def split_segments_by_length(gpx_segments_list: List[GPXTrackSegment], *, max_length_m: int = 100) \
-> List[GPXTrackSegment]:
"""
Split GPX track segments until all are shorter than max_length_m
:param: gpx_segments_list: List of GPX track segments to be processed
:param: max_length_m: Maximum length of track segment above which the segment should be split
:return: List of GPX track segments that are all shorter than max_length_m
"""
gpx_split_segments_list = []
buffer = collections.deque(gpx_segments_list)
while len(buffer) > 0:
segment = buffer.popleft()
if segment.length_2d() < max_length_m:
gpx_split_segments_list.append(segment)
else:
buffer.append(GPXTrackSegment(segment.points[:len(segment.points)//2]))
buffer.append(GPXTrackSegment(segment.points[len(segment.points)//2:]))
return gpx_split_segments_list
def observations_to_gpx(
observations: List[JsonResponse], output_file: str = "observations.gpx", track: bool = True
):
"""Convert a list of observations to a set of GPX waypoints or a GPX track
Args:
observations: JSON observations
output_file: File path to write to
track: Create an ordered GXP track; otherwise, create unordered GPX waypoints
"""
gpx = GPX()
logger.info(f"Converting {len(observations)} to GPX points")
points = [observation_to_gpx_point(obs, track=track) for obs in observations]
if track:
gpx_track = GPXTrack()
gpx.tracks.append(gpx_track)
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
gpx_segment.points = points
else:
gpx.waypoints = points
# Save to file
logger.info(f"Writing GPX data to {output_file}")
with open(output_file, "w") as f:
f.write(gpx.to_xml())
def optimize_segment(seg):
""" RDP algorithm """
result = GPXTrackSegment()
arr = np.array(list(map(lambda p: [p.latitude, p.longitude], seg.points)))
mask = rdp(arr, algo="iter", return_mask=True, epsilon=EPSILON)
parr = np.array(list(seg.points))
result.points = list(parr[mask])
return result
def setUp(self):
self.short_segment_as_array = np.array([[1., 0., 3]])
self.short_segment = GPXTrackSegment(
[gpx_point_from_array(self.short_segment_as_array[0])])
self.long_segment_as_array = np.random.normal(size=(25, 3))
self.long_segment = GPXTrackSegment([
gpx_point_from_array(point_data)
for point_data in self.long_segment_as_array
])
def test_segment_short_1(self):
input = [GPXTrackSegment(self.segment_1.points[0:3])]
smoothen_coordinates(input)
expected_result = [GPXTrackSegment([self.expected_1.points[0]])]
self.assertEqual(len(input), 1)
self.assertEqual(len(input[0].points), 1)
np.testing.assert_array_almost_equal(
gpx_point_to_array(input[0].points[0]),
gpx_point_to_array(expected_result[0].points[0]))
def setUp(self):
self.segment_1 = GPXTrackSegment([
GPXTrackPoint(longitude=.1, latitude=1, elevation=10),
GPXTrackPoint(longitude=.2, latitude=2, elevation=20),
GPXTrackPoint(longitude=.3, latitude=3, elevation=30),
GPXTrackPoint(longitude=.5, latitude=-1, elevation=0)
])
self.expected_1 = GPXTrackSegment([
GPXTrackPoint(longitude=.2, latitude=2, elevation=20),
GPXTrackPoint(longitude=1. / 3, latitude=4. / 3, elevation=50. / 3)
])
def main(gps_log, lawnmower_log):
with open(gps_log) as fp:
gpx = GPX()
#Fill in the Waypoints and what the lawnmower saw
with open(lawnmower_log) as fpi:
# Create track for lawnmower
gpx_track = GPXTrack(name="Lawmower GPS Log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for l in fpi:
m = re.match(lawnmower_wpt_fmt, l)
if m:
point_num = int(m.group(2))
lat = float(m.group(3))
lon = float(m.group(4))
gpx.waypoints.append(GPXWaypoint(lat,lon,description="P%d" % point_num, type="Lawnmower"))
m = re.match(lawnmower_gps_fmt, l)
if m:
ctime = parse_time(m.group(1))
lat = float(m.group(2))
lon = float(m.group(3))
gpx_segment.points.append(GPXTrackPoint(lat,lon,time=ctime))
# Create track of raw GPS log:
gpx_track = GPXTrack(name="GPS Log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for l in fp:
m = re.match(gps_fmt, l)
if m:
ctime = parse_time(m.group(1))
lat = float(m.group(2))
lon = float(m.group(3))
#'time' since last DGPS fix is group 4
hdop = float(m.group(5))
fix_quality = int(m.group(6))
num_satellites = int(m.group(7))
gpx_segment.points.append(GPXTrackPoint(lat,lon,horizontal_dilution=hdop,time=ctime))
with open("lawnmower_log.gpx", "w") as fpo:
print(gpx.to_xml(), file=fpo)
def main(naza_log):
with open(naza_log) as fp:
gpx = GPX()
# Create track of raw GPS log:
gpx_track = GPXTrack(name="GPS Log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for l in fp:
row = l.split(",")
ctime = datetime.strptime(row[0], time_fmt)
lat, lon, alt = float(row[1]), float(row[2]), float(row[3])
speed, cog, calheading = float(row[4]), float(row[5]), float(
row[6])
hdop, vdop = float(row[7]), float(row[8])
fixtype, numsat = int(row[9]), int(row[10])
gpx_segment.points.append(
GPXTrackPoint(lat,
lon,
alt,
horizontal_dilution=hdop,
vertical_dilution=vdop,
speed=speed,
name=str(calheading),
time=ctime))
with open("naza_log.gpx", "w") as fpo:
print(gpx.to_xml(), file=fpo)
def _gpx_for_logs(self, logs):
g = GPX()
track = GPXTrack()
track.source = 'pizero-gpslog %s' % VERSION
g.tracks.append(track)
seg = GPXTrackSegment()
track.segments.append(seg)
for item in logs:
try:
tpv = item['tpv'][0]
sky = item['sky'][0]
p = GPXTrackPoint(latitude=tpv['lat'],
longitude=tpv['lon'],
elevation=tpv['alt'],
time=TIME_TYPE.from_string(tpv['time']),
speed=tpv['speed'],
horizontal_dilution=sky.get('hdop', None),
vertical_dilution=sky.get('vdop', None),
position_dilution=sky.get('pdop', None))
if tpv['mode'] == 2:
p.type_of_gpx_fix = '2d'
elif tpv['mode'] == 3:
p.type_of_gpx_fix = '3d'
if 'satellites' in sky:
p.satellites = len(sky['satellites'])
seg.points.append(p)
except Exception:
sys.stderr.write('Exception loading line %d:\n' %
item['lineno'])
raise
return g
def filter_segments_spt(segments, max_dist_error, max_speed_error):
new_segments = []
for segment in segments:
points = util.remove_duplicates(segment.points)
new_segments.append(
GPXTrackSegment(util.spt(points, max_dist_error, max_speed_error)))
return new_segments
def main(gps_log):
with open(gps_log) as fp:
gpx = GPX()
# Create track of raw GPS log:
gpx_track = GPXTrack(name="GPS Log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for l in fp:
m = re.match(gps_fmt, l)
if m:
ctime = parse_time(m.group(1))
lat = float(m.group(2))
lon = float(m.group(3))
#speed = float(m.group(4))
bearing = m.group(5)
#alt = float(m.group(6))
speed = 0
alt = 0
gpx_segment.points.append(GPXTrackPoint(lat,lon,time=ctime, speed=speed, elevation=alt, name=bearing))
with open("gps_log.gpx", "w") as fpo:
print(gpx.to_xml(), file=fpo)
def to_gpx(observations: AnyObservations,
filename: str = None,
track: bool = True) -> str:
"""Convert a list of observations to a set of GPX waypoints or a GPX track
Example:
>>> from pyinaturalist import get_observations
>>> from pyinaturalist_convert import to_gpx
>>>
>>> results = get_observations(
... project_id=36883, # ID of the 'Sugarloaf Ridge State Park' project
... created_d1='2020-01-01', # Get observations from January 2020...
... created_d2='2020-09-30', # ...through September 2020
... geo=True, # Only get observations with coordinates
... geoprivacy='open', # Only get observations with public coordinates
... page='all', # Paginate through all response pages
... )
>>> to_gpx(results, '~/tracks/observations-36883.gpx')
Args:
observations: JSON observations
filename: Optional file path to write to
track: Create an ordered GPX track; otherwise, create unordered GPX waypoints
Returns:
GPX XML as a string
"""
gpx = GPX()
points = [
to_gpx_point(obs, track=track) for obs in to_dict_list(observations)
]
if track:
gpx_track = GPXTrack()
gpx.tracks.append(gpx_track)
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
gpx_segment.points = points
else:
gpx.waypoints = points
gpx_xml = gpx.to_xml()
if filename:
write(gpx_xml, filename)
return gpx_xml
def setUp(self):
self.segment_1 = GPXTrackSegment([
GPXTrackPoint(longitude=.1, latitude=1, elevation=10),
GPXTrackPoint(longitude=.2, latitude=2, elevation=20),
GPXTrackPoint(longitude=.3, latitude=3, elevation=30)
])
self.expected_path_1 = \
np.array([[0., 0., 0.],
[1.0049875621, 0., 10],
[2.00997512422, 0., 20],
[0., 0., 0.]])
def bearing_splitter(points_set, degree_threshold, min_length):
segments = []
segment = GPXTrackSegment()
previous_bearing = None
idx = 0
while idx < len(points_set) - 1:
current_bearing = util.compass_bearing(points_set[idx], points_set[idx + 1])
if previous_bearing is not None:
diff_bearing = abs(previous_bearing - current_bearing)
if diff_bearing > 180:
diff_bearing = abs(diff_bearing - 360)
if diff_bearing > degree_threshold:
segment.points.append(points_set[idx])
if segment.length_2d() > min_length:
segments.append(segment)
previous_bearing = None
segment = GPXTrackSegment()
# Not increase index. Next iteration must restart from this point
else:
segment.points.append(points_set[idx])
previous_bearing = current_bearing
idx += 1
else:
segment.points.append(points_set[idx])
previous_bearing = current_bearing
idx += 1
segment.points.append(points_set[idx]) # append last point
if segment.length_2d() > min_length:
segments.append(segment)
return segments
def split_by_distance(seg, max_distance=DISTANCE_THRESHOLD):
""" Split segment if distance between two points exceeds max_distance """
result = []
last_split = 0
for i in range(len(seg.points) - 1):
s = seg.points[i]
f = seg.points[i + 1]
if get_distance(s, f) > max_distance:
result.append(seg.points[last_split:i + 1])
last_split = i + 1
if i == len(seg.points) - 5:
result.append(seg.points[last_split:i + 1])
return list(
map(lambda points: GPXTrackSegment(points=points),
filter(lambda p: len(p) > 2, result)))
def test_latitude_calculation(self):
gpxpy_instance = GPX()
gpxpy_instance.tracks.append(GPXTrack())
gpxpy_instance.tracks[0].segments.append(GPXTrackSegment())
points = gpxpy_instance.tracks[0].segments[0].points
longitude_distance_km = 111.31949079327357
self.assertEqual(lon2kilometers(lon_count=1), longitude_distance_km)
self.assertEqual(kilometers2lon_count(longitude_distance_km), 1)
for lon_count in range(10):
distance_km = lon2kilometers(lon_count)
self.assert_equal_rounded(distance_km, longitude_distance_km * lon_count)
self.assert_equal_rounded(kilometers2lon_count(distance_km), lon_count, decimal_places=0)
def gpxdump(pts):
gpx = GPX()
# Create track
gpx_track = GPXTrack(name="Lawnmower pattern")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for pt in pts:
gpx_segment.points.append(GPXTrackPoint(pt.lat, pt.lon))
with open("lawnmower.gpx", "w") as fpo:
print(gpx.to_xml(), file=fpo)
def filter_segments(gpx_segments_list: List[GPXTrackSegment], min_distance_m: float = 5) \
-> List[GPXTrackSegment]:
"""
Filter points from GPX track segments that are too close to each other
:param: gpx_segments_list: List of GPX track segments to be processed
:param: min_distance_m: Minimum distance between consecutive track points after filtering
:return: List of GPX track segments that are all shorter than max_length_m
"""
gpx_filtered_segments_list = []
for segment in gpx_segments_list:
points = [segment.points[0]]
last_kept = segment.points[0]
for point in segment.points[1:]:
if GPXTrackSegment([last_kept, point]).length_2d() > min_distance_m:
points.append(point)
last_kept = point
gpx_filtered_segments_list.append(GPXTrackSegment(points))
return gpx_filtered_segments_list
def gpxdump(pts):
gpx = GPX()
# Create track
gpx_track = GPXTrack(name="Spiral pattern")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for pt in pts:
gpx_segment.points.append(
GPXTrackPoint(pt.lat, pt.lon, elevation=pt.alt))
with open("spiral.gpx", "w") as fpo:
print(gpx.to_xml(), file=fpo)
def test_create_work_as_expected(self, gpxpy_mock):
# Given some fake GPX data
pnt1 = GPXTrackPoint(latitude=1,
longitude=1,
time=datetime(2016, 1, 1))
pnt2 = GPXTrackPoint(latitude=2,
longitude=2,
time=datetime(2016, 1, 2))
segment = GPXTrackSegment(points=[pnt1, pnt2])
track = GPXTrack()
track.segments = [segment]
gpx = GPX()
gpx.tracks = [track]
# Given a mock gpxpy that returns the fake data
gpxpy_mock.parse.return_value = gpx
trackpoint_mock = Mock()
up_file = Mock()
up_file.read.return_value.decode.return_value = sentinel.gpx_raw
# When creating trackpoints
tps = create_trackpoints(sentinel.track, up_file, trackpoint_mock)
# Then the correct stuff happens
assert len(tps) == 2
trackpoint_mock.assert_any_call(lat=1,
lon=1,
sog=0,
timepoint=datetime(2016,
1,
1,
tzinfo=pytz.UTC),
track=sentinel.track)
trackpoint_mock.assert_any_call(lat=2,
lon=2,
sog=1.819738796736955,
timepoint=datetime(2016,
1,
2,
tzinfo=pytz.UTC),
track=sentinel.track)
gpxpy_mock.parse.assert_called_once_with(sentinel.gpx_raw)
up_file.read.assert_called_once_with()
up_file.read.return_value.decode.assert_called_once_with('utf-8')
def __init__(self, segment: GPXTrackSegment, num_points_path: int = 25) -> None:
"""
Construct GpxSegmentStats object.
:param: segment: GPX track segment
:param: num_points_path: Maximal length of points in path features
"""
self.name = getattr(segment, 'name', 'NotAvailable')
self.length2d = segment.length_2d()
self.length3d = segment.length_3d()
self.duration = float(segment.get_duration()) \
if segment.get_duration() is not None else float(-1)
self.moving_time = segment.get_moving_data().moving_time
self.stopped_time = segment.get_moving_data().stopped_time
self.total_uphill = segment.get_uphill_downhill().uphill
self.total_downhill = segment.get_uphill_downhill().downhill
self.path = convert_path_to_feature(segment, num_points_path)
def generate_gpx_track(track_length_km,
point_count,
pace_min,
start_longitude=0,
start_date=datetime(2018, 5, 30, 10, 00)):
distance_km = track_length_km / point_count
print("km between points:", distance_km)
longitude_diff = kilometers2lon_count(distance_km)
print("longitude diff:", longitude_diff)
time_delta = timedelta(minutes=(pace_min * distance_km))
print("time delta:", time_delta)
gpxpy_instance = GPX()
gpxpy_instance.tracks.append(GPXTrack())
gpxpy_instance.tracks[0].segments.append(GPXTrackSegment())
points = gpxpy_instance.tracks[0].segments[0].points
points.append(
GPXTrackPoint(latitude=0,
longitude=start_longitude,
elevation=0,
time=start_date))
print("Start point:", points[-1])
td = 0
current_longitude = start_longitude
current_datetime = start_date
for point_no in range(point_count):
current_longitude += longitude_diff
current_datetime += time_delta
points.append(
GPXTrackPoint(latitude=0,
longitude=current_longitude,
elevation=0,
time=current_datetime))
print("point %i: %s" % (point_no + 1, points[-1]))
print("\ttime diff:", points[-1].time_difference(points[-2]))
print("\tdistance 2d:", points[-1].distance_2d(points[-2]))
print("\tdistance 3d:", points[-1].distance_3d(points[-2]))
td += points[-1].distance_3d(points[-2])
print("\t", td)
return gpxpy_instance
def add_points(self, points) ->None:
"""Adds points to last segment in the last track. If no track
is allocated yet and points is not an empty list, allocates
a track.
Args:
points (list(GPXTrackPoint): The points to be added
"""
if points:
if self.__gpx.tracks:
# make sure the same points are not added twice
assert points != self.__gpx.tracks[-1].segments[-1].points[-len(points):]
self._load_full()
if not self.__gpx.tracks:
self.__gpx.tracks.append(GPXTrack())
self.__gpx.tracks[0].segments.append(GPXTrackSegment())
self.__gpx.tracks[-1].segments[-1].points.extend(points)
self.dirty = 'gpx'
def _gpx_for_logs(self):
g = GPX()
track = GPXTrack()
track.source = 'pizero-gpslog gmc-500'
g.tracks.append(track)
seg = GPXTrackSegment()
track.segments.append(seg)
prev_alt = 0.0
for idx, item in enumerate(self.lines):
try:
tpv = item['tpv'][0]
sky = item['sky'][0]
alt = tpv.get(
'alt', item['gst'][0].get('alt', prev_alt)
)
prev_alt = alt
p = GPXTrackPoint(
latitude=tpv['lat'],
longitude=tpv['lon'],
elevation=alt,
time=TIME_TYPE.from_string(tpv['time']),
speed=tpv['speed'],
horizontal_dilution=sky.get('hdop', None),
vertical_dilution=sky.get('vdop', None),
position_dilution=sky.get('pdop', None)
)
if tpv['mode'] == 2:
p.type_of_gpx_fix = '2d'
elif tpv['mode'] == 3:
p.type_of_gpx_fix = '3d'
if 'satellites' in sky:
p.satellites = len(sky['satellites'])
cpm = item.get('_extra_data', {}).get('data', {}).get('cpm', 0)
seg.points.append(p)
except Exception:
logger.error(
'Error loading line %d: %s', idx, item
)
raise
return g
def test_segment_empty(self):
smoothen_coordinates([GPXTrackSegment()])
def save_to_gpx(nav_df: pd.DataFrame, fileOutPN, gpx_obj_namef=None, waypoint_symbf=None, cfg_proc=None, gpx=None): #
"""
Save navigation from dataframe to *.gpx file. track or waypoints.
Generate waypoints names and selects symbols from cfg['out']['gpx_symbols'] based on current row in nav_df
:param nav_df: DataFrame with fields:
if waypoint_symbf: itbl, ...
:param fileOutPN: *.gpx file full name without extension. Set None to not write (useful if need only gpx)
:param gpx_obj_namef: str or fun(waypoint number). If None then we set it to fileOutPN.stem
:param waypoint_symbf: str or fun(nav_df record = row). If None saves track
:param cfg_proc:
'simplify_tracks_error_m'
'dt_per_file'
'b_missed_coord_to_zeros'
period_segments or period_tracks: to split track by this in one file
:param gpx: gpx object to update. If None (default) then will be created here, updated and saved
:return: None
"""
if nav_df.empty:
l.warning('no data')
return
if gpx_obj_namef is None:
gpx_obj_namef = Path(fileOutPN).stem
if cfg_proc is None:
cfg_proc = {'dt_per_file': None}
elif not 'dt_per_file' in cfg_proc:
cfg_proc['dt_per_file'] = None
if gpx is None:
gpx = GPX()
if waypoint_symbf:
# , fun_symbol= 'Waypoint', fun_name= str
if isinstance(waypoint_symbf, str):
s = waypoint_symbf
waypoint_symbf = lambda x: s
b_useDepEcho = 'DepEcho' in nav_df.columns and any(nav_df['DepEcho'])
w_names = set()
# w_name = None # same perpose for not all conditions but faster
# nav_dft= nav_df.reset_index().set_index('itbl', drop=False, append=True) #, inplace=True
# for t in range(nav_dft.itbl.min(), nav_dft.itbl.max()+1): #.ptp() = -
for t, nav_dft in nav_df.groupby(['itbl']): # .reset_index()
for i, r in enumerate(nav_dft.itertuples()): # .loc[t] name=None
str_time_short = '{:%d %H:%M}'.format(r.Index.to_pydatetime())
timeUTC = r.Index.tz_convert(None).to_pydatetime()
str_time_long = '{:%d.%m.%y %H:%M:%S}'.format(timeUTC)
name = gpx_obj_namef if isinstance(gpx_obj_namef, str) else gpx_obj_namef(i, r, t)
# remove duplicates by add letter
name_test_dup = name
i_dup = 0
while name_test_dup in w_names: # name== w_name or :
name_test_dup = name + chr(97 + i_dup) # chr(97) = 'a'
i_dup += 1
else:
name = name_test_dup
w_names.add(name)
gpx_waypoint = GPXWaypoint(
latitude=r.Lat,
longitude=r.Lon,
time=timeUTC,
description=str_time_long,
comment=str_time_short,
name=name,
symbol=waypoint_symbf(r),
elevation=-r.DepEcho if b_useDepEcho and np.isfinite(
r.DepEcho) else None) # , description=, type=, comment=
# if not i_dup:
# w_name = name # to check duplicates on next cycle
gpx.waypoints.append(gpx_waypoint)
if isinstance(gpx_obj_namef, str):
gpx.description = gpx_obj_namef
if fileOutPN:
gpx.author_email = '*****@*****.**'
write_file(fileOutPN, gpx.to_xml())
else: # tracks
# loc= np.zeros_like(nav_df.index, dtype= int)
# Lat= np.zeros_like(nav_df.index, dtype= np.float64)
# Lon= np.zeros_like(nav_df.index, dtype= np.float64)
# T= np.zeros_like(nav_df.index, dtype= pd.Timedelta)
b_have_depth = ('DepEcho' in nav_df.columns)
#b_have_speed = ('Speed' in nav_df.columns)
period_split = cfg_proc.get('period_segments') or cfg_proc.get('period_tracks')
if period_split:
period_split = pd_period_to_timedelta(period_split)
t_intervals_start = pd.date_range(
start=nav_df.index[0].normalize(),
end=max(nav_df.index[-1],
nav_df.index[-1].normalize() + period_split),
freq=period_split)[1:] # make last t_interval_start >= all_data[-1]
#format_time =
else:
t_intervals_start = nav_df.index[-1:] # series with 1 last value
t_interval_end = nav_df.index[0]
n_intervals_without_data = 0
part = 0
nav_df = nav_df.tz_convert('utc', copy=False)
Tprev = nav_df.index[0].to_pydatetime()
Tcur = Tprev
if not cfg_proc.get('period_tracks'):
gpx_track = gpx_track_create(gpx, gpx_obj_namef)
for t_interval_start in t_intervals_start:
t_interval = slice(t_interval_end, t_interval_start) # from previous last
# USEtime = [[t_interval_end.isoformat(), t_interval_start.isoformat()]]
nav_df_cur = nav_df.truncate(t_interval_end, t_interval_start, copy=True)
t_interval_end = t_interval_start
# load_interval
if not len(nav_df_cur):
print('empty interval')
n_intervals_without_data += 1
if n_intervals_without_data > 30:
print('30 intervals without data => think it is the end')
break
continue
gpx_segment = GPXTrackSegment()
if cfg_proc.get('period_tracks'):
fmt = '%y-%m-%d' if t_interval_start.second==0 and t_interval_start.hour==0 else '%y-%m-%d %H:%M'
track_name = f'{gpx_obj_namef} {t_interval_start:{fmt}}'
gpx_track = gpx_track_create(gpx, track_name)
gpx_track[track_name].segments.append(gpx_segment)
else:
gpx_track[gpx_obj_namef].segments.append(gpx_segment)
for i, r in enumerate(nav_df_cur.itertuples()):
Tcur = r.Index.to_pydatetime()
gpx_point = GPXTrackPoint(
latitude=r.Lat, longitude=r.Lon,
elevation=r.DepEcho if b_have_depth and not np.isnan(r.DepEcho) else None,
time=Tcur) # , speed= speed_b, comment= Comment
gpx_segment.points.append(gpx_point)
# if i==1:
# gpx.description= gpx_obj_namef
# gpx.author_email= '*****@*****.**'
# gpxxml= gpx.to_xml()
# tree = ET.parse(gpxxml)
# root = tree.getroot()
if cfg_proc.get('simplify_tracks_error_m'):
try:
gpx_segment.points = gpxpy_simplify_polyline(gpx_segment.points,
cfg_proc['simplify_tracks_error_m'])
except RecursionError as e:
recursion_limit = sys.getrecursionlimit()
l.error('Check time in data! Why increasing old recursion limit (%s) is needed? Trying: x10...',
recursion_limit)
try:
sys.setrecursionlimit(recursion_limit * 10)
gpx_segment.points = gpxpy_simplify_polyline(gpx_segment.points,
cfg_proc['simplify_tracks_error_m'])
l.warning('now track simplified successfuly')
except Exception as e:
l.exception('not succes. skip simplifying tracks', recursion_limit)
if cfg_proc['dt_per_file'] and Tcur - Tprev > cfg_proc['dt_per_file']: # save to next file
part += 1
if fileOutPN:
gpx_proc_and_save(gpx, gpx_obj_namef, cfg_proc, f'{fileOutPN}part{part}')
gpx_track = gpx_track_create(gpx, gpx_obj_namef)
Tprev = Tcur
if fileOutPN:
gpx_proc_and_save(gpx, gpx_obj_namef, cfg_proc, fileOutPN)
return gpx
from gpxpy.gpx import GPX, GPXTrack, GPXTrackSegment, GPXTrackPoint
from pandas import read_csv, to_datetime
basename = '2018-06-07'
df = read_csv('{0}.csv'.format(basename))
df['timestamp']= to_datetime(df.time)
gpx_obj = GPX()
gpx_track = GPXTrack()
gpx_obj.tracks.append(gpx_track)
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
gpx_segment.points.extend(
(
GPXTrackPoint(
time=row.timestamp,
latitude=row.latitude,
longitude=row.longitude
) for row in df.itertuples()
)
)
with open('{0}.gpx'.format(basename), 'w') as gpx_file:
gpx_file.write(gpx_obj.to_xml())
def main(gps_log, waypoints_log):
with open(gps_log) as fp:
gpx = GPX()
#Fill in the Waypoints and what the lawnmower saw
with open(waypoints_log) as fpi:
# Create track for lawnmower
gpx_track = GPXTrack(name="Waypoints GPS Log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
waypoints = []
for l in fpi:
m = re.match(waypts_wpt_fmt, l)
if m:
waypoints.append((m.group(2), m.group(3)))
m = re.match(waypts_gps_fmt, l)
if m:
ctime = parse_time(m.group(1))
lat = float(m.group(2))
lon = float(m.group(3))
gpx_segment.points.append(
GPXTrackPoint(lat, lon, time=ctime))
waypoints = f7(waypoints)
for i in range(len(waypoints)):
lat, lon = float(waypoints[i][0]), float(waypoints[i][1])
gpx.waypoints.append(
GPXWaypoint(lat,
lon,
description="P%d" % (i + 1),
type="Waypoints"))
# Create track of raw GPS log:
gpx_track = GPXTrack(name="GPS Log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
for l in fp:
m = re.match(gps_fmt, l)
if m:
ctime = parse_time(m.group(1))
lat = float(m.group(2))
lon = float(m.group(3))
#'time' since last DGPS fix is group 4
hdop = float(m.group(5))
fix_quality = int(m.group(6))
num_satellites = int(m.group(7))
gpx_segment.points.append(
GPXTrackPoint(lat,
lon,
horizontal_dilution=hdop,
time=ctime))
with open("waypoints_log.gpx", "w") as fpo:
print(gpx.to_xml(), file=fpo)
def main(wpt_log):
with open(wpt_log) as fp:
gpx = GPX()
name, ext = os.path.splitext(wpt_log)
# Create track for the waypoints
gpx_track = GPXTrack(name="Waypoints log")
gpx.tracks.append(gpx_track)
# Create segment in GPX track:
gpx_segment = GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
#An empty detected object
det = {}
for l in fp:
m = re.match(gen_fmt, l)
if m:
if m.group(2).startswith("Waypoint"):
m2 = re.match(wpt_fmt,m.group(3))
if m2:
lat = float(m2.group(1))
lon = float(m2.group(2))
alt = float(m2.group(3))
if m2.group(4):
roi_lat = float(m2.group(4))
roi_lon = float(m2.group(5))
roi_alt = float(m2.group(6))
#TODO ???
wpt = GPXWaypoint(lat, lon, alt,
description="W" + m.group(2)[9:],
type="Waypoint")
gpx.waypoints.append(wpt)
elif m.group(2) == "At":
m2 = re.match(gps_fmt, m.group(3))
if m2:
ctime = parse_time(m.group(1))
lat = float(m2.group(1))
lon = float(m2.group(2))
alt = float(m2.group(3))
try:
hdg = m2.group(4)
except ValueError:
hdg = None
gpx_segment.points.append(GPXTrackPoint(lat,lon,alt,time=ctime,comment=hdg))
elif m.group(2).startswith("Detected"):
id = m.group(3)[3:]
det = {"ID" : id}
elif m.group(2) == "Location":
m2 = re.match(gps_fmt, m.group(3))
if m2:
det["time"] = parse_time(m.group(1))
det["lat"] = float(m2.group(1))
det["lon"] = float(m2.group(2))
det["alt"] = float(m2.group(3))
try:
det["hdg"] = m2.group(4)
except ValueError:
det["hdg"] = None
elif m.group(2) == "Image":
n = os.path.basename(m.group(3))
det["img"] = "pics/" + n
poi = GPXWaypoint(det["lat"], det["lon"], det["alt"],
time=det["time"], comment=det["hdg"],
symbol=det["img"],
description="POI" + det["ID"],
type="Point of interest")
gpx.waypoints.append(poi)
print(gpx.to_xml())
def test_segment_empty(self):
with self.assertRaises(AssertionError):
convert_path_to_feature(GPXTrackSegment(), 1)