Macro Commands - Rectangle Opening

Creates an Opening Entity in a Polylinelist Hull, the opening is rectangular in shape. Used in conjuntion with the Proteus simulation.

Usage:

RectangleOpening OpeningName
	Hull Polylist/Any Surface	The Hull Entity that the opening is in
	Top number/polyline	Optional, The upper boundary of the opening
	Bottom number/polyline	Optional, The lower boundary of the opening
	Length damagelength	The width (damagelength)
	Location number	The X Location of the centre of the damage
	Sections number	The number of sections that will define the opening
	Reflect	Optional, Reflects the opening to the negative side of the hull
	Connect Group1Name direction Group2Name	The groups that the opening can connect to, see below
	Normal vector	The normal vector to align then opening normal to, see below.
	CollapseHead PressureHead	The head required before the opening will allow flooding, default 0
	OpeningTime Time	The time at which the opening will begin to allow flooding, default 0
End

Connection:

The opening can be connected to other entites using the connection definition in described above and functions in the flowing manner:

A -> B	Group A is connected to Group B, nothing can flow from B to A.
A <- B	Group B is connected to Group A, nothing can flow from A to B.
A <-> B	Group A and Group B are connected together, flow is bi-directional.

If SEA is specified as a group then the opening connect to the Sea in the Proteus Simulation.

Normals:

Normals can be specified using axis direction, e.g.

Z-	align to z negative direction
Y+	align to y positive direction

or the Normal can be specified using user defined vector e.g.
[1, 1, 0]

Note: The Normal does not have to be unit length

Example:

The Opening Examples page provides sample opening definition examples