What's New

2021-11-19T14:37:31Z

Doggie - A Cross-platform Library for Swift

Github Actions codecov Platform GitHub release Swift MIT

Doggie is a foundational library for Apple's swift. It includes mathematics, accelerate, signal processing and graphic functions.

Apps Using This Library

Features

let shape = try Shape(code: "M100 0c0-100-236.60 36.60-150 86.60S36.60-136.60-50-86.60 100 100 100 0z")

let region = ShapeRegion(shape, winding: .nonZero)
let ellipse = ShapeRegion(ellipseIn: shape.boundary)
operation preview
region.union(ellipse) union
region.intersection(ellipse) union
ellipse.subtracting(region) union
region.subtracting(ellipse) union
region.symmetricDifference(ellipse) union
let collection = try FontCollection(data: fontFileData)

if let font = collection.first?.with(size: 64) {

    let string = "Doggie\u{0301}".precomposedStringWithCanonicalMapping

    let glyphs = font.glyphs(with: string.unicodeScalars)
    let advances = glyphs.map { font.advance(forGlyph: $0) }.reductions(0, +)

    var shape = Shape()

    for (advance, glyph) in zip(advances, glyphs) {
        var outline = font.shape(forGlyph: glyph)
        outline.center.x += advance
        shape.append(contentsOf: outline.identity)
    }

    print(shape.encode())
}
let context = ImageContext<ARGB32ColorPixel>(width: 100, height: 100, colorSpace: ColorSpace.sRGB)

let ellipse1 = Shape(ellipseIn: Rect(x: 10, y: 35, width: 55, height: 55))
let ellipse2 = Shape(ellipseIn: Rect(x: 35, y: 10, width: 55, height: 55))

context.draw(shape: ellipse1, winding: .nonZero, color: RGBColorModel(red: 247/255, green: 217/255, blue: 12/255))
context.draw(shape: ellipse1, stroke: Stroke(width: 1, cap: .round, join: .round, color: RGBColorModel()))
context.draw(shape: ellipse2, winding: .nonZero, color: RGBColorModel(red: 234/255, green: 24/255, blue: 71/255))
context.draw(shape: ellipse2, stroke: Stroke(width: 1, cap: .round, join: .round, color: RGBColorModel()))

let image: Image<ARGB32ColorPixel> = context.image

drawing sample

  • others
<svg width="200" height="200" viewBox="0 0 220 220"
     xmlns="http://www.w3.org/2000/svg">
  <filter id="displacementFilter">
     <feTurbulence type="turbulence" baseFrequency="0.05"
        numOctaves="2" result="turbulence"/>
     <feDisplacementMap in2="turbulence" in="SourceGraphic"
        scale="50" xChannelSelector="R" yChannelSelector="G"/>
  </filter>

  <circle cx="100" cy="100" r="100"
     style="filter: url(#displacementFilter)"/>
</svg>
let context = ImageContext<Gray16ColorPixel>(width: 220, height: 220, colorSpace: .default)

context.draw(ellipseIn: Rect(x: 0, y: 0, width: 200, height: 200), color: .black)

var image = context.image

let turbulence: Image<RGBA32ColorPixel> = SVGTurbulence(220, 220, .turbulence, nil, .identity, 0, 0.05, 2)

image = DisplacementMap(image, turbulence, 0, 1, 50)

turbulence

Documents

Documents can find in here.

Status

ColorSpace

Format

  • ICC
  • CIEXYZ
  • CIELab
  • CIELuv
  • Calibrated Gray
  • Calibrated RGB

Rendering Intent

  • perceptual
  • saturation
  • absolute colorimetric
  • relative colorimetric

ImageRep

  • bmp
  • gif
  • jpeg
  • jpeg2000
  • png
  • tiff
  • webp

Font

Format

  • TrueType
  • TrueType/TTC
  • OpenType
  • OpenType/CFF
  • OpenType/CFF2
  • WOFF
  • WOFF/CFF
  • WOFF/CFF2
  • WOFF2

SFNT Tables

  • HEAD
  • POST
  • OS/2
  • MAXP
  • CMAP
  • NAME
  • HHEA
  • HMTX
  • VHEA
  • VMTX
  • LOCA
  • GLYF
  • SBIX
  • FEAT
  • KERX
  • MORX
    • Rearrangement
    • Contextual
    • Ligature
    • Noncontextual
    • Insertion
  • GSUB
  • GPOS
  • GDEF
  • CFF
  • CFF2

CMAP

Platform

The table below lists the available platform/specific values in the order.

platform specific Description
0 max( <= 4 ) Unicode
3 10 Windows, Unicode UCS-4
3 1 Windows, Unicode BMP (UCS-2)
Format
  • Format 0
  • Format 4
  • Format 12
  • Format 14 (Unicode Variation Selectors)

How To Contribute

It's welcome everyone to create a pull request.

License

Doggie is licensed under the MIT license.

Description

  • Swift Tools 5.3.0
View More Packages from this Author

Dependencies

Last updated: Mon Nov 29 2021 16:31:30 GMT-0500 (GMT-05:00)