JarCasting
JarCasting JarCasting

mushrooms

52 bit GeoHash search algorithm.

License

License
Categories

Categories

Geo Business Logic Libraries Geospatial
GroupId

GroupId

com.github.wenhao
ArtifactId

ArtifactId

geohash
Last Version

Last Version

1.0.2
Release Date

Release Date
Type

Type

jar
Description

Description

mushrooms
52 bit GeoHash search algorithm.
Project URL

Project URL

https://github.com/wenhao/geohash
Source Code Management

Source Code Management

https://github.com/wenhao/geohash

Download geohash

Filename Size
geohash-1.0.2.pom
geohash-1.0.2.jar 7 KB
geohash-1.0.2-sources.jar 4 KB
geohash-1.0.2-javadoc.jar 32 KB
Browse

How to add to project

<!-- https://jarcasting.com/artifacts/com.github.wenhao/geohash/ -->
<dependency>
    <groupId>com.github.wenhao</groupId>
    <artifactId>geohash</artifactId>
    <version>1.0.2</version>
</dependency>
// https://jarcasting.com/artifacts/com.github.wenhao/geohash/
implementation 'com.github.wenhao:geohash:1.0.2'
// https://jarcasting.com/artifacts/com.github.wenhao/geohash/
implementation ("com.github.wenhao:geohash:1.0.2")
'com.github.wenhao:geohash:jar:1.0.2'
<dependency org="com.github.wenhao" name="geohash" rev="1.0.2">
  <artifact name="geohash" type="jar" />
</dependency>
@Grapes(
@Grab(group='com.github.wenhao', module='geohash', version='1.0.2')
)
libraryDependencies += "com.github.wenhao" % "geohash" % "1.0.2"
[com.github.wenhao/geohash "1.0.2"]

Dependencies

There are no dependencies for this project. It is a standalone project that does not depend on any other jars.

Project Modules

There are no modules declared in this project.

Build Status

GeoHash

52位GeoHash算法，精度约0.6米，查找附近点，广泛用于需要基于LBS搜索的场景，例如滴滴、微信、陌陌、美团等.

功能

  • 二维坐标转一维长整形
  • 根据距离搜索目标附近9个(8个相邻区域和1个中心区域)候选区域
  • 计算坐标之间的距离(跟实际的百度导航距离有偏差)

精度

GeoHash长度 正方形边长(米)
52 0.597
50 1.193
... ...
32 610.984
30 1221.969
... ...

Gradle

repositories {
  jcenter()
}

dependencies {
  compile 'com.github.wenhao:geohash:1.0.2'
}

Maven

<dependency>
  <groupId>com.github.wenhao</groupId>
  <artifactId>geohash</artifactId>
  <version>1.0.0</version>
</dependency>

例子

结合Redis的例子

Copyright and license

Copyright 2016~2018 Wen Hao

Licensed under Apache License

Versions

Version
1.0.2
1.0.0