Sawing of logs in virtural trees using 3D intersection algorithms

Szafran N., Despréaux Denis, Biard L., Blaise Frédéric. 2003. Sawing of logs in virtural trees using 3D intersection algorithms. 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, 372-383. 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 : This work is issued from researches developed in the Programme of Plant Modeling Programme (AMAP) at Cirad: modeling, simulation and visualisation of trees. The goal is to extract and to visualise sawed boards from virtual trees, which are produced by the software AMAP. The initial geometric description of the trees have to be adapted to the sawing: the branches are not "correctly" connected to the trunk, So, in collaboration with the laboratory LMC, two approaches have been developed. The first one uses 2D image techniques while in the second one, a new description of the surfaces is developed with some 3D intersections algorithms to solve the problem of connections. It uses Bézier surfaces and geometrical connection techniques.

Classification Agris : U10 - Informatique, mathématiques et statistiques
F62 - Physiologie végétale - Croissance et développement
F50 - Anatomie et morphologie des plantes

Auteurs et affiliations

• Szafran N., IMAG (FRA)
• Despréaux Denis, CIRAD-DG-Direction générale (FRA)
• Biard L., IMAG (FRA)
• Blaise Frédéric, CIRAD-AMIS-AMAP (FRA) ORCID: 0000-0001-7995-4074

Source : Cirad - Agritrop (https://agritrop.cirad.fr/520446/)

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