# Infinite box: definition (structure)

## Definition

The Infinite box entity is defined by:

• a name
• a type of box
• internal and external box sizes

## Name

The name to identify the infinite box is allocated automatically by Flux during the creation of this one.

The user cannot modify this name.

## Infinite box type: 2D domain

The infinite box types and the characteristics useful for their description are gathered in the table below.

Infinite box type Internal and external sizes
disc

## Infinite box types: domaine 3D

The infinite box types and the characteristics useful for their description are gathered in the table below.

Infinite box type Internal and external sizes
parallelepiped
• X inner size, half length
• X outer size, half length
• Y inner size, half length
• Y outer size, half length
• Z inner size, half length
• Z outer size, half length
X cylinder /

Y cylinder /

Z cylinder

• inner size, half height
• outer size, half height

## Important

It is not possible to change the type of the infinite box by editing its dialog box.

To change the infinite box type:

• Delete the infinite box
• Create a new infinite box

## Length and angle units

Length and angle units are those associated with the domain.

These units can be edited and modified in the dialog box of the Domain Type.