COMSOL 6.4 - UnionSelection, IntersectionSelection, DifferenceSelection, ComplementSelection

UnionSelection, IntersectionSelection, DifferenceSelection, ComplementSelection

Combine selections of entities using a Boolean operation.

Syntax

model.component(<ctag>).mesh(<tag>).create(<ftag>,"ComplementSelection");

model.component(<ctag>).mesh(<tag>).create(<ftag>,"DifferenceSelection");

model.component(<ctag>).mesh(<tag>).create(<ftag>,"IntersectionSelection");

model.component(<ctag>).mesh(<tag>).create(<ftag>,"UnionSelection");

model.component(<ctag>).mesh(<tag>).feature(<ftag>).selection();

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

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

Description

Use UnionSelection to get all entities that belong to at least one of the input selections. Use IntersectionSelection to get all entities that belong to all input selections. Use DifferenceSelection to get all entities that belong to some of the add selections, but do not belong to any of the subtract selections. Use ComplementSelection to get all entities of the given dimension that do not belong to any input selection.

The following properties are available:

Table 4-45: Available properties for DifferenceSelection
Name	Value	Default	Description
entitydim	3 \| 2 \| 1 \| 0	space dimension	Dimension of entities to select.
add	String[]	{}	Tags of selections to add
subtract	String[]	{}	Tags of selections to subtract
selshow	on \| off	on	Show selection in physics, materials, and so on. For mesh parts, this option shows selection in instances of the mesh part.
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.
customcolor	RGB-triplet	Next available theme color	The color to use. Active when color is set to custom.

Table 4-46: Available properties for UnionSelection, IntersectionSelection, and ComplementSelection.
Name	Value	Default	Description
entitydim	3 \| 2 \| 1 \| 0	space dimension	Dimension of entities to select.
input	String[]	{}	Tags of input selections
selshow	on \| off	on	Show selection in physics, materials, and so on. For mesh parts, this option shows selection in instances of the mesh part.
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.
customcolor	RGB-triplet	Next available theme color	The color to use. Active when color is set to custom.