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Enriching a 3D world with synthetic and visible information about the distribution of points of interest / Mickaël Brasebin (2010)  

Public Titre : Enriching a 3D world with synthetic and visible information about the distribution of points of interest Type de document : Article/Communication Auteurs : Mickaël Brasebin , Auteur ; Bénédicte Bucher , Auteur ; Charlotte Hoarau , Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2010 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 38-4/W15 Conférence : 3D GeoInfo 2010, ISPRS 5th International Conference on 3D GeoInformation 03/11/2010 04/11/2010 Berlin Allemagne OA ISPRS Archives Importance : 4 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] cartographie 3D [Termes IGN] données localisées 3D [Termes IGN] enrichissement sémantique [Termes IGN] monde virtuel [Termes IGN] navigation virtuelle [Termes IGN] point d'intérêt [Termes IGN] variable visuelle [Vedettes matières IGN] Géovisualisation Résumé : (auteur) This article presents a visual variable proposed to help users navigate in a virtual 3D world. This overlay is presented as a disc composed of independent sectors. Each sector conveys information about aggregated data carried from points of interest (POIs). The different parameters of the sectors express different information in a 3D view: the angle the direction of POIs’ group, the color value the density of POIs in this direction and the width of the border their density. This information is quantified the POIs configuration and is updated with users’ navigation. Numéro de notice : C2010-044 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVIII/4-W15/Paper_ISPRS/Oral/5_3DGeoInfo2010 [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=98155

Initial investigations for modeling interior utilities within 3D Geo Context: Transforming IFC- interior utility to CityGML/UtilityNetworkADE / Ihab Hijazi (2010)    

Public Titre : Initial investigations for modeling interior utilities within 3D Geo Context: Transforming IFC- interior utility to CityGML/UtilityNetworkADE Type de document : Article/Communication Auteurs : Ihab Hijazi, Auteur ; Manfred Ehlers, Auteur ; Sisi Zlatanova, Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2010 Collection : Lecture notes in Geoinformation and Cartography, ISSN 1863-2246 Conférence : 3D GeoInfo 2010, ISPRS 5th International Conference on 3D GeoInformation 03/11/2010 04/11/2010 Berlin Allemagne OA ISPRS Archives Importance : 22 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] bâtiment [Termes IGN] carte d'intérieur [Termes IGN] CityGML [Termes IGN] données localisées 3D [Termes IGN] modèle 3D de l'espace urbain [Termes IGN] modélisation 3D du bâti BIM Résumé : (Auteur) 3D City models have so far neglected utility networks in built environments, both interior and exterior. Many urban applications, e.g. emergency response or maintenance operations, are looking for such an integration of interior and exterior utility. Interior utility is usually created and maintained using Building Information Model (BIM) systems, while exterior utility is stored, managed and analyzed using GIS. Researchers have suggested that the best approach for BIM/GIS integration is harmonized semantics, which allow formal mapping between the BIM and real world GIS. This paper provides preliminary ideas and directions for how to acquire information from BIM/Industry Foundation Class (IFC) and map it to CityGML utility network Application Domain Extension (ADE). The investigation points out that, in most cases, there is a direct one-to-one mapping between IFC schema and UtilityNetworkADE schema, and only in one case there is one-to-many mapping; related to logical connectivity since there is no exact concept to represent the case in UtilityNetworkADE. Many examples are shown of partial IFC files and their possible translation in order to be represented in UtilityNetworkADE classes. Numéro de notice : C2010-049 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE/INFORMATIQUE Nature : Communication DOI : 10.1007/978-3-642-12670-3_6 En ligne : https://doi.org/10.1007/978-3-642-12670-3_6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84157

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Modelling three-dimensional geoscientific datasets with the discrete Voronoi diagram / T. Van Der Putte (2010)  

Public Titre : Modelling three-dimensional geoscientific datasets with the discrete Voronoi diagram Type de document : Article/Communication Auteurs : T. Van Der Putte, Auteur ; Hugo Ledoux, Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2010 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 38-4/W15 Conférence : 3D GeoInfo 2010, ISPRS 5th International Conference on 3D GeoInformation 03/11/2010 04/11/2010 Berlin Allemagne OA ISPRS Archives Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] diagramme de Voronoï [Termes IGN] données localisées 3D [Termes IGN] modélisation 3D [Termes IGN] quantité discrète Résumé : (Auteur) Geoscientific datasets are often formed by scattered samples in 3D space having highly anisotropic distribution. To model the continuity of the phenomena they represent (e.g. temperature of a body of water, or percentage of a chemical in the air) raster structures are in most cases used. To overcome the shortcomings of rasters the Voronoi diagram (VD) has been proposed as an alternative. However, while in theory the VD is a sound solution, its use in practice is hindered by the fact that it is complex to construct and to manipulate (removal of samples, interpolation, etc.), and spatial tools have to be built. We propose in this paper a “middle" solution: the 3D discrete Voronoi diagram (DVD). We investigate the properties of the 3D DVD, we propose algorithms to construct and manipulate it, and we demonstrate its use in practice with a prototype that we have built. Our prototype uses existing tools for visualisation and further analysis of DVDs. Numéro de notice : C2010-048 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVIII/4-W15/Paper/3DGeoInfo2010_Ledoux_Voron [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64366