C++实现百度坐标(BD09)及GCJ02与WGS84之间的转换
作者：毓树麟风
这篇文章主要为大家详细介绍了C++实现百度坐标(BD09)及GCJ02与WGS84之间的转换的方法，文中的示例代码讲解详细，希望对大家有所帮助
实现代码
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <math.h>
typedef struct _POSITION
{
double longitude;
double latitude;
}POSITION;
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
double translate_lon(double lon,double lat);
double translate_lat(double lon,double lat);
bool outof_China(double lon,double lat);
POSITION bd09togcj02(double bd_lon, double bd_lat);
POSITION gcj02tobd09(double gcj_lon,double gcj_lat);
POSITION gcj02towgs84(double gcj_lon,double gcj_lat);
POSITION wgs84togcj02(double wgs_lon,double wgs_lat);
void pushbutton1();
void pushbutton2();
void pushbutton3();
private:
Ui::MainWindow *ui;
POSITION bd_pos;
POSITION gcj_pos;
POSITION wgs_pos;
double x_PI = 3.14159265358979323846 * 3000.0 / 180.0;
double PI = 3.1415926535897932384626;
double a = 6378245.0;
double ee = 0.00669342162296594323;
};
#endif // MAINWINDOW_H
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
setWindowTitle("Position Translate");
connect(ui->pushButton ,SIGNAL(clicked()),this,SLOT(pushbutton1()));
connect(ui->pushButton_2,SIGNAL(clicked()),this,SLOT(pushbutton2()));
connect(ui->pushButton_3,SIGNAL(clicked()),this,SLOT(pushbutton3()));
}
MainWindow::~MainWindow()
{
delete ui;
}
bool MainWindow::outof_China(double lon, double lat)
{
return(lon<72.004 || lon>137.8374 || lat<0.8293 || lat >55.8271 || false);
}
POSITION MainWindow::bd09togcj02(double bd_lon, double bd_lat)
{
double x = bd_lon - 0.0065;
double y = bd_lat - 0.006;
double z = sqrt(x*x + y*y) - 0.00002*sin(y*x_PI);
double theta = atan2(y,x) - 0.000003*cos(x*x_PI);
gcj_pos.longitude = z*cos(theta);
gcj_pos.latitude = z*sin(theta);
return gcj_pos;
}
POSITION MainWindow::gcj02tobd09(double gcj_lon, double gcj_lat)
{
double z = sqrt(gcj_lon*gcj_lon + gcj_lat*gcj_lat) + 0.00002*sin(gcj_lat * x_PI);
double theta = atan2(gcj_lat,gcj_lon) + 0.000003 * cos(gcj_lon * x_PI);
bd_pos.longitude = z*cos(theta) + 0.0065;
bd_pos.latitude = z*sin(theta) + 0.006;
return bd_pos;
}
double MainWindow::translate_lon(double lon, double lat)
{
double ret = 300.0 + lon +2.0*lat + 0.1*lon*lon +0.1*lon*lat + 0.1*sqrt(abs(lon));
ret += (20.0 * sin(6.0*lon*PI) + 20.0*sin(2.0*lon*PI)) *2.0 / 3.0;
ret += (20.0 * sin(lon*PI) + 40.0*sin(lon/3.0 *PI)) *2.0 /3.0;
ret += (150 * sin(lon/12.0 *PI) + 300.0*sin(lon/30.0 * PI)) *2.0 /3.0;
return ret;
}
double MainWindow::translate_lat(double lon, double lat)
{
double ret = -100 + 2.0*lon + 3.0*lat + 0.2*lat*lat + 0.1*lon*lat + 0.2*sqrt((abs(lon)));
ret += (20.0 *sin(6.0*lon*PI) + 20*sin(2.0*lon*PI)) *2.0 /3.0;
ret += (20.0 *sin(lat*PI) + 40.0*sin(lat/3.0*PI)) *2.0 /3.0;
ret += (160.0*sin(lat/12.0*PI) + 320.0*sin(lat/30.0 *PI)) *2.0 /3.0;
return ret;
}
POSITION MainWindow::gcj02towgs84(double gcj_lon, double gcj_lat)
{
if(outof_China(gcj_lon,gcj_lat))
{
wgs_pos.longitude = gcj_lon;
wgs_pos.latitude = gcj_lat;
return wgs_pos;
}
else
{
double dlat = translate_lat(gcj_lon - 105.0,gcj_lat -35.0);
double dlon = translate_lon(gcj_lon - 105.0,gcj_lat -35.0);
double radlat = gcj_lat/180.0 *PI;
double magic = sin(radlat);
magic = 1 - ee*magic*magic;
double squrtmagic = sqrt(magic);
dlon = (dlon *180.0)/(a/squrtmagic*cos(radlat)*PI);
dlat = (dlat *180.0)/((a*(1-ee))/(magic * squrtmagic)*PI);
wgs_pos.longitude = gcj_lon - dlon;
wgs_pos.latitude = gcj_lat - dlat;
return wgs_pos;
}
}
POSITION MainWindow::wgs84togcj02(double wgs_lon, double wgs_lat)
{
if(outof_China(wgs_lon,wgs_lat))
{
gcj_pos.longitude = wgs_lon;
gcj_pos.latitude = wgs_lat;
return gcj_pos;
}
else
{
double dlat = translate_lat(wgs_lon - 105.0,wgs_lat - 35.0);
double dlon = translate_lon(wgs_lon - 105.0,wgs_lat - 35.0);
double radlat = wgs_lat/180.0 * PI;
double magic = sin(radlat);
magic = 1 - ee*magic*magic;
double squrtmagic = sqrt(magic);
dlon = (dlon *180.0)/(a/squrtmagic*cos(radlat)*PI);
dlat = (dlat *180.0)/((a*(1-ee))/(magic * squrtmagic)*PI);
gcj_pos.longitude = wgs_lon + dlon;
gcj_pos.latitude = wgs_lat +dlat;
return gcj_pos;
}
}
/*************************************************************************
*
* 读取 BD09 坐标，转换为 WGS84 和 GCJ02 坐标
*
***********************************************************************/
void MainWindow::pushbutton1()
{
double bd09_lon = ui->lineEdit_bd09lon->text().toDouble();
double bd09_lat = ui->lineEdit_bd09lat->text().toDouble();
double gcj02_lon = bd09togcj02(bd09_lon,bd09_lat).longitude;
double gcj02_lat = bd09togcj02(bd09_lon,bd09_lat).latitude;
double wgs84_lon = gcj02towgs84(gcj02_lon,gcj02_lat).longitude;
double wgs84_lat =gcj02towgs84(gcj02_lon,gcj02_lat).latitude;
ui->lineEdit_gcj02lon->setText(QString::number(gcj02_lon,'d',9));
ui->lineEdit_gcj02lat->setText(QString::number(gcj02_lat,'d',9));
ui->lineEdit_wgs84lon->setText(QString::number(wgs84_lon,'d',9));
ui->lineEdit_wgs84lat->setText(QString::number(wgs84_lat,'d',9));
}
/*************************************************************************
*
* 读取 GCJ02 坐标，转换为 WGS84 和 BD09 坐标
*
***********************************************************************/
void MainWindow::pushbutton2()
{
double gcj02_lon = ui->lineEdit_gcj02lon->text().toDouble();
double gcj02_lat = ui->lineEdit_gcj02lat->text().toDouble();
double bd09_lon = gcj02tobd09(gcj02_lon,gcj02_lat).longitude;
double bd09_lat = gcj02tobd09(gcj02_lon,gcj02_lat).latitude;
double wgs84_lon = gcj02towgs84(gcj02_lon,gcj02_lat).longitude;
double wgs84_lat = gcj02towgs84(gcj02_lon,gcj02_lat).latitude;
ui->lineEdit_bd09lon->setText(QString::number(bd09_lon,'d',9));
ui->lineEdit_bd09lat->setText(QString::number(bd09_lat,'d',9));
ui->lineEdit_wgs84lon->setText(QString::number(wgs84_lon,'d',9));
ui->lineEdit_wgs84lat->setText(QString::number(wgs84_lat,'d',9));
}
/*************************************************************************
*
* 读取 WGS84 坐标，转换为 GCJ02 和 BD09 坐标
*
***********************************************************************/
void MainWindow::pushbutton3()
{
double wgs84_lon = ui->lineEdit_wgs84lon->text().toDouble();
double wgs84_lat = ui->lineEdit_wgs84lat->text().toDouble();
double gcj02_lon = wgs84togcj02(wgs84_lon,wgs84_lat).longitude;
double gcj02_lat = wgs84togcj02(wgs84_lon,wgs84_lat).latitude;
double bd09_lon = gcj02tobd09(gcj02_lon,gcj02_lat).longitude;
double bd09_lat = gcj02tobd09(gcj02_lon,gcj02_lat).latitude;
ui->lineEdit_bd09lon->setText(QString::number(bd09_lon,'d',9));
ui->lineEdit_bd09lat->setText(QString::number(bd09_lat,'d',9));
ui->lineEdit_gcj02lon->setText(QString::number(gcj02_lon,'d',9));
ui->lineEdit_gcj02lat->setText(QString::number(gcj02_lat,'d',9));
}
算法来源于网上搜集，运行结果如下：
到此这篇关于C++实现百度坐标(BD09)及GCJ02与WGS84之间的转换的文章就介绍到这了,更多相关C++坐标转换内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！