mushrooms

52 bit GeoHash search algorithm.

License	The Apache Software License, Version 2.0
Categories	Geo Business Logic Libraries Geospatial
GroupId	com.github.wenhao
ArtifactId	geohash
Last Version	1.0.2
Release Date	Nov 13, 2018
Type	jar
Description	mushrooms 52 bit GeoHash search algorithm.
Project URL	https://github.com/wenhao/geohash
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

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.github.wenhao/geohash/ -->
<dependency>
    <groupId>com.github.wenhao</groupId>
    <artifactId>geohash</artifactId>
    <version>1.0.2</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.github.wenhao/geohash/
implementation 'com.github.wenhao:geohash:1.0.2'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.github.wenhao/geohash/
implementation ("com.github.wenhao:geohash:1.0.2")

Apache Buildr

'com.github.wenhao:geohash:jar:1.0.2'

Apache Ivy

<dependency org="com.github.wenhao" name="geohash" rev="1.0.2">
  <artifact name="geohash" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.github.wenhao', module='geohash', version='1.0.2')
)

Scala SBT

libraryDependencies += "com.github.wenhao" % "geohash" % "1.0.2"

Leiningen

[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.

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 Nov 13, 2018
1.0.0 Nov 30, 2015