Add the nth arrow from a list of locations and indices

Add the nth arrow from a list of locations and indices

Usage

add_nth_arrow_xy(
  n,
  ij,
  xy_launch,
  xy_land,
  p = 1,
  r = 0,
  arw_lng = 0.1,
  wt = 1,
  lamp = 1,
  clr = "#CCCCCC"
)

Arguments

n

the arrow to plot

ij

the indices of the arrows to plot

xy_launch

the xy location of the search origin

xy_land

the xy location of the search end

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)