BlockAttributes.opacity

property BlockAttributes.opacity: float | None

Get or set the opacity of a block.

If opacity has not been set this will be None.

Examples

Download Python source code | Download Jupyter notebook

Change the opacity of the second block of the dataset.

Note how the zero index is the entire multiblock, so we have to add 1 to our indexing to access the right block.

>>> import pyvista as pv
>>> dataset = pv.MultiBlock([pv.Cube(), pv.Sphere(center=(0, 0, 1))])
>>> pl = pv.Plotter()
>>> actor, mapper = pl.add_composite(dataset)
>>> mapper.block_attr[2].opacity = 0.5
>>> pl.show()

Static Scene

Interactive Scene