npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

tianditu-wechat-coordinate

v0.1.1

Published

Convert Tianditu WGS84/CGCS2000 coordinates to the GCJ-02 coordinates used by WeChat maps.

Readme

tianditu-wechat-coordinate

将天地图常见的 WGS84/CGCS2000 经纬度转换为微信小程序地图使用的 GCJ-02 坐标。

安装

npm install tianditu-wechat-coordinate

使用

import { wgs84ToGcj02 } from "tianditu-wechat-coordinate";

const coordinate = wgs84ToGcj02({
  latitude: 40.262638,
  longitude: 116.226886,
});

批量转换接口返回的轨迹点:

const points = apiPoints.map(({ lat, lng }) =>
  wgs84ToGcj02({ latitude: Number(lat), longitude: Number(lng) }),
);

注意事项

  • 输入和输出字段均为 latitude、longitude。
  • 中国大陆范围外的坐标会原样返回。
  • 已是 GCJ-02 的坐标不要再次转换,否则会产生二次偏移。
  • CGCS2000 与 WGS84 在一般地图展示场景中差异很小,本包按 WGS84 到 GCJ-02 的方式处理。

License

MIT