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<?php |
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declare(strict_types=1); |
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namespace Uro\TeltonikaFmParser\Model; |
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use JsonSerializable; |
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class GpsData implements JsonSerializable |
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{ |
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/** |
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* @var float |
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*/ |
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private $longitude; |
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/** |
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* @var float |
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*/ |
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private $latitude; |
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/** |
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* @var int |
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*/ |
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private $altitude; |
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/** |
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* @var int |
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*/ |
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private $angle; |
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/** |
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* @var int |
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*/ |
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private $satellites; |
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/** |
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* @var int |
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*/ |
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private $speed; |
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public function __construct( |
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float $longitude, |
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float $latitude, |
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int $altitude, |
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int $angle, |
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int $satellites, |
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int $speed |
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) |
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{ |
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$this->longitude = $longitude; |
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$this->latitude = $latitude; |
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$this->altitude = $altitude; |
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$this->angle = $angle; |
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$this->satellites = $satellites; |
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$this->speed = $speed; |
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} |
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public function getLongitude(): float |
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{ |
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return $this->longitude; |
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} |
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public function getLatitude(): float |
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{ |
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return $this->latitude; |
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} |
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public function getAltitude(): int |
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{ |
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return $this->altitude; |
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} |
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public function getAngle(): int |
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{ |
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return $this->angle; |
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} |
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public function getSatellites(): int |
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{ |
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return $this->satellites; |
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} |
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public function getSpeed(): int |
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{ |
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return $this->speed; |
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} |
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/** |
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* If there were no GPS fix in the moment of data acquisition – Angle, Satellites and Speed are 0. |
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* |
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* @return bool |
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*/ |
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public function hasGpsFix(): bool |
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{ |
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return !((($this->angle === $this->speed) === $this->satellites) && ($this->satellites == 0)); |
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} |
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public static function parseCoordinate($coordinate, $precision = 10000000) |
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{ |
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return unpack('l', pack('l', hexdec($coordinate)))[1] / $precision; |
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} |
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public static function createFromHex(string $payload, int &$position): GpsData |
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{ |
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$longitude = self::parseCoordinate(substr($payload, $position, 8)); |
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$position += 8; |
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$latitude = self::parseCoordinate(substr($payload, $position, 8)); |
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$position += 8; |
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$altitude = (int)hexdec(substr($payload, $position, 4)); |
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$position += 4; |
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$angle = (int)hexdec(substr($payload, $position, 4)); |
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$position += 4; |
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$satellites = (int)hexdec(substr($payload, $position, 2)); |
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$position += 2; |
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$speed = (int)hexdec(substr($payload, $position, 4)); |
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$position += 4; |
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return new GpsData($longitude, $latitude, $altitude, $angle, $satellites, $speed); |
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} |
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public function jsonSerialize(): array |
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{ |
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return [ |
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'longitude' => $this->getLongitude(), |
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'latitude' => $this->getLatitude(), |
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'altitude' => $this->getAltitude(), |
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'angle' => $this->getAngle(), |
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'satellites' => $this->getSatellites(), |
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'speed' => $this->getSpeed(), |
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'hasGpsFix' => $this->hasGpsFix() |
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]; |
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} |
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} |
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uro /
teltonika-fm-parser
