numsides

Number of polyshape sides

Syntax

N = numsides(polyin)

N = numsides(polyin,I)

N = numsides(polyin) returns the number of sides of a polyshape object.

N = numsides(polyin,I) returns the number of sides of the Ith boundary of polyin.

This syntax is only supported when polyin is a scalar polyshape object.

Create a polygon and determine its number of sides.

t = 0:0.5:2*pi;
P = [cos(t)' sin(t)'];
polyin = polyshape(P);
plot(polyin)

N = numsides(polyin)

N = 13

Input polyshape, specified as a scalar, vector, matrix, or multidimensional array.

Data Types: polyshape

Boundary index, specified as a scalar integer or vector of integers. Each element of I corresponds to a single boundary of the input polyshape.