pyvista.DataSetAttributes.set_array

DataSetAttributes.set_array(data: ArrayLike[float], name: str, deep_copy=False) → None

Add an array to this object.

Use this method when adding arrays to the DataSet. If needed, these arrays can later be assigned to become the active scalars, vectors, normals, or texture coordinates with:

• active_scalars_name

• active_vectors_name

• active_normals_name

• active_texture_coordinates_name

Parameters:

dataArrayLike[float]

Array of data.

namestr

Name to assign to the data. If this name already exists, it will be overwritten.

deep_copybool, optional

When True makes a full copy of the array.

Notes

You can simply use the [] operator to add an array to the dataset. Note that this will automatically become the active scalars.

Examples

Add a point array to a mesh.

>>> import pyvista as pv
>>> mesh = pv.Cube()
>>> data = range(mesh.n_points)
>>> mesh.point_data.set_array(data, 'my-data')
>>> mesh.point_data['my-data']
pyvista_ndarray([0, 1, 2, 3, 4, 5, 6, 7])

Add a cell array to a mesh.

>>> cell_data = range(mesh.n_cells)
>>> mesh.cell_data.set_array(cell_data, 'my-data')
>>> mesh.cell_data['my-data']
pyvista_ndarray([0, 1, 2, 3, 4, 5])

Add field data to a mesh.

>>> field_data = range(3)
>>> mesh.field_data.set_array(field_data, 'my-data')
>>> mesh.field_data['my-data']
pyvista_ndarray([0, 1, 2])