pyransame.random_line_dataset

pyransame.random_line_dataset(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) → PolyData

Generate random points on lines with sampled data.

Supported cell types:

• Line

• Polyline

All cells must be convex.

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:

pointspv.PolyData

(n, 3) points that exist inside cells on mesh and with sampled data.

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])
>>> mesh['y'] = mesh.points[:, 1]
>>> points = pyransame.random_line_dataset(mesh, n=25)

Now plot result.

>>> pl = pv.Plotter()
>>> _ = pl.add_mesh(mesh, color='tan')
>>> _ = pl.add_points(
...     points,
...     scalars='y',
...     render_points_as_spheres=True,
...     point_size=10.0,
...     scalar_bar_args={"vertical": True}
... )
>>> pl.view_xy()
>>> pl.show()

Static Scene

Interactive Scene