COMSOL 6.2 - Definitions Toolbar

	For step-by-step instructions and general documentation descriptions, this is the Definitions toolbar.

Table 2-7: the Definitions Toolbar.
Button or Menu	Name	Description or Options	Links to more Information
Variables
	Local Variables	Add a Variables node under Definitions.	Global Definitions, Geometry, Mesh, and Materials, Predefined and Built-In Variables
	Variable Utilities	Add a variable utility such as a matrix variable under Definitions.	Variable Utilities
Functions
	Analytic	Add an Analytic function node to define an analytic function.	Analytic
	Interpolation	Add an Interpolation function node to define an interpolation function.	Interpolation
	Piecewise	Add a Piecewise function node to define a piecewise function.	Piecewise
	More Functions	All available Functions (except Analytic, Interpolation, and Piecewise).	Functions
Selections
	Explicit	Add an Explicit node under Definitions.	Named Selections and Explicit
	Complement	Add a Complement node under Definitions.	Union, Intersection, Difference, and Complement
	Adjacent	Add an Adjacent node under Definitions.	Adjacent
	Ball/Disk	Add a Ball (3D) or Disk node under Definitions.	Ball, Disk
	Box	Add a Box node under Definitions.	Box
	Cylinder	Add a Cylinder node under Definitions.	Cylinder
	Union	Add a Union node under Definitions.	Union, Intersection, Difference, and Complement
	Intersection	Add an Intersection node under Definitions.
	Difference	Add a Difference node under Definitions.
	Logical Expression	Add a Logical Expression node under Definitions	Logical Expression
	Selection List	Open the Selection List window.	The Selection List Window
	Colors	Add, reset, or remove colors for selections.	Selection Colors
Probes
	Update Probes	Update all probes.	Probes
	Probes	Select an option from the list to add a node under Definitions. See Table 5-19.
Physics Utilities
	Mass Properties	Add a Mass Properties node to the current model component.	Mass Properties
	Mass Contributions	Add a Mass Contributions node to the current model component.	Mass Contributions
	Participation Factors	Add a Participation Factors node to the current model component.	Participation Factors
	Response Spectrum	Add a Response Spectrum node to the current model component.	Response Spectrum
	Buckling Imperfection	Add a Buckling Imperfection node to the current model component (requires the Structural Mechanics Module or the MEMS Module).	Buckling Imperfection
Coupling
	Nonlocal Couplings	Select an option from the list to add a node under Definitions.	Nonlocal Couplings and Coupling Operators
	Pairs	Select an option from the list to add a node under Definitions.	About Identity and Contact Pairs
Coordinate Systems
	Coordinate Systems1	Select an option from the list to add a node under Definitions. See Table 5-18.	Coordinate Systems
	Perfectly Matched Layer1	Add a Perfectly Matched Layers node under Definitions.	Perfectly Matched Layer
	Infinite Element Domain1	Add an Infinite Element Domain node under Definitions.	Infinite Element Domain
	Absorbing Layer1	Add an Absorbing Layer node under Definitions.	Absorbing Layer
Optimization
	Optimization	Add Control Variable Field and Control Function nodes.	See the documentation for the Optimization Module.
View
	View1	Add a View node to the current Component to control the view and lighting in the Graphics window. 3D and 2D.	View (1D and 2D), View (3D), Axis (2D and 2D Axisymmetric) and Axis (1D and 1D Axisymmetric)
Clear
	Clear Reduced-Order Models1	Removing all reduced-order models.	Importing and Clearing Reduced-Order Models
1 For cross-platform users (macOS and Linux), the combination of buttons that display is dependent in the toolbar setting. For example, some buttons may not be visible if the Tools>Toolbar Display Mode is set to Normal and the Tools>Toolbar Button Label is set to Show Icon and Text. It also depends on whether you are using a Widescreen or Regular Screen Layout.

Table 2-7: the Definitions Toolbar.

Button or Menu

Name

Description or Options

Links to more Information

Variables

Local Variables

Add a Variables node under Definitions.

Global Definitions, Geometry, Mesh, and Materials, Predefined and Built-In Variables

Variable Utilities

Add a variable utility such as a matrix variable under Definitions.

Variable Utilities

Functions

Analytic

Add an Analytic function node to define an analytic function.

Analytic

Interpolation

Add an Interpolation function node to define an interpolation function.

Interpolation

Piecewise

Add a Piecewise function node to define a piecewise function.

Piecewise

More Functions

All available Functions (except Analytic, Interpolation, and Piecewise).

Functions

Selections

Explicit

Add an Explicit node under Definitions.

Named Selections and Explicit

Complement

Add a Complement node under Definitions.

Union, Intersection, Difference, and Complement

Adjacent

Add an Adjacent node under Definitions.

Adjacent

Ball/Disk

Add a Ball (3D) or Disk node under Definitions.

Ball, Disk

Box

Add a Box node under Definitions.

Box

Cylinder

Add a Cylinder node under Definitions.

Cylinder

Union

Add a Union node under Definitions.

Union, Intersection, Difference, and Complement

Intersection

Add an Intersection node under Definitions.

Difference

Add a Difference node under Definitions.

Logical Expression

Add a Logical Expression node under Definitions

Logical Expression

Selection List

Open the Selection List window.

The Selection List Window

Colors

Add, reset, or remove colors for selections.

Probes

Select an option from the list to add a node under Definitions. See Table 5-19.

Physics Utilities

Mass Properties

Add a Mass Properties node to the current model component.

Mass Properties

Mass Contributions

Add a Mass Contributions node to the current model component.

Mass Contributions

Participation Factors

Add a Participation Factors node to the current model component.

Participation Factors

Response Spectrum

Add a Response Spectrum node to the current model component.

Response Spectrum

Buckling Imperfection

Add a Buckling Imperfection node to the current model component (requires the Structural Mechanics Module or the MEMS Module).

Buckling Imperfection

Coupling

Nonlocal Couplings

Select an option from the list to add a node under Definitions.

Nonlocal Couplings and Coupling Operators

Pairs

Select an option from the list to add a node under Definitions.

About Identity and Contact Pairs

Coordinate Systems

Coordinate Systems1

Select an option from the list to add a node under Definitions. See Table 5-18.

Coordinate Systems

Perfectly Matched Layer1

Add a Perfectly Matched Layers node under Definitions.

Perfectly Matched Layer

Infinite Element Domain1

Add an Infinite Element Domain node under Definitions.

Infinite Element Domain

Absorbing Layer1

Add an Absorbing Layer node under Definitions.

Absorbing Layer

Optimization

Add Control Variable Field and Control Function nodes.

See the documentation for the Optimization Module.

View

Add a View node to the current Component to control the view and lighting in the Graphics window.

3D and

2D.

View (1D and 2D), View (3D), Axis (2D and 2D Axisymmetric) and Axis (1D and 1D Axisymmetric)

Clear

Clear Reduced-Order Models1

Removing all reduced-order models.

Importing and Clearing Reduced-Order Models

1 For cross-platform users (macOS and Linux), the combination of buttons that display is dependent in the toolbar setting. For example, some buttons may not be visible if the Tools>Toolbar Display Mode is set to Normal and the Tools>Toolbar Button Label is set to Show Icon and Text. It also depends on whether you are using a Widescreen or Regular Screen Layout.