VLhelix
by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - Analyzing function
Introduced first in SolidGeometry 1.0, Creation date: 2011-12-09, Last change: 2025-09-14
generates a vertex list for a specified helix
Description
returns a PL spiral or a VL helix depending on d=[] or d=z
Name changed from PLhelix to VLhelix in Aug, 2015
PLhelix will be changed to PLspiral for [nx2]
SG-Lib 4.6: supports now also cww/cw turns
See Also: , PLspiral
Example Illustration
Syntax
[VL,n]=VLhelix(R,[d,w2,w1,n,ccw])
Input Parameter
R: | | Radius (centered) of the helix |
d: | | Height (centered) of the helix |
w2: | | Optional turn angle, default is 2pi |
w1: | | Optional starting angle, default is 0 |
n: | | Optional maximum geometry error, default is 0.05 |
ccw: | | true=> ccw:math pos; default is true |
Output Parameter
VL: | | Vertex list [nx3] of the helix in z-direction |
n: | | size(VL,1) |
Examples
VLhelix (10,40,8*pi)
VLhelix (10,40,8*pi,'','',false)
Copyright 2011-2025 Tim C. Lueth. All rights reserved. The code is the property of Tim C. Lueth and may not be redistributed or modified without explicit written permission. This software may be used free of charge for academic research and teaching purposes only. Commercial use, redistribution, modification, or reverse engineering is strictly prohibited. Access to source code is restricted and granted only under specific agreements. For licensing inquiries or commercial use, please contact: Tim C. Lueth
Last html export of this page out of FM database by TL: 2025-09-21