pyvista.plotting.themes.Theme.interpolate_before_map

property Theme.interpolate_before_map: bool

Return or set whether to interpolate colors before mapping.

If the interpolate_before_map is turned off, the color mapping occurs at polygon points and colors are interpolated, which is generally less accurate whereas if the interpolate_before_map is on (the default), then the scalars will be interpolated across the topology of the dataset which is more accurate.

See also Interpolate Before Mapping.

Examples

Enable hidden line removal.

>>> import pyvista as pv

Load a cylinder which has cells with a wide spread

>>> cyl = pv.Cylinder(direction=(0, 0, 1), height=2).elevation()

Common display argument to make sure all else is constant

>>> dargs = dict(
...     scalars='Elevation', cmap='rainbow', show_edges=True
... )

>>> p = pv.Plotter(shape=(1, 2))
>>> _ = p.add_mesh(
...     cyl,
...     interpolate_before_map=False,
...     scalar_bar_args={'title': 'Elevation - interpolated'},
...     **dargs
... )
>>> p.subplot(0, 1)
>>> _ = p.add_mesh(
...     cyl,
...     interpolate_before_map=True,
...     scalar_bar_args={'title': 'Elevation - interpolated'},
...     **dargs
... )
>>> p.link_views()
>>> p.camera_position = [
...     (-1.67, -5.10, 2.06),
...     (0.0, 0.0, 0.0),
...     (0.00, 0.37, 0.93),
... ]
>>> p.show()  

Static Scene

Interactive Scene