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"""
.. _rotate_example:
Rotations
~~~~~~~~~
Rotations of a mesh about its axes using
:meth:`~pyvista.DataObjectFilters.rotate_x`,
:meth:`~pyvista.DataObjectFilters.rotate_y`, and
:meth:`~pyvista.DataObjectFilters.rotate_z`.
In this model, the x axis is from the left to right;
the y axis is from bottom to top; and the z axis emerges from the
image. The camera location is the same in all four images.
"""
# sphinx_gallery_thumbnail_number = 3
from __future__ import annotations
import pyvista as pv
from pyvista import examples
# %%
# Define camera and axes
# ++++++++++++++++++++++
#
# Define camera and axes. Setting axes origin to ``(3.0, 3.0, 3.0)``.
mesh = examples.download_cow()
mesh.points /= 1.5 # scale the mesh
camera = pv.Camera()
camera.position = (30.0, 30.0, 30.0)
camera.focal_point = (5.0, 5.0, 5.0)
axes = pv.Axes(show_actor=True, actor_scale=2.0, line_width=5)
axes.origin = (3.0, 3.0, 3.0)
# %%
# Original Mesh
# +++++++++++++
#
# Plot original mesh. Add axes actor to Plotter.
p = pv.Plotter()
p.add_text('Mesh', font_size=24)
p.add_actor(axes.actor)
p.camera = camera
p.add_mesh(mesh)
p.show()
# %%
# Rotation about the x axis
# +++++++++++++++++++++++++
#
# Plot the mesh rotated about the x axis every 60 degrees.
# Add the axes actor to the Plotter and set the axes origin to the point of rotation.
p = pv.Plotter()
p.add_text('X-Axis Rotation', font_size=24)
p.add_actor(axes.actor)
p.camera = camera
for i in range(6):
rot = mesh.rotate_x(60 * i, point=axes.origin, inplace=False)
p.add_mesh(rot)
p.show()
# %%
# Rotation about the y axis
# +++++++++++++++++++++++++
#
# Plot the mesh rotated about the y axis every 60 degrees.
# Add the axes actor to the Plotter and set the axes origin to the point of rotation.
p = pv.Plotter()
p.add_text('Y-Axis Rotation', font_size=24)
p.camera = camera
p.add_actor(axes.actor)
for i in range(6):
rot = mesh.rotate_y(60 * i, point=axes.origin, inplace=False)
p.add_mesh(rot)
p.show()
# %%
# Rotation about the z axis
# +++++++++++++++++++++++++
#
# Plot the mesh rotated about the z axis every 60 degrees.
# Add axes actor to the Plotter and set the axes origin to the point of rotation.
p = pv.Plotter()
p.add_text('Z-Axis Rotation', font_size=24)
p.camera = camera
p.add_actor(axes.actor)
for i in range(6):
rot = mesh.rotate_z(60 * i, point=axes.origin, inplace=False)
p.add_mesh(rot)
p.show()
# %%
# Rotation about a custom vector
# ++++++++++++++++++++++++++++++
#
# Plot the mesh rotated about a custom vector every 60 degrees.
# Add the axes actor to the Plotter and set axes origin to the point of rotation.
p = pv.Plotter()
p.add_text('Custom Vector Rotation', font_size=24)
p.camera = camera
p.add_actor(axes.actor)
for i in range(6):
rot = mesh.copy()
rot.rotate_vector(vector=(1, 1, 1), angle=60 * i, point=axes.origin)
p.add_mesh(rot)
p.show()
# %%
# .. tags:: filter
|
