COMSOL 6.2 - BezierPolygon

BezierPolygon

Create a curve or solid polygon consisting of Bézier segments in 2D or 3D.

Syntax

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

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>,"BezierPolygon") to create a Bézier polygon or a line segment. The following properties are available:

Table 3-29: Valid Property/Value Pairs for BezierPolygon.
Property	Value	Default	Description
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.
degree	int[] \| int	1	Degree of Bézier segments.
p	double[][]		Control points.
selresult	on \| off	off	Create selections of all resulting objects.
selresultshow	all \| obj \| dom \| bnd \| edg \| pnt \| off	dom in 2D edg in 3D.	Show selections, if selresult is on, in physics, materials, and so on; in part instances; or in 3D from a plane geometry. obj is not available in a component’s geometry. dom, bnd, and edg are not available in all features.
type	solid \| open \| closed	solid (2D) open (3D)	Object type. solid is not available in 3D.
w	double[]		Weights.
workplanesrc	this \| part-instance feature	this	Part-instance feature to take the work plane from (in 3D only).
workplane	xyplane \| work-plane feature	xyplane	Work-plane feature that defines the coordinate system (in 3D only). The default, xyplane, is the global Cartesian coordinate system.

If type is open or closed, a curve consisting of line, quadratic, or cubic rational Bézier segments is constructed. If type is solid, the solid enclosed by such a closed polygon is constructed. If type is closed or solid, but the first and last control points are different, an extra linear segment is added to close the curve.

The degree of the nth segment is degree[n], and it must be 1 (linear), 2 (quadratic), or 3 (cubic). The nth segment has degree[n]+1 control points and weights. The weights are stored consecutively in the array w, which has length degree[0]+...+degree[N-1]+N, where N is the number of segments. The ith coordinates of the control points are stored consecutively in the array p[i]. Adjacent segments share the common control point, which means that p[i] has length degree[0]+...+degree[N-1]+1.

For a linear or cubic segment, the default weights are 1. For a quadratic segment, the default weights are 1, 1/