```toml
flo_curves = "0.7"
```

flo_curves
==========

`flo_curves` is a library of routines for inspecting and manipulating curves, with a focus on cubic Bézier curves. In 
this library, you'll find routines for computing points on curves, performing collision detection between curves and 
lines or other curves, all the way up to routines for combining paths made up of multiple curves.

Anyone doing any work with Bézier curves will likely find something in this library that is of use, but its range of
functions makes it particularly useful for collision detection or performing path arithmetic.

A set of curve and coordinate types are provided by the library, as well as a set of traits that can be implemented
on any types with suitable properties. Implementing these traits makes it possible to add the extra features of this
library to any existing code that has its own way of representing coordinates, curves or paths.

Examples
========

Creating a curve:

```Rust
use flo_curves::*;
use flo_curves::bezier;

let curve = bezier::Curve::from_points(Coord2(1.0, 2.0), (Coord2(2.0, 0.0), Coord2(3.0, 5.0)), Coord2(4.0, 2.0));
```

Finding a point on a curve:

```Rust
use flo_curves::bezier;

let pos = curve.point_at_pos(0.5);
```

Intersections:

```Rust
use flo_curves::bezier;

for (t1, t2) in bezier::curve_intersects_curve_clip(curve1, curve2, 0.01) {
    let pos = curve1.point_at_pos(t1);
    println!("Intersection, curve1 t: {}, curve2 t: {}, position: {}, {}", t1, t2, pos.x(), pos.y());
}
```

Creating a path:

```Rust
use flo_curves::bezier;
use flo_curves::bezier::path::*;

let rectangle1 = BezierPathBuilder::<SimpleBezierPath>::start(Coord2(1.0, 1.0))
    .line_to(Coord2(5.0, 1.0))
    .line_to(Coord2(5.0, 5.0))
    .line_to(Coord2(1.0, 5.0))
    .line_to(Coord2(1.0, 1.0))
    .build();
```

Path arithmetic:

```Rust
use flo_curves::bezier::path::*;

let rectangle_with_hole = path_sub::<SimpleBezierPath>(&vec![rectangle], &vec![circle], 0.01);
```

---

![flo_curves logo](./logo-small.png)