NH': 'epsg:25832'
+  }
 
   def __init__(self, delta=0, area_delta=0):
     self._delta = delta

imports/geometry/citygml.py

@@ -21,10 +21,13 @@ class CityGml:
   """
   CityGml class
   """
-  def __init__(self, path):
+  def __init__(self, path,  extrusion_height_field=None, year_of_construction_field=None, function_field=None):
     self._city = None
     self._lod1_tags = ['lod1Solid', 'lod1MultiSurface']
     self._lod2_tags = ['lod2Solid', 'lod2MultiSurface', 'lod2MultiCurve']
+    self._extrusion_height_field = extrusion_height_field
+    self._year_of_construction_field = year_of_construction_field
+    self._function_field = function_field
     self._lower_corner = None
     self._upper_corner = None
     with open(path) as gml:
@@ -77,7 +80,6 @@ class CityGml:
                 continue
               envelope = bound['Envelope']
               self._srs_name = envelope['@srsName']
-              upper_corner = None
               if '#text' in envelope['lowerCorner']:
                 lower_corner = np.fromstring(envelope['lowerCorner']['#text'], dtype=float, sep=' ')
                 upper_corner = np.fromstring(envelope['upperCorner']['#text'], dtype=float, sep=' ')

imports/geometry/citygml_classes/citygml_base.py

@@ -24,18 +24,6 @@ class CityGmlBase(ABC):
     """
     return self._surfaces
 
-  @staticmethod
-  def _remove_last_point(points):
-    array = points.split(' ')
-    res = " "
-    return res.join(array[0:len(array) - 3])
-
-  @staticmethod
-  def _solid_points(coordinates) -> np.ndarray:
-    solid_points = np.fromstring(coordinates, dtype=float, sep=' ')
-    solid_points = GeometryHelper.to_points_matrix(solid_points)
-    return solid_points
-
   @classmethod
   def _solid(cls, city_object_member):
     raise NotImplementedError

imports/geometry/citygml_classes/citygml_lod1.py

@@ -6,6 +6,7 @@ Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 """
 
+from imports.geometry.helpers.geometry_helper import GeometryHelper
 from imports.geometry.citygml_classes.citygml_base import CityGmlBase
 from city_model_structure.building_demand.surface import Surface
 from city_model_structure.attributes.polygon import Polygon
@@ -37,19 +38,20 @@ class CityGmlLod1(CityGmlBase):
   def _solid(cls, city_object_member):
     try:
       solid_points = [
-        CityGmlBase._solid_points(CityGmlBase._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']
+        GeometryHelper.points_from_string(GeometryHelper.remove_last_point_from_string(
-                                                                 ['#text']))
+          s['Polygon']['exterior']['LinearRing']['posList']['#text']))
         for s in city_object_member['lod1Solid']['Solid']['exterior']['CompositeSurface']['surfaceMember']]
     except TypeError:
       solid_points = [
-        CityGmlBase._solid_points(CityGmlBase._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']))
+        GeometryHelper.points_from_string(GeometryHelper.remove_last_point_from_string(
+          s['Polygon']['exterior']['LinearRing']['posList']))
         for s in city_object_member['lod1Solid']['Solid']['exterior']['CompositeSurface']['surfaceMember']]
 
     return [Surface(Polygon(sp), Polygon(sp)) for sp in solid_points]
 
   @classmethod
   def _multi_surface(cls, city_object_member):
-    solid_points = [CityGmlBase._solid_points(CityGmlBase._remove_last_point(s['Polygon']['exterior']['LinearRing']
+    solid_points = [GeometryHelper.points_from_string(GeometryHelper.remove_last_point_from_string(
-                                                                             ['posList']))
+      s['Polygon']['exterior']['LinearRing']['posList']))
                     for s in city_object_member['Building']['lod1MultiSurface']['MultiSurface']['surfaceMember']]
     return [Surface(Polygon(sp), Polygon(sp)) for sp in solid_points]

imports/geometry/citygml_classes/citygml_lod2.py

@@ -60,11 +60,20 @@ class CityGmlLod2(CityGmlBase):
 
   @classmethod
   def _add_member_surface(cls, member, surface_type):
-    if '@srsDimension' in member['Polygon']['exterior']['LinearRing']['posList']:
+    pos_name = 'posList'
+    if pos_name not in member['Polygon']['exterior']['LinearRing']:
+      pos_name = 'pos'
+    if '@srsDimension' in member['Polygon']['exterior']['LinearRing'][pos_name]:
       gml_points = member['Polygon']['exterior']['LinearRing']['posList']["#text"]
     else:
-      gml_points = member['Polygon']['exterior']['LinearRing']['posList']
+      gml_points = member['Polygon']['exterior']['LinearRing'][pos_name]
-    solid_points = cls._solid_points(cls._remove_last_point(gml_points))
+    if pos_name == 'pos':
+      gml_points_string = ''
+      for gml_point in gml_points:
+        gml_points_string = f'{gml_points_string} {gml_point}'
+      gml_points = gml_points_string.lstrip(' ')
+    print(gml_points)
+    solid_points = GeometryHelper.points_from_string(GeometryHelper.remove_last_point_from_string(gml_points))
     polygon = Polygon(solid_points)
     return Surface(polygon, polygon, surface_type=GeometryHelper.gml_surface_to_libs(surface_type))
 

imports/geometry/geojson.py

@@ -5,37 +5,43 @@ Copyright © 2022 Concordia CERC group
 Project Coder Guillermo Gutierrez Guillermo.GutierrezMorote@concordia.ca
 """
 import json
+
 import trimesh.creation
+import numpy as np
+
 from pyproj import Transformer
 from shapely.geometry import Polygon as ShapelyPolygon
+
 import helpers.constants as cte
-from city_model_structure.city import City
+from imports.geometry.helpers.geometry_helper import GeometryHelper
 from city_model_structure.attributes.polygon import Polygon
-from city_model_structure.building_demand.surface import Surface
 from city_model_structure.building import Building
+from city_model_structure.building_demand.surface import Surface
+from city_model_structure.city import City
+
 
 class Geojson:
   """
   Geojson class
   """
+  X = 0
+  Y = 1
 
-  def __init__(self, path, extrusion_height=None, year_of_construction=None, function=None):
+  def __init__(self, path, extrusion_height_field=None, year_of_construction_field=None, function_field=None):
     self._transformer = Transformer.from_crs('epsg:4326', 'epsg:26911')
     self._min_x = cte.MAX_FLOAT
     self._min_y = cte.MAX_FLOAT
     self._max_x = cte.MIN_FLOAT
     self._max_y = cte.MIN_FLOAT
+    self._max_z = 0
     self._city = None
-    self._extrusion_height = 0
+    self._extrusion_height_field = extrusion_height_field
-    if self._extrusion_height is not None:
+    self._year_of_construction_field = year_of_construction_field
-      self._extrusion_height = extrusion_height
+    self._function_field = function_field
-    self._year_of_construction = year_of_construction
-    self._function = function
     with open(path) as json_file:
       self._geojson = json.loads(json_file.read())
 
   def _save_bounds(self, x, y):
-    print(x, y)
     if x > self._max_x:
       self._max_x = x
     if x < self._min_x:
@@ -49,18 +55,20 @@ class Geojson:
   def _create_building_lod0(name, year_of_construction, function, surfaces_coordinates):
     surfaces = []
     for surface_coordinates in surfaces_coordinates:
-      polygon = Polygon(surface_coordinates)
+      points = GeometryHelper.points_from_string(GeometryHelper.remove_last_point_from_string(surface_coordinates))
+      polygon = Polygon(points)
       surfaces.append(Surface(polygon, polygon))
-    Building(name, 0, surfaces, year_of_construction, function)
+    return Building(name, 0, surfaces, year_of_construction, function)
 
   @staticmethod
-  def _create_building_lod1(name, year_of_construction, function, height, surfaces_coordinates):
+  def _create_building_lod1(name, year_of_construction, function, height, surface_coordinates):
+    lod0_building = Geojson._create_building_lod0(name, year_of_construction, function, surface_coordinates)
     surfaces = []
-
+    for surface in lod0_building.surfaces:
-    for surface_coordinates in surfaces_coordinates:
+      shapely_polygon = ShapelyPolygon(surface.solid_polygon.coordinates)
-      shapely_coordinates = [surface_coordinates[n:n + 3] for n in range(0, len(surface_coordinates), 3)]
+      if not shapely_polygon.is_valid:
-      shapely_polygon = ShapelyPolygon(shapely_coordinates)
+        continue
-      mesh = trimesh.creation.extrude_polygon(shapely_polygon,height)
+      mesh = trimesh.creation.extrude_polygon(shapely_polygon, height)
       for face in mesh.faces:
         points = []
         for vertex_index in face:
@@ -68,44 +76,66 @@ class Geojson:
         polygon = Polygon(points)
         surface = Surface(polygon, polygon)
         surfaces.append(surface)
-    Building(name, 1, surfaces, year_of_construction, function)
+    return Building(name, 1, surfaces, year_of_construction, function)
+
+  def _get_polygons(self, polygons, coordinates):
+    if type(coordinates[0][self.X]) != float:
+      polygons = []
+      for element in coordinates:
+        polygons = self._get_polygons(polygons, element)
+      return polygons
+    else:
+      transformed_coordinates = ''
+      for coordinate in coordinates:
+        transformed = self._transformer.transform(coordinate[self.Y], coordinate[self.X])
+        self._save_bounds(transformed[self.X], transformed[self.Y])
+        transformed_coordinates = f'{transformed_coordinates} {transformed[self.X]} {transformed[self.Y]} 0.0'
+      polygons.append(transformed_coordinates.lstrip(' '))
+      return polygons
 
   @property
   def city(self) -> City:
     """
     Get city out of a Geojson file
     """
-
     if self._city is None:
       buildings = []
+      building_id = 0
       for feature in self._geojson['features']:
-        extrusion_height = float(feature['properties'][self._extrusion_height])
+        extrusion_height = 0
-        year_of_construction = int(feature['properties'][self._year_of_construction])
+        if self._extrusion_height_field is not None:
-        function = feature['properties'][self._function]
+          extrusion_height = float(feature['properties'][self._extrusion_height_field])
+        year_of_construction = None
+        if self._year_of_construction_field is not None:
+          year_of_construction = int(feature['properties'][self._year_of_construction_field])
+        function = None
+        if self._function_field is not None:
+          function = feature['properties'][self._function_field]
         geometry = feature['geometry']
+        if 'id' in feature:
           building_name = feature['id']
-        surfaces_coordinates = []
+        else:
-        for coordinates_set in geometry['coordinates']:
+          building_name = f'building_{building_id}'
-          surface_coordinates = []
+          building_id += 1
-          for coordinates in coordinates_set:
+        polygons = []
-            print(coordinates)
+        for coordinates in geometry['coordinates']:
-            if type(coordinates[0]) != float:
+          polygons = self._get_polygons(polygons, coordinates)
-              print(feature)
-            coordinates[0], coordinates[1] = self._transformer.transform(coordinates[0], coordinates[1])
-            self._save_bounds(coordinates[0], coordinates[1])
-            surface_coordinates = surface_coordinates + coordinates + [0.0]
-          surfaces_coordinates.append(surface_coordinates)
-        # todo: create building
         if extrusion_height == 0:
           buildings.append(Geojson._create_building_lod0(building_name,
                                                          year_of_construction,
                                                          function,
-                                                         surfaces_coordinates))
+                                                         polygons))
         else:
+          if self._max_z < extrusion_height:
+            self._max_z = extrusion_height
           buildings.append(Geojson._create_building_lod1(building_name,
                                                          year_of_construction,
                                                          function,
                                                          extrusion_height,
-                                                         surfaces_coordinates))
+                                                         polygons))
+        
+      self._city = City([self._min_x, self._min_y, 0.0], [self._max_x, self._max_y, self._max_z], 'epsg:26911')
+      for building in buildings:
+        self._city.add_city_object(building)
     return self._city
 

imports/geometry/gpandas.py

@@ -59,6 +59,7 @@ class GPandas:
       self._city = City(self._lower_corner, self._upper_corner, self._srs_name)
       for scene_index, bldg in self._scene.iterrows():
         geometry = bldg.geom
+        print(geometry['coordinates'][0])
         polygon = ShapelyPoly(geometry['coordinates'][0])
         height = float(bldg['height'])
         building_mesh = trimesh.creation.extrude_polygon(polygon, height)

imports/geometry/helpers/geometry_helper.py

@@ -6,6 +6,7 @@ Project Coder Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
 """
 
 import helpers.constants as cte
+import numpy as np
 
 
 class GeometryHelper:
@@ -303,3 +304,15 @@ class GeometryHelper:
     if surface == 'GroundSurface':
       return 'Ground'
     return 'Roof'
+
+  @staticmethod
+  def points_from_string(coordinates) -> np.ndarray:
+    points = np.fromstring(coordinates, dtype=float, sep=' ')
+    points = GeometryHelper.to_points_matrix(points)
+    return points
+
+  @staticmethod
+  def remove_last_point_from_string(points):
+    array = points.split(' ')
+    res = " "
+    return res.join(array[0:len(array) - 3])

imports/geometry_factory.py

@@ -19,13 +19,18 @@ class GeometryFactory:
   """
   GeometryFactory class
   """
-  def __init__(self, file_type, path=None, data_frame=None, height=None, year_of_construction=None, function=None):
+  def __init__(self, file_type,
+               path=None,
+               data_frame=None,
+               height_field=None,
+               year_of_construction_field=None,
+               function_field=None):
     self._file_type = '_' + file_type.lower()
     self._path = path
     self._data_frame = data_frame
-    self._height = height
+    self._height_field = height_field
-    self._year_of_construction = year_of_construction
+    self._year_of_construction_field = year_of_construction_field
-    self._function = function
+    self._function_field = function_field
 
   @property
   def _citygml(self) -> City:
@@ -33,7 +38,7 @@ class GeometryFactory:
     Enrich the city by using CityGML information as data source
     :return: City
     """
-    return CityGml(self._path).city
+    return CityGml(self._path, self._height_field, self._year_of_construction_field, self._function_field).city
 
   @property
   def _obj(self) -> City:
@@ -59,7 +64,7 @@ class GeometryFactory:
     Enrich the city by using Geojson information as data source
     :return: City
     """
-    return Geojson(self._path, self._height, self._year_of_construction, self._function).city
+    return Geojson(self._path, self._height_field, self._year_of_construction_field, self._function_field).city
 
   @property
   def _osm_subway(self) -> City:
@@ -91,4 +96,4 @@ class GeometryFactory:
     Enrich the city given to the class using the class given handler
     :return: City
     """
-    return Geojson(self._path, self._height, self._year_of_construction, self._function).city
+    return CityGml(self._path, self._height_field, self._year_of_construction_field, self._function_field).city

unittests/test_geometry_factory.py

@@ -8,9 +8,8 @@ from pathlib import Path
 from unittest import TestCase
 
 from numpy import inf
-from pyproj import Proj, transform
 
-from imports.geometry_factory import GeometryFactory
+import exports.exports_factory
 from imports.construction_factory import ConstructionFactory
 from imports.geometry_factory import GeometryFactory
 
@@ -27,14 +26,15 @@ class TestGeometryFactory(TestCase):
     """
     self._city = None
     self._example_path = (Path(__file__).parent / 'tests_data').resolve()
+    self._output_path = (Path(__file__).parent / 'tests_outputs').resolve()
 
-  def _get_city(self, file, file_type, height=None, year_of_construction=None, function=None):
+  def _get_city(self, file, file_type, height_field=None, year_of_construction_field=None, function_field=None):
     file_path = (self._example_path / file).resolve()
     self._city = GeometryFactory(file_type,
                                  path=file_path,
-                                 height=height,
+                                 height_field=height_field,
-                                 year_of_construction=year_of_construction,
+                                 year_of_construction_field=year_of_construction_field,
-                                 function=function).city
+                                 function_field=function_field).city_debug
     self.assertIsNotNone(self._city, 'city is none')
     return self._city
 
@@ -47,7 +47,6 @@ class TestGeometryFactory(TestCase):
       self.assertIsNotNone(building.detailed_polyhedron, 'building detailed polyhedron is none')
       self.assertIsNotNone(building.simplified_polyhedron, 'building simplified polyhedron is none')
       self.assertIsNotNone(building.surfaces, 'building surfaces is none')
-      self.assertIsNotNone(building.centroid, 'building centroid is none')
       self.assertIsNotNone(building.max_height, 'building max_height is none')
       self.assertEqual(len(building.external_temperature), 0, 'building external temperature is calculated')
       self.assertEqual(len(building.global_horizontal), 0, 'building global horizontal is calculated')
@@ -66,8 +65,6 @@ class TestGeometryFactory(TestCase):
       self.assertIsNone(building.basement_heated, 'building basement_heated is not none')
       self.assertIsNone(building.attic_heated, 'building attic_heated is not none')
       self.assertIsNone(building.terrains, 'building terrains is not none')
-      self.assertIsNotNone(building.year_of_construction, 'building year_of_construction is none')
-      self.assertIsNotNone(building.function, 'building function is none')
       self.assertIsNone(building.average_storey_height, 'building average_storey_height is not none')
       self.assertIsNone(building.storeys_above_ground, 'building storeys_above_ground is not none')
       self.assertEqual(len(building.heating), 0, 'building heating is not none')
@@ -104,8 +101,9 @@ class TestGeometryFactory(TestCase):
     Test city objects in the city
     :return: None
     """
-    file = 'one_building_in_kelowna.gml'
+    file = 'FZK_Haus_LoD_2.gml'
-    city = self._get_city(file, 'citygml')
+    city = self._get_city(file, 'citygml', year_of_construction_field='yearOfConstruction')
+    print(city)
     self.assertTrue(len(city.buildings) == 1)
     self._check_buildings(city)
     for building in city.buildings:
@@ -156,16 +154,14 @@ class TestGeometryFactory(TestCase):
     """
     file = 'concordia.geojson'
     city = self._get_city(file, 'geojson',
-                          height='citygml_me',
+                          height_field='citygml_me',
-                          year_of_construction='ANNEE_CONS',
+                          year_of_construction_field='ANNEE_CONS',
-                          function='LIBELLE_UT')
+                          function_field='LIBELLE_UT')
-    self.assertTrue(len(city.buildings) == 1)
-    self._check_buildings(city)
-
     for building in city.buildings:
-      self._check_surfaces(building)
+      print(building.name, building.volume)
-      self.assertEqual(1912.0898135701814, building.volume)
+    self.assertEqual(166, len(city.buildings), 'wrong number of buildings')
-      self.assertEqual(146.19493345171213, building.floor_area)
+    exports.exports_factory.ExportsFactory('obj', city, self._output_path)
+    self._check_buildings(city)
 
   def test_subway(self):
     """

unittests/tests_data/FZK_Haus_LoD_0.gml

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8"?><!-- Generated by:                                    --><!-- IFC -> cityGML Converter                         --><!-- (C) - Institute for Applied Computer Science     --><!-- Forschungszentrum Karlsruhe                      --><!-- Not for commercial use                           --><!-- Generated by: IfcExplorer--><!-- cityGML Schema: 1.0.0                            --><!-- Level of Detail 1--><!-- Creation Date: Tuesday, 23 November 2010 - 10:37:59--><!-- Edited Manually in Oxygen 8.2 --><!-- Modified by GMLOffset.xslt at Mon Dec 6 2010 --><!-- Version 2 Building located in the area of KIT Campus North)--><!-- Modified by GMLOffset.xslt at Wed Dec 8 2010 --><!-- Modified by GMLOffset.xslt at Wed Mar 29 2017 --><core:CityModel xsi:schemaLocation="http://www.opengis.net/citygml/2.0 http://schemas.opengis.net/citygml/2.0/cityGMLBase.xsd  http://www.opengis.net/citygml/appearance/2.0 http://schemas.opengis.net/citygml/appearance/2.0/appearance.xsd http://www.opengis.net/citygml/building/2.0 http://schemas.opengis.net/citygml/building/2.0/building.xsd http://www.opengis.net/citygml/generics/2.0 http://schemas.opengis.net/citygml/generics/2.0/generics.xsd" xmlns:core="http://www.opengis.net/citygml/2.0" xmlns="http://www.opengis.net/citygml/profiles/base/2.0" xmlns:bldg="http://www.opengis.net/citygml/building/2.0" xmlns:gen="http://www.opengis.net/citygml/generics/2.0" xmlns:grp="http://www.opengis.net/citygml/cityobjectgroup/2.0" xmlns:app="http://www.opengis.net/citygml/appearance/2.0" xmlns:gml="http://www.opengis.net/gml" xmlns:xAL="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <!-- Manually edited by KHH 23.01.2017, Address added, roof edge added -->
+  <gml:name>AC14-FZK-Haus</gml:name>
+  <gml:boundedBy>
+    <gml:Envelope srsDimension="3" srsName="urn:adv:crs:ETRS89_UTM32*DE_DHHN92_NH">
+      <gml:lowerCorner srsDimension="3">457842 5439083 111.8 </gml:lowerCorner>
+      <gml:upperCorner srsDimension="3">457854 5439093 118.317669 </gml:upperCorner>
+    </gml:Envelope>
+  </gml:boundedBy>
+  <core:cityObjectMember>
+    <bldg:Building gml:id="UUID_d281adfc-4901-0f52-540b-4cc1a9325f82">
+      <gml:description>FZK-Haus (Forschungszentrum Karlsruhe, now KIT), created by Karl-Heinz
+        Haefele </gml:description>
+      <gml:name>AC14-FZK-Haus</gml:name>
+      <core:creationDate>2017-01-23</core:creationDate>
+      <core:relativeToTerrain>entirelyAboveTerrain</core:relativeToTerrain>
+      <gen:measureAttribute name="GrossPlannedArea">
+        <gen:value uom="m2">120.00</gen:value>
+      </gen:measureAttribute>
+      <gen:stringAttribute name="ConstructionMethod">
+        <gen:value>New Building</gen:value>
+      </gen:stringAttribute>
+      <gen:stringAttribute name="IsLandmarked">
+        <gen:value>NO</gen:value>
+      </gen:stringAttribute>
+      <bldg:class codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_class.xml">1000</bldg:class>
+      <bldg:function codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_function.xml">1000</bldg:function>
+      <bldg:usage codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_usage.xml">1000</bldg:usage>
+      <bldg:yearOfConstruction>2020</bldg:yearOfConstruction>
+      <bldg:roofType codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_roofType.xml">1030</bldg:roofType>
+      <bldg:measuredHeight uom="m">6.52</bldg:measuredHeight>
+      <bldg:storeysAboveGround>2</bldg:storeysAboveGround>
+      <bldg:storeysBelowGround>0</bldg:storeysBelowGround>
+      <bldg:lod0FootPrint>
+        <gml:MultiSurface>
+          <gml:surfaceMember>
+            <gml:Polygon>
+              <gml:exterior>
+                <gml:LinearRing>
+                  <gml:posList srsDimension="3">457842 5439083 111.8 457842 5439093 111.8 457854 5439093 111.8 457854 5439083 111.8 457842 5439083 111.8 </gml:posList>
+                </gml:LinearRing>
+              </gml:exterior>
+            </gml:Polygon>
+          </gml:surfaceMember>
+        </gml:MultiSurface>
+      </bldg:lod0FootPrint>
+      <bldg:lod0RoofEdge>
+        <gml:MultiSurface>
+          <gml:surfaceMember>
+            <gml:Polygon>
+              <gml:exterior>
+                <gml:LinearRing>
+                  <gml:posList srsDimension="3">457841.5 5439082.5 111.8 457841.5 5439093.5 111.8 457854.5 5439093.5 111.8 457854.5 5439082.5 111.8 457841.5 5439082.5 111.8 </gml:posList>
+                </gml:LinearRing>
+              </gml:exterior>
+            </gml:Polygon>
+          </gml:surfaceMember>
+        </gml:MultiSurface>
+      </bldg:lod0RoofEdge>
+      <bldg:address>
+        <core:Address>
+          <core:xalAddress>
+            <xAL:AddressDetails>
+              <xAL:Locality Type="Town">
+                <xAL:LocalityName>Eggenstein-Leopoldshafen</xAL:LocalityName>
+                <xAL:Thoroughfare Type="Street">
+                  <xAL:ThoroughfareNumber>4711</xAL:ThoroughfareNumber>
+                  <xAL:ThoroughfareName>Spöcker Straße</xAL:ThoroughfareName>
+                </xAL:Thoroughfare>
+                <xAL:PostalCode>
+                  <xAL:PostalCodeNumber>76344</xAL:PostalCodeNumber>
+                </xAL:PostalCode>
+              </xAL:Locality>
+            </xAL:AddressDetails>
+          </core:xalAddress>
+        </core:Address>
+      </bldg:address>
+    </bldg:Building>
+  </core:cityObjectMember>
+</core:CityModel>

unittests/tests_data/FZK_Haus_LoD_1.gml

@@ -0,0 +1,116 @@
+<?xml version="1.0" encoding="utf-8"?><!-- Generated by:                                    --><!-- IFC -> cityGML Converter                         --><!-- (C) - Institute for Applied Computer Science     --><!-- Forschungszentrum Karlsruhe                      --><!-- Not for commercial use                           --><!-- Generated by: IfcExplorer--><!-- cityGML Schema: 1.0.0                            --><!-- Level of Detail 1--><!-- Creation Date: Tuesday, 23 November 2010 - 10:37:59--><!-- Edited Manually in Oxygen 8.2 --><!-- Modified by GMLOffset.xslt at Mon Dec 6 2010 --><!-- Version 2 Building located in the area of KIT Campus North)--><!-- Modified by GMLOffset.xslt at Wed Dec 8 2010 --><!-- Modified by GMLOffset.xslt at Wed Mar 29 2017 --><core:CityModel xsi:schemaLocation="http://www.opengis.net/citygml/2.0 http://schemas.opengis.net/citygml/2.0/cityGMLBase.xsd  http://www.opengis.net/citygml/appearance/2.0 http://schemas.opengis.net/citygml/appearance/2.0/appearance.xsd http://www.opengis.net/citygml/building/2.0 http://schemas.opengis.net/citygml/building/2.0/building.xsd http://www.opengis.net/citygml/generics/2.0 http://schemas.opengis.net/citygml/generics/2.0/generics.xsd" xmlns:core="http://www.opengis.net/citygml/2.0" xmlns="http://www.opengis.net/citygml/profiles/base/2.0" xmlns:bldg="http://www.opengis.net/citygml/building/2.0" xmlns:gen="http://www.opengis.net/citygml/generics/2.0" xmlns:grp="http://www.opengis.net/citygml/cityobjectgroup/2.0" xmlns:app="http://www.opengis.net/citygml/appearance/2.0" xmlns:gml="http://www.opengis.net/gml" xmlns:xAL="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <!-- Manually edited by KHH 23.01.2017, CityGML 2.0, Address added, roof edge added -->
+  <gml:name>AC14-FZK-Haus</gml:name>
+  <gml:boundedBy>
+    <gml:Envelope srsDimension="3" srsName="urn:adv:crs:ETRS89_UTM32*DE_DHHN92_NH">
+      <gml:lowerCorner srsDimension="3">457842 5439083 111.8 </gml:lowerCorner>
+      <gml:upperCorner srsDimension="3">457854 5439093 118.317669 </gml:upperCorner>
+    </gml:Envelope>
+  </gml:boundedBy>
+  <core:cityObjectMember>
+    <bldg:Building gml:id="UUID_d281adfc-4901-0f52-540b-4cc1a9325f82">
+      <gml:description>FZK-Haus (Forschungszentrum Karlsruhe, now KIT), created by Karl-Heinz
+        Haefele </gml:description>
+      <gml:name>AC14-FZK-Haus</gml:name>
+      <core:creationDate>2017-01-23</core:creationDate>
+      <core:relativeToTerrain>entirelyAboveTerrain</core:relativeToTerrain>
+      <gen:measureAttribute name="GrossPlannedArea">
+        <gen:value uom="m2">120.00</gen:value>
+      </gen:measureAttribute>
+      <gen:stringAttribute name="ConstructionMethod">
+        <gen:value>New Building</gen:value>
+      </gen:stringAttribute>
+      <gen:stringAttribute name="IsLandmarked">
+        <gen:value>NO</gen:value>
+      </gen:stringAttribute>
+      <bldg:class codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_class.xml">1000</bldg:class>
+      <bldg:function codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_function.xml">1000</bldg:function>
+      <bldg:usage codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_usage.xml">1000</bldg:usage>
+      <bldg:yearOfConstruction>2020</bldg:yearOfConstruction>
+      <bldg:roofType codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_roofType.xml">1030</bldg:roofType>
+      <bldg:measuredHeight uom="m">6.52</bldg:measuredHeight>
+      <bldg:storeysAboveGround>2</bldg:storeysAboveGround>
+      <bldg:storeysBelowGround>0</bldg:storeysBelowGround>
+      <bldg:lod1Solid>
+        <gml:Solid>
+          <gml:exterior>
+            <gml:CompositeSurface>
+              <gml:surfaceMember>
+                <gml:Polygon>
+                  <gml:exterior>
+                    <gml:LinearRing>
+                      <gml:posList srsDimension="3">457842 5439083 111.8 457842 5439093 111.8 457854 5439093 111.8 457854 5439083 111.8 457842 5439083 111.8 </gml:posList>
+                    </gml:LinearRing>
+                  </gml:exterior>
+                </gml:Polygon>
+              </gml:surfaceMember>
+              <gml:surfaceMember>
+                <gml:Polygon>
+                  <gml:exterior>
+                    <gml:LinearRing>
+                      <gml:posList srsDimension="3">457842 5439083 118.31769 457854 5439083 118.31769 457854 5439093 118.31769 457842 5439093 118.31769 457842 5439083 118.31769 </gml:posList>
+                    </gml:LinearRing>
+                  </gml:exterior>
+                </gml:Polygon>
+              </gml:surfaceMember>
+              <gml:surfaceMember>
+                <gml:Polygon>
+                  <gml:exterior>
+                    <gml:LinearRing>
+                      <gml:posList srsDimension="3">457842 5439083 111.8 457842 5439083 118.31769 457842 5439093 118.31769 457842 5439093 111.8 457842 5439083 111.8 </gml:posList>
+                    </gml:LinearRing>
+                  </gml:exterior>
+                </gml:Polygon>
+              </gml:surfaceMember>
+              <gml:surfaceMember>
+                <gml:Polygon>
+                  <gml:exterior>
+                    <gml:LinearRing>
+                      <gml:posList srsDimension="3">457842 5439093 111.8 457842 5439093 118.31769 457854 5439093 118.31769 457854 5439093 111.8 457842 5439093 111.8 </gml:posList>
+                    </gml:LinearRing>
+                  </gml:exterior>
+                </gml:Polygon>
+              </gml:surfaceMember>
+              <gml:surfaceMember>
+                <gml:Polygon>
+                  <gml:exterior>
+                    <gml:LinearRing>
+                      <gml:posList srsDimension="3">457854 5439093 111.8 457854 5439093 118.31769 457854 5439083 118.31769 457854 5439083 111.8 457854 5439093 111.8 </gml:posList>
+                    </gml:LinearRing>
+                  </gml:exterior>
+                </gml:Polygon>
+              </gml:surfaceMember>
+              <gml:surfaceMember>
+                <gml:Polygon>
+                  <gml:exterior>
+                    <gml:LinearRing>
+                      <gml:posList srsDimension="3">457854 5439083 111.8 457854 5439083 118.31769 457842 5439083 118.31769 457842 5439083 111.8 457854 5439083 111.8 </gml:posList>
+                    </gml:LinearRing>
+                  </gml:exterior>
+                </gml:Polygon>
+              </gml:surfaceMember>
+            </gml:CompositeSurface>
+          </gml:exterior>
+        </gml:Solid>
+      </bldg:lod1Solid>
+      <bldg:address>
+        <core:Address>
+          <core:xalAddress>
+            <xAL:AddressDetails>
+              <xAL:Locality Type="Town">
+                <xAL:LocalityName>Eggenstein-Leopoldshafen</xAL:LocalityName>
+                <xAL:Thoroughfare Type="Street">
+                  <xAL:ThoroughfareNumber>4711</xAL:ThoroughfareNumber>
+                  <xAL:ThoroughfareName>Spöcker Straße</xAL:ThoroughfareName>
+                </xAL:Thoroughfare>
+                <xAL:PostalCode>
+                  <xAL:PostalCodeNumber>76344</xAL:PostalCodeNumber>
+                </xAL:PostalCode>
+              </xAL:Locality>
+            </xAL:AddressDetails>
+          </core:xalAddress>
+        </core:Address>
+      </bldg:address>
+    </bldg:Building>
+  </core:cityObjectMember>
+</core:CityModel>

unittests/tests_data/FZK_Haus_LoD_2.gml

@@ -0,0 +1,240 @@
+<?xml version="1.0" encoding="utf-8"?><!-- IFC to CityGML by IFCExplorer KIT --><!-- CityGML to Sketchup by  Sketchup CityGML Plugin FH GelsenKirchen --><!--CityGML Dataset produced with CityGML Export Plugin for Sketchup by GeoRES --><!--http://www.geores.de --><!-- Edited Manually in Oxygen 8.2 --><!-- Modified by GMLOffset.xslt at Mon Dec 6 2010 --><!-- Version 2 Building located in the area of KIT Campus North)--><!-- Modified by GMLOffset.xslt at Wed Dec 8 2010 --><!-- Modified by GMLOffset.xslt at Wed Mar 29 2017 --><core:CityModel xsi:schemaLocation="http://www.opengis.net/citygml/2.0 http://schemas.opengis.net/citygml/2.0/cityGMLBase.xsd  http://www.opengis.net/citygml/appearance/2.0 http://schemas.opengis.net/citygml/appearance/2.0/appearance.xsd http://www.opengis.net/citygml/building/2.0 http://schemas.opengis.net/citygml/building/2.0/building.xsd http://www.opengis.net/citygml/generics/2.0 http://schemas.opengis.net/citygml/generics/2.0/generics.xsd" xmlns:core="http://www.opengis.net/citygml/2.0" xmlns="http://www.opengis.net/citygml/profiles/base/2.0" xmlns:bldg="http://www.opengis.net/citygml/building/2.0" xmlns:gen="http://www.opengis.net/citygml/generics/2.0" xmlns:grp="http://www.opengis.net/citygml/cityobjectgroup/2.0" xmlns:app="http://www.opengis.net/citygml/appearance/2.0" xmlns:gml="http://www.opengis.net/gml" xmlns:xAL="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <!-- Manually edited by KHH 23.01.2017, CityGML 2.0, Address added, Codespaces added -->
+    <gml:name>AC14-FZK-Haus</gml:name>
+    <gml:boundedBy>
+        <gml:Envelope srsDimension="3" srsName="urn:adv:crs:ETRS89_UTM32*DE_DHHN92_NH">
+            <gml:lowerCorner srsDimension="3">457842 5439083 111.8 </gml:lowerCorner>
+            <gml:upperCorner srsDimension="3">457854 5439093 118.317669 </gml:upperCorner>
+        </gml:Envelope>
+    </gml:boundedBy> 
+    <core:cityObjectMember>
+        <bldg:Building gml:id="UUID_d281adfc-4901-0f52-540b-4cc1a9325f82">
+            <gml:description>FZK-Haus (Forschungszentrum Karlsruhe, now KIT), created by Karl-Heinz
+                Haefele </gml:description>
+            <gml:name>AC14-FZK-Haus</gml:name>
+            <core:creationDate>2017-01-23</core:creationDate>
+            <core:relativeToTerrain>entirelyAboveTerrain</core:relativeToTerrain>
+            <gen:measureAttribute name="GrossPlannedArea">
+                <gen:value uom="m2">120.00</gen:value>
+            </gen:measureAttribute>
+            <gen:stringAttribute name="ConstructionMethod">
+                <gen:value>New Building</gen:value>
+            </gen:stringAttribute>
+            <gen:stringAttribute name="IsLandmarked">
+                <gen:value>NO</gen:value>
+            </gen:stringAttribute>
+            <bldg:class codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_class.xml">1000</bldg:class>
+            <bldg:function codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_function.xml">1000</bldg:function>
+            <bldg:usage codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_usage.xml">1000</bldg:usage>
+            <bldg:yearOfConstruction>2020</bldg:yearOfConstruction>
+            <bldg:roofType codeSpace="http://www.sig3d.org/codelists/citygml/2.0/building/2.0/_AbstractBuilding_roofType.xml">1030</bldg:roofType>
+            <bldg:measuredHeight uom="m">6.52</bldg:measuredHeight>
+            <bldg:storeysAboveGround>2</bldg:storeysAboveGround>
+            <bldg:storeysBelowGround>0</bldg:storeysBelowGround>
+            <bldg:lod2Solid>
+                <gml:Solid>
+                    <gml:exterior>
+                        <gml:CompositeSurface>
+                            <!--Outer Wall 1 (West)  -->
+                            <gml:surfaceMember xlink:href="#PolyID7350_878_759628_120742"> </gml:surfaceMember>
+                            <!--Outer Wall 1 (West)  -->
+                            <!--Outer Wall 2 (South)  -->
+                            <gml:surfaceMember xlink:href="#PolyID7351_1722_416019_316876" />
+                            <!--Outer Wall 2 (South)  -->
+                            <!--Outer Wall 3 (East)  -->
+                            <gml:surfaceMember xlink:href="#PolyID7352_230_209861_355851" />
+                            <!--Outer Wall 3 (East)  -->
+                            <!--Roof 1 (North)  -->
+                            <gml:surfaceMember xlink:href="#PolyID7353_166_774155_320806" />
+                            <!--Roof 1 (North)  -->
+                            <!--Outer Wall 4 (North)  -->
+                            <gml:surfaceMember xlink:href="#PolyID7354_1362_450904_410226" />
+                            <!--Outer Wall 2 (North)  -->
+                            <!--Roof 2 (South)  -->
+                            <gml:surfaceMember xlink:href="#PolyID7355_537_416207_260034" />
+                            <!--Roof 2 (South)  -->
+                            <!--Base Surface  -->
+                            <gml:surfaceMember xlink:href="#PolyID7356_612_880782_415367" />
+                            <!--Base Surface  -->
+                        </gml:CompositeSurface>
+                    </gml:exterior>
+                </gml:Solid>
+            </bldg:lod2Solid>
+            <bldg:boundedBy>
+                <bldg:WallSurface gml:id="GML_5856d7ad-5e34-498a-817b-9544bfbb1475">
+                    <gml:name>Outer Wall 1 (West)</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7350_878_759628_120742">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7350_878_759628_120742_0">
+                                            <gml:pos>457842 5439088 118.317691453624 </gml:pos>
+                                            <gml:pos>457842 5439093 115.430940107676 </gml:pos>
+                                            <gml:pos>457842 5439093 111.8 </gml:pos>
+                                            <gml:pos>457842 5439083 111.8 </gml:pos>
+                                            <gml:pos>457842 5439083 115.430940107676 </gml:pos>
+                                            <gml:pos>457842 5439088 118.317691453624 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:WallSurface>
+            </bldg:boundedBy>
+            <bldg:boundedBy>
+                <bldg:WallSurface gml:id="GML_d38cf762-c29d-4491-88c9-bdc89e141978">
+                    <gml:name>Outer Wall 2 (South)</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7351_1722_416019_316876">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7351_1722_416019_316876_0">
+                                            <gml:pos>457854 5439083 115.430940107676 </gml:pos>
+                                            <gml:pos>457842 5439083 115.430940107676 </gml:pos>
+                                            <gml:pos>457842 5439083 111.8 </gml:pos>
+                                            <gml:pos>457854 5439083 111.8 </gml:pos>
+                                            <gml:pos>457854 5439083 115.430940107676 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:WallSurface>
+            </bldg:boundedBy>
+            <bldg:boundedBy>
+                <bldg:WallSurface gml:id="GML_8e5db638-e46a-4739-a98a-2fc2d39c9069">
+                    <gml:name>Outer Wall 3 (East)</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7352_230_209861_355851">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7352_230_209861_355851_0">
+                                            <gml:pos>457854 5439088 118.317691453624 </gml:pos>
+                                            <gml:pos>457854 5439083 115.430940107676 </gml:pos>
+                                            <gml:pos>457854 5439083 111.8 </gml:pos>
+                                            <gml:pos>457854 5439093 111.8 </gml:pos>
+                                            <gml:pos>457854 5439093 115.430940107676 </gml:pos>
+                                            <gml:pos>457854 5439088 118.317691453624 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:WallSurface>
+            </bldg:boundedBy>
+            <bldg:boundedBy>
+                <bldg:RoofSurface gml:id="GML_875d470b-32b4-4985-a4c8-0f02caa342a2">
+                    <gml:name>Roof 1 (North)</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7353_166_774155_320806">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7353_166_774155_320806_0">
+                                            <gml:pos>457842 5439088 118.317691453624 </gml:pos>
+                                            <gml:pos>457854 5439088 118.317691453624 </gml:pos>
+                                            <gml:pos>457854 5439093 115.430940107676 </gml:pos>
+                                            <gml:pos>457842 5439093 115.430940107676 </gml:pos>
+                                            <gml:pos>457842 5439088 118.317691453624 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:RoofSurface>
+            </bldg:boundedBy>
+            <bldg:boundedBy>
+                <bldg:WallSurface gml:id="GML_0f30f604-e70d-4dfe-ba35-853bc69609cc">
+                    <gml:name>Outer Wall 4 (North)</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7354_1362_450904_410226">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7354_1362_450904_410226_0">
+                                            <gml:pos>457842 5439093 115.430940107676 </gml:pos>
+                                            <gml:pos>457854 5439093 115.430940107676 </gml:pos>
+                                            <gml:pos>457854 5439093 111.8 </gml:pos>
+                                            <gml:pos>457842 5439093 111.8 </gml:pos>
+                                            <gml:pos>457842 5439093 115.430940107676 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:WallSurface>
+            </bldg:boundedBy>
+            <bldg:boundedBy>
+                <bldg:RoofSurface gml:id="GML_eeb6796a-e261-4d3b-a6f2-475940cca80a">
+                    <gml:name>Roof 2 (South)</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7355_537_416207_260034">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7355_537_416207_260034_0">
+                                            <gml:pos>457854 5439083 115.430940107676 </gml:pos>
+                                            <gml:pos>457854 5439088 118.317691453624 </gml:pos>
+                                            <gml:pos>457842 5439088 118.317691453624 </gml:pos>
+                                            <gml:pos>457842 5439083 115.430940107676 </gml:pos>
+                                            <gml:pos>457854 5439083 115.430940107676 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:RoofSurface>
+            </bldg:boundedBy>
+            <bldg:boundedBy>
+                <bldg:GroundSurface gml:id="GML_257a8dde-8194-4ca3-b581-abd591dcd6a3">
+                    <gml:description>Bodenplatte</gml:description>
+                    <gml:name>Base Surface</gml:name>
+                    <bldg:lod2MultiSurface>
+                        <gml:MultiSurface>
+                            <gml:surfaceMember>
+                                <gml:Polygon gml:id="PolyID7356_612_880782_415367">
+                                    <gml:exterior>
+                                        <gml:LinearRing gml:id="PolyID7356_612_880782_415367_0">
+                                            <gml:pos>457854 5439083 111.8 </gml:pos>
+                                            <gml:pos>457842 5439083 111.8 </gml:pos>
+                                            <gml:pos>457842 5439093 111.8 </gml:pos>
+                                            <gml:pos>457854 5439093 111.8 </gml:pos>
+                                            <gml:pos>457854 5439083 111.8 </gml:pos>
+                                        </gml:LinearRing>
+                                    </gml:exterior>
+                                </gml:Polygon>
+                            </gml:surfaceMember>
+                        </gml:MultiSurface>
+                    </bldg:lod2MultiSurface>
+                </bldg:GroundSurface>
+            </bldg:boundedBy>
+            <bldg:address>
+                <core:Address>
+                    <core:xalAddress>
+                        <xAL:AddressDetails>
+                            <xAL:Locality Type="Town">
+                                <xAL:LocalityName>Eggenstein-Leopoldshafen</xAL:LocalityName>
+                                <xAL:Thoroughfare Type="Street">
+                                    <xAL:ThoroughfareNumber>4711</xAL:ThoroughfareNumber>
+                                    <xAL:ThoroughfareName>Spöcker Straße</xAL:ThoroughfareName>
+                                </xAL:Thoroughfare>
+                                <xAL:PostalCode>
+                                    <xAL:PostalCodeNumber>76344</xAL:PostalCodeNumber>
+                                </xAL:PostalCode>
+                            </xAL:Locality>
+                        </xAL:AddressDetails>
+                    </core:xalAddress>
+                </core:Address>
+            </bldg:address>
+        </bldg:Building>
+    </core:cityObjectMember>
+</core:CityModel>