Creating and Positioning Secondary Nodes
- Last UpdatedFeb 19, 2025
- 2 minute read
A Secondary Node is owned by, and positioned relative to, an existing Section. It enables the user to position and connect another Section (an Attached Section) at any point along the length of the first Section (the Owning Section), rather than having to define the position of the Attached Section in ‘free space’.
Keywords
NEW SNODE ZDISTANCE
Description
SNOD elements are created, as for other Design elements, by using the NEW command.
They are positioned by specifying their distance from their owning Section’s Start Position, measured along the Neutral Axis towards the End Position. This distance, which is held in the Node’s ZDIST attribute, may be specified as an absolute length, as a proportion of the overall distance between Start Position (POSS) and End Position (POSE) (that means a proportion of the derived length of the Section), or by reference to any marker (pin, p-point, p-line), element or plane.
Example |
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NEW SNOD /SNOD1 ZDIST 1500 |
Creates a Secondary Node named /SNOD1 at the specified distance from the start of the Section. The Node is positioned on the Neutral Axis of the owning Section. |
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NEW SNOD /SNOD2 IS 1250 FROM END |
The position of the new Node is measured from the POSE position rather than from the default reference of POSS. |
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NEW SNOD /SNOD4 ZDIS PROP .33 |
The new Node is positioned one third of the way along the Section’s Neutral Axis, measured from the start of the Section. |
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NEW SNOD /SNOD3 ZDIS PROP 0.25 FROM END |
The new Node is positioned one quarter of the way along the Section’s Neutral Axis, measured from the end of the Section. |
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NEW SNODE /SNOD5 ZDIS PLANE W30N DIST 0.0 |
The new Node is positioned at the intersection of the owning section’s neutral axis with the defined plane. |
Command Syntax
>-- ZDIStance --+-- <uval> --------------.
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|-- PROPortion -- value -+-- FRom --+-- STart --.
| | | |
| | |-- ENd ----|
| | | |
| | ‘-- <gid> --|
| | |
| ‘----------------------+
| |
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|-- <marke> ------------------------------------|
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‘-- <plane> ------------------------------------+->
Querying
Q ZDIStance