latitude and longitude youtube

PHP calculates the distance between two specified longitude and latitude locations, which are used to compute the latitude and longitude of a given location, calculate the business area near it, and the distance between a given location and a nearby business district. The following are the specific function codes and u

Geographic location in China: The intersection of Heilongjiang and usuli River at 2 minutes 30 seconds, 135 degrees, on the Eastend east longitude The west end of the eastern longitude 73 degrees 40 minutes Pamir uzbiri mountain exit (ucha County) At the southernmost point of the islands, the northern latitude area is 3 degrees 52 points, and the former mother sa

Find a specific address based on latitude and longitude:Http://api.map.baidu.com/geocoder?location= latitude, longitude output= output format type key= user keySuch as:http://api.map.baidu.com/geocoder?location=31.407452,121.490523output=jsonkey= 6eea93095ae93db2c77be9ac910ff311Find the latitude and

This article introduces how to use javascript to extract the coordinates of the administrative region boundary longitude and latitude from AMAP and Baidu. This article is highly practical and easy to understand. For more information, see. Using JavaScript to extract the coordinates of longitude and latitude of administ

Creating API maps with DOT markersScriptsrc= "http://webapi.amap.com/maps?v=1.4.1key=bcf87f3263f98cc37309298bca20c622">Script>Scripttype= "Text/javascript"> //Instantiating point Markers functionAddmarker () {marker= Newamap.marker ({icon:"Http://webapi.amap.com/theme/v1.3/markers/n/mark_b.png", Position: [116.41, 39.91] }); Marker.setmap (map); } varMap= NewAmap.map ('Container', {resizeenable:true, center: [116.40, 39.91], zoom: - }); Addmarker ();Script>Get current

Transfer (http://www.findingchina.info/article/gps/2009-10-10/108.html) Preface: for some purpose that few people do not know the truth, the electronic map (including GPS navigation software) of tianchao abolished the function of displaying the longitude and latitude of the current position. This is a good opportunity for a few G-friends who wish to freely share accurate locations, a few outdoor enthusiasts

//Earth radius, with an average radius of 6371 km /*** Calculate the four points of a square with a distance between a certain latitude and longitude ** @ Param Lon float longitude * @ Param lat float latitude * @ Param distance float the radius of the circle where the point is located, this circle is tangent to this s

Example One function distance ($lat 1, $lng 1, $lat 2, $lng 2, $miles = True){$pi = m_pi/180;$lat 1 *= $PI 80;$LNG 1 *= $PI 80;$lat 2 *= $PI 80;$LNG 2 *= $PI 80;$r = 6372.797;$dlat = $lat 2-$lat 1;$DLNG = $lng 2-$LNG 1;$a = sin ($dlat/2) *sin ($dlat/2) +cos ($lat 1) *cos ($lat 2) *sin ($DLNG/2) *sin ($DLNG/2);$c = 2 * atan2 (sqrt ($a), sqrt (1-$a));$km = $r * $c;Return ($miles? ($KM * 0.621371192): $km);} Example Two /*** Calculate the distance between two coordinates (m)* @param float $fP 1L

Ideas:Formula:W is the radian corresponding to Latitude, and J is the arc of longitude, as shownThe following code lat is latitude LNG is longitude/** * According to Latitude and longitude, return the result unit is kilometer, fir