COMSOL 6.2 - Helix

Helix

Create a solid, surface, or curve helix (coil) with a circular cross section in 3D.

Syntax

model.component(<ctag>).geom(<tag>).create(<ftag>,"Helix");

model.component(<ctag>).geom(<tag>).feature(<ftag>).set(property,<value>);

model.component(<ctag>).geom(<tag>).feature(<ftag>).getType(property);

model.component(<ctag>).geom(<tag>).feature(<ftag>).setAttribute(attribute,<value>);

model.component(<ctag>).geom(<tag>).feature(<ftag>).getAttribute(attribute);

Description

Use model.component(<ctag>).geom(<tag>).create(<ftag>,"Helix") to create a helix. The following properties are available:

Table 3-86: Valid Property/Value Pairs.
Property	Value	Default	Description
axialpitch	double	0.3	Axial pitch.
axis	double[]	{0,0,1}	Direction of the helix axis. Vector has length 3 if axistype is cartesian, and length 2 if axistype is spherical.
axistype	x \| y \| z \| cartesian \| spherical	z	Coordinate system used for axis. The value is synchronized with axis.
chirality	right \| left	right	Chirality.
color	none \| custom \| integer between 1 and the number of colors in the current theme	none	The color of the selection, either given as an integer indicating a color in the color theme, or as a custom color in the customcolor property. Coloring is only available when selresult in active.
contributeto	String	none	Tag of cumulative selection to contribute to.
customcolor	RGB-triplet	Next available theme color	The color to use. Active when color is set to custom.
endcaps	paraaxis \| perpaxis \| perpspine	paraaxis	Direction of end caps.
grep	bezier \| spline	spline	Geometry representation.
pos	double[]	{0,0,0}	Position of the object.
radialpitch	double	0	Radial pitch.
rmaj	double	1	Major radius.
rmin	double	0.1	Minor radius.
rot	double	0	Rotational angle about axis.
rtol	double	1e-4	Relative tolerance.
selresult	on \| off	off	Create selections of all resulting objects.
selresultshow	all \| obj \| dom \| bnd \| edg \| pnt \| off	dom	Show selections, if selresult is on, of resulting objects in physics, materials, and so on, or in part instances. obj is not available in a component’s geometry. dom, bnd, and edg are not available in all features.
turns	double	3	Number of turns.
type	solid \| surface	solid	Object type.
twistcomp	on \| off	on	Twist compensation.
workplanesrc	this \| part-instance feature	this	Part-instance feature to take the work plane from.
workplane	xyplane \| work-plane feature	xyplane	Work-plane feature that defines the coordinate system. The default, xyplane, is the global Cartesian coordinate system.