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Continuously generalizing buildings to built-up areas by aggregating and growing / Dongliang Peng (2017)  

Public Titre : Continuously generalizing buildings to built-up areas by aggregating and growing Type de document : Article/Communication Auteurs : Dongliang Peng, Auteur ; Guillaume Touya , Auteur Editeur : New York [Etats-Unis] : Association for computing machinery ACM Année de publication : 2017 Conférence : UrbanGIS 2017, 3rd ACM SIGSPATIAL workshop 07/11/2017 10/11/2017 Redondo Beach Californie - Etats-Unis Proceedings ACM Langues : Anglais (eng) Descripteur : [Termes IGN] bati [Termes IGN] construction [Termes IGN] distance euclidienne [Termes IGN] mise à l'échelle [Termes IGN] polygone [Termes IGN] simplification de contour [Vedettes matières IGN] Généralisation Résumé : (auteur) To enable smooth zooming, we propose a method to continuously generalize buildings from a given start map to a smaller-scale goal map, where there are only built-up area polygons instead of individual building polygons. We name the buildings on the start map original buildings. For an intermediate scale, we aggregate the original buildings that will become too close by adding bridges. We grow (bridged) original buildings based on buffering, and simplify the grown buildings. We take into account the shapes of the buildings both at the previous map and goal map to make sure that the buildings are always growing. The running time of our method is in O (n3), where n is the number of edges of all the original buildings. The advantages of our method are as follows. First, the buildings grow continuously and, at the same time, are simplified. Second, right angles of buildings are preserved during growing: the merged buildings still look like buildings. Third, the distances between buildings are always larger than a specified threshold. We do a case study to show the performances of our method. Numéro de notice : C2017-027 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1145/3152178.3152188 Date de publication en ligne : 01/12/2017 En ligne : https://doi.org/10.1145/3152178.3152188 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89290