k-Wave Toolbox |

# makeCartSphere

Create a 3D Cartesian sphere

## Syntax

    sphere = makeCartSphere(radius, num_points)
    sphere = makeCartSphere(radius, num_points, center_pos)
    sphere = makeCartSphere(radius, num_points, center_pos, plot_sphere)

## Description

`makeCartSphere` creates a 3 x `num_points` array of the Cartesian coordinates of points evenly distributed over a sphere using the Golden Section Spiral method. The function is based on code by Patric Boucher and Henry Bland on http://www.xsi-blog.com. The 3D plot that is displayed after calling `makeCartSphere(10, 500, [0,0,0], true)` is given below.

## Inputs

`radius` | sphere radius [m]
`num_points` | number of points on the sphere

## Optional Inputs

`center_pos` | [x, y, z] position of the circle center [m] (default = [0, 0, 0])
`plot_sphere` | Boolean controlling whether the Cartesian coordinates are plotted using `plot3` (default = false)

## Outputs

`sphere` | 3 x `num_points` array matrix of Cartesian points

## Examples

- 3D Time Reversal Reconstruction For A Spherical Sensor

## See Also

`cart2grid`, `makeCartCircle`, `makeSphere`

© 2009, 2010 Bradley Treeby and Ben Cox.