arrows2: Add arrows to a plot

In inSileco/graphicsutils: Collection of graphics utilities

Add arrows to a plot

Description

Draw a custom arrows between pairs of points.

Usage

arrows2(
  x0,
  y0,
  x1 = x0,
  y1 = y0,
  off0 = 0,
  off1 = off0,
  cex.arr = 1,
  cex.shr = 1,
  cex.hh = 1,
  cex.hl = 1,
  prophead = TRUE,
  twoheaded = FALSE,
  ...
)

Arguments

x0	the x coordinates of points from which to draw arrows.
y0	the y coordinates of points from which to draw arrows.
x1	the x coordinates of points to which to draw arrows.
y1	the y coordinates of points to which to draw arrows.
off0	offset of points from which to draw arrows.
off1	offset of points to which to draw arrows.
cex.arr	the magnification coefficient to be used for the heights of the arrows.
cex.shr	the magnification coefficient to be used to change the height of arrows towards their heads.
cex.hh	the magnification coefficient to be used for the heights of arrows' head.
cex.hl	the magnification coefficient to be used for the lengths of arrows' head.
prophead	logical. If TRUE arrows are drawn with head proportional to the length of the arrows.
twoheaded	logical. If TRUE two-headed arrows are drawn, default is FALSE.
...	additional arguments to be passed to polygon function.

See Also

graphics::arrows()

Examples

# Example 1:
plot0(c(0, 10), c(0, 10))
arrows2(1, 9, 8)
arrows2(1, 8, 8, 1, cex.hh = 1.2, cex.hl = 1.2, col = "grey30", lwd = 1.2,
 prophead = TRUE, twoheaded = TRUE)
arrows2(5, 9, 5, 1)

# Example 2:
plot0(c(0, 1), c(0, 1))
arrows2(runif(2), runif(2), x1 = runif(2), y1 = runif(2))
arrows2(runif(2), runif(2), x1 = runif(2), y1 = runif(2), prophead = FALSE,
 lty = 3)

inSileco/graphicsutils documentation built on Sept. 12, 2022, 11:13 p.m.