coordtransform

package module
v0.0.0-...-0108784 Latest Latest
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Published: Jul 8, 2022 License: MIT Imports: 1 Imported by: 8

README

coordtransform Go Report Card

提供百度坐标系(bd-09)、火星坐标系(国测局坐标系、gcj02)、WGS84坐标系的相互转换,基于 Go 语言,无特殊依赖。

python版本:https://github.com/wandergis/coordTransform_py

命令行版本(支持模块或在命令行直接转换geojson数据):https://github.com/wandergis/coordtransform-cli

js版本:https://github.com/wandergis/coordtransform

Features

Installation

go get github.com/qichengzx/coordtransform

Quick Start

package main

import(
	"fmt"
	"github.com/qichengzx/coordtransform"
)

func main() {
	fmt.Println(coordtransform.BD09toGCJ02(116.404, 39.915))
	fmt.Println(coordtransform.GCJ02toBD09(116.404, 39.915))
	fmt.Println(coordtransform.WGS84toGCJ02(116.404, 39.915))
	fmt.Println(coordtransform.GCJ02toWGS84(116.404, 39.915))
	fmt.Println(coordtransform.BD09toWGS84(116.404, 39.915))
	fmt.Println(coordtransform.WGS84toBD09(116.404, 39.915))
}

Benchmarks

Run on MacBook Pro (13-inch, Early 2015) Go version go1.10 darwin/amd64
goos: darwin
goarch: amd64
pkg: coordtransform
BenchmarkBD09toGCJ02-4    	20000000	        84.0 ns/op
BenchmarkGCJ02toBD09-4    	20000000	        91.8 ns/op
BenchmarkWGS84toBD09-4    	 5000000	       398 ns/op
BenchmarkGCJ02toWGS84-4   	10000000	       252 ns/op
BenchmarkBD09toWGS84-4    	 5000000	       352 ns/op
BenchmarkWGS84toGCJ02-4   	 5000000	       296 ns/op

License

This project is under the MIT License.

Documentation

Index

Constants

View Source
const (
	X_PI   = math.Pi * 3000.0 / 180.0
	OFFSET = 0.00669342162296594323
	AXIS   = 6378245.0
)

Variables

This section is empty.

Functions

func BD09toGCJ02

func BD09toGCJ02(lon, lat float64) (float64, float64)

BD09toGCJ02 百度坐标系->火星坐标系

func BD09toWGS84

func BD09toWGS84(lon, lat float64) (float64, float64)

BD09toWGS84 百度坐标系->WGS84坐标系

func GCJ02toBD09

func GCJ02toBD09(lon, lat float64) (float64, float64)

GCJ02toBD09 火星坐标系->百度坐标系

func GCJ02toWGS84

func GCJ02toWGS84(lon, lat float64) (float64, float64)

GCJ02toWGS84 火星坐标系->WGS84坐标系

func WGS84toBD09

func WGS84toBD09(lon, lat float64) (float64, float64)

WGS84toBD09 WGS84坐标系->百度坐标系

func WGS84toGCJ02

func WGS84toGCJ02(lon, lat float64) (float64, float64)

WGS84toGCJ02 WGS84坐标系->火星坐标系

Types

This section is empty.

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