spiral_polygon: Add polygons to a track

In spiralize: Visualize Data on Spirals

Add polygons to a track

Description

Add polygons to a track

Usage

spiral_polygon(
  x,
  y,
  id = NULL,
  gp = gpar(),
  track_index = current_track_index()
)

Arguments

x	X-locations of the data points.
y	Y-locations of the data points.
id	A numeric vector used to separate locations in x and y into multiple polygons.
gp	Graphical parameters.
track_index	Index of the track.

Value

No value is returned.

Examples

x = seq(0, 2*pi*10, length = 1000)
y = c(sin(x), cos(rev(x)))
x2 = c(x, rev(x))

# in the normal cartesian coordinate system
plot(NULL, xlim = range(x2), ylim = range(y))
polygon(x2, y, col = "red")

# in the spiral coordinate system
spiral_initialize(xlim = range(x2))
spiral_track(ylim = range(y))
spiral_polygon(x2, y, gp = gpar(fill = "red"))

# try a different scale
spiral_initialize(xlim = range(x2), scale_by = "curve_length")
spiral_track(ylim = range(y))
spiral_polygon(x2, y, gp = gpar(fill = "red"))

spiralize documentation built on June 22, 2024, 10:45 a.m.