Generating a Topology Point

The idea behind the topology points is that they should be able to be generated in a very general way by referring to a large variety of items in the model, including other topology points. If new needs should occur the point generation module can easily be extended.

The design language of AVEVA Marine has a special statement type for topology points, the POINT statement. The syntax of this statement is described in detail in the next chapter.

The main alternatives for definition of a topology point are as follows:

• Explicitly given point,

• Corner of the current or another panel,

• Cross section of an intersecting profile (one of several characteristic points in a profile section),

• Intersection between two ‘curves’ to be arbitrarily combined:

  • A line

  • A panel limit

  • An arbitrary curve

  • A curve from a panel section

• Interpolation between points

• At stiffener, flange or seam end

• Along curve

Each point definition is supposed to be combined with a possibility for offsets along the axes of the coordinate system (either in uvw or xyz) or for displacements given distances along the directions associated with the point (or along the curves involved in the point definition).

Existing topology points may be used in the definition of new ones.