FLinsideSurfaceofSG

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - FS/Feature Surfaces
Introduced first in SolidGeometry 4.9, Creation date: 2020-08-04, Last change: 2025-09-14

Returns the Facet Indices of inside surfaces

Description

Uses SGinsideSurface
In contrast to SGinsideSurface, this function first of all splits a geometry into independent surfaces, which were possibly only combined with SGconcat. To avoid STL reading errors it is recommended to use the SGshortopti function for CATIA/SOLIDWORS exported models.
Afterwards the inner faces are detected for each of these surfaces.
It is not always useful to disassemble the surfaces first, so there is an option to switch this off

See Also: SGcheckfacedist , SGinsidesurface

Example Illustration

 missing image of FLinsideSurfaceofSG(SG,seper,maxtry,wlim,ilim)

Syntax

[FLi,SG]=FLinsideSurfaceofSG(SG,[seper,maxtry,wlim,ilim])

Input Parameter

SG: Solid Geometry
seper: separate into independent surfaces first; default is true
maxtry: Number of tries to find an opponing facet; default is 10
wlim: warning limit; default is 0.7 mm
ilim: intended limit; distance that is intended; default is 0.1mm

Output Parameter

FLi: Facet surface index list
SG: inside index of feature surface

Examples


load JACO_robot.mat
SG=SGsurfaces(JC3,3)
FLinsideSurfaceofSG(SG);

FLinsideSurfaceofSG(SG); fi=ans; fi=find(fi); fi=fi(1), T=Tof3P(SG.VL(SG.FL(fi,:),:)); tplot(T,100); FSofSGT(SG,T,'',.1)
FLinsideSurfaceofSG(SG); fi=ans; SGN=SG; SGN.FL=SG.FL(fi,:); SGsurfaces(SGN)




Copyright 2020-2025 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