measurer.BaiduSphere

measurer.BaiduSphere is the sphere measurer used by Baidu Map, mixing in measurer.Common. Its methods are identical to WGS84Sphere, differing only in the sphere radius (6370996.81). It is an object mixin with no standalone constructor.

import { measurer } from "maptalks";

const m = measurer.Measurer.getInstance("BAIDU");
m.measureLenBetween([116.404, 39.915], [121.47, 31.23]);

Properties / Static Methods

• measure: string — The measurer code, 'BAIDU'.
• sphere: Sphere — The underlying sphere measurer, radius 6370996.81.

Methods

• measureLenBetween(c1, c2): number — Great-circle distance (meters).
• measureArea(coords): number — Closed area of a spherical geometry.
• locate(c, xDist, yDist, out?): Coordinate — Locate a coordinate from a source coordinate by x-axis and y-axis distances.
• rotate(c, pivot, angle): Coordinate — Rotate a coordinate around a pivot by a given angle.
• Additionally inherits measureLength from measurer.Common.