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11062/gcoord
============

地理坐标系转换工具

v1.0.0(7mo ago)010PHPPHP >=5.3

Since Oct 10Pushed 7mo agoCompare

[ Source](https://github.com/1106245966/gcoord)[ Packagist](https://packagist.org/packages/11062/gcoord)[ RSS](/packages/11062-gcoord/feed)WikiDiscussions master Synced 1mo ago

READMEChangelog (1)DependenciesVersions (2)Used By (0)

Gcoord
======

[](#gcoord)

**gcoord**(**g**eographic **coord**inates)是一个处理地理坐标系的JS库，用来修正百度地图、高德地图及其它互联网地图坐标系不统一的问题。

支持转换坐标数组和 GeoJSON 数据，无外部依赖，本库是Node.js库gcoord的PHP移植版本，支持多种坐标系转换。

更多信息可以阅读[地理坐标系](https://github.com/hujiulong/gcoord/wiki/%E5%9C%B0%E7%90%86%E5%9D%90%E6%A0%87%E7%B3%BB)

本代码参考自[hujiulong/gcoord](https://github.com/hujiulong/gcoord)转换移植的PHP版本

安装
--

[](#安装)

通过npm安装:

```
composer require 11062/gcoord
```

引入
--

[](#引入)

```
use Gcoord\Gcoord;
use Gcoord\CRSTypes;
```

使用
--

[](#使用)

例如从手机的GPS得到一个经纬度坐标，需要将其展示在百度地图上，则应该将当前坐标从[WGS-84](https://github.com/hujiulong/gcoord/wiki/%E5%9C%B0%E7%90%86%E5%9D%90%E6%A0%87%E7%B3%BB#wgs-84---%E4%B8%96%E7%95%8C%E5%A4%A7%E5%9C%B0%E6%B5%8B%E9%87%8F%E7%B3%BB%E7%BB%9F)坐标系转换为[BD-09](https://github.com/hujiulong/gcoord/wiki/%E5%9C%B0%E7%90%86%E5%9D%90%E6%A0%87%E7%B3%BB#bd-09---%E7%99%BE%E5%BA%A6%E5%9D%90%E6%A0%87%E7%B3%BB)坐标系

```
// WGS84转GCJ02
$wgs84Coord = [116.403988, 39.914266];
$gcj02Coord = Gcoord::transform($wgs84Coord, CRSTypes::WGS84, CRSTypes::GCJ02);
echo "WGS84转GCJ02结果：" . print_r($gcj02Coord, true) . "\n\n";

// GCJ02转BD09
$bd09Coord = Gcoord::transform($gcj02Coord, CRSTypes::GCJ02, CRSTypes::BD09);
echo "GCJ02转BD09结果：" . print_r($bd09Coord, true) . "\n\n";

// BD09转BD09MC
$bd09MCCoord = Gcoord::transform($bd09Coord, CRSTypes::BD09, CRSTypes::BD09MC);
echo "BD09转BD09MC结果：" . print_r($bd09MCCoord, true) . "\n\n";

// EPSG3857转WGS84
$epsg3857Coord = Gcoord::transform([13378583.21, 3573214.56], CRSTypes::EPSG3857, CRSTypes::WGS84);
echo "EPSG3857转WGS84结果：" . print_r($epsg3857Coord, true) . "\n\n";

// GeoJSON对象转换
$geojson = [
    'type' => 'Feature',
    'geometry' => [
    'type' => 'Point',
    'coordinates' => [116.403988, 39.914266]
],
'properties' => ['name' => '测试点']
];
$transformedGeojson = Gcoord::transform($geojson, CRSTypes::WGS84, CRSTypes::GCJ02);
echo "GeoJSON转换结果：" . json_encode($transformedGeojson, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) . "\n";
```

同时gcoord还可以转换GeoJSON对象的坐标系，详细使用方式可以参考[API](#api)

API
---

[](#api)

### Gcoord::transform(input, from, to, isFloat=true)

[](#gcoordtransforminput-from-to-isfloattrue)

进行坐标转换

**参数**

- `input` **[GeoJSON](https://tools.ietf.org/html/rfc7946#page-6) | Array<number>** GeoJSON对象，或GeoJSON字符串，或经纬度数组
- `from` **[CRSTypes](#CRSTypes)** 当前坐标系
- `to` **[CRSTypes](#CRSTypes)** 目标坐标系
- `isFloat` **boolean** 默认值为：true，是否返回浮点，如果为true就是返回浮点类型，如果为false则返回php的高精度字符串的值

**返回值**

**[GeoJSON](https://tools.ietf.org/html/rfc7946#page-6) | Array<number>**

返回数组或GeoJSON数组（由输入决定），**注意：当输入为GeoJSON时，transform会改变输入对象**

### CRSTypes

[](#crstypes)

CRSTypes为坐标系，目标支持以下几种坐标系

CRS 坐标格式说明 CRSTypes::WGS84\[lng,lat\]WGS-84坐标系，GPS设备获取的经纬度坐标CRSTypes::GCJ02\[lng,lat\]GCJ-02坐标系，google中国地图、soso地图、aliyun地图、mapabc地图和高德地图所用的经纬度坐标CRSTypes::BD09\[lng,lat\]BD-09坐标系，百度地图采用的经纬度坐标CRSTypes::BD09LL\[lng,lat\]同BD09CRSTypes::BD09MC\[x,y\]BD-09米制坐标，百度地图采用的米制坐标，单位：米CRSTypes::BD09Meter\[x,y\]同BD09MCCRSTypes::Baidu\[lng,lat\]百度坐标系，BD-09坐标系别名，同BD-09CRSTypes::BMap\[lng,lat\]百度地图，BD-09坐标系别名，同BD-09CRSTypes::AMap\[lng,lat\]高德地图，同GCJ-02CRSTypes::WebMercator\[x,y\]Web Mercator投影，墨卡托投影，同EPSG3857，单位：米CRSTypes::WGS1984\[lng,lat\]WGS-84坐标系别名，同WGS-84CRSTypes::EPSG4326\[lng,lat\]WGS-84坐标系别名，同WGS-84CRSTypes::EPSG3857\[x,y\]Web Mercator投影，同WebMercator，单位：米CRSTypes::EPSG900913\[x,y\]Web Mercator投影，同WebMercator，单位：米**支持更多坐标系？**gcoord的目标是处理web地图中的坐标，目前支持的坐标系已经能满足绝大部分要求了，同时gcoord也能保持轻量。

###  Health Score

27

—

LowBetter than 49% of packages

Maintenance64

Regular maintenance activity

Popularity5

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity30

Early-stage or recently created project

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

220d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/8647e77b5b8ff1d65a2889845feae13fb7456488d8aa121fc0a4f83761a02161?d=identicon)[1106245966](/maintainers/1106245966)

---

Top Contributors

[![1106245966](https://avatars.githubusercontent.com/u/24835966?v=4)](https://github.com/1106245966 "1106245966 (6 commits)")

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