@mbtech-nl/bitmap

Interfaces

Interface	Description
FontMetrics	-
ImageRenderOptions	-
LabelBitmap	A 1-bit-per-pixel bitmap. Row-major, MSB-first within each byte.
MultiPlaneRenderOptions	-
PaletteEntry	One ink/foil colour the printer can place on the substrate.
PlaneRenderOptions	Per-plane pre-quantisation overrides. Each field, if omitted, falls back to MultiPlaneRenderOptions.defaults, then to that field's hard default (e.g. threshold: 128, dither: false, gamma: 1).
RawImageData	Raw RGBA image data, compatible with browser ImageData and @napi-rs/canvas ImageData.
TextRenderOptions	-

Type Aliases

Type Alias	Description
BuiltinFont	-
DitherMethod	-
LuminanceWeights	-

Functions

Function	Description
bitmapEquals	Compare two bitmaps for byte-equal equality.
bytesPerRow	Number of packed bytes used to store one row of widthPx pixels.
createBitmap	Allocate an empty (all-white) bitmap.
cropBitmap	Extract a rectangular sub-region from a bitmap.
flipHorizontal	Mirror a bitmap left-to-right.
flipVertical	Mirror a bitmap top-to-bottom.
floydSteinberg	Floyd–Steinberg error-diffusion dither.
getPixel	Read a single pixel from a packed 1bpp bitmap.
getRow	Copy one packed row of a bitmap.
invertBitmap	Swap black and white pixels.
iterRows	Iterate packed rows of a bitmap top-to-bottom.
measureText	Compute the dimensions a renderText call would produce, without allocating a bitmap. Empty strings return { widthPx: 0, heightPx }.
padBitmap	Add white margins around an existing bitmap.
renderImage	Convert RGBA pixel data to a packed 1bpp bitmap.
renderMultiPlaneImage	Convert RGBA pixel data into one 1bpp LabelBitmap per palette entry.
renderText	Render an ASCII string into a packed 1bpp bitmap using the bundled font.
rotateBitmap	Rotate a bitmap clockwise by 90, 180, or 270 degrees.
scaleBitmap	Resize a bitmap to a target height while preserving aspect ratio.
stackBitmaps	Concatenate bitmaps horizontally or vertically.