Struct geom::find_closest::FindClosest

pub struct FindClosest<K> {
    geometries: BTreeMap<K, LineString<f64>>,
    quadtree: QuadTree<K>,
}

A quad-tree to quickly find the closest points to some polylines.

Fields

geometries: BTreeMap<K, LineString<f64>>

quadtree: QuadTree<K>

Implementations

impl<K> FindClosest<K> where
    K: Clone + Ord + Debug, 

pub fn new(bounds: &Bounds) -> FindClosest<K>

Creates the quad-tree, limited to points contained in the boundary.

pub fn add(&mut self, key: K, pts: &[Pt2D])

Add an object to the quadtree, remembering some key associated with the points. TODO This doesn’t properly handle single points, and will silently fail by never returning any matches.

pub fn all_close_pts(
    &self,
    query_pt: Pt2D,
    max_dist_away: Distance
) -> Vec<(K, Pt2D, Distance)>

For every object within some distance of a query point, return the (object’s key, point on the object’s polyline, distance away).

pub fn closest_pt(
    &self,
    query_pt: Pt2D,
    max_dist_away: Distance
) -> Option<(K, Pt2D)>

Finds the closest point on the existing geometry to the query pt.