# lineVec

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

## Contents

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

## Syntax

`[h]=lineVec(P,V,vecSize,colorSpec,quiverStyleOpt,alphaLevel)`

## Description

This function visualizes vector or direction data as lines. Lines can be colormapped. The inputs should include the vector origins P, and the vectors V. The following optional inputs can be provided:

vecSize: The vector size either a single number of [size(V,1) 1] colorSpec: string color options e.g. 'k' for black or [size(V,1) 1] or [size(V,1) 3] color data quiverStyleOpt: Style option lineWidth: Line width alphaLevel: Transparency level

The quiver style option can be set to: 1: Depart from origin 2: Arrive at origin 3: Pass through origin 4: Two-sided

## Examples

Plot settings

fontSize=20;

## Example: basic use for normal direction vector plotting

Create example data

[F,V]=geoSphere(2,2); [N,VN]=patchNormal(F,V);

Visualizing lines/vectors

cFigure; hold on; gpatch(F,V,'w','k'); h=lineVec(VN,N); axisGeom(gca,fontSize); camlight headlight; gdrawnow;

## Example: Specifying full input set

vecSize=0.25; %Vector size colorSpec=VN(:,3); %Color data quiverStyleOpt=3; %Style option lineWidth=3; %Line width alphaLevel=0.8; %Transparency level

Plotting model

cFigure; hold on; gpatch(F,V,'w','none',0.5); h=lineVec(VN,N,vecSize,colorSpec,quiverStyleOpt,lineWidth,alphaLevel); axisGeom(gca,fontSize); camlight headlight; gdrawnow;

* 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) 2006-2020 Kevin Mattheus Moerman

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.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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