CellType.n_edges

property CellType.n_edges: int

Return the number of edges defined by this cell type.

Added in version 0.48.

Raises:

ValueError

If the number of edges cannot be determined without a concrete instance. Polygon, polyhedron, triangle strip, and convex point set will all raise an error.

See also

n_points, n_faces

pyvista.Cell.n_edges

Examples

Download Python source code | Download Jupyter notebook

QUAD has a fixed number of edges.

>>> import pyvista as pv
>>> pv.CellType.QUAD.n_edges
4

POLYGON has a variable number of edges and raises a ValueError.

>>> try:
...     pv.CellType.POLYGON.n_edges
... except ValueError as error:
...     print(error)
Cannot determine number of edges for 'POLYGON' without a concrete cell instance.

Zero- and one-dimensional cell types have no edges.

>>> pv.CellType.VERTEX.n_edges
0

>>> pv.CellType.LINE.n_edges
0