draw_ray: Draw a Ray

In cursr: Cursor and Terminal Manipulation

Description

Calculate the path of a ray extending and print to screen.

Usage

draw_ray(start, end, lim = c(64, 128), n = 200, text = "x", ...)

Arguments

start	start (row, col) coordinate of the ray
end	either an ending coording, an angle in radians, or a character direction (u, d, l, r, ul, ur, dl, dr)
lim	bounding box dimensions used to calculate ray
n	number of points along curve to calculate
text	character value drawn at coordinate
...	parameters that are passed to style(), including the foreground color fg, background color bg, and attribute attr

Value

NULL

See Also

Other drawing functions: box_at(), draw_arc(), draw_bezier(), draw_circle(), draw_ellipse(), draw_fn(), draw_lerp(), draw_path(), draw_rect(), draw_shape(), fill_circle(), fill_ellipse(), fill_rect(), fill_shape(), grid_at(), grid_mat(), hline_at(), hline(), vline_at(), vline()

Examples

draw_ray(start=c(10,10), end=pi/6)
draw_ray(start=c(10,10), end=pi/6, lim=c(15,15))
draw_ray(start=c(10,10), end=c(4,2))

cursr documentation built on Jan. 13, 2021, 7:35 a.m.