Autodesk 00128-051462-9310 User Guide - Page 1428

6 Specify offsets: If you want to... Then... offset the beam on its extruded axis at the start point of the enter a value for Start offset. A positive value shortens the beam beam on its axis, while a negative value lengthens the beam on its axis. offset the beam on its extruded axis at the endpoint of the beam enter a value for End offset. A positive value lengthens the beam on its axis, while a negative value shortens the beam on its axis. 7 Enter a value for Roll. This value specifies the orientation of the beam relative to its extruded axis in terms of degrees of roll. A positive value rolls the beam counterclockwise when viewed from its end to its start. 8 Specify the beam justification, which positions the beam shape in relation to its extruded axis when you draw the beam: If you want to... Then... position the axis of the beam along the centroid of the beam shape select Baseline for Justify. NOTE This applies to members created with styles from the Structural Member Catalog only. position the axis of the beam along one of 9 positions on the beam shape select one of the 9 positions for Justify. NOTE These positions are defined at a roll of zero, viewing the beam from the end to the start. 1388 | Chapter 29 Structural Members