# IsPbcEmpty()

Check to see if the geom/mesh set of the periodic model is empty.

## Usage

IsPbcEmpty( model )

## Parameters

model (string)
The name of the periodic model entity to be checked for emptiness.

## Return Value

emptyFlag (boolean)
The flag that indicates the emptiness of the periodic model entity (true if model entity is empty).

## Error

The model must be a valid periodic entity.

## Description

This routine checks to see if the geom/mesh set of a periodic model entity is empty. The model is the name of the periodic entity to be checked for emptiness. If the return value is True, the periodic model entity is empty, or else it is not empty. For example,
IsPbcEmpty( 'pbc_1' )