calculate latitude and longitude from distance and bearing

Label: 1, calculate the distance formula is long (on-line search), build a MySQL function: Delimiter $$ CREATE FUNCTION fun_jw_dist (lng1 double (15,9), LAT1 double (9), Lng2 double (15,9), Lat2 double (15,9)) RETURNS Double (15,9) BEGIN DECLARE Dist Double (9); SET dist = round (6378.138*2*asin (sqrt (Pow ((Lat1*pi ()/180-lat2*pi ()/180)/2), 2) +cos (Lat1*pi ()/180) *cos (Lat2*pi ( )/180) * POW (Sin

PublicClassDistance{PrivateStaticFinalDoubleEarth_radius = 6378137;PrivateStaticDoubleradDoubleD{ReturnD * math.pi/180.0;}/*** According to latitude and longitude coordinates between two points (Double value) to calculate the distance between two points in meters*@paramLng1*@paramLat1*@paramLng2*@paramLat2*@return retu

Specify the distance calculation for latitude and longitude of two-point location1 #Coding=utf-82 3 fromMathImport*4 5 #input lat_a latitude A6 #input lng_a Longitude A7 #input Lat_b latitude B8 #input Lng_b

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

/*** @desc calculates distance according to latitude and longitude between two points * @param float $lat Latitude value * @param float $LNG Longitude value */function Getdistance ($lat 1, $lng 1, $ LAT2, $lng 2) { $earthRadius = 6367000;//approximate radius of Earth

function Getdistancebetweenpointsnew ($latitude 1, $longitude 1, $latitude 2, $longitude 2) { $theta = $longitude 1-$longitude 2; $miles = (sin (Deg2rad ($latitude 1)) * S

The calculation formula from Google Maps:Called by various methods of the math class in Java. Implement the above formulaprivate static Double Earth_radius = 6378.137;//unit kilometer/** * Angular radian Calculation formula RAD: (). Calculation of latitude and longitude distance between Hefei and Hangzhoupublic static void Main (String ar[]) {getdistance (31.86,

Recently, we used the formula for calculating the distance between two points on the earth's surface based on latitude and longitude, and then implemented it using Js. There are two ways to calculate the distance between two points on the Earth's surface. First, the Earth is

. Net calculates the distance between 2 points, or calculates the distance between 2 coordinates and 2 latitude and longitude.The code is as follows:1 /// 2 ///calculates the distance between the Geographics locations3 /// 4 Public Static classgeodistance5 {6 Public Static DoubleBetween (Doubl

SQL SERVER formula for calculating distances based on map latitude and longitude Copy Code code as follows: Go --Create latitude and longitude distance calculation function createfunction [dbo]. [Fngetdistance] --latbegin begins

#region get the distance between two points (latitude and longitude representation)Get the distance between two points (latitude and longitude representation)public static double Getdistance (double P1lat, double p1lng, double P2l

Principle:The Earth's equator orbits around the earth a total of 40075.04 kilometers a week, while the @ lap is divided into 360 °, and each 1° (degree) has 60, the length of each second on the equator is calculated as follows: 40075.04km/360°=111.31955km 111.31955km/60=1.8553258km=1855.3m And each point has 60 seconds, every second represents 1855.3m/60=30.92m Any two-point distance calculation formula is D=111.12cos{1/[sinφasinφb 10 Cosφacosφbcos (λ

This is a known distance between two points. Can you see if it is helpful? Hope it will be helpful to you!'----------------------------------------------------------------------'The known longitude and latitude Distance Function'----------------------------------------------------------------------Function countdist

Calculates the spherical distance between 2 points on the Earth's surface/** * @param $lat 1 * @param $lng 1 * @param $lat 2 * @param $lng 2 * @return int*/functionGetdistance ($lat 1,$LNG 1,$lat 2,$LNG 2){ //turn angle into Fox degree $radLat 1=Deg2rad($lat 1);//the Deg2rad () function converts an angle to radians $radLat 2=Deg2rad($lat 2); $radLng 1=Deg2rad($LNG 1); $radLng 2=Deg2rad($LNG 2); $a=$radLat 1-$radLat 2; $b=$radLng 1-$radLng 2;

/***@desc根据两点间的经纬度计算距离*@paramfloat$lat纬度值*@paramfloat$lng经度值*/functiongetDistance($lat1,$lng1,$lat2,$lng2){$earthRadius=6367000;//approximateradiusofearthinmeters/*Convertthesedegreestoradianstoworkwiththeformula*/$lat1=($lat1*pi())/180;$lng1=($lng1*pi())/180;$lat2 =($lat2*pi())/180;$lng2=($lng2*pi())/180;/*UsingtheHaversineformulahttp://en.wikipedia.org/wiki/Haversine_formulacalculatethedistance*/$calcLongitude=$lng2-$lng1;$calcLatitude=$lat2-$lat1;$stepOne=pow(sin($calcLatitude/2),2)+cos($lat1

Earth radius, Unit m Private Const double Earth_radius = 6378137; 　　C # Calculates the distance of two latitude and longitude

Recently do something encountered to be based on the two-point latitude and longitude of the distance between the calculation, on-line looked up the next information. Because this kind of contact is relatively few, directly to find the ready-made code, not how to study. The code is as follows, as a record.Private Const Double Earth_radius = 6378.137;//Earth radiu

Tags: style blog http ar sp on log efDECLARE @BJ GEOGRAPHYDECLARE @XT GEOGRAPHY/*GET Latitude/longitude from Here:http://www.travelmath.com/cities/beijing,+chinaThe distance unit in SRID 4326 is the meter*/SELECT @BJ = Geography::P oint (' 39.92889 ', ' 116.38833 ', 4326)SELECT @XT = Geography::P oint (' 37.0630556 ', ' 114.4941667 ', 4326)SELECT@BJ as Beijing,@X

C # Two-point distance function for known latitude and longitude calculation Public task Above is the C # latitude and longitude calculated two points distance function content, more relevant content please pay attention to t

Copy Code code as follows: /** * calculates the distance between two points * @param _lat1-start latitude * @par Am _lon1-start Longitude * @param _lat2-end latitude * @param _lon2-end longitude * @return km (rounded) */ public static