nsidedpoly

Regular polygon

Syntax

pgon = nsidedpoly(n)

pgon = nsidedpoly(n,Name,Value)

Description

pgon = nsidedpoly(n) returns a regular polygon with n equal-length sides. The center of pgon is at the point (0,0), and the circumscribed circle of the polygon has radius 1.

example

pgon = nsidedpoly(n,Name,Value) specifies additional properties of the polygon using one or more name-value pair arguments. For example, pgon = nsidedpoly(4,'SideLength',5) creates a square centered at (0,0) with sides of length 5.

Examples

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Hexagon

Open Live Script

Create a hexagon with sides of length 1 centered at the point (0,0). Then, create a hexagon with sides of length 3 centered at (5,0).

pgon1 = nsidedpoly(6);
pgon2 = nsidedpoly(6,'Center',[5 0],'SideLength',3);
plot([pgon1 pgon2])
axis equal

Figure contains an axes object. The axes object contains 2 objects of type polygon.

Input Arguments

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`n` — Number of sides
positive scalar integer

Number of sides of the polygon, specified as a positive scalar integer greater than 2.

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: pgon = nsidedpoly(3,'Radius',10)

`Center` — Center point
1-by-2 row vector

Center point of the polygon, specified as the comma-separated pair consisting of 'Center' and a 1-by-2 row vector whose first element is the x-coordinate of the point and whose second element is the y-coordinate.

`Radius` — Radius
positive scalar

Radius of the circumscribed circle of the polygon, specified as the comma-separated pair consisting of 'Radius' and a positive scalar. This name-value pair cannot be combined with the 'SideLength' name-value pair.

`SideLength` — Side length
positive scalar

Side length of polygon, specified as the comma-separated pair consisting of 'SideLength' and a positive scalar. This name-value pair cannot be combined with the 'Radius' name-value pair.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

Names must be compile-time constant in name-value arguments.
Dynamic memory allocation must be enabled.
A polyshape object must not be an input or output of an entry-point function.
A polyshape object outside a loop cannot refer to a polyshape object allocated inside a loop. For more information, see Handle Object Limitations for Code Generation (MATLAB Coder).

Version History

Introduced in R2017b