檢視 $setradseparately 的原始碼

$setradseparate is the command to set radiative region without using fet's radiative distribution. <br>

The command is 
 $setradseparate
 N_ranges
 xmin_1 xmax_1 ymin_1 ymax_1 surface_No_1
 xmin_2 xmax_2 ymin_2 ymax_2 surface_No_2
 xmin_3 xmax_3 ymin_3 ymax_3 surface_No_3
 ...
 xmin xmax ymin ymax Surface_No_N

 if Rad_type <1  then it is used for without using gmsh file. So the radaitive region will appear in the range of 
     xmin <= x <= xmax and ymin <= y <= ymax 
  
 If Rad_type > 1, it is designed for gmsh's surface number. So the rative will appear in the range of 
 gmsh_surface_No = Surface_No and xmin <= x <= xmax and ymin <= y <= ymax