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Solutions for 4D cadastre - with a case study on utility networks / F. Döner in International journal of geographical information science IJGIS, vol 25 n° 6-7 (june - july 2011)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 25 n° 6-7 (june - july 2011) . - pp 1173 - 1189 Titre : Solutions for 4D cadastre - with a case study on utility networks Type de document : Article/Communication Auteurs : F. Döner, Auteur ; R. Thompson, Auteur ; Jantien E. Stoter, Auteur ; et al., Auteur Année de publication : 2011 Article en page(s) : pp 1173 - 1189 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cadastre étranger [Termes IGN] base de données localisées 3D [Termes IGN] cadastre 3D [Termes IGN] données spatiotemporelles [Termes IGN] modèle conceptuel de données [Termes IGN] Pays-Bas [Termes IGN] Queensland (Australie) [Termes IGN] réseau technique urbain [Termes IGN] Turquie Résumé : (Auteur) The increasing complexity and flexibility of modern land use requires that cadastres need to manage information on the third and temporal (fourth) dimension. This article considers the registration of legal space of utility networks in cadastre in this 3D + time (=4D) context. A requirement analysis in three countries that have methods to register utility networks complying with their legal, organizational and technical structure (Turkey, the Netherlands and Queensland, Australia) is the basis for three alternatives for 4D cadastre to register utility networks. The three alternatives are analysed with respect to legal, organizational and technical cadastral requirements. This article presents a case study and a prototype from the Netherlands. In this country by law utilities are considered to be real estate objects with obligatory registration of ownership and geometry. This study shows that the 3D space and separate temporal attributes approach (state-based model) is a very promising solution to maintain temporal changes of utility networks and that this approach is to be preferred above the current practice, where the 3D and temporal aspects are not considered when registering a network. Numéro de notice : A2011-568 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658816.2010.520272 En ligne : http://dx.doi.org/10.1080/13658816.2010.520272 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79399 [article]

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079-2011041	SL	Revue	Centre de documentation	Revues en salle	Disponible

Connectivity in the regular polytope representation / R. Thompson in Geoinformatica, vol 15 n° 2 (April 2011)  

Public [article]  inGeoinformatica > vol 15 n° 2 (April 2011) . - pp 223 - 246 Titre : Connectivity in the regular polytope representation Type de document : Article/Communication Auteurs : R. Thompson, Auteur ; Peter J. M. Van Oosterom, Auteur Année de publication : 2011 Article en page(s) : pp 223 - 246 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] algèbre de Boole [Termes IGN] base de données localisées [Termes IGN] connexité (graphes) [Termes IGN] objet géographique [Termes IGN] raisonnement spatial [Termes IGN] relation topologique [Termes IGN] traitement géométrique de données Résumé : (Auteur) In order to be able to draw inferences about real world phenomena from a representation expressed in a digital computer, it is essential that the representation should have a rigorously correct algebraic structure. It is also desirable that the underlying algebra be familiar, and provide a close modelling of those phenomena. The fundamental problem addressed in this paper is that, since computers do not support real-number arithmetic, the algebraic behaviour of the representation may not be correct, and cannot directly model a mathematical abstraction of space based on real numbers. This paper describes a basis for the robust geometrical construction of spatial objects in computer applications using a complex called the “Regular Polytope”. In contrast to most other spatial data types, this definition supports a rigorous logic within a finite digital arithmetic. The definition of connectivity proves to be non-trivial, and alternatives are investigated. It is shown that these alternatives satisfy the relations of a region connection calculus (RCC) as used for qualitative spatial reasoning, and thus introduce the rigor of that reasoning to geographical information systems. They also form what can reasonably be termed a “Finite Boolean Connection Algebra”. The rigorous and closed nature of the algebra ensures that these primitive functions and predicates can be combined to any desired level of complexity, and thus provide a useful toolkit for data retrieval and analysis. The paper argues for a model with two and three-dimensional objects that have been coded in Java and which implement a full set of topological and connectivity functions which is shown to be complete and rigorous. Numéro de notice : A2011-088 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1007/s10707-009-0094-3 Date de publication en ligne : 20/10/2009 En ligne : https://doi.org/10.1007/s10707-009-0094-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30868 [article]

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Spatial objects / R. Thompson in GIM international, vol 22 n° 7 (July 2008)

Public [article]  inGIM international > vol 22 n° 7 (July 2008) . - pp 23 - 27 Titre : Spatial objects Type de document : Article/Communication Auteurs : R. Thompson, Auteur ; Peter J. M. Van Oosterom, Auteur Année de publication : 2008 Article en page(s) : pp 23 - 27 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] base de données localisées [Termes IGN] cohérence des données [Termes IGN] coordonnées cartésiennes géocentriques [Termes IGN] normalisation [Termes IGN] objet géographique 3D [Termes IGN] objet géographique complexe [Termes IGN] polyèdre convexe [Termes IGN] polytope [Termes IGN] représentation vectorielle [Termes IGN] spécification de produit [Termes IGN] validité des données Résumé : (Auteur) With the expending use of spatial information comes a growing need to interchange this information. Parallel runs of development of spatial databases serving multiple applications. Both have highlighted the need for consistency of representation and behaviour of spatial objects across computing platforms. Copyright Reed Business Information Numéro de notice : A2008-219 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29214 [article]

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061-08071	RAB	Revue	Centre de documentation	En réserve L003	Disponible