This document is a tutorial on the Gmsh mesh generator. It is aimed towards complete beginners; only some ba- sic knowledge of the Linux. This list is for questions and discussions about Gmsh features, resources, bugs, and so forth. Useful links: Gmsh homepage (for documentation, downloads, etc.) . Gmsh is a finite-element mesh generator developed by Christophe Geuzaine and Gmsh website · Official Gmsh Documentation · Gmsh Tutorials by Dolfyn.

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Specular light color Default value: Enable light source 1 Default value: Indices of surfaces in the geometric model Warning, this feature is still experimental. Light both sides of surfaces leads to slower rendering Default value: Documentxtion are the rules we tried to follow when writing this reference manual.

Fields are supported by all the algorithms except those based on Netgen. Mesh moduleUp: Minimum Y-axis forced value Default value: Loops and conditionalsUp: Maxmium distance, above this distance from the curves, prescribe the maximum mesh sizes.

Horizontal position in pixels of the upper left corner of the statistic window Default value: Make basis representations of a homology space and a cohomology space compatible: Enable light source 4 Default value: Height in pixels of the graphic window Default value: To save all mesh element wether or not physical documentattion are defined, use the Mesh.

Gmsh is copyright C by C. JPEG smoothing between 0 and Default value: The source code and various pre-compiled versions of Gmsh for Windows, Mac and Unix can be downloaded from http: The layers option is defined as above. All element sizes are further constrained by the Mesh. Important gsh about efficiency. Z position of light source 0 Default value: You must make sure that they, too, receive or can get the source code.

When applied to non-Transfinite volumes, TransfQuadTri has no effect on those volumes. Post-processing modulePrevious: Dcumentation learn how to run Gmsh on your computer, see Running Gmsh on your system. Show all entities, if General. StringToName creates a name from the provided string.

Plugin Scal2Vec converts the scalar fields into a vectorial field.

## Gmsh Reference Manual

The last three cases permit to retrieve the coordinates of a given geometry point see Pointsto retrieve the elementary entities making up physical groups, and to retrieve the tags of all physical or elementary points, curves, surfaces or volumes in the model. Screencasts that show how to use the GUI are available on http: Useful for creating perturbation of meshes e.

For ElementNodeData views, there are ncomp times number-of-nodes-per-elements values per element. The value of this field is VIn inside the box, VOut outside the box.

### GetDP: a General Environment for the Treatment of Discrete Problems

Transparency for X3D output Default value: If you want to integrate parts of Gmsh into a closed-source software, or want to sell a modified closed-source version of Gmsh, you will need to obtain a different license. Geometric validity of high-Order triangular finite elements. 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 node 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.

The element is then divided using that node.

Evaluate a metric expression. Distance used to compute the mean value type: Either method results in a structured extrusion with an outer layer of subdivided elements that interface the inner, unmodified elements to the triangle-meshed region boundaries. They have to be given either in the GUI or on the command line see Running Gmsh on your systemand Command-line options. Use exact extrusion formula in interpolations set to 0 to allow geometrical transformations of extruded entities Default value: Gmsh does not provide any Else or similar command at the time of this writing.

Hide all entities, if General.