--通过经纬度计算两点之间的距离 create FUNCTION [dbo].[fnGetDistanceNew] --LatBegin 开始经度 --LngBegin 开始维度 --29.490295,106.486654,29.615467, 106.581515 (), ),)) Returns real AS BEGIN --转换location字段,防止字段太长.影响SQL美观 declare @LatBegin REAL declare @LngBegin REAL declare…
package xxx.driver.business.utils; /** * <p>Represents a point on the surface of a sphere. (The Earth is almost * spherical.)</p> * * <p>To create an instance, call one of the static methods fromDegrees() or * fromRadians().</p> *…
mysql函数: SET FOREIGN_KEY_CHECKS=0; DROP FUNCTION IF EXISTS `getDistance`;DELIMITER ;;CREATE DEFINER=`root`@`%` FUNCTION `getDistance`(`lng1` decimal,`lat1` decimal,`lng2` decimal,`lat2` decimal) RETURNS decimal(18,2)BEGIN RETURN round(6378.138*2*asin…
题目为计算两点之间距离. 面向过程的思维方式,两点的横坐标之差,纵坐标之差,平方求和,再开跟,得到两点之间距离. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Classes_2_point_distance { class Program { static void Main(string[…