Meshes¶

Simple meshes from mesh factory¶

Visualizing meshes¶

Reading meshes from files¶

Mesh generation¶

Dimension of the generated mesh¶

For a start we should clearly distinguish between dimension of gemetric space into which meshis embedded and the topological dimension of the mesh. The geometric dimension, that is number of coordinates a point is always 3. The topological dimension can vary between 1 and 3. As meshes can consist of elements of different topological dimension the topological dimension of a mesh is the highest dimension of its elements. If we denote by \(dim_{\text{Geom}}\) intrinsic dimension of a geometric object and by \(dim_{\text{Mesh}}\) topological dimension of the mesh of the object then we always have:

\[dim_{\text{Mesh}} \leqslant dim_{\text{Geom}}\]

Predefined geometric models¶

Basic mesh data¶

Handling mesh connectivity¶

Building mesh hierarchies¶

Submeshes¶

Geometric transofrmation of meshes¶

Selecting and tagging mesh enetities¶

Selecting nodes¶

Selecting edges¶

Selecting cells¶

Selecting entities per dimension¶