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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 GSA 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#GSA |
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* @link http://aprs.gids.nl/nmea/#gsa |
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*/ |
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class GSA 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 = 'GSA'; |
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/** |
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* {@inheritdoc} |
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*/ |
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protected $frameRegex = '/^' |
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.'([A-Z]{2}[A-Z]{3}),' //Equipment and trame type |
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.'(A|M),' // selection type of 2D or 3D (manual or automatic) |
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.'(1|2|3),' // Mode (2d / 3d) |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'(\d*),' //PRNs of satellites used for fix |
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.'([0-9\.]+),' //PDOP (dilution of precision) |
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.'([0-9\.]+),' //Horizontal dilution of precision (HDOP) |
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.'([0-9\.]+)' //Vertical dilution of precision (VDOP) |
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.'$/m'; |
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/** |
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* @var float $selection Auto selection of 2D or 3D fix |
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* * A : Automatic, 3D/2D |
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* * M : Manual, forced to operate in 2D or 3D |
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*/ |
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protected $selection; |
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/** |
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* @var string $mode Mode type |
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* * 1 : no fix |
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* * 2 : 2d fix |
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* * 3 : 3d fix |
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*/ |
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protected $mode; |
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/** |
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* @var array $satellitesPNR PRNs of satellites used for fix |
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*/ |
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protected $satellitesPNR; |
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/** |
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* @var float $pdop PDOP (dilution of precision) |
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*/ |
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protected $pdop; |
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/** |
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* @var float $hdop Horizontal dilution of precision (HDOP) |
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*/ |
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protected $hdop; |
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/** |
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* @var float $vdop Vertical dilution of precision (VDOP) |
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*/ |
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protected $vdop; |
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/** |
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* Getter to property selection |
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* |
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* @return string |
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*/ |
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public function getSelection() |
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{ |
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return $this->selection; |
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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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1 |
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return $this->mode; |
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} |
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/** |
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* Getter to property satellitesPNR |
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* |
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* @return string |
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*/ |
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public function getSatellitesPNR() |
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{ |
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return $this->satellitesPNR; |
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} |
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/** |
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* Getter to property pdop |
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* |
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* @return string |
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*/ |
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public function getPdop() |
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{ |
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return $this->pdop; |
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} |
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/** |
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* Getter to property hdop |
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* |
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* @return string |
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*/ |
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public function getHdop() |
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{ |
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return $this->hdop; |
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} |
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/** |
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* Getter to property vdop |
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* |
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* @return string |
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*/ |
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public function getVdop() |
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{ |
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return $this->vdop; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function decodeFrame($msgParts) |
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{ |
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$this->selection = (string) $msgParts[2]; |
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$this->mode = (int) $msgParts[3]; |
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for ($msgIndex = 4; $msgIndex <= 15; $msgIndex++) { |
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$this->satellitesPNR[] = (int) $msgParts[$msgIndex]; |
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} |
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$this->pdop = (float) $msgParts[16]; |
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$this->hdop = (float) $msgParts[17]; |
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$this->vdop = (float) $msgParts[18]; |
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} |
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} |
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