Polymorpher

A library for creating and morphing potentially rounded polygons. Based on the Kotlin implementation of Shape Morph from M3 Expressive.

Features

• kurbo: implements PathBuilder for kurbo::BezPath.
• skia: implements PathBuilder for skia_safe::PathBuilder and skia_safe::Path.
• tiny-skia: implements PathBuilder for tiny_skia::PathBuilder.
• lyon: implements PathBuilder for everything that implements lyon's PathBuilder.

Example with lyon

#[cfg(feature = "lyon")]
use lyon_path::Builder as PathBuilder;
use polymorpher::{
    CornerRounding, RoundedPoint,
    RoundedPolygon, geometry::Point
};

let polygon = RoundedPolygon::from_points(
    &[
        RoundedPoint::new(
            Point::new(0.499, 1.023),
            CornerRounding::smoothed(0.241, 0.778)
        ),
        RoundedPoint::new(
            Point::new(-0.005, 0.792),
            CornerRounding::new(0.208)
        ),
        RoundedPoint::new(
            Point::new(0.073, 0.258),
            CornerRounding::new(0.228)
        ),
        RoundedPoint::new(
            Point::new(0.433, -0.000),
            CornerRounding::new(0.491)
        ),
    ],
    1,
    true,
)
.normalized()
.transformed(|point| point * 128.0);

#[cfg(feature = "lyon")]
let path = polygon.as_path::<PathBuilder>(false, true);

// Render it however you want!

MSRV

The Minimum Supported Rust Version is currently 1.85.1.

License

Licensed under the Apache License, Version 2.0 to be compatible with the AOSP. This project may not be copied, modified, or distributed except according to those terms.