perimeter

Perimeter ofpolyshape

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Syntax

P = perimeter(polyin)

P = perimeter(polyin,I)

P = perimeter(polyin)returns the perimeter of apolyshapeobject, which is the sum of the lengths of its boundaries.

P = perimeter(polyin,I)returns the perimeter of theIth boundary ofpolyin.

This syntax is only supported whenpolyinis a scalarpolyshapeobject.

Open Live Script

Create a polygon with one hole, and compute its perimeter.

V = [0 0; 0 2; 2 2; 2 0; NaN NaN; 0.5 0.5; 0.5 1.5; 1.5 1.5; 1.5 0.5]; polyin = polyshape(V); plot(polyin) axisequal

Figure contains an axes object. The axes object contains an object of type polygon.

P = perimeter(polyin)

P = 12

Inputpolyshape, 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 ofIcorresponds to a single boundary of the inputpolyshape.

Introduced in R2017b