geolocation latitude and longitude

Original source: http://blog.163.com/ezy_dk/blog/static/166651492201221445753585/ Reference Web: A preliminary study of nearby location search The following is a summary of your own SQL code Declare @EARTH_RADIUS float Set @EARTH_RADIUS = 6371000.00-Earth's radius declare @lat float declare @lng float declare @dlng float declare @dlat float declare @distance int --distance set @distance = --300 m C9/>set @lat =xx.xxxxx -This is the central location set @lng = xxx.xxxx -central

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 Locationmanager; @synthesize Target,callback;

Functionradian ($d) { $d *3.1415926535898/180.0;}functiondistance_calculate ($longitude 1, $latitude 1, $longitude 2, $latitude 2) { $radLat 1=adian ( $latitude 1); $radLat 2=radian ( $latitude 2); $a =radian ($ latitude1) -ra

Requirement: Obtain the surface distance between two points according to latitude and longitude, and calculate the direction between two pointsReference:Android get latitude and longitude, calculate distance, azimuth angle there is a formula in the post, I will not repeat it. There is no function to write the azimuth,

Most of the time when we do projects, we use the mobile phone to get the location, and then pass the data to the backstage, this is the iOS8 according to the latitude and longitude display place name of the demo1. Import the framework//Nearbyviewcontroller.mNeardemo//Created by Apple on 14/12/5.Copyright (c) year Youdianshang. All rights reserved.//#import #import @interface nearbyviewcontroller () Uitab

Recent project needs, a little research on HTML5 get the current location of the problem.Getting the latitude and longitude of the current position is simple, a code is done[JavaScript]View Plaincopy print? Navigator.geolocation.getCurrentPosition (function (position) { longitude = position.coords.longitude;

publicclassgeoutil{/** * returns a rectangular range based on latitude and longitude **@ paramlng* Longitude * @param lat* Latitude * @param distance* distance (in meters) * @return [lng1,lat1,lng2,lat2] lower-left corner of the rectangle ( LNG1,LAT1) and upper right Corner (LNG2,LAT2) */publicstatic double[]getrect

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. First, we need to import the Corelocation s

Copy Code code as follows: function Getdistancebetweenpointsnew ($latitude 1, $longitude 1, $latitude 2, $longitude 2) { $theta = $longitude 1-$longitude 2; $miles = (sin (Deg2rad ($lat