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The core business of IGG research group (https://lsiit.u-strasbg.fr/igg-en) of the LSIIT Lab at the University of Strasbourg is geometric modeling conjugated under all its aspects: modeling, construction and proofs in geometry. The geometric and topological modeling sub-team studies the combinatorial models which are the common basis for the whole team. Some people also work on the solving of geometric constraints which is a complementary point of view, especially the embeddings. And finally the specifications and proofs in geometry topic makes geometric modeling benefit from the latest advances in specifications and proofs. The other theme of the group is visualization, interaction and simulation. It splits in two operations - simulation, visualization and rendering and 3D Interaction - which are complementary in the sense that simulations require both interaction and visualization.

Also, the program RéVA (2002-1008) allowed the group to consolidate its expertise in virtual reality and simulation. Theme 2 - visualization, interaction and simulation - focuses on those more recent topics which involve two of the four professors of the group, six of its associate professors and a research engineer. A virtual reality device - of workbench type - welcomes the developments of this theme's participants. A research engineer works on the ressources' centralization, especially through the development of a virtual reality software platform and its scientific applications focused on medical applications.

History

IGG group is the first research group in computer science - associated to the CNRS - that was created in Strasbourg by Jean-François Dufourd and Jean Françon, more than twenty years ago.

Since fifteen years this research group is composed of about ten teniors. In 10 years, since Dominique Bechmann came at its head, the group has been almost completey renewed : only Dominique Bechmann, Jean-François Dufourd and Pascal Schreck - who were associate professors (AP) at the time - were already in the team in 1997.

Several events, such as the departure of many researchers for laboratories in Poitiers (Eric Andrès PR, Yves Bertrand PR, Laurent Fuchs AP, Pascal Lienhardt PR), Limoges (Djamchid Ghanzanfarpour PR) and Clermont-Ferrand (Jean-Pierre Réveilles PR), and such as the integration of discrete geometry and mathematical morphology in the MIV group, the return of Jean-Michel Dischler from Limoges on a professor (PR) position in 2001, and the hiring of eight new associate professors during the time period of 2005-2008, have largely recomposed this team and redrawn its scientific contours.