grains.geometry.TriMesh

class grains.geometry.TriMesh(vertices, cells)

Unstructured triangular mesh.

Vertices and cells are both stored as numpy arrays. This makes the simple mesh manipulations easy and provides interoperability with the whole scientific Python stack.

Parameters

• vertices (ndarray) – 2D numpy array with 2 columns, each row corresponding to a vertex, and the two columns giving the Cartesian coordinates of the vertex.

• cells (ndarray) – Cell-vertex connectivities in a 2D numpy array, in which each row corresponds to a cell and the columns are the vertices of the cells. It is assumed that all the cells have the same number of vertices.

__init__(vertices, cells)

Error checking

Methods

__init__(vertices, cells)
associate_field(vertex_values[, name])	Associates a scalar, vector or tensor field to the nodes.
cell_area(cell)	Computes the area of a cell.
cell_set_area(cell_set)	Computes the area of a cell set.
cell_set_to_mesh(cell_set)	Creates a mesh from a cell set.
change_vertex_numbering(orientation[, inplace])	Changes cell vertex numbering.
create_cell_set(name, cells)	Forms a group from a set of cells.
create_vertex_set(name, vertices)	Forms a group from a set of vertices.
get_boundary()	Extracts the boundary of the mesh.
get_edges()	Constructs edge-cell connectivities of the mesh.
plot(*args, **kwargs)	Plots the mesh.
plot_field(component, *args[, show_mesh])	Plots a field on the mesh.
rotate(angle[, point, inplace])	Rotates a 2D mesh about a given point by a given angle.
sample_mesh(sample[, param])	Provides sample meshes.
scale(factor[, inplace])	Scales the geometry by modifying the coordinates of the vertices.
write_inp(filename)	Writes the mesh to an Abaqus .inp file.

Attributes

plot_options