6. Creating and Using Basic Fields : Types of Fields : Composite Fields, Illustrated
 
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Composite Fields, Illustrated
A composite field is a field that may contain other fields. Most composite fields can contain fields of any type, even other composite fields. Composite fields serve a number of purposes. In addition to providing convenient ways of presenting data to the end user, they are often useful for organizing fields on a frame.
For example, a typical table field consists of scalar fields arranged in rows and columns, a vertical scroll bar, and a control button field. A tab folder, however, consists of two other composite fields: tab bars and tab pages.
The following illustrates OpenROAD composite fields: