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

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

Jennifer Oldfield

[email protected]

BIM FILE GIS OBJECT IFC 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)

30/11/2017 Gobar Consulting Group

Published in the ISPRS’s International Journal of Geographic Information


Contents

•Context

•Methodology

•Process Model

•Model View Definition

•Use Cases


BIM FILE GIS OBJECT IFC LADM

National Context International Scope

Kadastrale Kaart Land Administration Domain Model (LADM) ISO19152

Opstalrecht & erfdienstbaarheid

Easements and Right of Superficies

Dutch open BIM standards: Informatieleveringsspecificatie (ILS), COINS & VISI

bSDD open Standaard: Information Delivery Manual(IDM) ISO 29481

NL Open BIM standard: Industry Foundation Classes (IFC)

bSDD open Standaard: IFC ISO 16739

Basisregistratie Grootschalige Topografie (BGT)

National Topographic Maps worldwide eg Ordnance Survey Britain


Standardised BIM Methodology…

buildingSmart.org


…which overlaps with GIS Methodology

•Validation

•Mapping

•Extraction function

•Topological boundary representation objects

•Use cases

•Legacy systems


30/11/2017

Information Delivery

Manual (IDM)


Information Delivery

Manual (IDM)

Mapping between the IFC and LADM:


Grouping spatial units


Geometry



Using properties to provide a complex 3D ID


Use Case 1: 2D Parcels in 3D

Legal spaces are different to physical spaces


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


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,$, .ELEMENT.,.NOTDEFINED.,$);


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

Use Case 2: the Lakeside Restaurant

• 41 pile foundations registered

• Difficult to visualise the building

• Updating and transferring the deed is a complicated process.


Use Case 2: Lakeside Restaurant

Original IFC data set courtesty of National Building Specification (NBS) UK


Hoofdkantoor

Nedeland

Gobar adviseurs BV

Heereweg 345

2161 CA Lisse

Nederland

E-Mail: [email protected]

Telefoon: +31 (0)252 422985

Vestiging

Duitsland

Gobar adviseurs BV

Königsallee 92a 4+5 Etage

40212 Düsseldorf

Deutschland

E-Mail: [email protected]

Telefoon: +49 (0)211 54 03 98 26


mailto:[email protected]

mailto:[email protected]

Evaluation: IDM Workflow

Delft Station 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

• First 3D cadastre registration in the Netherlands

• Supplemented the kadastrale kaart

• Generated from existing (.ifc) files

Methodology


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


Building the Model


MODEL Requirements

Achieved

Bounded closed topological volume Topological volumes allow the legal

spaces to be connected up together

without overlap and the creation of an

overview

3D complex ID Legal space related to one or more

ground parcels with separate unique

indices to connect it up with different

rights

Different volumes Incorporates traditional parcel columns

in addition to volume parcels

Data checked for validity 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

Geometry - Polyhedron and 3D

representations open at the top and/or

bottom

This is how the volumes would be

stored in a database

Still to achieve

Web Server based This would allow queries to be made

from a variety of sources including the

organisation itself and individuals

Location information (co ordinates) 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.

Building Smart Model View Definition (MVD)


BIM GIS

How do you fit 3 elephants in a Volkswagen Beetle?


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


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 Buildings themselves (outlined in red and with red house numbers).

Overige topografie Other topographical features (outlined with a narrower black line than the fixed boundaries (3)).


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


Scenario 2: Multi level use rights

Building (Malietoren) above the Utrechtsebaan (A12) The Hague source:www.wegenforum.

Nemo, Amsterdam and the Evoluon, Eindhoven


Land Administration Domain Model (LADM)


Documents

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