fitEllipse

(method of grain2d)

fit ellipses to grains using the method described in Mulchrone& Choudhury,2004 (https://doi.org/10.1016/S0191-8141(03)00093-2)

Syntax

[omega,a,b] = fitEllipse(grains);
plotEllipse(grains.centroid,a,b,omega,'lineColor','r')

Input

grains

grain2d

Output

omega

angle giving trend of ellipse long axis

a

long axis radius

b

short axis radius

ion

boundary

scale to fit boundary length