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Automatic rendering - AbstractAdobe Acrobat PDF
Titre : Dynamic styling for thematic mapping Type de document : Article/Communication Auteurs : Simon Moncrieff, Auteur ; Elizabeth-Kate Gulland, Auteur Editeur : [s.l.] : [s.n.] Année de publication : 2015 Conférence : FOSS4G 2015, International conference, Free and open source software for geospatial conference 14/09/2015 19/09/2015 Séoul Corée du Sud open access proceedings Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] architecture REST
[Termes IGN] carte thématique
[Termes IGN] cartographie à la volée
[Termes IGN] cartographie dynamique
[Termes IGN] démonstration de faisabilité
[Termes IGN] objet cartographique
[Termes IGN] objet géographique ponctuel
[Termes IGN] objet géographique zonal
[Termes IGN] prototype
[Termes IGN] service web géographique
[Termes IGN] style cartographique
[Termes IGN] Styled Layer Descriptor
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) Current web standards have facilitated the online production and publication of thematic maps as a useful aid to interpretation of spatial data and decision making. Patterns within the raw data can be highlighted with careful styling choices, which can be defined for online maps using tools such as Styled Layer Descriptor (SLD) XML schema. Dynamic generation of maps and map styles extends their use beyond static publication and into exploration of data which may require multiple styles and visualisations for the same set of data. This paper explores the application of thematic styling options to online data, including mapping services such as Open Geospatial Consortium (OGC)-compliant Web Mapping and Web Feature Services. In order to be relevant for both user-specified and automated styling, a prototype online service was developed to explore the generation of styling schema when given data records plus the required output data type and styling parameters. Style choices were applied on-the-fly and to inform the styling characteristics of non-spatial visualisations. A stand-alone web service to produce styling definitions requires a mechanism, such as a RESTful interface, to specify its own capabilities, accept style parameters, and produce schema. The experiments in this paper are an investigation into the requirements and possibilities for such a system. Styles were applied using point and polygon feature data as well as spatially-contextual records (for example, data that includes postal codes or suburb names but no geographical feature definitions). Functionality was demonstrated by accessing it from an online geovisualisation and analysis system. This exploration was carried out as a proof of concept for generation of a map styling web service that could be used to implement automated or manual design choices. Numéro de notice : C2015-045 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83775 Documents numériques
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Dynamic styling for thematic mappingAdobe Acrobat PDF
contenu dans ICC'15, 27th International Cartographic Conference, Rio de Janeiro, Brazil / International cartographic association = association cartographique internationale (2015)
Titre : A system to apply cartographic practices on 3D renderings Type de document : Article/Communication Auteurs : Mickaël Brasebin , Auteur ; Elodie Buard , Auteur ; Sidonie Christophe , Auteur ; Florian Pelloie, Auteur Editeur : International Cartographic Association ICA - Association cartographique internationale ACI Année de publication : 2015 Conférence : ICC 2015, 27th International Cartographic Conference, 16th General Assembly 23/08/2015 28/08/2015 Rio de Janeiro Brésil open access proceedings Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] données localisées 3D
[Termes IGN] rendu réaliste
[Termes IGN] style cartographique
[Termes IGN] symbole graphique 3D
[Termes IGN] variable visuelle
[Vedettes matières IGN] GéovisualisationRésumé : (auteur) 3D renderings are used and abused, notably for public consultation concerning urban projects. As 3D semiotics is not clearly defined (Häberling, 2008), the impact of graphic parameters (e.g. material color or light) of such renderings on public understanding and perception is not controlled. On the contrary, in cartographic domain, good practices based on a set of visual variables have been recommended by (Bertin, 1982) in order to ensure understandable cartographic messages. The aim of our work is to use and revisit these practices to apply them on 3D renderings and thus to create 3D semiotics. In this contribution, we introduce an original generic method to assess styles of 3D renderings. The first step is to define 3D styles. We analyse graphic parameters of each geographic features composing the rendering (e.g. sidewalk, tree trunk, house roof or door). Four categories of styles are highlighted combining two pairs of characteristics, level of details and level of photorealism: detailed representation vs non-detailed representation and photorealistic representation (PR) vs non-photorealistic representation (NPR). In order to illustrate these four categories, a collection of 3D renderings, from urban projects focused on one building, has been set up. Each rendering can then be systematically described and categorized into theses categories, pointing out the graphic parameters that participate to the categories. As an example, it turns out that window transparency and absence of edging increase photorealism perception. In a second step, we want to navigate automatically between the styles belonging to these categories, for a same rendering. For that, transformations between renderings are described into elementary modifications of graphic parameters and traduced into visual variables in using the matrix proposed in (Jobst, 2008). For example, for a tested transformation between NP to NPR styles, hue, grain and value visual variables are modified. In future work, the undertaken method could be improved in extracting automatically necessary graphic parameters. In the long term, we aim to create methods to automatically change styles (3D or even 2D) according to the context of users and purposes. For that, we could apply and study other types of cartographic practices, not only based on visual variables, but concerning: identification of thematic relationships between geographic features in the rendering, rules to preserve readability of neighbour features using color, shape or style contrasts or adding thematic qualitative or quantitative informations. As for the users, our objective is to provide them tools to create 3D renderings with a specific style and relevant to their objectives. Numéro de notice : C2015-023 Affiliation des auteurs : LASTIG COGIT (2012-2019) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://icaci.org/files/documents/ICC_proceedings/ICC2015/papers/31/index.html Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83161 Documents numériques
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A system to apply cartographic practices ... - pdf auteurMS word document Design principles for Swiss-style rock drawing / Bernhard Jenny in Cartographic journal (the), vol 51 n° 4 (November 2014)
[article]
Titre : Design principles for Swiss-style rock drawing Type de document : Article/Communication Auteurs : Bernhard Jenny, Auteur ; Jürg Gilgen, Auteur ; Roman Geisthövel, Auteur Année de publication : 2014 Article en page(s) : pp 360-371 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Rédaction cartographique
[Termes IGN] dessin assisté par ordinateur
[Termes IGN] dessin automatique
[Termes IGN] dessin cartographique
[Termes IGN] hachure
[Termes IGN] rocher
[Termes IGN] spécification
[Termes IGN] style cartographique
[Termes IGN] SwisstopoRésumé : (Auteur) Swiss-style rock drawing uses shaded hachures to show the characteristic forms and the third dimension of rocks and cliffs. Rock faces, trenches, gullies, faults and other rock features relevant for orientation and navigation in mountainous areas are shown as seen from the ground instead of from an orthogonal perspective. The density and dimensions of hachures change with the exposure to a source of illumination to generate a shading effect that highlights the terrain’s three-dimensionality. The generation of rock drawings in Swiss style is time-intensive and requires an eye for the artistic rendering of the terrain’s third dimension as well as an understanding of different rock types and their morphology. Design principles have not yet been documented in a detailed and comprehensive manner and only rudimentary algorithms exist for the digital generation of simplified representations. This paper discusses the defining characteristics and specific design principles of Swiss-style rock drawing based on figures and unpublished documentation from the Swiss Federal Office of Topography swisstopo. We identify three main types of hachure-based rock drawing and discuss graphical elements for the most common type. We also discuss the combination of rock drawings with contour lines, their generalisation and the drawing process. Numéro de notice : A2014-645 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277413Y.0000000052 En ligne : https://doi.org/10.1179/1743277413Y.0000000052 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75091
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Titre : Approche pour la formalisation des styles topographiques Type de document : Article/Communication Auteurs : Jérémie Ory , Auteur Editeur : Saint-Mandé : Institut national de l'information géographique et forestière - IGN (2012-) Année de publication : 2014 Conférence : Journées Recherche de l'IGN 2014, 23es Journées 20/03/2014 21/03/2014 Saint-Mandé France JR IGN 2014 Langues : Français (fre) Descripteur : [Termes IGN] cognition
[Termes IGN] détail topographique
[Termes IGN] style cartographique
[Vedettes matières IGN] GéovisualisationMots-clés libres : pratiques cartographiques caractéristiques graphiques Numéro de notice : C2014-003 Affiliation des auteurs : LASTIG COGIT (2012-2019) Thématique : GEOMATIQUE Nature : Poster nature-HAL : Poster-sans-CL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78471 Documents numériques
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