latitude and longitude youtube

Recent projects need to use the positioning function, and to obtain the latitude and longitude of the current location, consult the data to organize the following code: function Locationposition () {var geolocation = new Bmap.geolocation ();Geolocation.getcurrentposition (function (r) {var city_lat = r.latitude;var city_lng = r.longitude;Cookies.set ("Save_city_latitude", City_lat);Cookies.set ("Save_city_

For example: Longitude: 10.123456 Latitude: 20.654321Get to the actual location according to the above coordinates (do not use Baidu map or the API of the map of Gao de)The code is as follows:Put it in latitude and longitude. Publicstringgetaddress (doublelatitude,doublelongitude) { geocodergeocoder=newgeocoder (this,

Because the Baidu map api,2.0+ and 3.0+ changes relatively big, API basically was completely changed, some students may 2.0+ API use is very familiar with, but update to 3.0+, but will encounter some small trouble (because the API has changed, you need to re-learn its API, the code will be re-written , which is more painful than egg). So here are some small examples, I hope to upgrade to the 3.0+ of the students have some help.1. How does the Baidu map API map move to the specified

This example describes how PHP calculates the distance between two coordinates (longitude, latitude). Share to everyone for your reference. Specific as follows:Here we use PHP to calculate the distance between two coordinates (longitude, latitude) and return the result to meters or kilometers.function distance($lat1, $

At a very young age, the teacher told us that any place on earth could be determined by latitude and longitude. The warp and weft are also marked on the paper map. When you use the Baidu map, you will see the warp and weft? Will you pay attention to the coordinates of a place, latitude and longitude? This article tells

The formula is as follows, unit meters:1th latitude and Longitude: lng1 LAT12nd latitude and Longitude: lng2 lat2Round (6378.138*2*asin (sqrt (POW (LAT1*PI ()/180-lat2*pi ()/180)/2), 2) +cos (Lat1*pi ()/180) *cos (LAT2*PI ()/180) * Pow (Sin ((Lng1*pi ()/180-lng2*pi ()/180)/2), 2)) *1000)For example:SELECTSTORE_ID,LngLa

Tags: long search limit Data sel technology share structure latitude and longitude return database table Structure 2. The key is this SQLSELECT Address_, Longitude_, Latitude_, ROUND (6378.138 * 2 * ASIN (SQRT (POW () (? * PI ()/180-latitude_ * PI ()/180)/ 2), 2) + cos (? * PI ()/+) * cos (latitude_ * PI ()/+) * POW (SIN ((? * PI ()/180-longitude_ * PI ()/180)/2), 2)) ) * +) as Distance_um from xf_l

We often do projects when the use of mobile phone to obtain positioning, and then pass data to the background, which is iOS8 according to the latitude and longitude of the display name of the demo 1. Import Frame // Nearbyviewcontroller.m Neardemo // Created by Apple on 14/12/5. Copyright (c) 2014 Youdianshang. All rights reserved. // #import #import @interface Nearbyviewcontroller () { Nsuserd

Because the GPS signal positions are longitude and latitude spherical coordinates, the State cannot directly reference them from a security perspective. Therefore, kailide gridded the coordinates of longitude and latitude to facilitate the navigation of the navigators, each grid unit represents a vertical direction of

This article is mainly to share under the map region based on the creation of two-dimensional latitude and longitude array, the need for friends can come to referenceAfter the last article, based on the map area, the corresponding point of the display area is calculated.Changes in Latitude: XY page display, from left to right dimension is added such as: 106, 107,

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

PHP Code: Reprint http://www.cnblogs.com/caichenghui/p/5977431.html1 /**2 * Find the distance between two known longitude and latitude, in meters3 * 4 * @param lng1 $, lng2 longitude5 * @param lat1 $, lat2 latitude6 * @return float distance, Unit meter7 * @author www.Alixixi.com8 */9 functionGetdistance ($LNG 1,$lat 1,$LNG 2,$lat 2) {Ten //turn angle into Fox degree One $radLat 1=Deg2rad($lat 1);/

First, ordinary IP is unable to obtain detailed latitude and longitude, only through network services to obtain The most useful in China is the JavaScript API provided by www.ip-look-up.com, as long as the following statements are written in the Web page He's going to return a JSON data in memory, just a little bit. iplocation = {' Latitude ': 39.9289, '

Label:The world's 78,707 major cities information MySQL database, including latitude and longitude coordinate values, has been exported to the SQL file, because it is relatively large, there is 10M, so this is exported separately, for the upgrade failed to manually import students,This data is mainly used for weather forecast plug-in, the weather report plug-in, need to first from the library, query the cit

The database records the longitude and latitude dimensions (for example, 116.412007, 39.947545) marked by sellers on Baidu ), The original idea is to take the center of the center point as the center point and cycle the radius. Every time a pixel is added to the radius (tentatively 1 meter), the circle is made again, query the merchants of corresponding points in the database (it is a long cycle) Similar ar

This article describes how php calculates the distance between two coordinates (longitude, latitude). It involves the use of php-related mathematical functions and is very useful. For more information, see This article describes how php calculates the distance between two coordinates (longitude, latitude). It involves

: This article mainly introduces PHP, Mysql-query nearby locations based on a given latitude and longitude point. if you are interested in PHP tutorials, refer to it. Define (EARTH_RADIUS, 6371); // Earth radius, the average radius is 6371 km/***, and the four points of the square with a certain distance around a certain latitude and

#define TODEG (X) (X*180.0/M_PI)1 /**2 * @method Calculate the angle of the true north according to the latitude and longitude of two points3 *4 * @param longitude15 * @param latitude16 * @param longitude27 * @param latitude28 */9- (void) Getangle: (Double) Longitude1 Latitude1: (Double) Latitude1 Longitude2: (Double) Longitude2 Latitude2: (Double) Latitude2 {Ten DoubleCos_c = cos ( --Latitude2) *cos

Add Corelocation.framework Frame Import #import To query the latitude and longitude method by address: CLGeocoder*geocoder=[[CLGeocoderalloc]init]; [geocodergeocodeaddressstring:@ "Xiangyang, Hubei" completionhandler:^ (Nsarray*placemarks, nserror*error) {if (!error) { for (Clplacemark*aplacemarkinplacemarks) { nslog (@ "place--%@", [aplacemarklocality]); nslog (@ "Lat--%f--lon--%f", Aplacemark.

Public reviews the map of the store does not find coordinates (latitude and longitude) information from the HTML source.Analysis JS found that it is the coordinates (latitude and longitude) information is converted (anti-collection), is the POI parameter in HTML. Take http://www.dianping.com/shop/4101814 shop as an exa