Draw an arrow from (x_i, y_i) to (x_j, y_j)

Usage

add_one_arrow(
  x_i,
  y_i,
  x_j,
  y_j,
  p = 1,
  r = 0,
  arw_lng = 0.1,
  wt = 1,
  lamp = 1,
  clr = "#CCCCCC"
)

add_one_arrow(
  x_i,
  y_i,
  x_j,
  y_j,
  p = 1,
  r = 0,
  arw_lng = 0.1,
  wt = 1,
  lamp = 1,
  clr = "#CCCCCC"
)

Arguments

x_i

source x value

y_i

source y value

x_j

destination x value

y_j

destination y value

p

fraction of length to plot

r

the radius of a ring around destination points

arw_lng

the arrow length

wt

the line weight

lamp

arrow width scaling factor

clr

the arrow color

Value

invisible(NULL)

invisible(NULL)