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Principles and terminology of true-3D geovisualisation / Claudia Knust in Cartographic journal (the), vol 51 n° 3 (August 2014)  

Public [article]  inCartographic journal (the) > vol 51 n° 3 (August 2014) . - pp 191 - 202 Titre : Principles and terminology of true-3D geovisualisation Type de document : Article/Communication Auteurs : Claudia Knust, Auteur ; Manfred F. Buchroithner, Auteur Année de publication : 2014 Article en page(s) : pp 191 - 202 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse géovisuelle [Termes IGN] géovisualisation [Termes IGN] stéréoscopie [Termes IGN] visualisation 3D [Vedettes matières IGN] Géovisualisation Résumé : (Auteur) In different scientific fields, the abbreviation ‘3D’ is used in a multitude of ways. Hence, one might easily lose track of what 3D means in a particular context. 3D is just a generic term which the authors are trying to classify into different groups. An overview of the technical status of 3D technologies serves to explain the importance of the three-dimensionality in cartography. Solid landscape embodiments as well as pseudo-three-dimensional and truly three-dimensional autostereoscopic visualisations on planar displays are treated. Starting with the reasons for the advantages and the necessities for true-3D representations the article deals with the classification and explanation of the different true-3D visualisation techniques so far materialized for geodata, in particular at the Institute for Cartography of the Dresden University of Technology. Numéro de notice : A2014-447 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277413Y.0000000038 En ligne : https://doi.org/10.1179/1743277413Y.0000000038 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74001 [article]

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Colour contrast in cartographic works using the principles of Johannes Itten / Jan D. Bláha in Cartographic journal (the), vol 51 n° 3 (August 2014)  

Public [article]  inCartographic journal (the) > vol 51 n° 3 (August 2014) . - pp. 203–213 Titre : Colour contrast in cartographic works using the principles of Johannes Itten Type de document : Article/Communication Auteurs : Jan D. Bláha, Auteur ; Zbynèk Štèrba, Auteur Année de publication : 2014 Article en page(s) : pp. 203–213 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] conception cartographique [Termes IGN] contraste de couleurs [Termes IGN] couleur à l'écran [Termes IGN] couleur imprimée Résumé : (Auteur) Colour is considered a key means of expression for use in cartographic works. This is because colours and the relations among them influence not only the aesthetic impression a map creates but also its overall utility. In addition to Newton’s spectral colour theory, today theories with origins in artistic technique are gaining ground in cartography. This article introduces J. Itten’s colour theory (first published in 1961 in The Art of Colour [Kunst der Farbe]) with special attention given to his concept of seven colour contrasts. The article also discusses the suitability and unsuitability of their application in practical cartography, and it contributes original examples employing thematic maps, a discipline with broad possibilities for the application of these inventive methods by today’s mapmakers. Numéro de notice : A2014-448 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277414Y.0000000084 En ligne : http://dx.doi.org/10.1179/1743277414Y.0000000084 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74002 [article]

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Defacing the map : cartographic vandalism in the digital commons / Andrea Ballatore in Cartographic journal (the), vol 51 n° 3 (August 2014)  

Public [article]  inCartographic journal (the) > vol 51 n° 3 (August 2014) . - pp. 214-224 Titre : Defacing the map : cartographic vandalism in the digital commons Type de document : Article/Communication Auteurs : Andrea Ballatore, Auteur Année de publication : 2014 Article en page(s) : pp. 214-224 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] attaque informatique [Termes IGN] cartographie collaborative [Termes IGN] données localisées des bénévoles [Termes IGN] OpenStreetMap [Termes IGN] production participative [Termes IGN] qualité des données [Termes IGN] Wikimapia Résumé : (Auteur) This article addresses the emergent phenomenon of carto-vandalism, the intentional defacement of collaborative cartographic digital artefacts in the context of volunteered geographic information. Through a qualitative analysis of reported incidents in WikiMapia and OpenStreetMap, a typology of this kind of vandalism is outlined, including play, ideological, fantasy, artistic and industrial carto-vandalism, as well as carto-spam. Two families of counter-strategies deployed in amateur mapping communities are discussed. First, the contributors organize forms of policing, based on volunteered community involvement, patrolling the maps and reporting incidents. Second, the detection of carto-vandalism can be supported by automated tools, based either on explicit rules or on machine learning. Numéro de notice : A2014-449 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277414Y.0000000085 En ligne : https://doi.org/10.1179/1743277414Y.0000000085 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74004 [article]

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Effects of cartographic elevation visualizations and map-reading tasks on eye movements / Katja Putto in Cartographic journal (the), vol 51 n° 3 (August 2014)  

Public [article]  inCartographic journal (the) > vol 51 n° 3 (August 2014) . - pp. 225–236 Titre : Effects of cartographic elevation visualizations and map-reading tasks on eye movements Type de document : Article/Communication Auteurs : Katja Putto, Auteur ; Pyry Kettunen, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp. 225–236 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Rédaction cartographique [Termes IGN] estompage [Termes IGN] étude d'impact [Termes IGN] lecture de carte [Termes IGN] représentation cartographique [Termes IGN] représentation du relief Résumé : (Auteur) Users prefer more realistic visualizations, even though they may be less efficient or even detrimental for a given task. In some previous studies, the evidence has shown that relief shading facilitates the landform interpretation while other studies have provided contrary results. In the present study, the effect of three different visualizations of elevation information on eye movements and performance was investigated in visual search, area selection, and route planning tasks. The results showed that the visualization of relief information affected the performance and eye movements in the visual search task. Overall, the eye movements differed between the search and area selection tasks, as well as between the search and route planning tasks. The result showed that the relief shading did not slow down the performance, either in terms of response time or eye movement measures. Numéro de notice : A2014-450 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277414Y.0000000087 En ligne : https://doi.org/10.1179/1743277414Y.0000000087 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74005 [article]

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Exploring eye movement patterns on cartographic animations using projections of a space-time-cube / Alexander Salveson Nossum in Cartographic journal (the), vol 51 n° 3 (August 2014)  

Public [article]  inCartographic journal (the) > vol 51 n° 3 (August 2014) . - pp. 249-256 Titre : Exploring eye movement patterns on cartographic animations using projections of a space-time-cube Type de document : Article/Communication Auteurs : Alexander Salveson Nossum, Auteur Année de publication : 2014 Article en page(s) : pp. 249-256 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Rédaction cartographique [Termes IGN] cartographie dynamique [Termes IGN] cube espace-temps [Termes IGN] oculométrie [Termes IGN] visualisation cartographique Résumé : (Auteur) Analysis of eye movements has been used for decades as a method for assessing the performance of visual stimuli. Until recently, this has mainly been applied to static and non-cartographic stimuli, but due to technological developments and reduced cost of equipment, interactive and cartographic applications are now feasible. Li et al. (2010) suggest a new analysis method which applies Hägerstrand’s Space-Time-Cube (STC; Hägerstrand, 1970) to eye movement data. However, in an interactive three-dimensional STC, identifying and exploring key behaviours can be difficult. In order to ameliorate these difficulties, we propose a variation of the STC method, which uses two-dimensional projections of the STC onto the XT and YT planes. These two-dimensional projections are found to facilitate rapid identification of significant patterns in the data set. A prototype implementing this and other dynamical methods has been developed, and is presented with examples illustrating the benefits of working with two-dimensional projections of the STC. Numéro de notice : A2014-451 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277412Y.0000000031 En ligne : https://doi.org/10.1179/1743277412Y.0000000031 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74006 [article]

Exemplaires(1)

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030-2014031	RAB	Revue	Centre de documentation	En réserve L003	Disponible