affiner (version 0.1.3)

normal2d: 2D normal vectors

Description

normal2d() is an S3 generic that computes a 2D normal vector.

Usage

normal2d(x, ...)
# S3 method for Coord2D
normal2d(x, ..., normalize = TRUE)
# S3 method for Line2D
normal2d(x, ..., normalize = TRUE)

Value

A Coord2D (normal) vector

Arguments

x

Object to compute a 2D normal vector for such as a Line2D object.

...

Passed to or from other methods.

normalize

If TRUE coerce to a normalize vector

Examples

  p <- as_coord2d(x = 2, y = 3)
  normal2d(p)
  normal2d(p, normalize = FALSE)