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Groneman, A. (author), Zlatanova, S. (author)
The new 3D standard CityGML has been attracting a lot of attention in the last few years. Many characteristics of the XML-based format make it suitable for storage and exchange of virtual 3D city models. It provides possibilities to store semantic and geometric information and has the potential to incorporate topological models. A large number...
conference paper 2009
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Kemec, S. (author), Duzgun, S. (author), Zlatanova, S. (author), Dilmen, D.I. (author), Yalciner, A.C. (author)
Urban 3D visualisation rarely considers integrated data visualisation in disaster management. In general, such methods should incorporate interoperable approaches and data to avoid duplicating efforts and to reduce costs. To achieve such interoperability, it is important to investigate the link between the types of potential hazards and the...
conference paper 2010
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Verbree, E. (author), Stoter, J.E. (author), Zlatanova, S. (author), De Haan, G. (author), Reuvers, M. (author), Vosselman, G. (author), Goos, J. (author), Van Berlo, L. (author), Klooster, R. (author)
This paper presents the work in progress of a research project that aims at establishing a reference model for 3D geo-information in the Netherlands. The research project is initiated by four national organizations: 1) Ministry of Housing, Spatial Planning and the Environment, 2) Kadaster, 3) Geonovum, and 4) the Netherlands Geodetic Commission....
conference paper 2010
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Gózdz, K. (author), Pachelski, W. (author), Van Oosterom, P.J.M. (author), Coors, V. (author)
The main objective of the paper is to elaborate the possibilities of applying CityGML for cadastral purposes, drawing particular attention to the three-dimensional representation of buildings. Technical realization of the issue is executed at the conceptual level by integration the Land Administration Domain Model, officially published as an...
conference paper 2011
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Mobasheri, A. (author), Van Oosterom, P.J.M. (author), Zlatanova, S. (author), Bakillah, M. (author)
Use of relevant geo-information is one of the important issues for performing different tasks and processes in disaster response phase. In order to save time and cost, services could be employed for integrating and extracting relevant up-to-date geo-information. For this purpose, semantics of geo-information should be explicitly defined. This...
conference paper 2013
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Stoter, J.E. (author), Streilein, A. (author), Pla, M. (author), Baella, B. (author), Capstick, D. (author), Home, R. (author), Roensdorf, C. (author), Lagrange, J.P. (author)
Over the past ten years technologies for generating, maintaining and using 3D geo-information have matured. For national mapping agencies one of the challenges is how to best extend 2D data into 3D data, making best use of research results and available technologies. Some mapping organisations are making serious progress. The question addressed...
conference paper 2013
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Buyukaslih, I. (author), Isikdag, U. (author), Zlatanova, S. (author)
3D models of cities, visualised and exploded in 3D virtual environments have been available for several years. Currently a large number of impressive realistic 3D models have been regularly presented at scientific, professional and commercial events. One of the most promising developments is OGC standard CityGML. CityGML is object-oriented model...
conference paper 2013
document
Biljecki, F. (author), Ledoux, H. (author), Stoter, J. (author)
This paper describes the analysis of the propagation of positional uncertainty in 3D city models to the uncertainty in the computation of their volumes. Current work related to error propagation in GIS is limited to 2D data and 2D GIS operations, especially of rasters. In this research we have (1) developed two engines, one that generates random...
conference paper 2014
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Biljecki, F. (author), Ledoux, H. (author), Stoter, J.E. (author)
The geometry of the LOD1 block model of CityGML may be represented in a multitude of valid variants, e.g. it may represent individual buildings or aggregated blocks. The geometric representations within each of these, such as the reference of the footprint of a building, are not standardised in CityGML and are not informed in the metadata. The...
conference paper 2014
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Isikdag, U. (author), Horhammer, M. (author), Zlatanova, S. (author), Kathmann, R. (author), Van Oosterom, P.J.M. (author)
Valuation of real estate/ properties is in many countries/ cities the basis for fair taxation. The value depends on many aspects, including the physical real world aspects (geometries, material of object as build) and legal/virtual aspects (rights, restrictions, responsibilities, zoning/development plans applicable to the objects spaces)....
conference paper 2014
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Biljecki, F. (author), Ledoux, H. (author), Stoter, J.E. (author)
The CityGML standard enables the modelling of some topological relationships, and the representation in multiple levels of detail (LODs). However, both concepts are rarely utilised in reality. In this paper we investigate the linking of corresponding geometric features across multiple representations. We describe the possible topological cases,...
conference paper 2014
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Ates Aydar, S. (author), Stoter, J.E. (author), Ledoux, H. (author), Demir Ozbek, E. (author), Yomraliogly, T (author)
This paper presents the generation of the 3D national building geo-data model of Turkey, which is compatible with the international OGC CityGML Encoding Standard. We prepare an ADE named CityGML-TRKBIS.BI that is produced by extending existing thematic modules of CityGML according to TRKBIS needs. All thematic data groups in TRKBIS geo-data...
conference paper 2016
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Kumar, Kavisha (author), Ledoux, H. (author), Stoter, J.E. (author)
In addition to buildings, the terrain forms an important part of a 3D city model. Although in GIS terrains are usually represented with 2D grids, TINs are also increasingly being used in practice. One example is 3DTOP10NL, the 3D city model covering the whole of the Netherlands, which stores the relief with a constrained TIN containing more than...
conference paper 2016
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Rook, Merwin (author), Biljecki, F. (author), Diakite, A.A. (author)
The lack of semantic information in many 3D city models is a considerable limiting factor in their use, as a lot of applications rely on semantics. Such information is not always available, since it is not collected at all times, it might be lost due to data transformation, or its lack may be caused by non-interoperability in data integration...
conference paper 2016
document
Biljecki, F. (author), Ledoux, H. (author), Stoter, J.E. (author)
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...
conference paper 2016
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Alam, M.N. (author), Coors, V. (author), Zlatanova, S. (author), van Oosterom, P.J.M. (author)
In this paper, an analysis of the effect of the various types of resolution involved in photovoltaic potential computation is presented. To calculate solar energy incident on a surface, shadow from surrounding buildings has been considered. The incident energy on a surface has been calculated taking the orientation, tilt and position into...
conference paper 2016
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Biljecki, F. (author), Ledoux, H. (author), Du, X. (author), Stoter, J.E. (author), Soon, Kean Huat (author), Khoo, Victor (author)
To be used as input in most simulation and modelling software, 3D city models should be geometrically and topologically valid, and semantically rich. We investigate in this paper what is the quality of currently available CityGML datasets, i.e. we validate the geometry/topology of the 3D primitives (Solid and MultiSurface), and we validate...
conference paper 2016
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Löwner, Marc-O (author), Gröger, Gerhard (author), Benner, Joachim (author), Biljecki, F. (author), Nagel, Claus (author)
The Open Geospatial Consortium (OGC) CityGML standard offers a Level of Detail (LoD) concept that enables the representation of CityGML features from a very detailed to a less detailed description. Due to a rising application variety, the current LoD concept seems to be too inflexible. Here, we present a multi representation concept (MRC) that...
conference paper 2016
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Diakite, A.A. (author), Zlatanova, S. (author), Li, Ki-Joune (author)
Boosted by the dynamic urbanization of cities, indoor environments are getting more and more complex in order to be able to host people properly. While most of our time is spent inside buildings, the need of GIS tools to assist our daily activities that can become tedious, such as indoor navigation or facility management, became more and more...
conference paper 2017
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Biljecki, F. (author), Sindram, M. (author)
Building datasets (e.g. footprints in OpenStreetMap and 3D city models) are becoming increasingly available worldwide. However, the thematic (attribute) aspect is not always given attention, as many of such datasets are lacking in completeness of attributes. A prominent attribute of buildings is the year of construction, which is useful for some...
conference paper 2017
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