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"""
.. _platonic_example:
Platonic Solids
~~~~~~~~~~~~~~~
PyVista wraps the ``vtk.vtkPlatonicSolidSource`` filter as
:func:`pyvista.PlatonicSolid`.
"""
# sphinx_gallery_start_ignore
from __future__ import annotations
PYVISTA_GALLERY_FORCE_STATIC_IN_DOCUMENT = True
# sphinx_gallery_end_ignore
import numpy as np
import pyvista as pv
from pyvista import examples
# %%
# We can either use the generic :func:`PlatonicSolid() <pyvista.PlatonicSolid>`
# and specify the different kinds of solids to generate, or we can use the thin
# wrappers:
#
# * :func:`pyvista.Tetrahedron`
# * :func:`pyvista.Octahedron`
# * :func:`pyvista.Dodecahedron`
# * :func:`pyvista.Icosahedron`
# * :func:`pyvista.Cube` (implemented via a different filter)
#
# Let's generate all the Platonic solids, along with the :func:`teapotahedron
# <pyvista.examples.downloads.download_teapot>`.
kinds = [
'tetrahedron',
'cube',
'octahedron',
'dodecahedron',
'icosahedron',
]
centers = [
(0, 1, 0),
(0, 0, 0),
(0, 2, 0),
(-1, 0, 0),
(-1, 2, 0),
]
solids = [pv.PlatonicSolid(kind, radius=0.4, center=center) for kind, center in zip(kinds, centers)]
# download and align teapotahedron
teapot = examples.download_teapot()
teapot.rotate_x(90, inplace=True)
teapot.rotate_z(-45, inplace=True)
teapot.scale(0.16, inplace=True)
teapot.points += np.array([-1, 1, 0]) - teapot.center
solids.append(teapot)
# %%
# Now let's plot them all.
#
# .. note::
# VTK has known issues when rendering shadows on certain window
# sizes. Be prepared to experiment with the ``window_size``
# parameter. An initial window size of ``(1000, 1000)`` seems to
# work well, which can be manually resized without issue.
p = pv.Plotter(window_size=[1000, 1000])
for ind, solid in enumerate(solids):
# only use smooth shading for the teapot
smooth_shading = ind == len(solids) - 1
p.add_mesh(
solid,
color='silver',
smooth_shading=smooth_shading,
specular=1.0,
specular_power=10,
)
p.view_vector((5.0, 2, 3))
p.add_floor('-z', lighting=True, color='lightblue', pad=1.0)
p.enable_shadows()
p.show()
# %%
# The Platonic solids come with cell scalars that index each face of the
# solids.
|
