xrpoly draw a regular polygon

## Syntax

    xrpoly(orig,n,r,[theta])

## Arguments

orig

  vector of size 2.

n

  integer, number of sides.

r

  real scalar.

theta

  real, angle in radian; 0 is the default value.

## Description

`xrpoly` draws a regular polygon with `n` sides contained in the circle of diameter `r` and with the origin of the circle set at point `orig`. `theta` specifies a rotation angle in radian. This function uses the current graphics scales.

## Examples

    plot2d(0,0,-1,"012"," ",[0,0,10,10])
    xrpoly([5,5],5,5)

plot2d(0,0,-1,"012"," ",[0,0,10,10]) xrpoly([5,5],5,5)

## See also

- xrect