sel group metro_tunnel 求解

rocksoil

ew
restore model.sav  ;初始模型中结构单元节点与土体间无link
set echo on
plot set ba wh
set plot meta
;-----------------结构单元分组-----------------------
sel group metro_tunnel ran plane ori=(80,0,0) norm=(1,0,0) above
是什么意思
sel group metro_station range group metro_tunnel y=(-87,61)
sel group wall ran plane ori=(80,0,0) norm=(1,0,0) below sel shell
sel group zc1 range sel beam z=(-1.56,-1.54)
sel group zc2 range sel beam z=(-7.36,-7.34)
sel group zc3 range sel beam z=(-9.96,-9.94)
def sel_group
;------beam_nib----------
loop ii(160425,160436)
command
  sel group nib range id=ii
这个又是什么意思呢？
endcommand