Block Format Keyword Selected edges from given surfaces as lines.


Enter selected surfaces (any number may be input, 10 per Line).
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
surf_ID1 surf_ID2 surf_ID3 surf_ID4 surf_ID5 surf_ID6 surf_ID7 surf_ID8 surf_ID9 surf_ID10


Field Contents SI Unit Example
line_ID Line group identifier

(Integer, maximum 10 digits)

unit_ID Unit Identifier

(Integer, maximum 10 digits)

line_title Line group title

(Character, maximum 100 characters)

surf_ID1, surf_ID2, ... surf_IDn List of surface identifiers




  1. Lines are used to define interfaces in 2D analysis and interface TYPE8, TYPE11 and TYPE20 in 3D analysis.
  2. All nodes must belong to a shell, brick, triangular shell, truss, or beam element.