simnibs.Elements¶

class simnibs.Elements(triangles=None, tetrahedra=None, points=None, lines=None)¶

Mesh elements.

Can only handle triangles and tetrahedra!

Parameters:

(optional) (triangles) – List of nodes composing each triangle
tetrahedra(optional) ((Nx3) ndarray) – List of nodes composing each tetrahedra

elm_number¶

element ID (u from 1 till nr)

elm_type¶

elm-type (2=triangle, 4=tetrahedron, etc)

tag1¶

first tag for each element

tag2¶

second tag for each elenent

node_number_list¶

4xnumber_of_element matrix of the nodes that constitute the element. For the triangles, the fourth element = -1

Number or elemets

Notes

Node and element count starts at 1!

Methods

`__init__`([triangles, tetrahedra, points, lines])
`add_triangles`(triangles, tag)	Add triangles to mesh in-place
`connected_components`([element_indexes])	Finds connected components
`find_adjacent_tetrahedra`()	Find the tetrahedra adjacent (sharing a face) to each element
`find_all_elements_with_node`(node_nr)	Finds all elements that have a given node
`find_neighbouring_nodes`(node_nr)	Finds the nodes that share an element with the specified node
`find_th_with_node`(node_nr)	Finds tetrahedra that have a given node
`get_faces`([tetrahedra_indexes])	Creates a list of nodes in each face and a list of faces in each tetrahedra
`get_outside_faces`([tetrahedra_indexes])	Creates a list of nodes in each face that are in the outer volume
`get_surface_outline`([triangle_indices])	returns the outline of a non-closed surface
`node_elm_adjacency`()	Generates a sparse matrix with element indexes adjacent to each node
`nodes_with_tag`(tags)	Gets all nodes indexes that are part of at least one element with the given tags

Attributes