136 lines
2.7 KiB
Markdown
136 lines
2.7 KiB
Markdown
# Pixie - A full-featured 2D graphics library for Nim
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⚠️ WARNING: This library is still in heavy development. ⚠️
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Pixie is a 2D graphics library similar to [Cairo](https://www.cairographics.org/) and [Skia](https://skia.org) written (almost) entirely in Nim.
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This library is being actively developed and is not yet ready for use. Since you've managed to stumble onto it, give it a star and check back soon!
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`nimble install pixie`
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Features:
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* Drawing paths, shapes and curves, with even-odd and non-zero windings.
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* Strokes with joins and caps.
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* Shadows, glows and blurs.
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* Complex masking: Subtract, Intersect, Exclude.
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* Complex blends: Darken, Multiply, Color Dodge, Hue, Luminosity... etc.
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* Pixel perfect AA quality.
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* Supported file formats: PNG, BMP, JPG, SVG + more in development.
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## Testing
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`nimble test`
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## Examples
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### Square
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[examples/square.nim](examples/square.nim)
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```nim
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var p: Path
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p.rect(50, 50, 100, 100)
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image.fillPath(p, rgba(255, 0, 0, 255))
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```
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### Line
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[examples/line.nim](examples/line.nim)
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```nim
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var p: Path
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p.moveTo(25, 25)
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p.lineTo(175, 175)
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image.strokePath(
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p,
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parseHtmlColor("#FF5C00").rgba,
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strokeWidth = 10,
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)
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```
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### Rounded rectangle
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[examples/rounded_rectangle.nim](examples/rounded_rectangle.nim)
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```nim
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let
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x = 50.0
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y = 50.0
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w = 100.0
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h = 100.0
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r = 25.0
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var path: Path
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path.roundedRect(vec2(x, y), vec2(w, h), r, r, r, r)
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image.fillPath(path, rgba(0, 255, 0, 255))
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```
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### Heart
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[examples/heart.nim](examples/heart.nim)
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```nim
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image.fillPath(
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"""
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M 20 60
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A 40 40 90 0 1 100 60
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A 40 40 90 0 1 180 60
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Q 180 120 100 180
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Q 20 120 20 60
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z
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""",
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parseHtmlColor("#FC427B").rgba
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)
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```
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### Shadow
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[examples/shadow.nim](examples/shadow.nim)
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```nim
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var p: Path
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p.polygon(100, 100, 70, sides = 8)
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p.closePath()
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var polyImage = newImage(200, 200)
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polyImage.fillPath(p, rgba(255, 255, 255, 255))
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image.draw(polyImage.shadow(
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offset = vec2(2, 2),
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spread = 2,
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blur = 10,
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color = rgba(0, 0, 0, 200)
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))
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image.draw(polyImage)
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```
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### Blur
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[examples/blur.nim](examples/blur.nim)
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```nim
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var p: Path
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p.polygon(100, 100, 70, sides = 6)
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p.closePath()
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let mask = newMask(200, 200)
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mask.fillPath(p)
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blur.blur(20)
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blur.draw(mask, blendMode = bmMask)
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image.draw(trees)
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image.draw(blur)
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```
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### Tiger
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[examples/tiger.nim](examples/tiger.nim)
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```nim
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let tiger = readImage("examples/data/tiger.svg")
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image.draw(
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tiger,
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translate(vec2(100, 100)) *
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scale(vec2(0.2, 0.2)) *
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translate(vec2(-450, -450))
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)
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```
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