rust-quadtree

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A region quadtree in Rust

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# rust-quadtree

A quadtree library for searching elements in a 2D space.

![quadtree demo](http://imgur.com/xkjxhfC.png)

## Usage

```rust
extern crate quadtree;

use quadtree::{QuadTree, Bounded, Bounds};

#[deriving(Eq)]
struct Rect {
    x: f32,
    y: f32,
    width: f32,
    height: f32
}

impl Bounded for Rect {
    fn bounds(&self) -> Bounds {
        Bounds{x: self.x, y: self.y, width: self.width, height: self.height}
    }
}

fn main() {
    let mut qt = QuadTree::new(Bounds{x: 0., y: 0., width: 8., height: 8.});
    let r1 = &Rect{x: 0., y: 0., width: 2., height: 2.};
    let r2 = &Rect{x: 3., y: 3., width: 1., height: 1.};
    let r3 = &Rect{x: 1., y: 1., width: 1., height: 1.};
    qt.insert(r1);
    qt.insert(r2);
    qt.insert(r3);
    let results: Vec<&Rect> = qt.query(r3).collect();
    assert!(results.contains(&r1));
}
```

## Installation

The basic library requires only a recent version of Rust. The demo requires [rust-sfml](https://github.com/jeremyletang/rust-sfml), see that project for its dependencies.

Build targets:

```
make lib
make demo
make test
make doc
```

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