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Les Géoservices IGN : des services divers et innovants pour aller plus loin avec la donnée géographique / Sofiane Kriat in XYZ, n° 151 (juin - août 2017)
[article]
Titre : Les Géoservices IGN : des services divers et innovants pour aller plus loin avec la donnée géographique Type de document : Article/Communication Auteurs : Sofiane Kriat , Auteur Année de publication : 2017 Article en page(s) : pp 13 - 17 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] base de données historiques
[Termes IGN] carte interactive
[Termes IGN] diffusion de données
[Termes IGN] données localisées
[Termes IGN] flux de données
[Termes IGN] géocodage
[Termes IGN] géoportail
[Termes IGN] Institut national de l'information géographique et forestière (France)
[Termes IGN] service web géographique
[Termes IGN] visualisation de donnéesRésumé : (Auteur) L'IGN a mis en place depuis plusieurs mois une offre de Géoservices s'adressant à la fois aux "professionnels" et au "grand public" et couvrant des usages variés. S'appuyant sur le Géoportail, ces services permettent d'aller plus loin avec les données de référence de l'IGN et de ses partenaires. On retrouve notamment parmi ces Géoservices, les Applications IGN, de nouveaux outils innovants accessibles à tous. Numéro de notice : A2017-339 Affiliation des auteurs : IGN (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85564
in XYZ > n° 151 (juin - août 2017) . - pp 13 - 17[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 112-2017021 RAB Revue Centre de documentation En réserve L003 Disponible Documents numériques
en open access
Les Géoservices IGN - pdf éditeurAdobe Acrobat PDF Smart cartographic functionality for improving data visualization in map mashups / Nadia H. Panchaud in Cartographica, vol 52 n° 2 (Summer 2017)
[article]
Titre : Smart cartographic functionality for improving data visualization in map mashups Type de document : Article/Communication Auteurs : Nadia H. Panchaud, Auteur ; Ionuţ Iosifescu Enescu, Auteur ; Lorenz Hurni, Auteur Année de publication : 2017 Article en page(s) : pp 194 - 211 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] activité cartographique
[Termes IGN] aide à la conception informatique
[Termes IGN] application composite
[Termes IGN] cartographie par internet
[Termes IGN] données multisources
[Termes IGN] fonctionnalité
[Termes IGN] géoportail
[Termes IGN] rendu (géovisualisation)
[Termes IGN] sémiologie graphique
[Termes IGN] utilisateurRésumé : (Auteur) Thanks to the growth of geoportal products and online cartographic platforms, access to spatial data has never been so easy for so many people. But access to cartographic knowledge for laypersons using such data is lagging behind. Platforms that allow users to create map mashups from diverse data sources can lead to unsatisfactory cartographic visualization, which reduces the map's legibility and the usefulness of such functions. This article's focus is on creating a framework that supports smart cartographic functions to improve the quality of map mashups. First, we assess the state of cartographic conflicts due to map mashup, using examples from existing geoportals. Afterwards, we describe a framework that allows us to define cartographic functions, focusing on symbology changes and based on a client-side approach. We do not aim to fully model the complex decision-making process of a professional cartographer, but rather to provide a set of smart functions that use appropriate assumptions and constraints based on cartographic principles and semantic information. As proof of concept, the framework and functions are then integrated within a geoportal. Numéro de notice : A2017-376 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/cart.52.2.4115 En ligne : https://doi.org/10.3138/cart.52.2.4115 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85801
in Cartographica > vol 52 n° 2 (Summer 2017) . - pp 194 - 211[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 031-2017021 SL Revue Centre de documentation Revues en salle Disponible Web mercator and raster tile maps : two cornerstones of online map service providers / Emmanuel Stefanakis in Geomatica, vol 71 n° 2 (June 2017)
[article]
Titre : Web mercator and raster tile maps : two cornerstones of online map service providers Type de document : Article/Communication Auteurs : Emmanuel Stefanakis, Auteur Année de publication : 2017 Article en page(s) : pp 100 - 109 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] dalle
[Termes IGN] données maillées
[Termes IGN] projection Universal Transverse Mercator
[Termes IGN] web mappingRésumé : (Auteur)[introduction] The popularity of online map service providers, such as Google Maps, Bing Maps, ArcGIS Online, and OpenStreetMap, has rapidly grown in recent years. It is hard for younger people to imagine and for older people to remember a world without web maps (or, in the same way, without mobile phones), a world that was the reality less than a dozen years ago. Throughout these years, the developers of online map service providers had to address numerous technological challenges. They were called to provide efficient solutions and increase the popularity of the services by delivering voluminous map data to an ever increasing number of web users; and all that over a web infrastructure with severe limitations (low speed, compatibility issues, etc.). Apparently, they had to take important decisions that have eventually affected the technological developments and have imposed de facto standardizations on the online mapping domain. Inevitably, some of these decisions have also had an impact on well-established rules for visualization and delivery of digital maps over the Web. This article focuses onto two corner stones of modern online map services: Web Mercator Projection and Raster Tile Maps. Four hundred and fifty years after the Flemish geographer and cartographer Gerardus Mercator published the most popular map projection ever, Google introduced the Web Mercator variant, which, despite its initial rejection by cartographic committees as “an inappropriate geodesy and cartography,” rapidly became a de facto standard and was adopted by most online map service providers. The tiling of large maps is an old practice. Large paper maps have always been divided into a series of map sheets at various scales. With the increasing popularity of web mapping applications and the rapid growth of map data availability, the pre-computation and caching of map image tiles has become a common practice in online map services, as they use far fewer server resources than maps rendered on demand. The creation of map tiles depends on a series of properties (shape and size of tiles, numbering of zoom levels, subdivision scheme of a tile, etc.). Combining tiles from various servers, including online map providers, might involve some simple or complex transformations. Over the last decade, the values for the above properties have been standardized to facilitate the interoperability between data and applications. The content of this article is organized as follows. Section 2 briefly presents the framework of map services over the Web and describes the technological and cartographical challenges faced by online providers. Section 3 explains the roots and properties of Web Mercator projection. Section 4 describes the map tiles and cached map services. Finally, Section 5 concludes the discussion. Numéro de notice : A2017-846 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.5623/cig2017-203 En ligne : https://doi.org/10.5623/cig2017-203 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89443
in Geomatica > vol 71 n° 2 (June 2017) . - pp 100 - 109[article]Developing an integrated cloud-based spatial-temporal system for monitoring phenology / M. Cope in Ecological Informatics, vol 39 (May 2017)
[article]
Titre : Developing an integrated cloud-based spatial-temporal system for monitoring phenology Type de document : Article/Communication Auteurs : M. Cope, Auteur ; E. Mikhailova, Auteur ; C. Post, Auteur ; M. Schlautman, Auteur ; P. McMillan, Auteur Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] ArcGIS online
[Termes IGN] données écologiques
[Termes IGN] géovisualisation
[Termes IGN] image Flickr
[Termes IGN] informatique en nuage
[Termes IGN] intégration de données
[Termes IGN] inventaire de la végétation
[Termes IGN] phénologie
[Termes IGN] surveillance écologique
[Termes IGN] web mappingRésumé : (auteur) Geospatial cloud computing offers computing infrastructure, software and data services that enable rapid integration of ecological data from various resources. The objectives of this study were to utilize readily-available and low-cost technology (e.g., GPS–enabled cameras, Cloud photo storage, Google Drive) to create a cloud-based spatial-temporal inventory of plant (including flowering phenology) and other relevant information. An interactive ArcGIS Online Map of Lake Issaqueena, SC with sampling locations of flowering plants allows users to obtain additional information (plant, soil, weather data) by selecting sampling locations or soil polygons. The contents of the map can be filtered using any of the attributes (e.g., growth form) in the data tables by selecting specific information. Plant information can be viewed at custom time intervals using the settings in ArcGIS Online. Spatial patterns (e.g., clustering) in the plant data can be viewed using the ArcGIS Online heat map view. The map can be easily queried and viewed on both computers and hand-held devices. Services from multiple cloud infrastructures can be integrated for use by various species monitoring programs, improving workflow and assessment capabilities. Numéro de notice : A2017-184 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.ecoinf.2017.04.007 En ligne : http://doi.org/10.1016/j.ecoinf.2017.04.007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84751
in Ecological Informatics > vol 39 (May 2017)[article]Spatial query based virtual reality GIS analysis platform / Weixi Wang in Neurocomputing, vol (2017)
[article]
Titre : Spatial query based virtual reality GIS analysis platform Type de document : Article/Communication Auteurs : Weixi Wang, Auteur ; Zhihan Lv, Auteur ; Xiaoming Li, Auteur ; et al., Auteur Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] données massives
[Termes IGN] globe virtuel
[Termes IGN] index spatial
[Termes IGN] réalité virtuelle
[Termes IGN] requête spatiale
[Termes IGN] scène virtuelle
[Termes IGN] visualisation 3D
[Termes IGN] WebSIG
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) A virtual reality GIS analysis platform based on spatial query is proposed in this paper. The proposed platform serves 3D digital city and supports integrated VRGIS functions including 3D spatial analysis functions and 3D visualization functions for spatial process. The 3D analysis and visualization of the concerned city massive information are conducted on the platform. The amount of information that can be visualized through this platform is overwhelming, and the GIS-based navigational scheme allows great flexibility in accessing different available data sources. A multi-level mixed three-dimensional space index is built for the virtual scene. Multi-task parallel scheduling and pre-scheduling algorithms are designed to support the distribution and query of spatial data. Experiment result indicates that the designed query algorithm improves the performance of the proposed system. Numéro de notice : A2017-148 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.neucom.2016.06.099 Date de publication en ligne : 11/04/2017 En ligne : http://doi.org/10.1016/j.neucom.2016.06.099 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84643
in Neurocomputing > vol (2017)[article]A virtual globe-based visualization and interactive framework for a small craft navigation assistance system in the near sea / Xinzhu Liu in Journal of Traffic and Transportation Engineering (English Edition), n° (April 2017)PermalinkTowards a knowledge base to support geoprocessing workflow development / Barbara Hofer in International journal of geographical information science IJGIS, vol 31 n° 3-4 (March-April 2017)PermalinkPermalinkA virtual globe-oriented visualization method for 3D meteorological fields / Jing Chen in Geomatics and Information Science of Wuhan University, vol 41 n° 12 (December 2016)PermalinkRendering interior-filled polygonal vector data in a virtual globe / Mengyun Zhou in International journal of geographical information science IJGIS, vol 30 n° 11-12 (November - December 2016)PermalinkAn adaptable equal-area pseudoconic map projection / Daniel "daan" Strebe in Cartography and Geographic Information Science, Vol 43 n° 4 (September 2016)PermalinkLa cartographie à l'heure du géoweb : retour sur les nouveaux modes de représentation spatiale des données numériques / Boris Mericskay in Cartes & Géomatique, n° 229-230 (septembre 2016 - février 2017)PermalinkFrom virtual globes to ArcheoGIS : determining the technical and practical feasibilities / Berdien de Roo in Photogrammetric Engineering & Remote Sensing, PERS, vol 82 n° 9 (September 2016)PermalinkInteractive map to illustrate seat distributions of political party support levels : a web GIS application / Yifei Chen in Cartographica, vol 51 n° 3 (Fall 2016)PermalinkA spatial data infrastructure approach for the characterization of New Zealand's groundwater systems / Alexander Kmoch in Transactions in GIS, vol 20 n° 4 (August 2016)Permalink