PHP实现腾讯与百度坐标转换


            废话不多说，直接上代码





public function coordinate_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];



}



public function coordinate_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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