bm_invert: Invert (negate) a bitmap

In bittermelon: Bitmap Tools

Invert (negate) a bitmap

Description

bm_invert() inverts (negates) a bitmap.

Usage

bm_invert(x)

## S3 method for class 'bm_bitmap'
bm_invert(x)

## S3 method for class 'bm_list'
bm_invert(x)

## S3 method for class 'bm_pixmap'
bm_invert(x)

## S3 method for class ''magick-image''
bm_invert(x)

## S3 method for class 'nativeRaster'
bm_invert(x)

## S3 method for class 'raster'
bm_invert(x)

Arguments

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

Value

Depending on 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")
}

bittermelon documentation built on June 25, 2024, 5:09 p.m.