Package index • bittermelon

Bittermelon bitmap and pixmap objects

Bittermelon bitmap and pixmap objects and methods. See also “Modify bitmaps” and “Other bitmap object utilities”.

bm_bitmap(): Bittermelon bitmap matrix object
as_bm_bitmap(): Cast to a bitmap matrix object
is_bm_bitmap(): Test if the object is a bitmap object
bm_pixmap(): Bittermelon pixmap matrix object
as_bm_pixmap(): Cast to a pixmap matrix object
is_bm_pixmap(): Test if the object is a pixmap object
`[`(<bm_matrix>) `[<-`(<bm_bitmap>) `[<-`(<bm_pixmap>): Extract or replace parts of a bitmap/pixmap matrix
as.data.frame(<bm_bitmap>) as.data.frame(<bm_pixmap>): Convert to data frame with pixel (x,y) coordinates
as.matrix(<bm_matrix>): Cast bitmap/pixmap objects to a (normal) matrix
as.array(<bm_bitmap>) as.array(<bm_pixmap>): Cast bitmap/pixmap objects to an array
cbind(<bm_bitmap>) rbind(<bm_bitmap>) cbind(<bm_pixmap>) rbind(<bm_pixmap>): Combine bitmap/pixmap objects by rows or columns
plot(<bm_bitmap>) plot(<bm_pixmap>) as.raster(<bm_bitmap>) as.raster(<bm_pixmap>) col_bitmap: Plot bitmap/pixmap objects
print(<bm_bitmap>) format(<bm_bitmap>) px_unicode px_ascii px_auto(): Print bitmap objects
print(<bm_pixmap>) format(<bm_pixmap>): Print pixmap objects
is_supported_bitmap(): Test if the object is a bitmap object supported by the methods in this package

Bitmap list objects and methods. See also “Modify bitmaps” and “Other bitmap object utilities”.

bm_list(): Bitmap list object
as_bm_list(): Coerce to bitmap list objects
is_bm_list(): Test if the object is a bitmap glyph list object
bm_compose(): Compose graphemes in a bitmap list by applying combining marks
bm_lapply(): Modify bitmap lists
Summary(<bm_list>): max, min, and range for bitmap objects

Bitmap font objects and methods. See also “Modify bitmaps” and “Other bitmap object utilities”.

bm_font(): Bitmap font object
as_bm_font(): Coerce to bitmap font objects
is_bm_font(): Test if the object is a bitmap font object
summary(<bm_font>) print(<summary_bm_font>): Summarize a bitmap font
read_hex() write_hex(): Read and write hex bitmap font files
read_monobit() write_monobit(): Read and write bitmap font files using monobit
read_yaff() write_yaff(): Read and write yaff bitmap font files

Functions to modify bitmaps, bitmap lists, and pixmaps

Ops(<bm_bitmap>) Ops(<bm_pixmap>) Ops(<bm_list>): S3 Ops group generic methods for bitmap objects
bm_bytepad(): Pad bitmap widths to the nearest byte
bm_clamp(): Clamp bitmap values
bm_compress(): Compress bitmaps by a factor of two
bm_distort() bm_downscale(): Resize bitmaps via distortion.
bm_expand(): Expand bitmaps by repeating each row and/or column
bm_extend(): Extend bitmaps on the sides with extra pixels
bm_extract(): Extract part of a bitmap
bm_flip(): Flip (reflect) bitmaps
bm_gray() bm_grey(): Gray a bitmap
bm_invert(): Invert (negate) a bitmap
bm_mask(): Modify bitmaps via masking with a 'mask' bitmap
bm_outline(): Compute "outline" bitmap of a bitmap
bm_overlay(): Merge bitmaps by overlaying one over another
bm_pad(): Adjust bitmap padding lengths
bm_replace(): Replace a color in a bitmap with another color
bm_resize(): Resize bitmaps by trimming and/or extending
bm_rotate(): Rotate bitmaps 0, 90, 180, or 270 degrees
bm_shadow() bm_bold() bm_glow(): Bitmap shadow, bold, and glow effects
bm_shift(): Shift elements within bitmaps
bm_trim(): Trim bitmaps

Other bitmap/pixmap object utility functions

c(<bm_bitmap>) c(<bm_font>) c(<bm_list>) c(<bm_pixmap>): Combine bitmap objects
bm_call(): Execute a function call on bitmap objects
bm_edit(): Edit a bitmap via text editor
bm_padding_lengths(): Compute bitmap padding lengths
bm_pixel_picker(): Bitmap pixel picker
bm_print() bm_format(): Print bitmap objects
bm_heights() bm_widths(): Widths or heights of bitmaps
farming_crops_16x16(): Sprites for twenty farming crops

Unicode utility functions

hex2ucp() int2ucp() str2ucp() name2ucp() is_ucp() block2ucp() range2ucp(): Get Unicode code points
ucp2label() ucp_sort() is_combining_character(): Other Unicode utilities

Color utility functions

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