UDMV: EG Workshop on Urban Data Modelling and Visualisation

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https://diglib.eg.org/handle/10.2312/450

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Browsing UDMV: EG Workshop on Urban Data Modelling and Visualisation by Subject "data structure"

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    A Data Model for Simulation Models Relying on Spatio-temporal Urban Data
    (The Eurographics Association, 2016) Langlois, Jean-Gil; Tourre, Vincent; Servières, Myriam; Gervais, B.; Gesquière, Gilles; Vincent Tourre and Filip Biljecki
    To understand the complexity of modern cities and anticipate their expansion, experts from various fields conceive simulation models that can be very different. Those simulation models work with a variety of data with their own organization. Furthermore, because the urban objects are studied in the context of the evolution of a city or urban area, they carry temporal and spatial information (ADD EXAMPLES). In this paper, we present the base classes of a common data model robust and flexible enough to serve the identified use cases (EXAMPLES). We then introduce a mechanism that allows to add thematic information to those classes (AND OTHER MECHANISMS). We also present some possibilities of the use of the data model. (We end this paper by evoking the future improvements of the data model NOT MANDATORY).
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    Managing Temporal Change of Cities with CityGML
    (The Eurographics Association, 2014) Morel, Maxime; Gesquière, Gilles; Gonzalo Besuievsky and Vincent Tourre
    An increasing number of cities are developing digital models. It becomes thus necessary to take into account changes over time. Interoperability and thus the use of standards is also recommended. In this paper, we propose a new method, based on CityGML to take into account changes in the objects which compose the city. This method is efficient for any kind of changes of the city objects (semantic, geometry, topology or appearance). We then propose an extension of our method in order to consider more frequent changes as it is the case with sensors data that can be linked with part of city objects.