CITYGML MODELLING FOR SINGAPORE 3D NATIONAL MAPPING

Establishing a national 3D standard compliant to CityGML: good practice of a national 3D SDI

This article describes a research project that realised a national standard for 3D geo-information. The standard was developed as part of a pilot in which more than 65 private, public and scientific organisations collaborated to analyse and push 3D developments in the Netherlands (run between March 2010 and June 2011). The 3D standard was established through several steps. Firstly a comparison ...

INTEGRATING BIM AND GIS FOR 3D CITY MODELLING The Case of IFC and CityGML

3D geoinformation has become a base for an increasing number of today's applications. Examples of these applications are: city and urban planning, real estate management, environmental simulation, crisis and disaster management, telecommunication, facility management and others. 3D city models are presently scattered over different public and private sectors in different systems, different conc...

CityGML – Interoperable Access to 3D City Models

Virtual 3D city models provide important information for different aspects of disaster management. In this context, up-to-dateness of and flexible access to 3D city models are of utmost importance. Spatial Data Infrastructures (SDI) provide the appropriate framework to cover both aspects, integrating distributed data sources on demand. In this paper we present CityGML, a multi-purpose and multi...

Surface Detail Mapping in 3D Modelling

Generation of Multi-lod 3d City Models in Citygml with the Procedural Modelling Engine Random3dcity

The production and dissemination of semantic 3D city models is rapidly increasing benefiting a growing number of use cases. However, their availability in multiple LODs and in the CityGML format is still problematic in practice. This hinders applications and experiments where multi-LOD datasets are required as input, for instance, to determine the performance of different LODs in a spatial anal...