Path Offset

A simple Rust library for offsetting paths, leveraging other powerful libraries for robust geometric calculations.

Features

• Path Offsetting: Easily offset complex paths.
• Multiple Backends: Choose between flo_curves and cavalier_contours for the offsetting algorithm.
• Path Utilities: Includes utilities for path manipulation, such as finding the outer shell of a complex path.
• SVG Path Support: Parse SVG path data and convert paths back to SVG path strings.

Usage

Add this to your Cargo.toml:

[dependencies]
path-offset = "0.1.1"

Offsetting a Path

use path_offset::offset::Offset;
use path_offset::path::Path;
use std::str::FromStr;

let path = Path::from_str("M10,10 L20,10 L20,20 L10,20 Z").unwrap();

// Use one of the available offsetters
let offsetter = path_offset::offset::cavalier_contours::CavalierContours::new(1.0);
let offset_path = offsetter.offset_path(&path).unwrap();

println!("Offset path: {}", offset_path);

Finding the Outer Shell

use path_offset::path::Path;
use std::str::FromStr;

let path = Path::from_str("M0,0 L10,0 L10,10 L0,10 Z M2,2 L8,2 L8,8 L2,8 Z").unwrap();
let outer_shell = path.find_outer_shell().unwrap();

println!("Outer shell: {}", outer_shell);

Backends

This library uses the following backends for path offsetting:

• flo_curves: A robust library for path and curve manipulation.
• cavalier_contours: A fast and reliable library for path offsetting.

You can choose the backend that best suits your needs.

Contributing

Contributions are welcome! Please open an issue or submit a pull request.

License

This project is licensed under the Apache-2.0 License.