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稳态 Z 曲线

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安装使用

const z = require('z-curve');

z.encode(lat, lng, scala);

z.decode(z_val);

在浏览器中测试: https://npm.runkit.com/z-curve

API

encode(latitude, longitude, scala = 0)

Encode a pair of latitude and longitude values into a z-curve.

const z = require('z-curve');

z.encode(32.05, 118.78333) === 471947;

decode(z_value)

Decode a hash string into pair of latitude and longitude values. A javascript object is returned with latitude and longitude keys.

const z = require('z-curve');

z.decode(471947);
// {
//   lat: 32.16796875,
//   lng: 118.65234375
// }

性能测试

测试环境:

  • CPU: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz (8 核心 16 线程)
  • Memory: 72 GB 2667 MHz DDR4
  • GPU: Radeon Pro 580X 8 GB

参考资料