The ATTR command is used for displaying the value of an attribute in the graphical representation (GraphRep). The parameter w is used for setting the width of the text and the horizontal alignment (left, right or centered) in relation to the text's given position (x, y). The parameter line-break is used for configuring the automatic line breaking function. The default value is words, which implies breaking the line before the first word that goes beyond the maximum length; if the value is rigorous, the word is broken before the first letter that goes beyond the permitted width and the value off disables the line-break function.

The maximum width can be a predefined value, as in the example below


or can be set by the end-user; in this case, an attribute of type DOUBLE has to be defined, displayed in the attribute representation and read in the graphical representation using the AVAL command: