Results 61 to 70 of about 4,554 (212)

Evaluation of Topological Consistency in CityGML [PDF]

ISPRS International Journal of Geo-Information, 2019
Boundary representation models are data models that represent the topology of a building or city model. This leads to an issue in combination with geometry, as the geometric model necessarily has an underlying topology. In order to allow topological queries to rely on the incidence graph only, a new notion of topological consistency is introduced that ...
Anna Giovanella, Patrick Erik Bradley, Sven Wursthorn   +2 more
openaire   +3 more sources

Mitigating Heat Stress by Reducing Solar Exposure in Pedestrian Routing

Transactions in GIS, Volume 29, Issue 6, September 2025.
ABSTRACT Due to climate change, heat stress is an increasing health risk in cities that requires adaptation measures from both citizens and city planning. This study proposes a routing service to reduce solar exposure for pedestrians and investigates its potential to reduce heat stress from both individual and planning perspectives.
Nikolaos Kolaxidis, Christina Ludwig, Steffen Knoblauch, Johannes Fürle, Kathrin Foshag, Sascha Fendrich, Sven Lautenbach, Alexander Zipf   +7 more
wiley   +1 more source

Multi‐Level Street‐Based Analysis of the Urban Fabric: Developments for a Nationwide Taxonomy

Geographical Analysis, Volume 57, Issue 2, Page 270-301, April 2025.
Multiple fabric assessment (MFA) is a computer‐aided procedure designed for identifying and characterizing urban fabric types (morphotypes) from a street‐based perspective. Nonetheless, the original MFA presents some limitations: it relies on surface‐based descriptors, conceived as proxy variables for the pedestrian perspective in urban form analysis ...
Alessandro Araldi, Giovanni Fusco
wiley   +1 more source

Conceptual Model of Graph-based Individual Tree and Its Utilization in Digital Twin and Metaverse of Urban Forest [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
3D city models are an important cornerstone in the development of digital twin cities, allowing for various analyses and simulations. CityGML, as an open standard for 3D city models, emphasizes five main aspects: scale or level of detail (LoD), semantics,
A. Ambarwari, D. Suwardhi, M. S. Rani, E. Husni, D. W. Junaidy, F. A. Agirachman, A. Murtiyoso, V. C. Griess   +7 more
doaj   +1 more source

Semantic 3D City Database — An enabler for a dynamic geospatial knowledge graph

Energy and AI, 2021
This paper presents a dynamic geospatial knowledge graph as part of The World Avatar project, with an underlying ontology based on CityGML 2.0 for three-dimensional geometrical city objects.
Arkadiusz Chadzynski, Nenad Krdzavac, Feroz Farazi, Mei Qi Lim, Shiying Li, Ayda Grisiute, Pieter Herthogs, Aurel von Richthofen, Stephen Cairns, Markus Kraft   +9 more
doaj   +1 more source

How to pinpoint energy-inefficient Buildings? An Approach based on the 3D City model of Vienna [PDF]

, 2017
This paper describes a methodology to assess the energy performance of residential buildings starting from the semantic 3D city model of Vienna. Space heating, domestic hot water and electricity demand are taken into account.
Agugiaro, G., Faizan Malik, A., Peters-Anders, J., Skarbal, B.   +3 more
core   +3 more sources

A CITYGML EXTENSION FOR HANDLING VERY LARGE TINS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Abstract. 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 ...
Kumar, Kavisha (author), Ledoux, H. (author), Stoter, J.E. (author)   +2 more
openaire   +4 more sources

Enhancing the National Spatial Data Infrastructure to Support 3D Real Estate Valuation: A Case Study of GIS‐Supported Scoring of 3D Residential Units Based on Expert Opinion

Transactions in GIS, Volume 29, Issue 2, April 2025.
ABSTRACT To support property valuation using three‐dimensional (3D) real estate, the present study aims to extend the national spatial data infrastructure (NSDI) with value‐affecting factors such as location characteristics, spatial planning, sociocultural information, and building and dwelling characteristics.
Arif Cagdas Aydinoglu, Rabia Bovkir, Suleyman Sisman, Abdullah Kara   +3 more
wiley   +1 more source

Towards Integrating Heterogeneous Data: A Spatial DBMS Solution from a CRC-LCL Project in Australia

ISPRS International Journal of Geo-Information, 2020
Over recent decades, more and more cities worldwide have created semantic 3D city models of their built environments based on standards across multiple domains.
Wei Li, Sisi Zlatanova, Abdoulaye A. Diakite, Mitko Aleksandrov, Jinjin Yan   +4 more
doaj   +1 more source

Legal Requirement Analysis for 3D Cadastral Database Design

Transactions in GIS, Volume 29, Issue 2, April 2025.
ABSTRACT The growing complexity of modern infrastructures and land ownership necessitates transitioning from 2D to 3D cadastral databases to manage rights, restrictions, and responsibilities (RRRs) effectively. Requirements collection and analysis are critical steps in gathering entities, relationships, and attributes to design a database.
Javad Shahidinejad, Mohsen Kalantari, Abbas Rajabifard   +2 more
wiley   +1 more source