Primitive Modelling Attributes

The Model hierarchy is a ‘skeleton’ structure of the elements which represent the chosen organization of the model. The physical appearance and layout of the process items are determined by the value of each element’s attributes; for example, a Box only looks like a box if its XLEN, YLEN and ZLEN attributes are set (on creation they are zero).

This section describes those physical primitive element attributes that give a shape to the model. Generally, these attributes will either be set by typing in their values directly or from macros. It is important, however, to recognize that regardless of how it was input, the basic attribute information is the stored physical description of the designed Plant.