sknano.utils.geometric_shapes.Ellipsoid¶

class sknano.utils.geometric_shapes.Ellipsoid(center=None, a=None, b=None, c=None)[source][source]¶

Abstract data structure representing an ellipsoid.

New in version 0.3.0.

The general ellipsoid is a quadratic surface with is given in Cartesian coordinates by:

\[\frac{x^2}{a^2} + \frac{y^2}{b^2} + \frac{z^2}{c^2} = 1\]

Parameters:

Parameters:	center : sequence or `Point` Either a 3-tuple of floats or an instance of the `Point` class specifying the \((x,y,z)\) coordinates of the `Ellipsoid` center. a, b, c : float, optional Semi-principal axes \(a, b, c\) of axis-aligned `Ellipsoid`

center : sequence or Point

Either a 3-tuple of floats or an instance of the Point class specifying the \((x,y,z)\) coordinates of the Ellipsoid center.

a, b, c : float, optional

Semi-principal axes \(a, b, c\) of axis-aligned Ellipsoid

Attributes

Methods

`contains_point`(point)	Check if point is contained within volume of `Ellipsoid`.
`rotate`([angle, rot_axis, anchor_point, ...])	Rotate `GeometricRegion` Points and Vectors.
`translate`(t[, fix_anchor_points])	Translate `GeometricRegion`s Points and Vectors by `Vector` t.
`update_region_limits`()