# Examples from pyvista.MultiBlock
# ================================

import pyvista as pv

# Create an empty composite dataset.
blocks = pv.MultiBlock()

# Add a dataset to the collection.
sphere = pv.Sphere()
blocks.append(sphere)

# Add a named block.
blocks['cube'] = pv.Cube()

# Instantiate from a list of objects.
data = [
    pv.Sphere(center=(2, 0, 0)),
    pv.Cube(center=(0, 2, 0)),
    pv.Cone(),
]
blocks = pv.MultiBlock(data)
blocks.plot()

# Instantiate from a dictionary.
data = {
    'cube': pv.Cube(),
    'sphere': pv.Sphere(center=(2, 2, 0)),
}
blocks = pv.MultiBlock(data)
blocks.plot()

# Iterate over the collection.
for name in blocks.keys():
    block = blocks[name]

for block in blocks:
    # Do something with each dataset
    surf = block.extract_surface(algorithm=None)

# ----------------------------------------------------------------------
# Generated by sphinx-examples-as-code https://github.com/pyvista/sphinx-examples-as-code