Working with Open BIM standards to source data for a 3D Cadastre Jennifer Oldfield

Transcription

1 Working with Open BIM standards to source data for a 3D Cadastre Jennifer Oldfield j.oldfield@gobar.nl

2 BIM FILE IFC GIS OBJECT LADM Based on Master of Science Geographic Information Management Applications (GIMA) thesis Supervised by Professor P.J.M van Oosterom TU Delft (GIS) and Professor Jakob Beetz RWTH Aachen University (BIM)

3 Published in the ISPRS s International Journal of Geographic Information

4 Contents Context Methodology Process Model Model View Definition Use Cases

5 BIM FILE IFC National Context Kadastrale Kaart Opstalrecht & erfdienstbaarheid Dutch open BIM standards: Informatieleveringsspecificatie (ILS), COINS & VISI NL Open BIM standard: Industry Foundation Classes (IFC) Basisregistratie Grootschalige Topografie (BGT) GIS OBJECT LADM International Scope Land Administration Domain Model (LADM) ISO19152 Easements and Right of Superficies bsdd open Standaard: Information Delivery Manual(IDM) ISO bsdd open Standaard: IFC ISO National Topographic Maps worldwide eg Ordnance Survey Britain

6 Standardised BIM Methodology buildingsmart.org

7 which overlaps with GIS Methodology Validation Mapping Extraction function Topological boundary representation objects Use cases Legacy systems

8 Information Delivery Manual (IDM) 30/11/2017

9 Information Delivery Manual (IDM)

10 Mapping between the IFC and LADM: Grouping spatial units

11 Mapping between the IFC and LADM: Geometry

12 Mapping between the IFC and LADM: Using properties to provide a complex 3D ID

13 Use Case 1: 2D Parcels in 3D Legal spaces are different to physical spaces

14 Use Case 1: 2D parcels in a 3D database

15 Code Snippet: 2D Footprint #100=IFCCARTESIANPOINT((0.,0.)); #101=IFCCARTESIANPOINT((100.,0.)); #102=IFCCARTESIANPOINT((120.,300.)); #103=IFCCARTESIANPOINT((-20.,300.)); #104=IFCPOLYLINE((#100,#101,#102,#103,#100)); #105=IFCSHAPEREPRESENTATION(#3,'FootPrint','Curve2D',(#104)); #106=IFCPRODUCTDEFINITIONSHAPE($,$,(#105)); #107=IFCSPACE('1F93ymWGCHvxyww5AXPh_y',#1,'Room 1',$,$,#2,#106,$,.ELEMENT.,.NOTDEFINED.,$);

16 Use Case 2: Complex multi-level use rights Built on pile foundations above water belonging to the municipality Open and semi open areas outdoor terrace and slatted- roof dining area Image and Ifc Data courtesy of UK NBS

17 Use Case 2: the Lakeside Restaurant 41 pile foundations registered Difficult to visualise the building Updating and transferring the deed is a complicated process.

18 Use Case 2: Lakeside Restaurant Original IFC data set courtesty of National Building Specification (NBS) UK

19 Hoofdkantoor Nedeland Gobar adviseurs BV Heereweg CA Lisse Nederland Telefoon: +31 (0) Vestiging Duitsland Gobar adviseurs BV Königsallee 92a 4+5 Etage Düsseldorf Deutschland Telefoon: +49 (0)

20 Evaluation: IDM Workflow Delft Station First 3D cadastre registration in the Netherlands Supplemented the kadastrale kaart Generated from existing (.ifc) files Improved workflow Significant decrease in registration time Conflict prevention: design could be adjusted if necessary Customised topological legal space files for inclusion in a geo database Communicated in the lingua franca of the BIM world Provides legal spaces for topographic map and the cadastral one

21 Methodology

22 Where it began: GIS Methodology Analyse Study other conversion functions Select Use Cases Design Map BIM to LADM Create Data base Schema Implement the mapped data and the conversion and validation function in a prototype environment Test using use cases Evaluate Compare information model and conversion and validation function Repeat and improve

23 Building the Model

24 MODEL Requirements Building Smart Model View Definition (MVD) Achieved Still to achieve Bounded closed topological volume 3D complex ID Different volumes Data checked for validity Geometry - Polyhedron and 3D representations open at the top and/or bottom Topological volumes allow the legal spaces to be connected up together without overlap and the creation of an overview Legal space related to one or more ground parcels with separate unique indices to connect it up with different rights Incorporates traditional parcel columns in addition to volume parcels Geometrically and topologically correct (no non manifold objects, closed volumes) and no overlap but not for how accurately it represents the building this would be left to the owners as in the current system This is how the volumes would be stored in a database Web Server based Location information (co ordinates) This would allow queries to be made from a variety of sources including the organisation itself and individuals Legal spaces positioned both by local co ordinates and the national height datum system on a map rather than referenced to physical markers as in the current Dutch system.

25 How do you fit 3 elephants in a Volkswagen Beetle? BIM GIS

26 Use Case 1: 2D parcels in a 3D database

27 Explanation of the Dutch Kadaster's Map of Legal Spaces Explanation in Dutch Explanation in English 1 Kadastrale gemeente Sectie Perceel the municipality the spatial unit is registered in (Ambt-Doetinchem) and its unique number (711) and section (P) 2 Perceelnummer Unique number repeated (711) Huisnummer House number in red (25) 3 Vastgestelde kadastrale grens Spatial unit boundary which has been measured by the Kadaster and is thus fixed (Henssen 1996). 4 Voorlopige kadastrale grens Spatial unit boundary which has been drawn on the map by an intermediary and which still needs to be measured and fixed. 5 Administratieve kadastrale grens Spatial unit boundary which has been drawn on the map by the Kadaster but which still needs to be measured. Bebouwing Overige topografie Buildings themselves (outlined in red and with red house numbers). Other topographical features (outlined with a narrower black line than the fixed boundaries (3)).

28 Use Case 2: Tapered building Building larger than its footprint CityGML LOD 2 volume automatically generated from aerial photo.ifc format Validation (closed volume) completed by software

29 Scenario 2: Multi level use rights Building (Malietoren) above the Utrechtsebaan (A12) The Hague source: Nemo, Amsterdam and the Evoluon, Eindhoven

30 Land Administration Domain Model (LADM)