# ellipseCoord3

Below is a demonstration of the features of the ellipseCoord3 function

## Contents

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

## Syntax

[V]=ellipseCoord3(e,t);

## Description

Calculates ellipse coordinates for the angles in t based on the input structure e which contains the following fields: radii, a 2x1 array axes, a 3x3 rotation matrix centre the ellipse centre coordinates

## Examples

```%Define example input data

%Angles
t=linspace(0,2*pi);

%Centre coordinates
Vc=[2 2 2];

%Radii
r=[1 2];

%Rotation matrix
Q=euler2DCM([0 -0.25*pi 0.25*pi]);

%Compose input structure
e.centre=Vc;
e.radii=r;
e.axes=Q;

%Compute ellipse coordinates
V=ellipseCoord3(e,t);
```

Visualize ellipse

```cFigure;
plotV(V,'r.-','MarkerSize',25,'LineWidth',3);
axisGeom;
drawnow;
```

GIBBON www.gibboncode.org

Kevin Mattheus Moerman, [email protected]

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

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