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<?php |
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namespace BultonFr\NMEA\Frames; |
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/** |
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* Define the parser system for VTG frame type |
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* |
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* @package BultonFr\NMEA |
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* @author Vermeulen Maxime <[email protected]> |
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* @link http://www.gpsinformation.org/dale/nmea.htm#VTG |
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* @link http://aprs.gids.nl/nmea/#vtg |
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*/ |
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class VTG extends \BultonFr\NMEA\Frame |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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protected $frameType = 'VTG'; |
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/** |
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* Format: $--VTG,x.x,T,x.x,M,x.x,N,x.x,K |
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* {@inheritdoc} |
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*/ |
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protected $frameRegex = '/^' |
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.'([A-Z]{2}[A-Z]{3}),' //Equipment and trame type |
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.'([0-9\.]*),T,' //True track made good (degrees) |
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.'([0-9\.]*),M,' //Magnetic track made good |
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.'([0-9\.]*),N,' //Ground speed, knots |
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.'([0-9\.]*),K' //Ground speed, Kilometers per hour |
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.'(,(A|D|E|N|S)?)?' //Mode indicator (NMEA >= 2.3) |
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.'$/m'; |
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/** |
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* @var float $trueTrack True track made good (degrees) |
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*/ |
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protected $trueTrack; |
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/** |
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* @var float $magneticTrack Magnetic track made good |
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*/ |
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protected $magneticTrack; |
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/** |
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* @var float $speedKnots Ground speed, knots |
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*/ |
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protected $speedKnots; |
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/** |
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* @var float $speedKmH Ground speed, Kilometers per hour |
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*/ |
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protected $speedKmH; |
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/** |
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* @var string $mode Mode indicator (NMEA >= 2.3) |
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* * A : autonomous |
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* * D : differential |
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* * E : Estimated |
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* * N : not valid |
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* * S : Simulator |
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*/ |
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protected $mode; |
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/** |
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* Getter to property trueTrack |
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* |
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* @return float |
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*/ |
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public function getTrueTrack() |
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{ |
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return $this->trueTrack; |
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} |
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/** |
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* Getter to property magneticTrack |
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* |
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* @return float |
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*/ |
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public function getMagneticTrack() |
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{ |
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return $this->magneticTrack; |
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} |
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/** |
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* Getter to property speedKnots |
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* |
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* @return float |
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*/ |
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public function getSpeedKnots() |
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{ |
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return $this->speedKnots; |
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} |
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/** |
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* Getter to property speedKmH |
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* |
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* @return float |
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*/ |
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public function getSpeedKmH() |
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{ |
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return $this->speedKmH; |
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} |
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/** |
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* Getter to property mode |
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* |
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* @return string |
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*/ |
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public function getMode() |
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{ |
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return $this->mode; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function decodeFrame($msgParts) |
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{ |
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$this->trueTrack = (float) $msgParts[2]; |
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$this->magneticTrack = (float) $msgParts[3]; |
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$this->speedKnots = (float) $msgParts[4]; |
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$this->speedKmH = (float) $msgParts[5]; |
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if (isset($msgParts[7])) { |
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$this->mode = (string) $msgParts[7]; |
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} |
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} |
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} |
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bulton-fr /
nmea-parser
