[n° ou bulletin]
[n° ou bulletin]
| ![]() |
Exemplaires(1)
Code-barres | Cote | Support | Localisation | Section | Disponibilité |
---|---|---|---|---|---|
030-08011 | RAB | Revue | Centre de documentation | En réserve L003 | Disponible |
Dépouillements


Representing forested regions at small scales: automatic derivation from very large scale data / William A Mackaness in Cartographic journal (the), vol 45 n° 1 (February 2008)
![]()
[article]
Titre : Representing forested regions at small scales: automatic derivation from very large scale data Type de document : Article/Communication Auteurs : William A Mackaness, Auteur ; S. Perikleous, Auteur ; Omair Chaudhry, Auteur Année de publication : 2008 Article en page(s) : pp 6 - 17 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] 1:250.000
[Termes IGN] carte dérivée
[Termes IGN] forêt tempérée
[Termes IGN] généralisation automatique de données
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] grande échelle
[Termes IGN] Ordnance Survey (UK)
[Termes IGN] petite échelle
[Termes IGN] Royaume-Uni
[Termes IGN] service web géographiqueRésumé : (Auteur) As with any class of feature, it is important to be able to view woodland or forest at multiple levels of detail. At the detailed level, a map can show clusters of trees, tree types, tracks and paths; at the small scale, say 1:250 000, we can discern broad patterns of forests and other land use, which can inform planners and act as input to land resource models. Rather than store such information in separate databases (requiring multiple points of maintenance), the vision is that the information has a single point of storage and maintenance, and that from this detailed level, various, more generalised forms can be automatically derived. This paper presents a methodology and algorithm for automatically deriving forest patches suitable for representation at 1:250 000 scale directly from a detailed dataset. In addition to evaluation of the output, the paper demonstrates how such algorithms can be shared and utilised via 'generalisation web services', arguing that the sharing of such algorithms can help accelerate developments in map generalisation, and increase the uptake of research solutions within commercial systems. Copyright British Cartographic Society Numéro de notice : A2008-130 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE/INFORMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/000870408X276576 En ligne : https://doi.org/10.1179/000870408X276576 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29125
in Cartographic journal (the) > vol 45 n° 1 (February 2008) . - pp 6 - 17[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 030-08011 RAB Revue Centre de documentation En réserve L003 Disponible Cartographic symbols for humanitarian demining / J. Kostelnick in Cartographic journal (the), vol 45 n° 1 (February 2008)
![]()
[article]
Titre : Cartographic symbols for humanitarian demining Type de document : Article/Communication Auteurs : J. Kostelnick, Auteur ; J. Dobson, Auteur ; S. Egbert, Auteur ; M.D. Dunbar, Auteur Année de publication : 2008 Article en page(s) : pp 18 - 31 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique
[Termes IGN] carte thématique
[Termes IGN] mine antipersonnel
[Termes IGN] normalisation
[Termes IGN] symbole graphiqueRésumé : (Auteur) A new standard set of cartographic symbols for landmine hazards and mine actions (e.g., clearances, hazard reductions, mine risk education (MRE), and technical surveys) in humanitarian demining activities is proposed, as well as a five-step approach that was utilised to develop the symbol set and that may be applied to the design of related map symbols in digital mapping environments. To promulgate the new symbol set, the Geneva International Centre for Humanitarian Demining and the American Geographical Society recently sponsored workshops in New York, NY, and Reston, VA. Workshop attendees, including key representatives from international organisations, private firms, and NGOs, indicated great enthusiasm for a future global standard. Copyright British Cartographic Society Numéro de notice : A2008-131 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/000870408X276585 En ligne : https://doi.org/10.1179/000870408X276585 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29126
in Cartographic journal (the) > vol 45 n° 1 (February 2008) . - pp 18 - 31[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 030-08011 RAB Revue Centre de documentation En réserve L003 Disponible Unfolding the Earth: myriahedral projections / J. Van Wijk in Cartographic journal (the), vol 45 n° 1 (February 2008)
![]()
[article]
Titre : Unfolding the Earth: myriahedral projections Type de document : Article/Communication Auteurs : J. Van Wijk, Auteur Année de publication : 2008 Article en page(s) : pp 32 - 42 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Projections
[Termes IGN] carroyage géographique
[Termes IGN] planisphère
[Termes IGN] polyèdre
[Termes IGN] projection équivalenteRésumé : (Auteur) Myriahedral projections are a new class of methods for mapping the earth. The globe is projected on a myriahedron, a polyhedron with a very large number of faces. Next, this polyhedron is cut open and unfolded. The resulting maps have a large number of interrupts, but are (almost) conformal and conserve areas. A general approach is presented to decide where to cut the globe, followed by three different types of solution. These follow from the use of meshes based on the standard graticule, the use of recursively subdivided polyhedra and meshes derived from the geography of the earth. A number of examples are presented, including maps for tutorial purposes, optimal foldouts of Platonic solids, and a map of the coastline of the earth. Copyright British Cartographic Society Numéro de notice : A2008-132 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/000870408X276594 En ligne : https://doi.org/10.1179/000870408X276594 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29127
in Cartographic journal (the) > vol 45 n° 1 (February 2008) . - pp 32 - 42[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 030-08011 RAB Revue Centre de documentation En réserve L003 Disponible