# patchNormPlot

Below is a demonstration of the features of the `patchNormPlot` function

## Contents

```
clear; close all; clc;
```

## Syntax

`[hp]=patchNormPlot(F,V,a,pathType);`

## Description

Visualizes surface normals for all faces F with vertices V.

## Examples

testCase=2; switch testCase case 1 %Single element square 1x1 z=2; V=[0 0 0; 1 0 0; 0 1 z; 1 1 0]; F=[1 2 4 3]; case 2 %Sphere triangles r=1; n=2; [F,V]=geoSphere(n,r); end

Visualization of face normals

cFigure; gpatch(F,V,'w'); hp=patchNormPlot(F,V); %Visualize face normals axisGeom; camlight headlight; drawnow;

* GIBBON* www.gibboncode.org

*Kevin Mattheus Moerman*, [email protected]

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License: https://github.com/gibbonCode/GIBBON/blob/master/LICENSE

GIBBON: The Geometry and Image-based Bioengineering add-On. A toolbox for image segmentation, image-based modeling, meshing, and finite element analysis.

Copyright (C) 2006-2021 Kevin Mattheus Moerman and the GIBBON contributors

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

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