All Frameworks  Object Hierarchy  This Framework  Indexes

CATFunctOrientationDirection (Enumeration)

enum CATFunctOrientationDirection {
  CATFunctNotOriented,
  CATFunctOrientedUnidirectional,
  CATFunctOrientedBidirectional
}

The qualifications of Orientation and Direction of a Functional Action.

When NotOriented, no distinction is made between the two Elements the Action is connected on.
Graphically,they are connected by a line without any arrow.
(but they still have to be accessed thru the "From" and "To" properties)
Such qualification is used when the Action is in fact a relationship that points the Elements
(a Welding relationship might be used to point 2 Entities : Flange and Stiffener)

When Oriented, there are two possibilities :

When Unidirectional, the "From" and "To" Elements are connected by a simple arrow matching the direction.
Such qualification is used when the Action is a true Subject-Action-Object relationship.
(a Welding relationship might be used to point 2 Entities : Flange and Stiffener)
When Bidirectional, they are connected by a double arrow, that avoids to create two symetrical unidirectional actions with the same identification.
Such qualification is used when the Action is a true Subject-Action-Object relationship.
(a Heating relationship might be used to point 2 Entities : DiskBrake and BrakeJaws)