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lcmb

       'lcmb' <name(char<9)|!> ['+|-' <line> '+|-' <line> '+|-' ->
       <line>..(up to 14 lines)]|
                              ['ADD' '+|-' <line> '+|-' <line> ->
       '+|-' <line>..(up to 14 lines)]

This keyword is used to define, extend or redefine a combined line (lcmb). Combined lines are necessary if the edge of a surface should be made of more than one line. Usually the user does not create lcmbs directly. It will be created automatically during the process of defining a surface with the command qsur. There is no limitation to the number of lines in general but with one command not more than 14 lines can be specified. To specify more than that or to extend an existing lcmb a modified command has to follow. For example,
lcmb U260 + U249 - U248 - U247 - U243 - U237 - U236 - U231 - U219
defines the lcmb U260 with 8 lines and their orientation in the lcmb. The following command
lcmb U260 ADD - U218 - U217
extends the lcmb U260 by two additional lines.