'surf' <name(char<9)>|'!' [<set>|<nurbs>]|<shape>] | -> [<nurbs>]|<shape>|'blend'] <line|lcmb> <line|lcmb> (etc. 3 to 5 times).This keyword is used to define or redefine a surface. It is a more convenient way to define a surface than the command gsur. Either individual lines or a set of lines (including optionally one shape or nurs) can be specified. To be meshable with structured elements it requires 3, 4 or 5 edges (lines or lcmbs). To be meshable with tr3u or tr6u it requires either to be planar or to reference a shape or nurbs which can be provided also in a second call with this command. The mouse controlled way to define surfaces is to use the command qsur. If the name of the surface should be automatically generated, then just type ”
!
” instead of a name. See also “gsur” which allows the assignment of a shape or “qshp” which allows the interactive assignment of a shape or nurbs to a surface.