def _updateLogCB(self):
"""add current position at the end of the log"""
pos = self.get('pos', None)
if pos and not self.loggingPaused:
timestamp = geo.timestamp_utc()
lat, lon = pos
elevation = self.get('elevation', None)
self.log1.add_point_llet(lat, lon, elevation, timestamp)
self.log2.add_point_llet(lat, lon, elevation, timestamp)
# update statistics for the current log
if self.loggingEnabled and not self.loggingPaused:
# update the current log speed statistics
currentSpeed = self.get('speed', None)
if currentSpeed:
# max speed
if currentSpeed > self.maxSpeed:
self.maxSpeed = currentSpeed
# avg speed
self.avg1 += currentSpeed
self.avg2 += (time.time() - self.lastUpdateTimestamp)
self.avgSpeed = self.avg1 / self.avg2
self.lastUpdateTimestamp = time.time()
# update traveled distance
if self.lastCoords:
lLat, lLon = self.lastCoords
self.distance += geo.distance(lLat, lLon, lat, lon)
self.lastCoords = lat, lon
# update the on-map trace
if self.lastTracePoint:
lat1, lon1 = self.lastTracePoint
# check if the point is distant enough from the last added point
# (which was either the first point or also passed the test)
addToTrace = True
try:
addToTrace = geo.distance_approx(
lat, lon, lat1,
lon1) * 1000 >= DONT_ADD_TO_TRACE_THRESHOLD
except Exception:
self.log.exception(
"measuring distance failed (yeah, really! :P), adding point anyway"
)
if addToTrace:
self._addLL2Trace(lat, lon)
else: # this is the first known log point, just add it
self._addLL2Trace(lat, lon)
# done, trigger the tracklog updated signal
self.tracklogUpdated()
def save_to_CSV(self, path, append=False):
"""Save all points to a CSV file
NOTE: message points are not (yet) handled
TODO: message point support
"""
timestamp = geo.timestamp_utc()
try:
f = open(path, "w")
writer = csv.writer(f, dialect=csv.excel)
points = self.points_lle
for p in points:
writer.writeRow(p[0], p[1], p[2], timestamp)
f.close()
log.info('%d points saved to %s as CSV', path, len(points))
return True
except Exception:
log.exception('saving to CSV failed')
return False
def __init__(self, points=None):
if not points: points = []
Way.__init__(self)
self._points = [] # stored as (lat, lon, elevation, timestamp) tuples
self.increment = [] # not yet saved increment, also LLET
self.file = None
self._file_path = None
self.writer = None
self._points_lock = threading.RLock()
if points:
with self._points_lock:
# mark all points added on startup with a single timestamp
timestamp = geo.timestamp_utc()
# convert to LLET
points = [(x[0], x[1], x[2], timestamp) for x in points]
# mark points as not yet saved
self.increment = points
# and also add to main point list
self._points = points
def add_point_lle(self, lat, lon, elevation=None):
with self._points_lock:
self._points.append((lat, lon, elevation, geo.timestamp_utc()))
self.increment.append((lat, lon, elevation, geo.timestamp_utc()))
def add_point(self, point):
with self._points_lock:
lat, lon, elevation = point.getLLE()
self._points.append((lat, lon, elevation, geo.timestamp_utc()))
self.increment.append((lat, lon, elevation, geo.timestamp_utc()))