VLFLoppositefaces
by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - Surfaces
Introduced first in SolidGeometry 4.9, Creation date: 2020-01-19, Last change: 2025-09-14
returns the list of faces that have opposit facets in the same solid
Description
SLOW function works up to 1000 facets within a second, 4 seconds for 2000 facets etc.
Use heuristic function FLofoppositefacesofVLFL for larger face numbers such as bone surfaces or other surface scanned solids
See Also: SGnearestpointsofSG
, FLofoppositefacesofVLFL
Example Illustration
Syntax
[ofi,DL,SGB,FCL,FNL]=VLFLoppositefaces(VL,FL,[dmax,slec])
Input Parameter
VL: | | Vertex list |
FL: | | Facet list |
dmax: | | maximal distance |
slec: | | '&' or '|' '&' forces the faces to hit a surface of the same set; default is '&' |
Output Parameter
ofi: | | logical index of facets |
DL: | | [si dist ei cp ] |
SGB: | | Solid Geometry of the Bounding Box |
FCL: | | Facet center list |
FNL: | | Facet Normal list |
Examples
SG=SGsample(25)
VLFLoppositefaces(SG.VL,SG.FL);
VLFLoppositefaces(SG.VL,SG.FL,[1 2]);
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