PointSet.sample_over_circular_arc(pointa, pointb, center, resolution=None, tolerance=None, progress_bar=False)#

Sample a dataset over a circular arc.

pointanp.ndarray or list

Location in [x, y, z].

pointbnp.ndarray or list

Location in [x, y, z].

centernp.ndarray or list

Location in [x, y, z].

resolutionint, optional

Number of pieces to divide circular arc into. Defaults to number of cells in the input mesh. Must be a positive integer.

tolerancefloat, optional

Tolerance used to compute whether a point in the source is in a cell of the input. If not given, tolerance is automatically generated.

progress_barbool, optional

Display a progress bar to indicate progress.


Arc containing the sampled data.


Sample a dataset over a circular arc and plot it.

>>> import pyvista
>>> from pyvista import examples
>>> uniform = examples.load_uniform()
>>> uniform["height"] = uniform.points[:, 2]
>>> pointa = [uniform.bounds[1], uniform.bounds[2], uniform.bounds[5]]
>>> pointb = [uniform.bounds[1], uniform.bounds[3], uniform.bounds[4]]
>>> center = [uniform.bounds[1], uniform.bounds[2], uniform.bounds[4]]
>>> sampled_arc = uniform.sample_over_circular_arc(pointa, pointb, center)
>>> pl = pyvista.Plotter()
>>> _ = pl.add_mesh(uniform, style='wireframe')
>>> _ = pl.add_mesh(sampled_arc, line_width=10)
>>> pl.show_axes()