how to geocode

As follows: JavaScript code: New encapsulated version:VaR map; var geocoder = new Google. Maps. geocoder ();/***-25.363882, 131.044922 * initial map */ Function initialize (LAT1, lng1, zoom, canvas_div ){ VaR mylatlng = new Google. Maps. latlng (LAT1, lng1 ); VaR myoptions = { Zoom: Zoom, Center: mylatlng, Maptypeid: Google. Maps. maptypeid. Roadmap } Map = new Google. Maps. Map (document. getelementbyid (canvas_div), myoptions ); } // Function placemarker (latlng, HTML ){ VaR marker = new

; To access Baidu's webservice interface. The search function includes two aspects: calling the js interface, tagging on the map; calling the webservice interface, and displaying information in the list. (These two points do not matter much, but they are two different methods) // Search, 1: Mark on the map (call js api), 2: list display (call webservice api) void BMap: search () {QString key = this-> edit_key-> text (); QString area = this-> edit_area-> text (); // call the js method s

You must click an address to directly call Baidu map and display the address on Baidu map. The parameter has only one address and no corresponding coordinates, this reminds me that the previous map was used to transmit a coordinate and display the address on the map. The idea was as follows: how to convert a detailed address to a coordinate, and then it is sent to Baidu map, but it seems that although the detailed address can be converted into coordinates, but this is converted after the display

establish a network with a socket?6. Say the process of sending a network request?7. Say afnetworking?8. How is the data of the network transmitted?05 Data analysis1. What is JSON? What steps are required? 2. What is XML? What is the difference from JSON? 06 Positioning1. What are the techniques for positioning? What are the key objects? What are the agents? 2. How do I add a pin? 3. How do I add a cover? 4. How do I geocode and reverse

.CLPlacemarkDescription: Clplacemark literally means landmark, encapsulating detailed address location informationGeographical location @property (nonatomic, readonly) cllocation *location;Regional @property (nonatomic, readonly) clregion *region;Detailed address information @property (nonatomic, readonly) nsdictionary *addressdictionary;Address name @property (nonatomic, readonly) NSString *name;City @property (nonatomic, readonly) NSString *locality;Second, the code example:The interface in st

or the thing will use this method-(void) Mapview: (Mkmapview *) Mapview regiondidchangeanimated: (BOOL) animatedThe area of the map display is about to change and will call-(void) Mapview: (Mkmapview *) Mapview regionwillchangeanimated: (BOOL) animatedWhen the user wants to return to the original location:-(void) Backtouserlocation {Cllocationcoordinate2d Center = self.mapView.userLocation.location.coordinate;[Self.mapview Setcentercoordinate:center Animated:yes];}4. Geocoding and geo-coding@pr

Need to install a third-party package: RequestsThe latitude and longitude matching using the high-D map API, first of all, the GPS coordinates into the latitude and longitude coordinates of the German map, and then according to the converted coordinates to match.This match is mainly to get the POI point address information that is closest to a given latitude and longitude.The main programs are as follows:1 #-*-coding:utf8-*-2 ImportRequests3 ImportCSV4 ImportChardet5 ImportSYS6 Reload (SYS)7Sys.

;#pragma mark-geo-coding-(ibaction) GeoCode;@property (Weak, nonatomic) Iboutlet Uitextfield *addressfield;@property (Weak, nonatomic) Iboutlet Uilabel *longitudelabel;@property (Weak, nonatomic) Iboutlet Uilabel *latitudelabel;@property (Weak, nonatomic) Iboutlet Uilabel *detailaddresslabel; #pragma mark-anti-geo coding -(ibaction) Reversegeocode;@property (Weak, nonatomic) Iboutlet Uitextfield *longitudefield;@property (Weak, nonatomic) Iboutlet

datausingencoding:nsutf8stringencoding]; Parsing JSON data, using system methods jsonobjectwithdata:options:error:nsdictionary* dic = [Nsjsonserialization jsonobjectwithdata:jso Ndata options:nsjsonreadingmutableleaves Error:nil]; The next step is to parse. Know to get what you want. nsarray* arrayresult =[dic objectforkey:@ "Results"]; nsdictionary* resultdic = [Arrayresult objectatindex:0]; nsdictionary* geometrydic = [resultdic objectforkey:@ "geometry"]; NSLog (@ "G

, it is geocoding and geographical coding.Geocoding: Converts the name of a place into a latitude and a more detailed address. Anti-geocoding, is the input latitude and longitude, get the detailed address. The main code is as follows:-(Ibaction) GeoCode: (ID) Sender {if (self.addressfield.text.length==0) return; [Self.geocoder geocodeAddressString:self.addressField.text completionhandler:^ (Nsarray *placemarks, Nserror *error) {if (error) {[ema

In iOS development, when using nsurlconnection to request the Google Places API, if the requested URL contains Chinese, the returned result is empty and the URL cannot be recognized by Google.NSString *_urlstring = @ "Http://maps.googleapis.com/maps/api/geocode/json?address= Nanjing sensor=true ";Nsurl *_url = [Nsurl urlwithstring:_datastring];Nsmutableurlrequest *_request = [Nsmutableurlrequest Requestwithurl:_url];I'm going to transcode the URL stri

street details. The Google map interface also returns a string of JSON data, which is more detailed than the Baidu map interface. We can display the required information to p # google_geo as needed. The Code is as follows: Function showPosition (position ){Var latlon = position. coords. latitude + ',' + position. coords. longpolling; // GoogleVar url = 'HTTP: // maps.google.cn/maps/api/geocode/json? Latlng = '+ latlon +' language = cn ';$. Ajax