# subCurve

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

## Contents

## Syntax

`[VN]=subCurve(Vt,np,closeLoopOpt);`

## Description

The `subCurve` function can be used to increase the point density of the input curve by adding evenly spaced points between each of the curve segments.

## Examples

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

PLOT SETTINGS

fontSize=15; markerSize1=45; lineWidth1=2; lineWidth2=5; lineWidth3=2; faceAlpha=0.5;

## Example: Linearly upsample an open ended curve with intermediate points

Simulating a curve

Vt=[0 0 0; 10 0 0; 5 10 0; 10 0 10; 0 10 10; ];

Upsampling the curve

np=3; %Number of desired intermediate points to be added [VN]=subCurve(Vt,np); %Using subcurve to upsample curve

Plotting results

hf1=cFigure; title('A linearly upsampled curve','FontSize',fontSize); xlabel('X','FontSize',fontSize);ylabel('Y','FontSize',fontSize); zlabel('Z','FontSize',fontSize); hold on; plotV(Vt,'k.-.','lineWidth',lineWidth1,'MarkerSize',markerSize1); plotV(VN,'r.-','lineWidth',lineWidth1/2,'MarkerSize',markerSize1/2); axis equal; view(3); axis tight; grid on; set(gca,'FontSize',fontSize); drawnow;

## Example: Linearly upsample a closed curve with intermediate points

Upsampling the curve

np=3; %Number of desired intermediate points to be added closeLoopOpt=1; %Enable closed loop option [VN]=subCurve(Vt,np,closeLoopOpt); %Using subcurve to upsample curve

Plotting results

hf1=cFigure; title('A linearly upsampled curve with closed end condition','FontSize',fontSize); xlabel('X','FontSize',fontSize);ylabel('Y','FontSize',fontSize); zlabel('Z','FontSize',fontSize); hold on; plotV(Vt,'k.-.','lineWidth',lineWidth1,'MarkerSize',markerSize1); plotV(VN,'r.-','lineWidth',lineWidth1/2,'MarkerSize',markerSize1/2); axis equal; view(3); axis tight; grid on; set(gca,'FontSize',fontSize); drawnow;

* GIBBON* www.gibboncode.org

*Kevin Mattheus Moerman*, gibbon.toolbox@gmail.com

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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) 2019 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.

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