COMSOL Multiphysics™

ellipsoid2, ellipsoid3
Purpose
ellipsoid2, ellipsoid3
Construction function for ellipsoid geometry object.
Syntax
Description
obj = ellipsoid3
obj = ellipsoid2
obj = ellipsoid3(a,b,c)
obj = ellipsoid2(a,b,c)
obj = ellipsoid3(a,b,c,...)
obj = ellipsoid2(a,b,c,...)
obj = ellipsoid3 creates a solid ellipsoid geometry object with center at the
origin and semi-axes equal to 1. ellipsoid3 is a subclass of solid3.
obj = ellipsoid3(a,b,c,...) creates a solid ellipsoid object with semi-axes a,
b, and c. a, b, and c are positive real scalars, or strings that evaluate to positive real
scalars, given the evaluation context provided by the property Const.
The functions ellipsoid3/ellipsoid2 accept the following property/values:
TABLE 1-18: VALID PROPERTY/VALUE PAIRS
PROPERTY VALUE DEFAULT DESCRIPTION
Axis
Vector of
reals or cell
array of
strings
[0 0] Local z-axis of the object
Const Cell array of {} Evaluation context for string inputs
strings
Pos
Vector of [0 0] Position of the object
reals or cell
array of
strings
Rot real or string 0 Rotational angle about Axis (radians)
Axis sets the local z-axis, stated either as a directional vector of length 3, or as a
1-by-2 vector of spherical coordinates. Axis is a vector of real scalars, or a cell array
of strings that evaluate to real scalars, given the evaluation context provided by the
property Const. See gencyl3 for more information on Axis.
Pos sets the center of the object. Pos is a vector of real scalars, or a cell array of
strings that evaluate to real scalars, given the evaluation context provided by the
property Const.
Rot is an intrinsic rotational angle for the object about its local z-axis provided by
the property Axis. Rot is a real scalar, or a string that evaluates to a real scalar given
91