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-- ----------------------------

-- Function structure for 84togcj2Lat

-- ----------------------------

DROP FUNCTION IF EXISTS `84togcj2Lat`;

delimiter ;;

CREATE FUNCTION `84togcj2Lat`(`lon` decimal,`lat` decimal)

RETURNS varchar(30) CHARSET utf8

BEGIN

DECLARE pi double DEFAULT 3.1415926535897932384626;

DECLARE x_pi double DEFAULT 3.14159265358979324 * 3000.0 / 180.0;

DECLARE a double DEFAULT 6378245.0;

DECLARE ee double DEFAULT 0.00669342162296594323;

DECLARE dLat double DEFAULT 0.0;

DECLARE dLon double DEFAULT 0.0;

DECLARE magic double DEFAULT 0.0;

DECLARE sqrtMagic double DEFAULT 0.0;

DECLARE mgLat double DEFAULT 0.0;

DECLARE mgLon double DEFAULT 0.0;

DECLARE radLat double DEFAULT 0.0;

set dLat = transformLat(lon - 105.0, lat - 35.0);

set dLon = transformLon(lon - 105.0, lat - 35.0);

set radLat = lat / 180.0 * pi;

set magic = 1 - ee * sin(radLat) * sin(radLat);

set sqrtMagic = sqrt(magic);

set dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);

set dLon = (dLon * 180.0) / (a / sqrtMagic * cos(radLat) * pi);

set mgLat = lat + dLat;

set mgLon = lon + dLon;

RETURN mgLat;

END

;;

delimiter ;

-- ----------------------------

-- Function structure for 84togcj2Lon

-- ----------------------------

DROP FUNCTION IF EXISTS `84togcj2Lon`;

delimiter ;;

CREATE FUNCTION `84togcj2Lon`(`lon` decimal,`lat` decimal)

RETURNS varchar(30) CHARSET utf8

BEGIN

DECLARE pi double DEFAULT 3.1415926535897932384626;

DECLARE x_pi double DEFAULT 3.14159265358979324 * 3000.0 / 180.0;

DECLARE a double DEFAULT 6378245.0;

DECLARE ee double DEFAULT 0.00669342162296594323;

DECLARE dLat double DEFAULT 0.0;

DECLARE dLon double DEFAULT 0.0;

DECLARE magic double DEFAULT 0.0;

DECLARE sqrtMagic double DEFAULT 0.0;

DECLARE mgLat double DEFAULT 0.0;

DECLARE mgLon double DEFAULT 0.0;

DECLARE radLat double DEFAULT 0.0;

set dLat = transformLat(lon - 105.0, lat - 35.0);

set dLon = transformLon(lon - 105.0, lat - 35.0);

set radLat = lat / 180.0 * pi;

set magic = 1 - ee * sin(radLat) * sin(radLat);

set sqrtMagic = sqrt(magic);

set dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);

set dLon = (dLon * 180.0) / (a / sqrtMagic * cos(radLat) * pi);

set mgLat = lat + dLat;

set mgLon = lon + dLon;

RETURN mgLon;

END

;;

delimiter ;

-- ----------------------------

-- Function structure for bd09togcj02lat

-- ----------------------------

DROP FUNCTION IF EXISTS `bd09togcj02lat`;

delimiter ;;

CREATE FUNCTION `bd09togcj02lat`(`lat` double,`lon` double)

RETURNS double

BEGIN

DECLARE x double DEFAULT 0;

DECLARE y double DEFAULT 0;

DECLARE z double DEFAULT 0;

DECLARE pi double DEFAULT 3.1415926535897932384626;

DECLARE theta double DEFAULT 0;

DECLARE gg_lon double DEFAULT 0;

DECLARE gg_lat double DEFAULT 0;

set x = lat - 0.0065, y = lon - 0.006;

set z = sqrt(x * x + y * y) - 0.00002 * sin(y * pi);

set theta = atan2(y, x) - 0.000003 * cos(x * pi);

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