Footnotes

(1)

For example, in three dimensions:

• the triangles discretizing a surface will be forced to be faces of tetrahedra in the final 3D mesh only if the surface is part of the boundary of a volume;
• the line elements discretizing a curve will be forced to be edges of tetrahedra in the final 3D mesh only if the curve is part of the boundary of a surface, itself part of the boundary of a volume;
• a single node discretizing a point in the middle of a volume will be forced to be a vertex of one of the tetrahedra in the final 3D mesh only if this point is connected to a curve, itself part of the boundary of a surface, itself part of the boundary of a volume...

(2)

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

(3)

The affectation operators are introduced in General commands.

(4)

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

(5)

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

(6)

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.

(7)

Nearly all the interactive commands have shortcuts: see Keyboard shortcuts, or select `Help->Keyboard Shortcuts' in the menu.

(8)

If you compile Gmsh without the graphical user interface, i.e., with ./configure --disable-gui, this is the only mode you have access to.