Polylabel-rs

A Rust implementation of the Polylabel algorithm

How to Use

```rust extern crate polylabel; use polylabel::polylabel;

extern crate geo; use geo::{Point, LineString, Polygon};

let coords = vec![ (0.0, 0.0), (4.0, 0.0), (4.0, 1.0), (1.0, 1.0), (1.0, 4.0), (0.0, 4.0), (0.0, 0.0) ]; let ls = LineString(coords.iter().map(|e| Point::new(e.0, e.1)).collect()); let poly = Polygon(ls, vec![]); let label_pos = polylabel(&poly, &0.10); // Point(0.5625, 0.5625) ```

Documentation

https://urschrei.github.io/polylabel-rs/polylabel/index.html

FFI

Call polylabel_ffi with the following three mandatory arguments: - Array (a void pointer to an array of two-element c_doubles, the exterior Polygon ring) - WrapperArray (a void pointer to an array of Arrays, the interior Polygon rings, empty if there are none) - tolerance, a c_float

The function returns a struct with two c_double fields: - x_pos - y_pos

A Python example is available in ffi.py

Binaries

Binary libs for: - x86_64 *nix (built using manylinux1, thus easy to include in Python 2.7 / 3.4 wheels) and OS X - i686 and x86_64 Windows

are available in releases.

License

MIT