$Metaltri

$Metaltri is the command to provide additional shape for metal region setting. The command is

$Metaltri
Metaltriregionnum
Region_type  Reflectivity f1 f2 f3 f4 f5 f6 f7 f8 
Region_type  Reflectivity f1 f2 f3 f4 f5 f6 f7 f8 
 ....
Region_type  Reflectivity f1 f2 f3 f4 f5 f6 f7 f8 

The Region_type  and  f1 f2 f3 f4 f5 f6 f7 f8 is similar to the command of $pattern_tri_period. But we don't support periodicity 

Region_type .1~4 are triangle, circle, ellipse and rectangle.

If the parameters are not show in the figure, you should set those parameters as 0.