bittermelon (version 2.2.1)

bm_invert: Invert (negate) a bitmap

Description

bm_invert() inverts (negates) a bitmap.

Usage

bm_invert(x)
# S3 method for bm_bitmap
bm_invert(x)
# S3 method for bm_list
bm_invert(x)
# S3 method for bm_pixmap
bm_invert(x)
# S3 method for `magick-image`
bm_invert(x)
# S3 method for nativeRaster
bm_invert(x)
# S3 method for raster
bm_invert(x)

Value

Depending on x either a bm_bitmap(), bm_font(), bm_list(), magick-image, "nativeRaster", bm_pixmap(), or raster object.

Arguments

x

Either a bm_bitmap(), bm_font(), bm_list(), "magick-image", "nativeRaster", bm_pixmap(), or "raster" object.

Examples

font_file <- system.file("fonts/spleen/spleen-8x16.hex.gz", package = "bittermelon")
font <- read_hex(font_file)
capital_r <- as_bm_bitmap("R", font = font)
capital_r_inverted <- bm_invert(capital_r)
print(capital_r_inverted)

corn <- farming_crops_16x16()$corn$portrait
corn_inverted <- bm_invert(corn)
if (cli::is_utf8_output() && cli::num_ansi_colors() >= 256L) {
  print(corn_inverted, compress = "v", bg = "black")
}