mesh.Mesh.extrude

Mesh.extrude(div=1, dir=0, length=1.0, degree=1, fix=True, eltype=None)

Extrude a Mesh along a straight line.

The Mesh is extruded over a given length in the given direction.

Parameters

div: smartseed

Specifies how the extruded direction will be subdivided in elements. It can be anything that is acceptable as input for smartSeed().

dir: int (0,1,2) or float array_like (3,)

The direction of the extrusion: either a global axis number (0 (X-axis), 1 (Y-axis) and 2 (Z-axis)) or a direction vector.

length: float

The length of the extrusion, measured along the direction dir.

degree: int

The degree of the connection. Currently only degree 1 and 2 are supported.

fix: bool

If True (default), elements with negative volumes are automatically corrected after connecting the meshes. This is done by calling fix_volumes(), which reverses the orientation of elements that have negative volume to ensure positive volume.

eltype: str or ElementType, optional

The element type of the constructed hypermesh. Normally, this is set automatically from the base element type and the connection degree. If a different element type is specified, a final conversion to the requested element type is attempted (using convert()).

Returns

Mesh

A Mesh obtained by extruding the input Mesh over the given length in direction dir, subdividing this length according to the seeds generated by smartSeed(div).

See Also

sweep(): extrusion along a general path

Examples

>>> M = Mesh(eltype='line3').extrude(1, dir=1, length=1.0, degree=2)
>>> print(M)
Mesh: n_nodes: 9, n_elems: 1, plexitude: 9, level: 2, eltype: quad9
  BBox: [0. 0. 0.], [1. 1. 0.]
  Size: [1. 1. 0.]
  Length: 4.0  Area: 1.0