Positioning of the Pillar

The position in space of the pillar can be defined in two different ways:

• by a line that is supposed to be parallel to any of the coordinate axes. This line can then in different ways be restricted to give the actual extension of the pillar.

• by explicitly defining the position in space of the end points. This is currently the only possibility when the pillar is not parallel to any of the coordinate axes.

  <position>::= <line_and_restrictions> | <end_points>      <line_and_restrictions>::= <point> (1 ... 25)                                  <end_1>/<end_2>
  <point>,	see General Layout of a Statement.
  The point is always defined using two coordinates. An unrestricted line is created along the axis, not used in the definition of the point (for example, along the w-axis if the point has been defined in the uv system).
  Once the line along the pillar has been generated, it can be restricted at the ends in different ways: by a plane at a given coordinate. by a given plane. by a given panel or by a flange in a panel.
  Clearance between the plane and the end point of the pillar can be defined, for example, for a "doubling" plate.
  <one_coord_plane>		is a plane defined by one coordinate in the main coordinate system of the ship.
  <one_coord_plane_1>::= X1|Y1|Z1= <coord>
  <plane>		is the name of a plane object in the data bank or created in a PLN statement.
  <plane>::= <name>
  <panel>		is the name of a panel. The description line is intersected either by the plane or the flange of the panel.
  <panel>::= <name>
  If not defined according to any of these alternatives, the pillar is supposed to end at the plane of the current panel.
  M1	is a gap, introduced between the restricting plane/panel and the end of the pillar.
  	<gap>::= <number>
  <end_2>	is equal to <end_1>, but "1" should be exchanged for "2" in all indexed keywords.
  <end_points> is used explicitly to define the end points of the pillar.
  <end_points>::=		,X1= <coord>	(1...25)
  		,Y1= <coord>	(1...25)
  		,Z1= <coord>	(1...25)
  		,X2= <coord>	(1...25)
  		,Y2= <coord>	(1...25)
  		,Z2= <coord>	(1...25)

Example 1:

This is a tube attached to the current panel at end 1 with a clearance of 20 mm and restricted at end 2 by a one coordinate plane.

Example 2:

This is an I-bar with the web parallel to the CL, placed between a deck and the flange of a girder.

Example 3:

The pillar is a U-bar with its web parallel to the CL and the flanges towards portside. The pillar is inclined and the end points explicitly given. If the pillar shall be cut at an angle, the end cut angles must be given explicitly in input.