Class LineUtil

public static clipSegment(a: Point, b: Point, bounds: Bounds)

Clips the segment a to b by rectangular bounds (modifying the segment points directly!). Used by Leaflet to only show polyline points that are on the screen or near, increasing performance.

Parameters

• a: Point

• b: Point

• bounds: Bounds

public static closestPointOnSegment(p: Point, p1: Point, p2: Point): number

Returns the closest point from a point p on a segment p1 to p2.

Parameters

• p: Point

• p1: Point

• p2: Point

Returns

number

public static pointToSegmentDistance(p: Point, p1: Point, p2: Point): number

Returns the distance between point p and segment p1 to p2.

Parameters

• p: Point

• p1: Point

• p2: Point

Returns

number

public static simplify(points: Point[], tolerance: number): Point[]

Dramatically reduces the number of points in a polyline while retaining its shape and returns a new array of simplified points. Used for a huge performance boost when processing/displaying Leaflet polylines for each zoom level and also reducing visual noise. tolerance affects the amount of simplification (lesser value means higher quality but slower and with more points). Also released as a separated micro-library Simplify.js.

Parameters

• points: Point[]

• tolerance: number

Returns

Point[]