pyransame.random_line_points

pyransame.random_line_points(mesh: DataSet, n: int = 1, weights: str | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | bool | int | float | complex | bytes | _NestedSequence[bool | int | float | complex | str | bytes] | None = None) → ndarray

Generate random points on lines.

Supported cell types:

• Line

• Polyline

Parameters:

meshpyvista.DataSet

The mesh for which to generate random points. Must have cells.

nint, default: 1

Number of random points to generate.

weightsstr, or array_like, optional

Weights to use for probability of choosing points inside each cell.

If a str is supplied, it will use the existing cell data on mesh.

Returns:

pointsnp.ndarray

(n, 3) points that exist inside cells on mesh.

Examples

>>> import pyransame
>>> import pyvista as pv
>>> p = [
...       [0., 0., 0.],
...       [1., 0., 0.],
...       [1., 2., 0.]
... ]
>>> mesh = pv.PolyData(p, lines=[2, 0, 1, 2, 1, 2])
>>> points = pyransame.random_line_points(mesh, n=25)

Now plot result.

>>> pl = pv.Plotter()
>>> _ = pl.add_mesh(mesh, color='tan')
>>> _ = pl.add_points(points, render_points_as_spheres=True, point_size=10.0, color='red')
>>> pl.view_xy()
>>> pl.show()

Static Scene

Interactive Scene