Posefourbarposelimit

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - 4Bar/Linkages
Introduced first in SolidGeometry 4.5, Creation date: 2019-03-26, Last change: 2025-09-14

finds the angle limits for a fourbar movement



See Also: checkfourbar3Poseattachpermutation , Posefourbaranimate , PLofPosecouplercurve , Posefourbarangles , Posefourbaranglelimit

Example Illustration

missing image of Posefourbarposelimit(PS,aps,ford)

Syntax

[PS,wlim,ford]=Posefourbarposelimit(PS,[aps,ford])

Input Parameter

PS: Pose struct including GPL and GAL
aps: optional index for test
ford: optional order; default is default order or 123

Output Parameter

PS: Pose struct with modified PS.GAL List and limited angles!
wlim: limitation for angle [0 0] if no solution possible for input ford
ford: order of poses; 0 if no solution possible for input ford

Examples


PS=Posesample(5)
PS=checkfourbar3Poseattachpermutation(PS,3)
PS=Posefourbarposelimit(PS,2)
Posefourbaranimate(PS,2);
[[1:20]' PS.GAL(1:20,:)] % 1 2 7 17
Posefourbarposelimit(PS,7,123)
Posefourbarposelimit(PS,7,231)
Posefourbarposelimit(PS,7,312)
Posefourbarposelimit(PS,7,321)
Posefourbarposelimit(PS,7,132)
Posefourbarposelimit(PS,7,213); % Tiger Claw shape



Copyright 2019-2025 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