download_cloud_dark_matter

download_cloud_dark_matter(load: bool = True) → PointSet | str

Download particles from a simulated dark matter halo.

This dataset contains 32,314 particles.

Parameters:

loadbool, default: True

Load the dataset after downloading it when True. Set this to False and only the filename will be returned.

Returns:

outputpyvista.PointSet | str

DataSet or filename depending on load.

Examples

Download Python source code | Download Jupyter notebook

Download the dark matter cloud and display its representation.

>>> import numpy as np
>>> from pyvista import examples
>>> pc = examples.download_cloud_dark_matter()
>>> pc
PointSet (...)
  N Cells:    0
  N Points:   32314
  X Bounds:   7.451e+01, 7.892e+01
  Y Bounds:   1.616e+01, 2.275e+01
  Z Bounds:   8.900e+01, 9.319e+01
  N Arrays:   0

Plot the point cloud. Color based on the distance from the center of the cloud.

>>> pc.plot(
...     scalars=np.linalg.norm(pc.points - pc.center, axis=1),
...     style='points_gaussian',
...     opacity=0.5,
...     point_size=1.5,
...     show_scalar_bar=False,
...     zoom=2,
... )

Static Scene

Interactive Scene

See also

Cloud Dark Matter Dataset

See this dataset in the Dataset Gallery for more info.

Cloud Dark Matter Dense Dataset

Plotting Point Clouds

Full example using this dataset