Repetition Term

A repetition term provides a quick way to enter multiple planes along the main axes when the positions follow a regular pattern. As with a single plane, you can define plane positions using either coordinates or grid references.

The general format is:

<start>(<step>)<end>[+offset | -offset]

• <start> and <end> define the first and last planes, specified as coordinates or grid references.

• <step> defines the distance, or the number of grid positions, between adjacent planes.

• When you use grid references, omit the prefix (for example, FR) from <end>.

• If you omit <step>, the default step is 1.

The optional offset applies only to planes defined by grid references. In this case, the evaluated plane position is offset by the specified amount from each grid position.

You can separate multiple plane positions or repetition terms with commas. This is useful for quickly entering irregular plane positions.

Many interactive marine functions support repetition terms, such as creating surfaces, panels or stiffeners by plane cuts.

Note: Repetition terms used in component definitions (for example, in a panel) are always stored as the evaluated plane positions.

The following examples show valid plane input and the individual planes to which they evaluate.