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ICA 2008, 6th Mountain Cartography Workshop, Mountain Mapping and Visualisation Lenk Suisse
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ICA 2008, 6th Mountain Cartography Workshop, Mountain Mapping and Visualisation
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Lenk
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Suisse
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Affiner la recherche Interroger des sources externesCartography of high mountain areas : testing of a new digital cliff drawing method / Loïc Gondol (01/02/2008)
Titre : Cartography of high mountain areas : testing of a new digital cliff drawing method Type de document : Article/Communication Auteurs : Loïc Gondol , Auteur ; Arnaud Le Bris
Editeur : Saint-Mandé : Institut Géographique National - IGN (2008-2011) Année de publication : 01/02/2008 Conférence : ICA 2008, 6th Mountain Cartography Workshop, Mountain Mapping and Visualisation Lenk Suisse Importance : pp 71 - 80 Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] cartographie automatique
[Termes IGN] classification
[Termes IGN] détection automatique
[Termes IGN] logiciel de dessin
[Termes IGN] montagne
[Termes IGN] représentation du reliefRésumé : (Auteur) From now on, the French National Mapping Agengy (IGN France) is set up with the BD Topo. This is a topographic vector database that covers the whole national territory. IGN decided to produce base maps at 1:25k and 1:50k from this database. On topographic mountain maps, rock areas are among the map elements that are the most difficult to produce with digital cartography. In the past, they have been drawn manually by experienced cartographers, using graphic means and working with aerial photographs. Now, e need to focus on 2 points with a digital approach, the first one is the detection and an automated classification of concerned areas. The next one is the development of an adapted cartographic representation of rocks and scree areas. This article presents the first results on these problems. As far as possible, we aim at having automated high mountain cartography with lower production costs. Also, we would like it to be as expressive as it was in previous maps. This is to keep the same cartographic quality of the current base map at 1:25k and 1:50k. Numéro de notice : C2008-025 Affiliation des auteurs : MATIS (1993-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64220 Documents numériques
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