as_line2d: Cast to Line2D object

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

Cast to Line2D object

Description

as_line2d() casts to a Line2D object.

Usage

as_line2d(...)

## S3 method for class 'numeric'
as_line2d(a, b, c, ...)

## S3 method for class 'angle'
as_line2d(theta, p1 = as_coord2d("origin"), ...)

## S3 method for class 'character'
as_line2d(x, ...)

## S3 method for class 'Coord2D'
as_line2d(normal, p1 = as_coord3d("origin"), p2, ...)

## S3 method for class 'Line2D'
as_line2d(line, ...)

## S3 method for class 'Point1D'
as_line2d(point, b = 0, ...)

Arguments

...	Passed to other function such as as_coord2d().
a, b, c	Numeric vectors that parameterize the line via the equation a * x + b * y + c = 0. Note if y = m * x + b then m * x + 1 * y + -b = 0.
theta	Angle of the line represented by an angle() vector.
p1	Point on the line represented by a Coord2D class object.
x	A (character) vector to be cast to a Line2D object
normal	Normal vector to the line represented by a Coord2D class object. p2 should be missing.
p2	Another point on the line represented by a Coord2D class object.
line	A Line2D object
point	A Point1D object

Examples

p1 <- as_coord2d(x = 5, y = 10)
p2 <- as_coord2d(x = 7, y = 12)
theta <- degrees(45)
as_line2d(theta, p1)
as_line2d(p1, p2)

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