PHP实现腾讯与百度坐标转换
废话不多说,直接上代码
publicfunctioncoordinate_switch($a,$b){//百度转腾讯坐标转换
$x=(double)$b-0.0065;
$y=(double)$a-0.006;
$x_pi=3.14159265358979324;
$z=sqrt($x*$x+$y*$y)-0.00002*sin($y*$x_pi);
$theta=atan2($y,$x)-0.000003*cos($x*$x_pi);
$gb=number_format($z*cos($theta),15);
$ga=number_format($z*sin($theta),15);
return['Latitude'=>$ga,'Longitude'=>$gb];
}
publicfunctioncoordinate_switchf($a,$b){//腾讯转百度坐标转换
$x=(double)$b;
$y=(double)$a;
$x_pi=3.14159265358979324;
$z=sqrt($x*$x+$y*$y)+0.00002*sin($y*$x_pi);
$theta=atan2($y,$x)+0.000003*cos($x*$x_pi);
$gb=number_format($z*cos($theta)+0.0065,6);
$ga=number_format($z*sin($theta)+0.006,6);
return['Latitude'=>$ga,'Longitude'=>$gb];
}
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