bittermelon (version 2.2.1)

Ops.bm_bitmap: S3 Ops group generic methods for bitmap objects

Description

The S3 Ops group generic methods for bm_bitmap() objects are simply the result of the generic integer matrix method cast back to a bm_bitmap() object (which is an integer matrix). The S3 Ops group generic methods for bm_list() and bm_font() objects simply returns another object with that operator applied to every bitmap in the original object.

Usage

# S3 method for bm_bitmap
Ops(e1, e2)
# S3 method for bm_pixmap
Ops(e1, e2)
# S3 method for bm_list
Ops(e1, e2)

Value

The various Ops.bm_bitmap and Ops.bm_pixmap methods return a bm_bitmap() object. The various Ops.bm_list methods return a bm_list() object.

Arguments

e1, e2

objects.

See Also

base::Ops

Examples

font_file <- system.file("fonts/spleen/spleen-8x16.hex.gz", package = "bittermelon")
font <- read_hex(font_file)

# Examples applied to individual bitmaps
capital_r <- font[[str2ucp("R")]]
print(!capital_r)
capital_b <- font[[str2ucp("B")]]
print(capital_r & capital_b)
print(capital_r | capital_b)
print(capital_r + 1L)
print(capital_r + 1L > 1L)

# Examples applied to `bm_list()` objects
bml <- font[c("U+0023", "U+0052", "U+0053", "U+0054", "U+0041", "U+0054", "U+0053")] # #RSTATS
bml <- as_bm_list(bml)
bm <- do.call(cbind, bml)
print(bm)

bml <- !bml
bm <- do.call(cbind, bml)
print(bm)

bml <- 2 * (bml + 1L)
bm <- do.call(cbind, bml)
print(bm)

crops <- farming_crops_16x16()
corn <- crops$corn$portrait
print(corn == col2hex("transparent"))