Orientation of the Pillar

Stiffeners and flanges are normally orientated by the plate surface they are welded to. Pillars are "free" and must therefore be oriented by the user explicitly to a larger extent. It is the orientation in space of the symmetry plane (or line) that is defined (see the image above).

Unless the pillar has an end cut with a special orientation, it is irrelevant for round bars and tubes.

Three alternatives exist:

• the symmetry line is directed along one of the main directions of the ship.

• the symmetry line has a given angle to the u-axis in the uv-plane of the panel.

• the symmetry line is between the location point and a given extra point.

  	This alternative means that the symmetry line is pointing in the given direction. It can always be used when applicable.
  <inclination>::= T= <angle>     <angle>::= <number>
  	Defining the orientation by an angle can only be used if the description line through a given uv-point is in the direction of the w-axis (see below).
  <additional_point>
  	is a point in the plane of the panel in the positive direction of the symmetry line, defined by XT, YT/XT, ZT or YT, ZT. May only be used if the position has been defined by a point xyz or by end points (see below).
  For all unsymmetrical profile types, it is necessary to define the orientation of the flange relative to the symmetry plane (see the image above).
  <fla_dir>::= SID= AFT|FOR|SB|PS|TOP|BOT