COMSOL Multiphysics™

torus2, torus3
Purpose
torus2, torus3
Create torus geometry object.
Syntax
Description
t3 = torus3
t2 = torus2
t3 = torus3(rmaj,rmin)
t2 = torus2(rmaj,rmin)
t3 = torus3(rmaj,rmin,phi)
t2 = torus2(rmaj,rmin,phi)
t3 = torus3(rmaj,rmin,phi,...)
t2 = torus2(rmaj,rmin,phi,...)
t3 = torus3 creates a solid torus object with directrix radius 1 and generatrix radius
0.5 about the z-axis. torus3 is a subclass of solid3.
t3 = torus3(rmaj,rmin) creates a solid torus with directrix radius rmaj and
generatrix radius rmin, where rmaj>rmin.
t3 = torus3(rmaj,rmin,phi) additionally sets the revolution angle phi of the
torus.
The functions torus3/torus2 accept the following property/values:
TABLE 1-48: 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 bottom surface.
reals or cell
array of
strings
Rot real or string 0 Rotational angle about Axis (radians).
t3 = torus2(...) works similarly to above, but creates a surface torus object.
torus2 is a subclass of face3.
Torus objects have the following properties:
TABLE 1-49: TORUS OBJECT PROPERTIES
PROPERTY
rmaj
rmin
DESCRIPTION
Directrix.
Generatrix.
400 | CHAPTER 1: COMMAND REFERENCE