arrowheadr (version 1.0.2)

arrow_head_bezier: make arrowhead from list of bezier control points

Description

make arrowhead from list of bezier control points

Usage

arrow_head_bezier(
  x,
  rotate = 0,
  rescale = c(1, 1),
  nudge = c(0, 0),
  transformations = c("rotater", "rescaler", "nudger"),
  n = 101,
  plot = FALSE,
  show_controls = TRUE
)

Value

a matrix

Arguments

x

list of control points (as vectors or matrices)

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 each bezier curve

plot

plot arrowhead if TRUE

show_controls

show control points if plot = TRUE

Examples

curved_arrowhead <- arrow_head_bezier(list(
  c(1,  0,
    .5, .5,
    .2, .5),
  c(.2, .5,
    .2, .1,
    -.1, .25,
    -.3, .25),
  c(-.3, .25,
    0, 0,
    -.3, -.25),
  c(-.3, -.25,
    -.1, -.25,
    .2,  -.1,
    .2, -.5),
  c(.2, -.5,
    .5, -.5,
    1,  0)
),
plot = TRUE)