@ -227,6 +227,16 @@ This command remeshes the atoms/elements within the group to the new element siz
If this option is passed then all files are automatically overwritten without asking the user.
### Option boundary
```
-boundary box_bc
```
This allows the user to specify the boundary conditions for the model being outputted. The format is a 3 character string with `p` indicating periodic and `s` indicating shrink-wrapped.
**Example:** `-boundary psp`
## Position Specification
Specifying positions in cacmb can be done through a variety of ways. Examples of each format is shown below.