convert latitude and longitude to address

Technology Exchange Group: 665060698Proj4 is a very useful coordinate conversion class library, available in various languages, version C++,java,js,python, and so on, it is convenient to convert coordinates from one coordinate system to anotherCoordinates.In the use of the Web page, when the conversion of a large number of coordinates, found that there is a problem with performance, we looked at the source code of PROJ4JS, found that initializing a lo

if(Httpsconn! =NULL) {INSR=NewInputStreamReader (Httpsconn.getinputstream (), "UTF-8"); BR=NewBufferedReader (INSR); String Data=NULL; intCount = 1; while((Data= br.readline ())! =NULL){ if(count==5) {LNG= (String) data.subsequence (Data.indexof (":") +1, Data.indexof (","));//Longitudecount++; }Else if(count==6) {lat= Data.substring (Data.indexof (":") +1);//Latitudecount++; }Else{Count++; } } } } Catch(IOEx

1, load Baidu API Core Js,ak said to get Baidu map development key, free to apply for the next2. Code:　　Set default geo-location access failed when using default geolocationvar defaultposition= "121.48479060028a31.234309729773";1 if($.cookie ("apppoi") = =NULL|| $.cookie ("apppoi") = = "Undefined" | | $.cookie ("apppoi") = =undefined) {2 varGeolocation =Newbmap.geolocation ();3Geolocation.getcurrentposition (function(r) {4 if(R.point! =undefined) {5$LNG =r.poi

When using the Locationmanager and location of Android to get the position, often there is the situation of access to null, and the operation is not very convenient, in this demo I used the Baidu map API Positioning SDK, Can get the current location latitude and longitude and detailed address information at once, also can get the surrounding POI information, at t

decimal degree representation of the Radian conversion degreeLongitudestring =Cesium.Math.toDegrees (cartographic.longitude); Latitudestring=Cesium.Math.toDegrees (cartographic.latitude); //Get camera HeightHeight =Math.ceil (viewer.camera.positionCartographic.height); Entity.position=Cartesian; Entity.label.show=true; Entity.label.text= ' (' + longitudestring + ', ' + latitudestring + ', ' + height + ') ' ; }Else{entity.label.show=false; }}, Cesium.ScreenSpaceEventType.MOUSE_MOVE); //se

============ Problem Description ============On the internet to find a few examples, are connected to the case, help .....============ Solution 1============ Reference 3 Floor u013365840 's reply: Quote: Referring to the reply of the 1 floor sagittarius1988: Unless you have a database, you're not getting the results of this reverse geo-resolution. So if you want to parse the address backwards through

When you use Baidu api to obtain the current longitude and latitude, you can use the api demo with the same code, but the error BMapManager cannot be instantiated. This is written in the demo: Package com. stgmobile. cyt. activity. enterprise;Import android. app. Application;Import android. util. Log;Import android. widget. Toast;Import com. baidu. mapapi. BMapManager;Import com. baidu. mapapi. MKEvent;Impo

'] ]]; }) Fs.writefile (File_path_towrite, Json.stringify (File_data), function (err) {if (err) Console.lo G (' Write data failed ', err); else Console.log (' Get data and write file successfully '); Res.send (File_data); }) Addresses.foreach (function (e, i) {superagent.get (' http://api.map.baidu.com/geocoder/v2/'). Qu Ery ({address:e.split (', ').Join (')}). Query ({city:e.split (', ') [1]}). query ({output: ' JSON '}). Query ({Ak:sk}). End (Function (er

public class Baiduposition{public int status {get; set;}Public result result {get; set;}}public class Result{Public location location {get; set;}public int precise {get; set;}public int confidence {get; set;}public string level {get; set;}}public class Location{public decimal LNG;public decimal lat;Public location (decimal x, decimal y){LNG = x;lat = y;}}public static Class Baidumap{public static location Getsupplierlocation (string address){

The implementation principle first calculates the four points of the rectangle around the point, and then uses latitude and longitude to directly match the records in the database. Get surrounding coordinates Public Function Returnsquarepoint ($LNG, $lat, $distance = 0.5) { $earthRadius = 6378138; $DLNG = 2 * ASIN (SIN ($distance/(2 * $earthRadius))/cos (Deg2rad ($lat))); $DLNG

Original page address: http://www.storyday.com/wp-content/uploads/2008/09/latlung_dis.html　　JS code--Calculates distances based on latitude and longitude

When you use the built-in LocationManager and Location of Android to obtain a location, the Location is often null, and the operation is not very convenient, in this Demo, I used the location SDK In the Baidu map API to get the longitude and latitude of the current location and detailed address information at one time, and the surrounding POI information. I can a

Data Source (National Bureau of Statistics): http://www.stats.gov.cn/tjsj/tjbz/xzqhdm/Special handling of data: Merging "municipal districts" and "counties" in municipalities into regions The "Provincial administrative divisions" and "autonomous regions of the county administrative divisions" planning to the municipal or regional level Remove all "district" data Change the "Zhongsha Islands Reef and its sea area" under the Hainan Province to "Zhongsha islands" (mainly to obtain th

-Test case: Longitude: 112.881885, Latitude: 28.220368; Address: Hunan Province, Changsha, Yuelu District, Valley Garden Road, No. 186thLongitude: Latitude: Baidu Map Anti-address resolution (through Latitude query

How to obtain address information through latitude and longitude. Summary Google Maps API WEB Services is a collection of HTTP interfaces for Google services that provide geographic data for your map application. Includes: Google Geocoding API, Google Directions API, Google Elevation API, Google Places API. This article explores how to get

1:getlocation () method for selecting optimal latitude and longitude by sieve2:mapthread thread gets the city name by uploading the latitude and longitude obtained by the getLocation ()public class Positionactivity extends Baseactivity implements Iinit, Iresponsehandler, View.onclicklistener {private T Extview Mlocatio

Recently, the project needs to query the specific address and region by latitude, through the query network resources, found that most of the provided to get the specific address of the region or the name of the city is not very good grasp; I got myself A: Copy Code code as follows: WebClient Client Objects WebClient client = new WebClient (); Strin