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Affiner la recherche Interroger des sources externesAn approach for identifying and analysing reference features and spatial relations used in mountain emergency calls / Mattia Bunel (2019)
Titre : An approach for identifying and analysing reference features and spatial relations used in mountain emergency calls Type de document : Article/Communication Auteurs : Mattia Bunel Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) Editeur : International Cartographic Association ICA Année de publication : 2019 Autre Editeur : Göttingen : Copernicus publications Collection : Proceedings of the ICA Projets : CHOUCAS / Raimond, Ana-Maria Importance : 9 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes descripteurs IGN] aide à la localisation
[Termes descripteurs IGN] croquis topographique
[Termes descripteurs IGN] données localisées
[Termes descripteurs IGN] montagne
[Termes descripteurs IGN] raisonnement spatial
[Termes descripteurs IGN] relation spatiale
[Termes descripteurs IGN] secours d'urgenceRésumé : (Auteur) The CHOUCAS project aims at helping mountain rescue services to locate a victim who describes her location by means of spatial relations with reference geographic features. In this context, the study presented in this paper aims at better understanding what reference features and spatial relations are used to locate oneself in a mountain area, with the ultimate aim of designing tools to help the rescuers. Audio tapes of real emergency calls were used as starting material. The core of the work is the design of a template to transcribe the location information contained in these calls while structuring it. A first analysis of the transcribed calls shows that projective or directional static spatial relations are the most used, and that a finer classification of reference features and spatial relations is needed. In order to synthetically present the location information contained in a call, an additional representation by means of a sketch map with a dedicated symbolisation is proposed. Numéro de notice : C2019-009 Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/ica-proc-2-12-2019 date de publication en ligne : 10/07/2019 En ligne : https://doi.org/10.5194/ica-proc-2-12-2019 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93257 Documents numériques
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Titre : CartAGen: an open source research platform for map generalization Type de document : Article/Communication Auteurs : Guillaume Touya Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) Editeur : International Cartographic Association ICA Année de publication : 2019 Autre Editeur : Göttingen : Copernicus publications Collection : Proceedings of the ICA Projets : 1-Pas de projet / Importance : 9 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] algorithme de généralisation
[Termes descripteurs IGN] CartAGen (plateforme de généralisation)
[Termes descripteurs IGN] généralisation cartographique automatisée
[Termes descripteurs IGN] logiciel libre
[Termes descripteurs IGN] organisme cartographique national
[Termes descripteurs IGN] plateforme logicielle
[Termes descripteurs IGN] système multi-agents
[Vedettes matières IGN] GénéralisationRésumé : (Auteur) Automatic map generalization is a complex task that is still a research problem and requires the development of research prototypes before being usable in productive map processes. In the meantime, reproducible research principles are becoming a standard. Publishing reproducible research means that researchers share their code and their data so that other researchers might be able to reproduce the published experiments, in order to check them, extend them, or compare them to their own experiments. Open source software is a key tool to share code and software, and CartAGen is the first open source research platform that tackles the overall map generalization problem: not only the building blocks that are generalization algorithms, but also methods to chain them, and spatial analysis tools necessary for data enrichment. This paper presents the CartAGen platform, its architecture and its components. The main component of the platform is the implementation of several multi-agent based models of the literature such as AGENT, CartACom, GAEL, CollaGen, or DIOGEN. The paper also explains and discusses different ways, as a researcher, to use or to contribute to CartAGen. Numéro de notice : C2019-010 Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/ica-proc-2-134-2019 date de publication en ligne : 10/07/2019 En ligne : https://doi.org/10.5194/ica-proc-2-134-2019 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93258 Documents numériques
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Titre : Contour lines generation in karstic plateaus for topographic maps Type de document : Article/Communication Auteurs : Guillaume Touya Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) Editeur : International Cartographic Association ICA Année de publication : 2019 Autre Editeur : Göttingen : Copernicus publications Collection : Proceedings of the ICA Projets : 1-Pas de projet / Importance : 8 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes descripteurs IGN] carte topographique
[Termes descripteurs IGN] contour
[Termes descripteurs IGN] données lidar
[Termes descripteurs IGN] données localisées 3D
[Termes descripteurs IGN] effondrement de terrain
[Termes descripteurs IGN] grotte
[Termes descripteurs IGN] Jura, massif du
[Termes descripteurs IGN] karst
[Termes descripteurs IGN] lissage de données
[Termes descripteurs IGN] modèle numérique de terrain
[Termes descripteurs IGN] QGISRésumé : (auteur) Contour lines are a key features of topographic maps as they make the comprehension of terrain more easy. But they are no longer drawn by cartographers, they are mostly automatically derived from digital terrain models. Despite real progress in this automated derivation, some specific terrain landscapes remain incorrectly depicted with such techniques, and this is the case for karstic plateaus full of sinkholes. This paper proposes a specific automated method to derive better contour lines in plateaus, particularly around sinkholes. The process first detects karstic plateaus with many sinkholes, as well as the individual sinkholes. Then, the DTM is smoothed to better reflect the terrain in the plateau and in its surroundings. As a third step, the contour lines around sinkholes are enhanced to draw legible round features that better reflect the real terrain. The process was implemented in a QGIS plugin and tested on a small area with a karstic plateau in the Jura mountain in France, and the cartographers of IGN, the French national mapping agency assessed the results as a great improvement compared to the generic automated process to derive contour lines. Numéro de notice : C2019-011 Thématique : GEOMATIQUE/IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/ica-proc-2-133-2019 date de publication en ligne : 10/07/2019 En ligne : http://dx.doi.org/10.5194/ica-proc-2-133-2019 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93259 Documents numériques
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Titre : Engraved footprints from the past. Retrieving cartographic geohistorical data from the Cassini Carte de France, 1750-1789 Type de document : Article/Communication Auteurs : Bertrand Duménieu Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) Editeur : International Cartographic Association ICA Année de publication : 2019 Importance : 2 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes descripteurs IGN] base de données localisées
[Termes descripteurs IGN] carte de Cassini
[Termes descripteurs IGN] carte de France
[Termes descripteurs IGN] code source libre
[Termes descripteurs IGN] données vectorielles
[Termes descripteurs IGN] esthétique cartographique
[Termes descripteurs IGN] extraction de données
[Termes descripteurs IGN] histoire de la cartographie
[Termes descripteurs IGN] système d'information géographiqueRésumé : (auteur) Antique maps are full of engraved geohistorical features. They provide representations of past states of the geographical space and are favored by historians and social scientists for their uniqueness and coherence. Working on a GIS dedicated to the history of the French territory, we extracted spatial information from the Cassini Carte de France (full name Carte Générale & Particulière de la France) as vector data. Based on the first geodetic survey of France [1, 4], this well-known and monumental map has been drawn on 182 paper sheets of size 610 x 955 mm at the scale of 1:86,400 or 1 line for 100~toises (1 inch to 1.36 miles). It depicts the French territory with fine-grained information about populated and named places, settlements, landscape features, hydrographic, ecclesiastical and road networks [3, 5, 6, 7]. As a case study, the sheet numbered 52 provided more than 6 800 spatial footprints that we have stored as a geographic database. Following the distinction made by Cassini himself between “geometric” and “topographic” entities, our geographical database is composed of two families of data, namely Triangulated Geographical Entities (“geometric” entities in Cassini’s own terms) whose geodetic properties are partly documented and Relative Geographical Entities (“topographic” in Cassini’s terms) which are dependent on and located relative to the former (Fig. 1). Those entities are analytically distinct but come together from a single artifact: the primary source they are engraved in during the mapmaking process. Because this process of embeddedness is not fully documented, retrieving both classes of entities called for a cautious cartographic visualisation with similar semiological rules and aesthetics as the original historical map (Fig. 2). This “Cassini map style” preserves the cartographic properties of the geohistorical data extracted from this primary source: generalisation, scale, spatial granularity and the overall intentions of the mapmakers [2]. Often neglected, such properties are constitutive components and dimensions of the mapping style which forms the context and gives crucial information on the accuracy and the relationships between geo-historical data enclosedin.Ourposterprovidesarenewedcartographicvisualisationofthesheet52ndsheetoftheCartedeFrance, centred on the french cities of Clermont, Riom and Thiers. It reveals unnoticed cartographic entities that were hardly legible in the original map. The historiography of cartography has been largely, and for a long time, based on critical edition of old maps published as non-georeferenced facsimile. We propose to renew this approach by producing digital maps from vector geographic databases that combine the aesthetics and semiology of old map styles with the modelling capabilities of modern GIS. Numéro de notice : C2019-036 Thématique : GEOMATIQUE Nature : Poster nature-HAL : Poster-avec-CL DOI : 10.5194/ica-abs-1-68-2019 En ligne : https://doi.org/10.5194/ica-abs-1-68-2019 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95335
Titre : Feedbacks on VGI in-situ campaign for updating LULC data Type de document : Article/Communication Auteurs : Laurence Jolivet Congrès : Congrès: ICC 2019, 29th International Cartographic Conference ICA Mapping everything for everyone (15 - 20 juillet 2019; Tokyo, Japon) Editeur : International Cartographic Association ICA Année de publication : 2019 Importance : 2 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes descripteurs IGN] 1:5.000
[Termes descripteurs IGN] application web
[Termes descripteurs IGN] données localisées des bénévoles
[Termes descripteurs IGN] Institut national de l'information géographique et forestière (France)
[Termes descripteurs IGN] mise à jour de base de données
[Termes descripteurs IGN] Occitanie (région 2016)
[Termes descripteurs IGN] occupation du sol
[Termes descripteurs IGN] production participative
[Termes descripteurs IGN] utilisation du solRésumé : (auteur) The goal of this paper is to present the defined strategy for running an in-situ campaign about LULC authoritative data monitoring and to give an overview about the data collected during the campaign. The targeted database is OCS-GE containing LULC data which is produced by IGN France for a 1: 5.000 scale use.A mobile application named PAYSAGES was implemented for collecting in-situ information. Contributions have been recorded about edition of uses for buildings, quarries, construction areas, agricultural fields and about validation of automatically detected changes. Numéro de notice : C2019-045 Thématique : GEOMATIQUE Nature : Poster nature-HAL : Poster-avec-CL DOI : 10.5194/ica-abs-1-152-2019 date de publication en ligne : 15/07/2019 En ligne : https://www.abstr-int-cartogr-assoc.net/1/152/2019/ Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95339 PermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkICC 2017, the 28th International Cartographic Conference, à Washington, USA, 2–7 July 2017, proceedings / International cartographic association = association cartographique internationale (2017)
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