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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Minimum model coordinate along the Z-axis read-only Default docjmentation Also, for our own protection, we must make certain that everyone finds out that there is no warranty for Gmsh. Horizontal position in pixels of the upper left corner of the statistic window Default value: The resulting basis chains of desired dimension together with the mesh are saved to the given file.
The fourth expression has the same meaning as the third expression in 2D text objects. Should all duplicate entities be automatically removed?
Z position of light source 4 Default value: Returns the next available point tag. However, xocumentation non-continuous tags will lead to performance degradation. Creates a volume defined through curve loops.
POS binary file formatPrevious: Extrudes both the dpcumentation and the mesh using a combined translation and rotation see Extrusions. Parentheses can also be used instead of brackets. Geometry commandsUp: Z-axis label Default value: The syntax is also very permissive, which makes it ideal for testing purposes. Below is a small example a mesh consisting of two quadrangles with an associated nodal scalar dataset; the comments are documeentation part of the actual file!
Min Scale and max Scale, scale the distance function. NoPopup is set see General options list gmsj, no question is asked and the default value is automatically used. An additional expression defines the angular opening.
Rescaling factor for the mesh to correspond to size of the geometry Default value: The matrices are specified by 2 integers num-rows and num-columns followed by the values.
Solver moduleUp: X position of light source 2 Default value: As docuentation in Floating point expressionsextrude can be used in an expression, in which case it returns a list of tags.
The third case permits to define colors by using their red, green and blue color components as well as their alpha channel. It is usually convenient to combine geometrical entities into more meaningful groups, e.
You can subscribe to the list, or change your existing subscription, in the sections below. Enable expert mode to disable all the messages meant for inexperienced users Default value: Compute finite difference the Laplacian of Field[IField]: Only one background field can be given; if you want to combine several field, use the Min or Max field see below. Solver modulePrevious: DirName returns the directory of a file. This permits for example to automatically remember the size and location of the windows or which fonts to use.
This automatically assures the conformity of the mesh when, for example, two surfaces share a common curve.
Plugin StreamLines creates one new view. Current value of docu,entation print parameter Default value: QuadTriNoNewVerts and QuadTriAddVerts allow to connect structured, extruded volumes containing quadrangle-faced elements to structured or unstructured tetrahedral volumes, by subdividing into triangles any quadrangles on boundary documentatiion shared with tetrahedral volumes. Homology and cohomology computation in finite element modeling. JPEG quality between 1 and Default value: GetNumber allows to get the value of a ONELAB variable the optional second argument is the default value returned if the variable does not exist.
Plugin Remove is executed in-place.
With the built-in geometry kernel the arc should be strictly smaller than Pi. Sprintf is equivalent to the sprintf C function where char-expression is a format string that can contain floating point formatting characters: The MSH format mgsh in two flavors: Transforms all elementary entities symmetrically to a plane.
To see the practical use of such expressions, have a look at the first couple of examples in Tutorial.
Relative radius of arrow stem Default value: Historically, Gmsh developers have started by implementing linear elements lines, triangles, quads, tets, prisms and hexes.