Footnotes

(1)

Note that mixing structured volume grids with unstructured volume grids generated with the default 3D Delaunay algorithm can result, in certain cases, to non-conform surface meshes on their shared boundary. If this happens, you may consider using the frontal algorithm for the unstructured part.

(2)

Nearly all the interactive commands have shortcuts: see Keyboard shortcuts, or select `Help->Keyboard Shortcuts' in the menu. For example, to quickly save a mesh, you can press Ctrl+Shift+s.

(3)

If you compile Gmsh without the GUI, this is the only mode you have access to.

(4)

The affectation operators are introduced in General commands.

(5)

For compatibility with GetDP (http://www.geuz.org/getdp/), parentheses can be replaced by brackets [].

(6)

For compatibility purposes, the behavior of newl, news, newv and newreg can be modified with the Geometry.OldNewReg option (see section Geometry options list).

(7)

R. A. Dwyer, A simple divide-and-conquer algorithm for computing Delaunay triangulations in O(n log n) expected time, In Proceedings of the second annual symposium on computational geometry, Yorktown Heights, 2–4 June 1986.

(8)

N. P. Weatherill, The integrity of geometrical boundaries in the two-dimensional Delaunay triangulation, Commun. Appl. Numer. Methods 6(2), pp. 101–109, 1990.

(9)

C. Geuzaine and J.-F. Remacle, Gmsh: a three-dimensional finite element mesh generator with built-in pre- and post-processing facilities, International Journal for Numerical Methods in Engineering, Accepted for publication, 2009.

(10)

P.-L. George and P. Frey, Mesh generation, Hermes, Lyon, 2000.

(11)

S. Rebay, Efficient unstructured mesh generation by means of Delaunay triangulation and Bowyer-Watson algorithm, J. Comput. Phys. 106, pp. 25–138, 1993.

(12)

H. Si, Tetgen: a quality tetrahedral mesh generator and three-dimensional Delaunay triangulator, 2004.

(13)

J. Schoeberl, Netgen, an advancing front 2d/3d-mesh generator based on abstract rules, Comput. Visual. Sci., 1, pp. 41–52, 1997.

(14)

This behaviour was introduced in Gmsh 2.0. In older versions, both the elementary and the physical region numbers would be set to the identification number of the elementary region.