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Advancing cartographic research / William Cartwright in International journal of cartography, vol 2 n° 2 (December 2016)  

Public [article]  inInternational journal of cartography > vol 2 n° 2 (December 2016) . - pp 113 - 114 Titre : Advancing cartographic research Type de document : Article/Communication Auteurs : William Cartwright, Auteur ; Anne Ruas , Auteur Année de publication : 2016 Article en page(s) : pp 113 - 114 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique Résumé : (Auteur) This issue of the International Journal of Cartography sees its second year of publication. From the initial idea of developing a journal by International Cartographic Association (ICA) Past-President Professor Georg Gartner, during his time as President, the Journal has now had two volumes, with two issues each (including this issue), published. We, as editors, have been enthusiastically supported by the ICA Executive, Chairs and members of ICA Commissions and scholars undertaking research in Cartography and GIScience. Numéro de notice : A2016--059 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/23729333.2016.1275296 En ligne : http://dx.doi.org/10.1080/23729333.2016.1275296 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84214 [article]

Usability of an opportunistic interface concept for ad hoc ride-sharing / Michael Rigby in International journal of cartography, vol 2 n° 2 (December 2016)  

Public [article]  inInternational journal of cartography > vol 2 n° 2 (December 2016) . - pp 115 - 147 Titre : Usability of an opportunistic interface concept for ad hoc ride-sharing Type de document : Article/Communication Auteurs : Michael Rigby, Auteur ; Stephan Winter, Auteur Année de publication : 2016 Article en page(s) : pp 115 - 147 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] autopartage [Termes IGN] convivialité [Termes IGN] ingénierie des connaissances [Termes IGN] interface web [Termes IGN] recherche du chemin optimal, algorithme de [Termes IGN] site web [Termes IGN] système de transport intelligent Résumé : (Auteur) Interacting with ride-sharing systems for ad hoc travel is a complex spatio-temporal task. The dynamics of service supply and demand challenge the rigidity of traditional human–computer interfaces, introducing service uncertainty and creating a knowledge gap which hinders a client's travel planning. Such interface constraints may mean that a client user is unable to find any ride matching their intentions. To overcome this, a novel visual interface concept, launch pads, has been suggested to replace the traditional interface within a two-step negotiation. To close the proposed approach's feedback loop, this paper investigates human understanding and use of the launch pad metaphor. Usability testing of launch pads is performed using a spatial cognitive engineering approach in directed wayfinding scenarios using various alternative representations. Results highlight that the variances of user interaction times depend on the representation used and reveal potential information overload issues. Using these findings, a minimum decision-making time is defined to tune the system's architecture. Numéro de notice : A2016--060 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/23729333.2016.1145040 En ligne : http://dx.doi.org/10.1080/23729333.2016.1145040 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84215 [article]

Symbolize map distortion with inscribed circles in polygons / Shipeng Sun in International journal of cartography, vol 2 n° 2 (December 2016)  

Public [article]  inInternational journal of cartography > vol 2 n° 2 (December 2016) . - pp 166 - 185 Titre : Symbolize map distortion with inscribed circles in polygons Type de document : Article/Communication Auteurs : Shipeng Sun, Auteur Année de publication : 2016 Article en page(s) : pp 166 - 185 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie [Termes IGN] carte en anamorphose [Termes IGN] cartogramme [Termes IGN] déformation géométrique [Termes IGN] polygone [Termes IGN] projection [Termes IGN] symbole graphique Résumé : (Auteur) For the representation of geographic information, the distortion resulting from map projections and transformations is unwanted but unavoidable. Identical circles systematically arranged on the Earth's ellipsoid have been extensively used to symbolize the map distortion. Despite their effectiveness and popularity, these circles are not explicitly associated with any specific polygons in the map, thus possibly impairing their relevance if the map-readers are interested in particular regions. More importantly, for the map transformation specifically targeting polygons such as the area cartogram, placing the circles completely within the polygons becomes necessary because two neighboring polygons in an area cartogram could have distinctive distortion characteristics. This paper proposes new computer algorithms to enable a map-distortion symbolization approach based on inscribed circles entirely contained in polygons either on a projected 2D plane or on the Earth's ellipsoid. These inscribed circles in polygons (ICIP) are rendered as a series of maximum or equal-sized circles that are spatially exclusive, that is, without overlapping. Compared with the systematically arranged identical circles, the ICIP give cartographers certain flexibility and a new option for the map-distortion symbolization. Two area cartograms and three map projections are provided as examples to illustrate their usage and possible contribution in different mapping scenarios. Numéro de notice : A2016--061 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/23729333.2016.1179863 En ligne : http://dx.doi.org/10.1080/23729333.2016.1179863 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84216 [article]