def receivedNmeaSentence(self, sentence):
""" callback method - called from the NmeaBuffer """
#print "GOT ",sentence
# update last sentence time - to signal that we're receiving correct data
if sentence is not None:
self.lastSentenceTime = time.time()
if sentence == "GPRMC":
if (self.nmeaParser.lat != 0
or self.nmeaParser.lon != 0) and self.gpxDoc:
curTime = datetime.datetime.now()
trkpt = GpxCreation.createTrkPt(self.gpxDoc, self.nmeaParser,
curTime)
if self.gpxTrkseg.elementsByTagName("trkpt").count() == 0:
#if delay between start of recording and first trk point is too big,
#insert arbitary first track point to have a correct recording length
#(so that user is able to play all recorded data - video etc.)
diff = curTime - self.gpxTrksegStartTime
if diff.days * 24 * 3600 + diff.seconds > MAX_TRKSEG_EMPTY_BEGIN_TIME:
trkpt_stub = GpxCreation.createTrkPt(
self.gpxDoc, self.nmeaParser,
self.gpxTrksegStartTime)
self.gpxTrkseg.appendChild(trkpt_stub)
self.gpxTrkseg.appendChild(trkpt)
self.emitNewTrackPoint()
if sentence == "PTNTHPR":
self.emitNewTrackPoint()
def receivedNmeaSentence(self, sentence):
""" callback method - called from the NmeaBuffer """
#print "GOT ",sentence
# update last sentence time - to signal that we're receiving correct data
if sentence is not None:
self.lastSentenceTime = time.time()
if sentence=="GPRMC":
if (self.nmeaParser.lat!=0 or self.nmeaParser.lon!=0) and self.gpxDoc:
curTime=datetime.datetime.now()
trkpt=GpxCreation.createTrkPt(self.gpxDoc, self.nmeaParser, curTime)
if self.gpxTrkseg.elementsByTagName("trkpt").count()==0:
#if delay between start of recording and first trk point is too big,
#insert arbitary first track point to have a correct recording length
#(so that user is able to play all recorded data - video etc.)
diff=curTime-self.gpxTrksegStartTime
if diff.days*24*3600+diff.seconds>MAX_TRKSEG_EMPTY_BEGIN_TIME:
trkpt_stub=GpxCreation.createTrkPt(self.gpxDoc, self.nmeaParser, self.gpxTrksegStartTime)
self.gpxTrkseg.appendChild(trkpt_stub)
self.gpxTrkseg.appendChild(trkpt)
self.emitNewTrackPoint()
if sentence=="PTNTHPR":
self.emitNewTrackPoint()
def initializeGpxOutput(self):
"""Preinitialize gpx output object."""
self.gpxDoc=QDomDocument()
if os.path.isfile(self.gpxPath):
file=QFile(self.gpxPath)
if (file.open(QIODevice.ReadOnly)):
self.gpxDoc.setContent(file)
file.close()
self.gpxRoot=self.gpxDoc.documentElement()
trkNodes=self.gpxRoot.elementsByTagName("trk")
self.gpxTrk=trkNodes.item(trkNodes.length()-1).toElement()
self.gpxTrkseg=self.gpxDoc.createElement("trkseg")
self.gpxTrk.appendChild(self.gpxTrkseg)
else:
(self.gpxDoc,self.gpxTrkseg)=GpxCreation.createDom()
self.gpxTrksegStartTime=datetime.datetime.now()
def initializeGpxOutput(self):
"""Preinitialize gpx output object."""
self.gpxDoc = QDomDocument()
if os.path.isfile(self.gpxPath):
file = QFile(self.gpxPath)
if (file.open(QIODevice.ReadOnly)):
self.gpxDoc.setContent(file)
file.close()
self.gpxRoot = self.gpxDoc.documentElement()
trkNodes = self.gpxRoot.elementsByTagName("trk")
self.gpxTrk = trkNodes.item(trkNodes.length() - 1).toElement()
self.gpxTrkseg = self.gpxDoc.createElement("trkseg")
self.gpxTrk.appendChild(self.gpxTrkseg)
else:
(self.gpxDoc, self.gpxTrkseg) = GpxCreation.createDom()
self.gpxTrksegStartTime = datetime.datetime.now()