Results 11 to 20 of about 1,036 (112)

Solar3D: An Open-Source Tool for Estimating Solar Radiation in Urban Environments

open access: yesISPRS International Journal of Geo-Information, 2020
Solar3D is an open-source software application designed to interactively calculate solar irradiation on three-dimensional (3D) surfaces in a virtual environment constructed with combinations of 3D-city models, digital elevation models (DEMs), digital ...
Jianming Liang   +3 more
doaj   +1 more source

APPLYING VERSIONING TO MULTI-LOD 3D CITY MODELS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Level of Detail (LoD) is a well known concept in 3D city models, used to designate different geometric detail that can be used in different applications.
S. Vitalis, K. Arroyo Ohori, J. Stoter
doaj   +1 more source

On the Reliable Generation of 3D City Models from Open Data

open access: yesUrban Science, 2020
A 3D model communicates more effectively than a 2D model, hence the applications of 3D city models are rapidly gaining significance in urban studies. However, presently, there is a dearth of free of cost, high-resolution 3D city models available for use.
Renoy Girindran   +5 more
doaj   +1 more source

URBAN HEAT ISLAND MICRO-MAPPING VIA 3D CITY MODEL [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Urban Heat Island (UHI) phenomenon has been a topic of intense study over the past several years. However, to visualise UHI model is still an issue. Common visualisation of UHI by using digital thematic maps shows that it is hard to perceive its impacts ...
U. Ujang   +4 more
doaj   +1 more source

Requirements, Development, and Evaluation of A National Building Standard—A Swedish Case Study

open access: yesISPRS International Journal of Geo-Information, 2020
The aim of this paper is to present a proposal for a national building standard in Sweden. We define requirements for the proposed standard, e.g., it should support development of 3D city models, connect to building information models (BIM) and national ...
Helen Eriksson   +6 more
doaj   +1 more source

3dfier: automatic reconstruction of 3D city models [PDF]

open access: yesJournal of Open Source Software, 2021
Three-dimensional city models are essential to assess the impact that environmental factors will have on citizens, because they are the input to several simulation and prediction software. Examples of such environmental factors are noise (Stoter et al., 2008), wind (Garcia-Sanchez et al., 2014), air pollution (Ujang et al., 2013), and temperature ...
Hugo Ledoux   +6 more
openaire   +3 more sources

Sharing 3D City Models: An Overview [PDF]

open access: yeseCAADe proceedings, 2009
This study describes the computing methods now available to enable the sharing of three-dimensional (3D) data between various stakeholders for the purposes of city modeling and considers the need for a seamless approach for sharing, transmitting, and maintaining 3D city models.
Thompson, Emine Mine, Horne, Margaret
openaire   +1 more source

A DATA STRUCTURE TO INCORPORATE VERSIONING IN 3D CITY MODELS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
A 3D city model should be constantly updated with new versions, either to reflect the changes in its real-world counterpart, or to improve and correct parts of the model.
S. Vitalis   +4 more
doaj   +1 more source

Building modeling for 3D city model [PDF]

open access: yesGeo-spatial Information Science, 1999
New development in urban planning, cityscape, real estate management and the like, calls for new demands for 3D city model. There are so many objects in 3D city model such as building, river, road, and so on. The building model is very important in 3D city model. In recent years, a lot of research work about visualization has been done. In our opinions,
Yang Bisheng, LI Qingquan, LI Deren
openaire   +1 more source

Generating Orthorectified Multi-Perspective 2.5D Maps to Facilitate Web GIS-Based Visualization and Exploitation of Massive 3D City Models

open access: yesISPRS International Journal of Geo-Information, 2016
2.5D map is a convenient and efficient approach to exploiting a massive three-dimensional (3D) city model in web GIS. With the rapid development of oblique airborne photogrammetry and photo-based 3D reconstruction, 3D city models are becoming more and ...
Jianming Liang   +6 more
doaj   +1 more source

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