sfepy.discrete.fem.geometry_element module
GeometryElement describes the geometric entities of a finite element mesh.
Notes
- geometry_data: surface facets are assumed to be of the same kind for
each geometry element - wedges or pyramides are not supported.
- the orientation is a tuple:
(root1, vertices of direction vectors, swap from, swap to, root2, ...)
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class sfepy.discrete.fem.geometry_element.GeometryElement(name)[source]
The geometric entities of a finite element mesh.
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create_surface_facet()[source]
Create a GeometryElement instance corresponding to this instance
surface facet.
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get_conn_permutations()[source]
Get all possible connectivity permutations corresponding to different
spatial orientations of the geometry element.
-
get_edges_per_face()[source]
Return the indices into self.edges per face.
-
get_grid(n_nod)[source]
Get a grid of n_nod interpolation points, including the geometry
element vertices. The number of points must correspond to a valid
number of FE nodes for each geometry.
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get_interpolation_name()[source]
Get the name of corresponding linear interpolant.
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get_surface_entities()[source]
Return self.vertices in 1D, self.edges in 2D and self.faces in 3D.
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sfepy.discrete.fem.geometry_element.create_geometry_elements(names=None)[source]
Utility function to create GeometryElement instances.
Parameters: | names : str, optional
The names of the entity, one of the keys in geometry_data
dictionary. If None, all keys of geometry_data are used.
|
Returns: | gels : dict
The dictionary of geometry elements with names as keys.
|
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sfepy.discrete.fem.geometry_element.setup_orientation(vecs_tuple)[source]