$deformperiod

$deformboundary is the definition of N deform reions

$deformperiod
type  N_period  spacing
type  N_period  spacing
type  N_period  spacing
type  N_period  spacing
type  N_period  spacing

type =1 (equal to $deformboundary type 1. No periodicity
type =11 periodicity of deform region along the x direction. 
type =21 periodicity of deform region along the y direction.

Example:

$deformperiod
1   1   0.0
11  20  1.0
21  2   2.0