fix_modify AtC mesh create_elementset command — LAMMPS documentation

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# fix_modify AtC mesh create_elementset command

## Syntax

    fix_modify <AtC fixID> mesh create_elementset <id> <xmin> <xmax> <ymin> <ymax> <zmin> <zmax>

- AtC fixID = ID of fix atc instance

- mesh create_elementset = name of the AtC sub-command

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

- <xmin> <xmax> <ymin> <ymax> <zmin> <zmax> = coordinates of the bounding box that contains only the desired elements

## Examples

    fix_modify AtC mesh create_elementset middle -4.1 4.1 -100 100 -100 1100

## Description

Command to assign an id to a set of FE elements to be used subsequently in defining material and mesh-based operations.

## Restrictions

Only viable for rectangular grids.

## Related AtC commands

- fix_modify AtC command overview

- fix_modify AtC mesh delete_elements

- fix_modify AtC mesh nodeset_to_elementset

## Default

Coordinates are assumed to be in lattice units.