Creates an Opening Entity based on the shape of a closed polyline boundary. Used in conjuntion with the Proteus simulation.


BoundaryOpening OpeningName
  Boundary Polyline A closed polyline representing the boundary of the opening
  Search [X|Y|Z] Steps Direction and number of sections that are to be derived from the boundary
  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


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 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


The Opening Examples page provides sample opening definition examples

See Also: