k-Wave Toolbox

makeBall

Create a binary map of filled ball within a 3D grid

Syntax

ball = makeBall(Nx, Ny, Nz, cx, cy, cz, radius)
ball = makeBall(Nx, Ny, Nz, cx, cy, cz, radius, plot_ball)

Description

makeBall creates a binary map of a filled ball within a three-dimensional grid (the ball position is denoted by 1's in the matrix with 0's elsewhere). A single grid point is taken as the disc centre thus the total diameter of the ball will always be an odd number of grid points. The plot that is displayed after calling makeBall(64, 64, 64, 32, 32, 32, 20, true) is given below.

Inputs

`Nx, Ny, Nz`	size of the 3D grid [grid points]
`cx, cy, cz`	centre of the ball [grid points]
`radius`	ball radius [grid points]

Optional Inputs

plot_ball

Boolean controlling whether the ball is plotted using voxelPlot (default = false)

Outputs

ball

3D binary map of a filled ball

Examples

Simulations In Three Dimensions
Photoacoustic Waveforms in 1D, 2D and 3D
3D FFT Reconstruction For A Planar Sensor
3D Time Reversal For A Planar Sensor
3D Time Reversal For A Spherical Sensor