private function computeGps($exifCoord, $hemi) { $degrees = count($exifCoord) > 0 ? Image::computeGps2Num($exifCoord[0]) : 0; $minutes = count($exifCoord) > 1 ? Image::computeGps2Num($exifCoord[1]) : 0; $seconds = count($exifCoord) > 2 ? Image::computeGps2Num($exifCoord[2]) : 0; $flip = ($hemi == 'W' or $hemi == 'S') ? -1 : 1; return $flip * ($degrees + $minutes / 60 + $seconds / 3600); }