pp_utils: Miscellaneous 'piecepackr' utility functions

In piecepackr: Board Game Graphics

Miscellaneous piecepackr utility functions

Description

cleave() converts a delimiter separated string into a vector. inch(x) is equivalent to grid::unit(x, "in"). is_color_invisible() tells whether the color is transparent (and hence need not be drawn).

Usage

is_color_invisible(col)

inch(inches)

cleave(s, sep = ",", float = FALSE, color = FALSE)

file2grob(file, distort = TRUE)

Arguments

col	Color
inches	Number representing number of inches
s	String to convert
sep	Delimiter (defaults to ",")
float	If TRUE cast to numeric
color	if TRUE convert empty strings to "transparent"
file	Filename of image
distort	Logical value of whether one should preserve the aspect ratio or distort to fit the area it is drawn in

Examples

 cleave("0.5,0.2,0.4,0.5", float=TRUE)
 cleave("black,darkred,#050EAA,,", color=TRUE)

 is_color_invisible("transparent")
 is_color_invisible(NA)
 is_color_invisible("blue")
 is_color_invisible("#05AE9C")

 if (requireNamespace("grid", quietly = TRUE)) {
     identical(inch(1), grid::unit(1, "inch"))
 }

piecepackr documentation built on June 8, 2025, 12:26 p.m.