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"""
.. _multi_slider_widget_example:
Multiple Slider Widgets
~~~~~~~~~~~~~~~~~~~~~~~
Use :func:`~pyvista.Plotter.add_slider_widget` and a class-based callback
to track multiple slider widgets for updating a single mesh.
In this example we simply change a few parameters for the
:func:`pyvista.Sphere` method, but this could easily be applied to any
mesh-generating/altering code.
"""
# sphinx_gallery_start_ignore
# widgets do not work in interactive examples
from __future__ import annotations
PYVISTA_GALLERY_FORCE_STATIC_IN_DOCUMENT = True
# sphinx_gallery_end_ignore
import pyvista as pv
class MyCustomRoutine: # noqa: D101
def __init__(self, mesh):
self.output = mesh # Expected PyVista mesh type
# default parameters
self.kwargs = {
'radius': 0.5,
'theta_resolution': 30,
'phi_resolution': 30,
}
def __call__(self, param, value):
self.kwargs[param] = value
self.update()
def update(self):
# This is where you call your simulation
result = pv.Sphere(**self.kwargs)
self.output.copy_from(result)
# %%
starting_mesh = pv.Sphere()
engine = MyCustomRoutine(starting_mesh)
# %%
p = pv.Plotter()
p.add_mesh(starting_mesh, show_edges=True)
p.add_slider_widget(
callback=lambda value: engine('phi_resolution', int(value)),
rng=[3, 60],
value=30,
title='Phi Resolution',
pointa=(0.025, 0.1),
pointb=(0.31, 0.1),
style='modern',
)
p.add_slider_widget(
callback=lambda value: engine('theta_resolution', int(value)),
rng=[3, 60],
value=30,
title='Theta Resolution',
pointa=(0.35, 0.1),
pointb=(0.64, 0.1),
style='modern',
)
p.add_slider_widget(
callback=lambda value: engine('radius', value),
rng=[0.1, 1.5],
value=0.5,
title='Radius',
pointa=(0.67, 0.1),
pointb=(0.98, 0.1),
style='modern',
)
p.show()
# %%
# .. tags:: widgets
|
