iOS中定位当前位置坐标及转换为火星坐标的方法
这篇文章主要介绍了iOS中获取当前位置坐标及转换为火星坐标的方法,这里的火星坐标指的是我国专门研制的一种加密的坐标系统...需要的朋友可以参考下
定位和位置信息获取
定位和反查位置信息要加载两个动态库CoreLocation.framework和MapKit.framework一个获取坐标一个提供反查
复制代码代码如下:
//appDelgate.h
#import
#import
#import
@interfaceAppDelegate:UIResponder
@property(strong,nonatomic)UIWindowwindow;
@end
复制代码代码如下:
#import"AppDelegate.h"
@implementationAppDelegate
-(BOOL)application:(UIApplication)applicationdidFinishLaunchingWithOptions:(NSDictionary)launchOptions
{
self.window=[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]];
//Overridepointforcustomizationafterapplicationlaunch.
self.window.backgroundColor=[UIColorwhiteColor];
[self.windowmakeKeyAndVisible];
UIButtonbutton=[UIButtonbuttonWithType:UIButtonTypeContactAdd];
button.frame=CGRectMake(0,100,100,30);
[buttonsetTitle:@"定位"forState:UIControlStateNormal];
[buttonaddTarget:selfaction:@selector(test)forControlEvents:UIControlEventTouchUpInside];
UILabellabel=[[UILabelalloc]initWithFrame:CGRectMake(0,150,320,30)];
label.tag=101;
label.text=@"等待定位中....";
[self.windowaddSubview:label];
[labelrelease];
[self.windowaddSubview:button];
returnYES;
}
-(void)test{
CLLocationManagerlocationManager=[[CLLocationManageralloc]init];
//设置定位精度，十米，百米，最好
[locationManagersetDesiredAccuracy:kCLLocationAccuracyNearestTenMeters];
locationManager.delegate=self;
//开始时时定位
[locationManagerstartUpdatingLocation];
}
//错误信息
-(void)locationManager:(CLLocationManager)managerdidFailWithError:(NSError)error{
NSLog(@"error");
}
//6.0以上调用这个函数
-(void)locationManager:(CLLocationManager)managerdidUpdateLocations:(NSArray)locations{
NSLog(@"%d",[locationscount]);
CLLocationnewLocation=locations[0];
CLLocationCoordinate2DoldCoordinate=newLocation.coordinate;
NSLog(@"旧的经度：%f,旧的纬度：%f",oldCoordinate.longitude,oldCoordinate.latitude);
//CLLocationnewLocation=locations[1];
//CLLocationCoordinate2DnewCoordinate=newLocation.coordinate;
//NSLog(@"经度：%f,纬度：%f",newCoordinate.longitude,newCoordinate.latitude);
//计算两个坐标距离
//floatdistance=[newLocationdistanceFromLocation:oldLwww.hunanwang.netocation];
//NSLog(@"%f",distance);
[managerstopUpdatingLocation];
//------------------位置反编码---5.0之后使用-----------------
CLGeocodergeocoder=[[CLGeocoderalloc]init];
[geocoderreverseGeocodeLocation:newLocation
completionHandler:^(NSArrayplacemarks,NSErrorerror){
for(CLPlacemarkplaceinplacemarks){
UILabellabel=(UILabel)[self.windowviewWithTag:101];
label.text=place.name;
NSLog(@"name,%@",place.name);//位置名
//NSLog(@"thoroughfare,%@",place.thoroughfare);//街道
//NSLog(@"subThoroughfare,%@",place.subThoroughfare);//子街道
//NSLog(@"locality,%@",place.locality);//市
//NSLog(@"subLocality,%@",place.subLocality);//区
//NSLog(@"country,%@",place.country);//国家
}
}];
}
//6.0调用此函数
-(void)locationManager:(CLLocationManager)managerdidUpdateToLocation:(CLLocation)newLocationfromLocation:(CLLocation)oldLocation{
NSLog(@"%@",@"ok");
}
@end
转换为火星坐标
这个写的公共类叫做:GPScombineClass类主要展示GPS位置的定位，GPS坐标的获取，然后从手机坐标转换成火星坐标，继而在需要的情况下，由火星转百度，百度转火星的详细算法；
在GPScombineClass.h中
复制代码代码如下:
#import
#import
#import"CSqlite.h"
#import
@interfaceGPScombineClass:NSObject{
CLLocationManagerlocationManager;
CSqlitem_sqlite;
UILabelm_locationName;
MKMapViewmainMapView;
@publicCLLocationCoordinate2Dbaidulocation;
CLLocationCoordinate2DdeleeverLocation;
}
-(void)OpenGPSmapView;
//在地图上放上自己的位置--外接接口
-(void)setMyMapPonitByMKMapView:(MKMapView)MyMap;
@end
复制代码代码如下:
@interfacePOI:NSObject{
CLLocationCoordinate2Dcoordinate;
NSStringsubtitle;
NSStringtitle;
}
@property(nonatomic,readonly)CLLocationCoordinate2Dcoordinate;
@property(nonatomic,retain)NSStringsubtitle;
@property(nonatomic,retain)NSStringtitle;
-(id)initWithCoords:(CLLocationCoordinate2D)coords;
@end
在GPScombineClass.m中
复制代码代码如下:
#import"GPScombineClass.h"
constdoublex_pi=3.141592653589793243000.0/180.0;
@implementationGPScombineClass
-(void)OpenGPSmapView{
m_sqlite=[[CSqlitealloc]init];
[m_sqliteopenSqlite];
if([CLLocationManagerlocationServicesEnabled]){//检查定位服务是否可用
locationManager=[[CLLocationManageralloc]init];
locationManager.delegate=self;
locationManager.distanceFilter=0.5;
locationManager.desiredAccuracy=kCLLocationAccuracyBest;
[locationManagerstartUpdatingLocation];//开始定位
}
NSLog(@"GPS启动");
}
//定位成功时调用
-(void)locationManager:(CLLocationManager)manager
didUpdateToLocation:(CLLocation)newLocation
fromLocation:(CLLocation)oldLocation
{
CLLocationCoordinate2Dmylocation=newLocation.coordinate;//手机GPS
mylocation=[selfzzTransGPS:mylocation];///转换成火星GPS
deleeverLocation=mylocation;
baidulocation=[selfhhTrans_bdGPS:mywww.visa158.comlocation];//转换成百度地图
/
//显示火星坐标
[selfSetMapPoint:mylocationMKMapView:mainMapView];
/////////获取位置信息
CLGeocodergeocoder=[[CLGeocoderalloc]init];
[geocoderreverseGeocodeLocation:newLocationcompletionHandler:^(NSArrayplacemarks,NSErrorerror)
{
if(placemarks.count>0)
{
CLPlacemarkplmark=[placemarksobjectAtIndex:0];
NSStringcountry=plmark.country;
NSStringcity=plmark.locality;
NSLog(@"%@-%@-%@",country,city,plmark.name);
self->m_locationName.text=plmark.name;
NSLog(@"%@",self->m_locationName);
}
NSLog(@"%@",placemarks);
}];
//[geocoderrelease];
/
}
//定位失败时调用
-(void)locationManager:(CLLocationManager)manager
didFailWithError:(NSError)error{
NSLog(@"定位失败");
}
//把手机GPS坐标转换成火星坐标（google坐标）
-(CLLocationCoordinate2D)zzTransGPS:(CLLocationCoordinate2D)yGps
{
intTenLat=0;
intTenLog=0;
TenLat=(int)(yGps.latitude10);
TenLog=(int)(yGps.longitude10);
NSStringsql=[[NSStringalloc]initWithFormat:@"selectoffLat,offLogfromgpsTwherelat=%dandlog=%d",TenLat,TenLog];
NSLog(sql);
sqlite3_stmtstmtL=[m_sqliteNSRunSql:sql];
intoffLat=0;
intoffLog=0;
while(sqlite3_step(stmtL)==SQLITE_ROW)
{
offLat=sqlite3_column_int(stmtL,0);
offLog=sqlite3_column_int(stmtL,1);
}
yGps.latitude=yGps.latitude+offLat0.0001;
yGps.longitude=yGps.longitude+offLog0.0001;
returnyGps;
}
//在地图上放上自己的位置--外接接口
-(void)setMyMapPonitByMKMapView:(MKMapView)MyMap{
//显示火星坐标
[selfSetMapPoint:deleeverLocationMKMapView:MyMap];
MyMap=mainMapView;
}
//在地图上放上自己的位置
-(void)SetMapPoint:(CLLocationCoordinate2D)myLocationMKMapView:(MKMapView)mapView
{
//POIm_poi=[[POIalloc]initWithCoords:myLocation];
//
//[mapViewaddAnnotation:m_poi];
MKCoordinateRegiontheRegion={{0.0,0.0},{0.0,0.0}};
theRegion.center=myLocation;
[mapViewsetZoomEnabled:YES];
[mapViewsetScrollEnabled:YES];
theRegion.span.longitudeDelta=0.01f;
theRegion.span.latitudeDelta=0.01f;
[mapViewsetRegion:theRegionanimated:YES];
}
//把火星坐标转换成百度坐标
-(CLLocationCoordinate2D)hhTrans_bdGPS:(CLLocationCoordinate2D)fireGps
{
CLLocationCoordinate2DbdGps;
doublehuo_x=fireGps.longitude;
doublehuo_y=fireGps.latitude;
doublez=sqrt(huo_xhuo_x+huo_yhuo_y)+0.00002sin(huo_yx_pi);
doubletheta=atan2(huo_y,huo_x)+0.000003cos(huo_xx_pi);
bdGps.longitude=zcos(theta)+0.0065;
bdGps.latitude=zsin(theta)+0.006;
returnbdGps;
}
#pragmamark显示商品信息
#pragmamark
-(void)showPurchaseOnMapByLocation:(CLLocationCoordinate2D)baiduGPSMKMapView:(MKMapView)myMapView{
CLLocationCoordinate2DgoogleGPS;
googleGPS=[selfhhTrans_GCGPS:baiduGPS];//转换为百度
[selfSetPurchaseMapPoint:googleGPSMKMapView:myMapView];
}
//把百度地图转换成谷歌地图--火星坐标
-(CLLocationCoordinate2D)hhTrans_GCGPS:(CLLocationCoordinate2D)baiduGps
{
CLLocationCoordinate2DgoogleGps;
doublebd_x=baiduGps.longitude-0.0065;
doublebd_y=baiduGps.latitude-0.006;
doublez=sqrt(bd_xbd_x+bd_ybd_y)-0.00002sin(bd_yx_pi);
doubletheta=atan2(bd_y,bd_x)-0.000003cos(bd_xx_pi);
googleGps.longitude=zcos(theta);
googleGps.latitude=zsin(theta);
returngoogleGps;
}
-(void)SetPurchaseMapPoint:(CLLocationCoordinate2D)myLocationMKMapView:(MKMapView)mapView
{
POIm_poi=[[POIalloc]initWithCoords:myLocation];
[mapViewaddAnnotation:m_poi];
MKCoordinateRegiontheRegion={{0.0,0.0},{0.0,0.0}};
theRegion.center=myLocation;
[mapViewsetZoomEnabled:YES];
[mapViewsetScrollEnabled:YES];
theRegion.span.longitudeDelta=0.01f;
theRegion.span.latitudeDelta=0.01f;
[mapViewsetRegion:theRegionanimated:YES];}
@end
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