Positioning and Orientating Secondary Joints

Keywords

POSLINE (ZDISTANCE)  BANGLE

Description

The position and orientation of a Secondary Joint are defined with respect to its owning Secondary Node. The position of this Node is separately defined with respect to its owning Section, as described Creating and Positioning Secondary Nodes. The Joint’s position with respect to the Section depends, therefore, upon the settings of two attributes:

• The Z-axis Distance (ZDIST) attribute of the owning SNOD.

• The Positioning Line (POSL) attribute of the SJOI itself. This defines the position of the Joint in relation to the p-line system which has been set up for the owning Section’s Profile within the Catalog. The default POSL setting is Neutral Axis (NA), so that the Joint’s Origin (more strictly, its JLIN) lies on the Section’s Neutral Axis at the position specified by the ZDIST: that is, the Joint’s Origin is coincident with the position of its owning SNOD.

The Beta Angle (BANG) specifies the angular rotation of the Joint about its Origin Plane Direction. The default setting is zero, so that the Joint’s orientation is as defined by its Catalog representation.

Command Syntax

>-- POSLine word -->

where word is usually one of the following:

>-- BANGle --+-- value ------------------.
             |                           |
             ‘-- <bdir> TOwards <bdir> --+-->

Querying