arrowheadr (version 1.0.2)

arrow_head_latex: Make latex arrowhead

Description

Mimics tikz's latex arrowheads, but can make any arrowhead with 2 side curves and an underside.

Usage

arrow_head_latex(
  point = c(1, 0),
  sidecontrols = c(7/12, 1/12, -1/6, 1/4),
  p_barb = c(-2/3, 5/8),
  undercontrols = c(-1/4, 1/6),
  rotate = 0,
  rescale = c(1, 1),
  nudge = c(0, 0),
  transformations = c("rotater", "rescaler", "nudger"),
  n = 101,
  plot = FALSE
)

Value

a matrix

Arguments

point

length-2 vector for point coordinates

sidecontrols

vector of coordinates for control points on sides

p_barb

length-2 vector for barb coordinates

undercontrols

vector of coordinates for control points on underside

rotate

rotation angle in radians

rescale

a single value or 2-length vector for scaling in x and y

nudge

a single value or 2-length vector for nudging in x and y

transformations

a vector of transformation functions

n

number of points in polygon

plot

plot arrowhead if TRUE

Examples

latex_prime <- arrow_head_latex(plot = TRUE)
latex_prime_spaced <-
  arrow_head_latex(nudge = c(.45, 0),
                  rescale = .55,
                  plot = TRUE)
latex_regular <- arrow_head_latex(undercontrols = NULL, plot = TRUE)


latex_flat <- arrow_head_latex(sidecontrols = NULL, plot = TRUE)
latex_pincer <- arrow_head_latex(
  sidecontrols = c(-.5,1, -.5, 2),
  undercontrols = c(.2,1.5),
  p_barb = c(-1,.5),
  nudge = c(.35,0),
  rescale = c(.65,.4),
  plot = TRUE)