fix_modify AtC mesh create_faceset box command — LAMMPS documentation

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# fix_modify AtC mesh create_faceset box command

## Syntax

    fix_modify <AtC fixID> mesh create_faceset <id> box <xmin> <xmax> <ymin> <ymax> <zmin> <zmax> <in|out> [units]

- AtC fixID = ID of fix atc instance

- mesh create_faceset = name of the AtC sub-command

- id = id to assign to the collection of FE faces

- box = use bounding box to define FE faces

- <xmin> <xmax> <ymin> <ymax> <zmin> <zmax> = coordinates of the bounding box that is coincident with the desired FE faces

- <in|out> = “in” gives inner faces to the box, “out” gives the outer faces to the box

- units = option to specify real as opposed to lattice units

## Examples

    fix_modify AtC mesh create_faceset obndy box -4.0 4.0 -12 12 -12 12 out

## Description

Command to assign an id to a set of FE faces.

## Restrictions

Only viable for rectangular grids.

## Related AtC commands

- fix_modify AtC command overview

- fix_modify AtC mesh create_faceset plane

## Default

The default options are units = lattice and the use of outer faces.