VLFLfaceNormal

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - Analytical Geometry
Introduced first in SolidGeometry 2.1, Creation date: 2015-01-09, Last change: 2025-09-14

returns the normal vector (or NAN) of the facet list and cutted (1e-4) length

Description

This is a function to adapt the VLFL syntax to R2014b.
The matlab cross-function of triangualtion results returns calucation error in size (1e-4)
returns NAN for points a line or very small tritangels

See Also: VLFLvertexNormal , PLnorm , PLELnorm , PLFLfaceNormal , VLnorm , VLedgeNormal , VLFLfaceAngles

Example Illustration

 missing image of VLFLfaceNormal(VL,FL,fi,th)

Syntax

[NL,AL]=VLFLfaceNormal(VL,FL,[fi,th])

Input Parameter

VL: Vertex list n x 3
FL: Facet list
fi: optional value; facet index (list)
th:

Output Parameter

NL: Normal vector list
AL: Area list;

Examples


[VL,FL]=PLFLofCPLdelaunay(PLcircle(1)); VL=VLaddz(VL);
VLFLfaceNormal(VL,FL)




Copyright 2015-2025 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