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Citizen empowered mapping |
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Affiner la recherche Interroger des sources externesCitizen empowered mapping, ch. 1. Level of details harmonization operations in OpenStreetMap based large scale maps / Guillaume Touya (2017)
Titre de série : Citizen empowered mapping, ch. 1 Titre : Level of details harmonization operations in OpenStreetMap based large scale maps Type de document : Chapitre/Contribution Auteurs : Guillaume Touya Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2017 Collection : Geotechnologies and the Environment, ISSN 2365-0575 Importance : pp 3 - 25 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] cohérence des données
[Termes IGN] données localisées des bénévoles
[Termes IGN] généralisation automatique de données
[Termes IGN] grande échelle
[Termes IGN] harmonisation des données
[Termes IGN] niveau de détail
[Termes IGN] OpenStreetMap
[Termes IGN] qualité des données
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) OpenStreetMap data comprise of very detailed (e.g. zebra crossing) and quite rough features (e.g. built-up area). But making large scale maps from data with inconsistent level of detail often blurs map comprehension. This paper explores the automatic harmonization of OpenStreetMap data for large scale maps, i.e. the process that transforms rough objects to make them consistent with detailed objects. A typology of the new operators that harmonization requires is presented and six algorithms that implement the operators are described. Experiments with these algorithms raise several research questions about automation, parametrization, or the level of abstraction of the transformation, which are discussed in the paper. Numéro de notice : H2017-001 Affiliation des auteurs : LASTIG COGIT (2012-2019) Thématique : GEOMATIQUE Nature : Chapître / contribution nature-HAL : ChOuvrScient En ligne : http://dx.doi.org/10.1007/978-3-319-51629-5_1 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86174
Titre de série : Citizen empowered mapping, ch. 2 Titre : Cartographic representation of soundscape: proposals and assessment Type de document : Chapitre/Contribution Auteurs : Saul Gomez Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2017 Collection : Geotechnologies and the Environment, ISSN 2365-0575 num. 18 Importance : pp 27 - 51 Note générale : bibliographie
This CartASUR project is funded by ADEME, the French Environment and Energy Management Agency (Agreement n° 1217C0035)Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique
[Termes IGN] cartographie du bruit
[Termes IGN] lecture de carte
[Termes IGN] sémiologie graphique
[Termes IGN] utilisateur
[Termes IGN] variable visuelleRésumé : (auteur) Environmental noise is a major concern for city dwellers, however, actual noise maps are not adapted to them. The work described here is developed in the context of the CartASUR project which specifically addresses these deficiencies of noise maps. CartASUR collected perceptual data in several places of Paris using a survey and aiming to define new urban soundscape indicators to offer the possibility of several interpretations depending on the users’ personal and cultural characteristics, and to show them on maps. In this chapter, the indicators sound pleasantness and global loudness are presented. Several cartographic proposals are made to portray indicators during one, two, or three periods (day, evening, night) on maps, and their characteristic features (symbol design, visual variables) are discussed. Cartographic proposals are assessed through a survey which addresses the understanding of cartographic symbols and global properties of maps. The survey concludes that map readers prefer to view complete (both sound pleasantness and global loudness) and precise (three measurement periods) information, even when the amount of information leads to complex maps, which are considered the most attractive and useful. Nevertheless, the survey shows that these complex maps are not well interpreted by a large part of map readers. Use of visual variables color and quantity is discussed and proposals are made to improve symbol understanding. Numéro de notice : H2017-022 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Chapître / contribution nature-HAL : ChOuvrScient DOI : 10.1007/978-3-319-51629-5_2 Date de publication en ligne : 31/05/2017 En ligne : https://doi.org/10.1007/978-3-319-51629-5_2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89342
