Graphics modeling and realistic computer approach, visualization of peri-urban landscape

Alinat Sandrine, Carrié Christian, Auclair Daniel. 2003. Graphics modeling and realistic computer approach, visualization of peri-urban landscape. In : Plant growth modeling and applications. Proceedings PMA03 : The First International symposium on plant growth modeling, simulation, visualization and their applications, Beijing, China, October 13-16, 2003. Hu Bao-Gang (ed.), Jaeger Marc (ed.). Institut d'automatique-LIAMA, Chinese Agriculture University. Pékin : Tsinghua University Press, 418-426. ISBN 7-302-07140-3 International Symposium on Plant Growth Modeling, Simulation, Visualization and their Applications (PMA03). 1, Pékin, Chine, 13 Octobre 2003/16 Octobre 2003.

Résumé : Peri-urban landscapes, are rapidly undergoing transformations, in relation with socio-economic changes. Nature as forest are generally considered as important cultural features of the landscape, and their management can offer many opportunities for enhancing the aesthetic value of territorial projects. The resulting visual aspect is however not easy to convey to decision makers and to the general public. Representing landscapes has always been a difficult task. Tools for the landscape representation result mainly from geomatic and the graphic data processing. Geographic information systems (GIS) are efficient computer tools providing a spatialised database, however, the 3-dimensional visualisation. In the present study two different approaches have been used to represent complexity of the changes in a peri-urban landscape: schematic graphic modeling and realistic computer visualisation. In the schematic representations, the organisation, configuration and spatial dynamics are based on the arrangement of elementary structures called "choremes". A model map outlines and emphasises their ordering and their role. The elementary "choremes" corresponding to classical spatial models help to understand and select the fundamental structures of spatial organisation. They generate logical patterns of spatial organisation that lead to the construction of a theoretical model of megalopolis process. Realistic computer visualisation is realised with AMAP and IMAGIS software which enable to create and manipulate three-dimensional scenes made of groups of 3D shapes representing the content of the different geographic objects. Both modeling approaches, by the method of the choremes and the simulation of 3D virtual landscapes with AMAP, produce spatial dynamics representations which help the negotiation process of development stakes and facilitates animation and diagnosis. The analysis of the present study has resulted in proposing a new approach for a more effective use of the spatial representations within territorial projects.

Classification Agris : U10 - Informatique, mathématiques et statistiques
B10 - Géographie
P31 - Levés et cartographie des sols

Auteurs et affiliations

• Alinat Sandrine, CIRAD-AMIS-AMAP (FRA)
• Carrié Christian
• Auclair Daniel, CIRAD-AMIS-AMAP (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/520451/)

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