Add a grid of lines to overlay the surface of an x3p object.
Lines are added to a mask. In case no mask exists, one is created.
Usage
x3p_add_grid(
x3p,
spaces,
size = c(1, 3, 5),
color = c("grey50", "black", "darkred")
)
Arguments
- x3p
x3p object
- spaces
space between grid lines, doubled for x
- size
width (in pixels) of the lines
- color
(vector of) character values to describe color of lines
Value
x3p object with added vertical lines in the mask
Examples
if (FALSE) { # \dontrun{
logo <- x3p_read(system.file("csafe-logo.x3p", package = "x3ptools"))
# ten vertical lines across:
logoplus <- x3p_add_grid(logo,
spaces = 50e-6, size = c(1, 3, 5),
color = c("grey50", "black", "darkred")
)
x3p_image(logoplus, size = c(741, 419), zoom = 0.5)
} # }