find city using latitude and longitude

address resolution refers to the information obtained from Baidu's latitude and longitude of the structured address. For example: "lat:31.325152,lng:120.558957" The result of the inverse address resolution is "Jiangsu province Suzhou Huqiu District Tower Park Road, No. No. 318." Use Restrictions There are no restrictions on use at this time. Please request key and then use this interface. How to use The

Original: http://www.open-open.com/code/view/1421032487812Import Java.io.bufferedreader;import Java.io.ioexception;import Java.io.inputstreamreader;import Java.io.unsupportedencodingexception;import Java.net.malformedurlexception;import Java.net.URL;import Java.net.URLConnection; /** * Get latitude and longitude * * @author jueyue return format:mapOutput results: 104.0470130.548397Call the following path to

Baidu map api obtains latitude and longitude and city names, and map api obtains latitude and longitudeTo integrate Baidu API positioning, follow these steps: 1. Register a developer2: Apply for key3: Download the jar package4: Code integration first look at the effect:1: it is best to apply for a registered developer

Three methods for obtaining the longitude and latitude by address; three methods for obtaining the province and city by latitude and longitude # Coding /? Address = % s' % address + ' output = json ak = Key' html = urllib2.urlopen (url) json1 = html. read () # convert to st

According to the current location of the coordinate point is also latitude and longitude, find the database near 5 km or 10 km near the implementation of all information, after looking for information, it is my sophomore school, is to find the string length, math forgot, did not think math is so useful, math ah really

* Longitude * @return/public static string Getaddr (string latitude, String Longitu de) {String addr = ""; can also be http://maps.google.cn/maps/geo?output=csvkey=abcdefq=%s,%s, but the solution is the English address//key can be casually write a KEY=ABC// Output=csv can also be XML or JSON, but the data returned using CSV is the simplest and easiest to parse S

|| Longtitude = =Nil|| Latitude. Length==0|| Latitude = =Nil) {NSLog(@"Please enter latitude and longitude");return; }//2. Create a Cllocation object based on the latitude and longitude of user inputCllocation *location = [[Clloca

in the database. when the distance is less than 500, this can indeed produce results, but the efficiency is extremely low, because every record needs to be matched with 40 million pieces of data cyclically, and the time consumed can be imagined. after record, it is found that the processing time of each record is 1700 ms. for the amount of data stored in hundreds of millions of records per day, how is this processing speed so human-like. I also had the idea that I could

Foreword: When doing iOS project today, need to be positioned to get the name of the current city. Baidu Maps SDK has this function, but in order to not rely on a third party, here I use iOS with the framework corelocation to achieve this requirement. IOS8 out, for positioning needs a little more processing, can be normal positioning, this will be at the end of the article to supplement, in the statement before the part is the default iOS7 processing.

iOS system with the positioning, with Cllocationmanager can easily achieve the positioning of the operation, obtained is a set of latitude and longitude, of course, you can also obtain the corresponding provinces, cities, streets and other information according to the latitude and longitude, the following look at a

Get the current phone address, and then convert from latitude and longitude to detailed address (including: Country name-Country code, province, city, street name, postal code, etc.). 1: Get current phone latitude and longitude @implementation currentlocation @synthesize Lo

First, we need to import the Corelocation system framework into the project. The header file is then introduced into our controller. #import Then, a Cllocationmanager object is declared as a member variable for locating the latitude and longitude coordinates and complying with the Protocol Cllocationmanager protocol. @interface Tyviewcontroller () Cllocationmanager *_locationmanager; } Implement the Pro

, found that each record processing time consumption reached 1700ms, for the amount of billions of data per day, such a processing speed, so that the human why ah ...I also had the idea of finding a ballpark area around the latitude and longitude of each record, such as the four points of the square, and then using the MySQL space calculation,

Copy Code code as follows: Package com.yy; Import Java.io.InputStreamReader; Import java.net.HttpURLConnection; Import Java.net.URL; Import Javax.xml.parsers.SAXParser; Import Javax.xml.parsers.SAXParserFactory; Import org.xml.sax.Attributes; Import Org.xml.sax.InputSource; Import org.xml.sax.SAXException; Import Org.xml.sax.XMLReader; Import Org.xml.sax.helpers.DefaultHandler; Import Android.content.Context; Import android.location.Location; Import Android.location.Locat

The specific invocation method is as follows: The code is as follows Copy Code Jaddrobj = Getjsonaddr (string.valueof (Dlat), String.valueof (Dlong)); if (jaddrobj==null) { Jaddrobj = Sysutil.getjsonaddr (string.valueof (Dlat), String.valueof (Dlong)); } if (jaddrobj!=null) { Jsobj = Jaddrobj.getjsonobject ("Status"); if (jsobj.getstring ("code"). Equals ("200")) { Jplacearr = Jaddrobj.getjsonarray ("Placemark"); Jplaceobj = jplacearr.getjsonobject (0); Address = j

Copy codeThe Code is as follows: package com. yy; Import java. io. InputStreamReader; Import java.net. HttpURLConnection; Import java.net. URL; Import javax. xml. parsers. SAXParser;Import javax. xml. parsers. SAXParserFactory; Import org. xml. sax. Attributes;Import org. xml. sax. InputSource;Import org. xml. sax. SAXException;Import org. xml. sax. XMLReader;Import org. xml. sax. helpers. DefaultHandler; Import android. content. Context;Import android. location. Location;Import android. locati

HTML5 provides access to the geographical location of the API, it is convenient to determine the latitude and longitude of customers, we have access to latitude and longitude, you can provide the API through the Baidu map to determine the location of the user. At present, the computer is sometimes not available, the

In development, you need to obtain the current city. I use AMAP, but some cities are located incorrectly. for example, if Chengdu is located in Shenzhen, is there any other way to locate the current city, for example, if you use html5 to obtain the longitude and latitude of a city