z-curve

Stationary Z Curve

Usage no npm install needed!

<script type="module">
  import zCurve from 'https://cdn.skypack.dev/z-curve';
</script>

README

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 lat and lng keys.

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

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

参考资料