hedge :: mesh :: Mesh :: Class Mesh

Class Mesh

Information about the geometry and connectivity of a finite element mesh. (Note: no information about the discretization is stored here.)

Instance Methods

[hide private]

both_interfaces(self)

source code

bounding_box(self)

source code

element_adjacency_graph(self)
Return a dictionary mapping each element id to a list of adjacent element ids.

source code

Inherited from pytools.Record: __eq__, __getstate__, __init__, __ne__, __repr__, __setstate__, copy

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __str__

Instance Variables

[hide private]

elements
list of Element instances

interfaces
a list of pairs:

periodic_opposite_faces
a mapping of the form:

periodic_opposite_vertices
a mapping of the form:

periodicity
A list of tuples (minus_tag, plus_tag) or None indicating the tags of the boundaries to be matched together as periodic.

points
list of Pylinear vectors of node coordinates

tag_to_boundary
a mapping of the form:

tag_to_elements
a mapping of the form element_tag -> [element instances]

Properties

[hide private]

dimensions

Inherited from object: __class__

Instance Variable Details

[hide private]

interfaces

a list of pairs:

     ((element instance 1, face index 1), (element instance 2, face index 2))

 enumerating elements bordering one another.  The relation "element 1 touches 
 element 2" is always reflexive, but this list will only contain one entry
 per element pair.

periodic_opposite_faces

a mapping of the form:

     (face_vertex_indices) -> 
       (opposite_face_vertex_indices), axis

 This maps a face to its periodicity-induced opposite.

periodic_opposite_vertices

a mapping of the form:

     vertex_index -> [(opposite_vertex_index, axis), ...]

 This maps one vertex to a list of its periodicity-induced 
 opposites.

periodicity

A list of tuples (minus_tag, plus_tag) or None indicating the tags of the boundaries to be matched together as periodic. There is one tuple per axis, so that for example a 3D mesh has three tuples.

tag_to_boundary

a mapping of the form:

     boundary_tag -> [(element instance, face index)])

 The boundary tag TAG_NONE always refers to an empty boundary.
 The boundary tag TAG_ALL always refers to the entire boundary.

tag_to_elements

a mapping of the form element_tag -> [element instances]

The boundary tag TAG_NONE always refers to an empty domain. The boundary tag TAG_ALL always refers to the entire domain.

Property Details

[hide private]

dimensions

Get Method:: unreachable.dimensions(self)