numboundaries

Number of polyshape boundaries

Syntax

N = numboundaries(polyin)

Description

N = numboundaries(polyin) returns the number of boundaries of a polyshape object.

Examples

Number of Polygon Boundaries

Create a polygon and determine its number of boundaries.

x1 = [0 1 2];
y1 = [0 1 0];
x2 = [2 3 4];
y2 = [1 2 1];
polyin = polyshape({x1,x2},{y1,y2});
plot(polyin)

N = numboundaries(polyin)

N = 
2

Input Arguments

polyin — Input polyshape

scalar | vector | matrix | multidimensional array

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

Data Types: polyshape

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

• Dynamic memory allocation must be enabled for code generation.

Version History

Introduced in R2017b