Section: New Results

Scientific Visualization and scientific computing

Participants : Samuel Hornus, Bruno Jobard, Bruno Lévy, Romain Merland, Vincent Nivoliers, Jeanne Pellerin, Nicolas Ray, Dmitry Sokolov, Rhaleb Zayer.

Figure 7. Unified visualization of atomic bounds and molecular surfaces.

Figure 8. Left: flow lines between injectors (black squares) and well (center square). Right: Adapted Voronoi grid.

Figure 9. Fitting a spline surface (bottom) to a triangle mesh (top) starting from an initial template (center). Data courtesy of Distene.

• Molecular visualization: We continued the development of our Micromegas software, and developed several improvements [13] , [14] (see Figure 7 ).

• Geo-Modeling and geo-visualization: In the frame of our partnership with the Gocad consortium, we developped an evaluation of multi-valued data depiction techniques [22] . We also developed several meshing tools dedicated to the numerical simulation of oil exploitation [28] , [26] , [25] (see Figure 8 ).

• Reverse engineering: We developed methods to convert mesh surfaces and point sets into parametric splines, using either a global parameterization technique [18] or an approximation of surface-to-surface distance based on Voronoi diagrams [27] (see Figure 9 ).