normal2d: 2D normal vectors

In affiner: A Finer Way to Render 3D Illustrated Objects in 'grid' Using Affine Transformations

2D normal vectors

Description

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

Usage

normal2d(x, ...)

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

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

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

Value

A Coord2D (normal) vector

Examples

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

affiner documentation built on April 4, 2025, 4:42 a.m.