as_coord2d: Cast to coord2d object

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

Cast to coord2d object

Description

as_coord2d() casts to a Coord2D class object

Usage

as_coord2d(x, ...)

## S3 method for class 'angle'
as_coord2d(x, radius = 1, ...)

## S3 method for class 'character'
as_coord2d(x, ...)

## S3 method for class 'complex'
as_coord2d(x, ...)

## S3 method for class 'Coord3D'
as_coord2d(
  x,
  permutation = c("xyz", "xzy", "yxz", "yzx", "zyx", "zxy"),
  ...,
  plane = as_plane3d("xy-plane"),
  scale = 0,
  alpha = angle(45, "degrees")
)

## S3 method for class 'data.frame'
as_coord2d(x, ...)

## S3 method for class 'list'
as_coord2d(x, ...)

## S3 method for class 'matrix'
as_coord2d(x, ...)

## S3 method for class 'numeric'
as_coord2d(x, y = rep_len(0, length(x)), ...)

## S3 method for class 'Coord2D'
as_coord2d(x, ...)

Arguments

x	An object that can be cast to a Coord2D class object such as a matrix or data frame of coordinates.
...	Further arguments passed to or from other methods
radius	A numeric vector of radial distances.
permutation	Either "xyz" (no permutation), "xzy" (permute y and z axes), "yxz" (permute x and y axes), "yzx" (x becomes z, y becomes x, z becomes y), "zxy" (x becomes y, y becomes z, z becomes x), "zyx" (permute x and z axes). This permutation is applied before the (oblique) projection.
plane	A Plane3D class object representing the plane you wish to project to or an object coercible to one using as_plane3d(plane, ...) such as "xy-plane", "xz-plane", or "yz-plane".
scale	Oblique projection foreshortening scale factor. A (degenerate) 0 value indicates an orthographic projection. A value of 0.5 is used by a “cabinet projection” while a value of 1.0 is used by a “cavalier projection”.
alpha	Oblique projection angle (the angle the third axis is projected going off at). An angle() object or one coercible to one with as_angle(alpha, ...). Popular angles are 45 degrees, 60 degrees, and arctangent(2) degrees.
y	Numeric vector of y-coordinates to be used.

Value

A Coord2D class object

Examples

df <- data.frame(x = sample.int(10, 3),
                 y = sample.int(10, 3))
as_coord2d(df)
as_coord2d(complex(real = 3, imaginary = 2))
as_coord2d(angle(90, "degrees"), radius = 2)
as_coord2d(as_coord3d(1, 2, 2), alpha = degrees(90), scale = 0.5)

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