def cluster(csv2read, outFileName):
print "generating culster information"
ptscsv = pd.read_csv(csv2read, index_col=0)
unqSegIDs = ptscsv.sid.unique()
result = pd.DataFrame()
oldgrp = None
for unqSID in unqSegIDs:
meanCol = []
grp = ptscsv[ptscsv['sid'] == unqSID]
grp.is_copy = False # supress copy warning while assignment
mean = grp.mean().lat, grp.mean().lon
grp['mlat'] = mean[0]
grp['mlon'] = mean[1]
if oldgrp is not None:
grp['dir'] = mod_geo.get_bearing(
mod_geo.Location(oldgrp[0], oldgrp[1]),
mod_geo.Location(mean[0], mean[1]))
else:
grp['dir'] = None
result = result.append(grp, ignore_index=True)
oldgrp = mean[0], mean[1]
devList = []
distList = []
oldID = None
oldRow = None
for i, r in result.iterrows():
if not pd.isnull(r.dir):
dist = mod_geo.distance(r.mlat, r.mlon, None, r.lat, r.lon, None)
dirTgt = mod_geo.get_bearing(
mod_geo.Location(oldID.mlat, oldID.mlon),
mod_geo.Location(r.lat, r.lon))
dir90 = mod_geo.get_bearing(mod_geo.Location(r.mlat, r.mlon),
mod_geo.Location(r.lat, r.lon))
if (r.dir > dirTgt):
dist = dist * (-1)
distList.append(dist)
devList.append(cartDist(r.lat, r.lon, r.mlat, r.mlon))
else:
distList.append(
mod_geo.distance(r.mlat, r.mlon, None, r.lat, r.lon, None))
devList.append(cartDist(r.lat, r.lon, r.mlat, r.mlon))
if oldID is None:
oldID = r
else:
if (oldRow.dir != r.dir) and (not pd.isnull(r.dir)):
oldID = oldRow
oldRow = r
result['dev'] = devList
result['dist'] = distList
result.to_csv(outFileName)
print "written : " + outFileName
return outFileName
def estCenters(c):
# c is an array of points on the sampling segment.
mc = c.mean(axis=0)
percentToMove = 1.5
for i in range(len(c)):
dir = mod_geo.get_bearing(mod_geo.Location(c[i][0], c[i][1]),
mod_geo.Location(mc[0], mc[1]))
distBet = mod_geo.distance(c[i][0], c[i][1], None, mc[0], mc[1], None)
if (distBet >= c[i][2]):
mDist = c[i][2] * percentToMove
updatedPoint = mod_geo.point_from_distance_bearing(
mod_geo.Location(c[i][0], c[i][1]), mDist, dir)
else:
updatedPoint = mod_geo.Location(mc[0], mc[1])
c[i][0], c[i][1] = updatedPoint.latitude, updatedPoint.longitude
return c.mean(axis=0)
def crossSection():
'''
performs a cross section along a given track
at minimum distance of every cxInt meters
width of section is cxWidth
points output are in right to left direction
'''
gpx_file = open('..\..\samples\A67lt.gpx', "r")
gpx = gpxpy.parse(gpx_file)
gpxOpTmp = gpxpy.gpx.GPX()
for tracks in gpx.tracks:
gpx_track = gpxpy.gpx.GPXTrack()
gpxOpTmp.tracks.append(gpx_track)
for segment in tracks.segments:
oldPoint = []
for point in segment.points:
currPt = [point.latitude, point.longitude]
if (oldPoint == []):
oldPoint = currPt
else:
dist = mod_geo.distance(oldPoint[0], oldPoint[1], None,
currPt[0], currPt[1], None, True)
direction = mod_geo.get_bearing(
mod_geo.Location(oldPoint[0], oldPoint[1]),
mod_geo.Location(currPt[0], currPt[1]))
# code to take cross section at regular distance [global]
if (dist < cxInt):
midpt = mod_geo.midpoint_cartesian(oldPoint, currPt)
addCx(midpt, direction, gpx_track)
else:
ctr = 1
while True:
if (ctr * cxInt > dist):
break # breaks the while loop
else:
tgtPt = mod_geo.point_from_distance_bearing(
mod_geo.Location(oldPoint[0], oldPoint[1]),
ctr * cxInt, direction)
addCx(tgtPt, direction, gpx_track)
ctr = ctr + 1
oldPoint = currPt
gpx_file.close()
outfile = open('crossSection.gpx', 'w')
outfile.write(gpxOpTmp.to_xml())
def addRandDev(inFile, outFileName):
inFile = pd.read_csv(inFile, index_col=0)
cx = pd.DataFrame()
res = []
mpt = []
d = [2, 5, -1, -3, 4, -2]
for i, r in inFile.iterrows():
mp = ((r.llat + r.rlat) / 2), ((r.llon + r.rlon) / 2)
dir = mod_geo.get_bearing(mod_geo.Location(r.llat, r.llon),
mod_geo.Location(r.rlat, r.rlon))
pt = mod_geo.point_from_distance_bearing(
mod_geo.Location(mp[0], mp[1]), random.choice(d), dir)
res.append({'lat': pt.latitude, 'lon': pt.longitude})
mpt.append({'lat': mp[0], 'lon': mp[1]})
inFile['nlat'] = [i['lat'] for i in res]
inFile['nlon'] = [i['lon'] for i in res]
inFile['lat'] = [i['lat'] for i in mpt]
inFile['lon'] = [i['lon'] for i in mpt]
inFile.to_csv(outFileName)
print "Written : " + outFileName
return outFileName
gpxOpTmp = gpxpy.gpx.GPX()
print "cleaning traces..."
for track in gpx.tracks:
gpx_track = gpxpy.gpx.GPXTrack()
gpxOpTmp.tracks.append(gpx_track)
for segment in track.segments:
gpx_segment = gpxpy.gpx.GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
prev = [segment.points[0].latitude, segment.points[0].longitude]
bearingOld = None
bearingDelta = None
for point in segment.points:
neighCond = dist(prev[0], prev[1], point.latitude,
point.longitude) < nextPtDist
bearing = mod_geo.get_bearing(
mod_geo.Location(prev[0], prev[1]), point)
bearingCond = False
if (bearingDelta == None): bearingCond = True
else: bearingCond = bearingDelta < direction
if (neighCond and bearingCond):
gpx_segment.points.append(
gpxpy.gpx.GPXTrackPoint(point.latitude,
point.longitude))
else:
gpx_track = gpxpy.gpx.GPXTrack()
gpxOpTmp.tracks.append(gpx_track)
gpx_segment = gpxpy.gpx.GPXTrackSegment()
gpx_track.segments.append(gpx_segment)
prev = [point.latitude, point.longitude]
if (bearingOld != None and bearing != None):
def dgpsInt(inFile, traceFile, outFileName):
cx = pd.read_csv(inFile)
f = pd.read_csv(traceFile)
C = None, None
dirList = []
dir = None
cxInter = pd.DataFrame()
thDir = 30 #degrees
startTime = time.time()
for i, r in f.iterrows():
D = Point(r.lat, r.lon)
if (C != (None, None)):
dir = mod_geo.get_bearing(mod_geo.Location(C.x, C.y),
mod_geo.Location(D.x, D.y))
dirList.append(dir)
C = D
f['dir'] = dirList
#f.to_csv(outFileName.split('.')[0] + "__r2_IntBefore.csv")
### fast but risky options
### angular rounding check required
f = f.ix[(f['dir'] < cx.dir.max()) & (f['dir'] > cx.dir.min())]
print 'frames filtered by direction\t: ', len(f)
if len(f) == 0:
print "Nothing to process.. Exiting..."
sys.exit()
f = f.reset_index(drop=True)
print 'finding segment intersection points'
for i, r in cx.iterrows():
A = Point(r.llat, r.llon)
B = Point(r.rlat, r.rlon)
midPt = Point((A.x + B.x) / 2, (A.y + B.y) / 2)
C = None, None
sys.stdout.write("\rcxSeg # %s%s%s ==> %d%%" %
(i + 1, '/', len(cx), (100 * (i + 1) / len(cx))))
sys.stdout.flush()
for vi, v in f.iterrows():
D = Point(v.lat, v.lon)
if (C != (None, None)):
#traceDir = mod_geo.get_bearing(mod_geo.Location(C.x, C.y), mod_geo.Location(D.x, D.y))
traceDir = v.dir
timediff = v.ts - prev.ts
if (timediff < timeThreshold):
sameTrace = True
else:
sameTrace = False
if (traceDir != None and sameTrace):
deltaDir = abs(angleDiff(traceDir, r.dir))
if (deltaDir < thDir):
poi = intersectionPoint(A, B, C, D)
if (poi != (None, None)):
cxInter = cxInter.append(
{
'sid': r.sid,
'lat': poi[0],
'lon': poi[1],
'lanes': 2
},
ignore_index=True)
C = None, None
C = D
prev = v
cxInter.to_csv(outFileName)
print "\nIntersection segments saved in " + outFileName
endTime = time.time()
print "Completed in : " + str(endTime - startTime) + " seconds"
return outFileName
def clusterTypes(inFile, outFile, clusteringMethod):
'''
clusteringMethod : in (kmeans, mbKMeans, meanshift, wkmeans)
'''
f = pd.read_csv(inFile)
# custom filter
#f = f[f['sid']==108]
f = f.dropna()
sids = f.sid.unique()
laneCenters = []
nlanes = 2
for sid in sids:
sel = f[f['sid'] == sid]
# change paramters for weighting...
# dt = np.column_stack((sel.lat, sel.lon, sel.accuracy))
dt = np.column_stack((sel.lat, sel.lon, sel.accuracy**2))
# dt = np.column_stack((sel.lat, sel.lon))
# perform mandatory check to avoid unnecessary errors
if len(dt) >= nlanes:
if clusteringMethod.lower() == "kmeans":
c = s.KMeans(n_clusters=nlanes)
c.fit(dt)
if clusteringMethod.lower() == "mbkmeans":
c = s.MiniBatchKMeans(n_clusters=nlanes)
with warnings.catch_warnings():
warnings.simplefilter("ignore")
c.fit_predict(dt)
if clusteringMethod.lower() == "meanshift":
c = s.MeanShift()
c.fit(dt)
if clusteringMethod.lower() == "wkmeans":
c = ck.Kmeans(dt, nlanes, metric=ck.weightedK, iterno=sid)
centroids = c.cluster_centers_[:, [0, 1]]
laneCenters.append([centroids, sid])
else:
print "Not enough data yet across all sections!!!"
sys.exit()
oldCenterRd = f.lat.mean(), f.lon.mean()
tmp = []
offsetList = []
for i in laneCenters:
sel = f[f['sid'] == i[1]] # since its a pair centroids, sid
currCenter = sel.lat.mean(), sel.lon.mean()
dir = mod_geo.get_bearing(
mod_geo.Location(oldCenterRd[0], oldCenterRd[1]),
mod_geo.Location(currCenter[0], currCenter[1]))
dt = i[0].ravel()
for indx, irow in sel.iterrows():
offset = 0
if oldCenterRd is not None:
ndir = mod_geo.get_bearing(
mod_geo.Location(oldCenterRd[0], oldCenterRd[1]),
mod_geo.Location(irow.lat, irow.lon))
offset = mod_geo.distance(currCenter[0], currCenter[1], None,
irow.lat, irow.lon, None)
if ndir < dir:
offset = offset * (-1)
offsetList.append(offset)
for j in range(0, nlanes):
ll = dt[j * 2], dt[(j * 2) + 1]
dirPt = mod_geo.get_bearing(
mod_geo.Location(oldCenterRd[0], oldCenterRd[1]),
mod_geo.Location(ll[0], ll[1]))
dist = mod_geo.distance(ll[0], ll[1], None, currCenter[0],
currCenter[1], None)
direction = dirPt - dir
tmp.append({
'lat': ll[0],
'lon': ll[1],
'lane': direction,
'sid': sel.sid.unique()[0]
})
oldCenterRd = currCenter
f['offset'] = offsetList
#f.to_csv("offsets.csv",index=False)
k = pd.DataFrame(tmp)
k = k.sort_values(['sid'])
#k.to_csv(inFile.split('.')[0]+"__k.csv")
sids = k.sid.unique()
result = pd.DataFrame()
tmpDict = {}
for sid in sids:
sel = k[k['sid'] == sid]
sel = sel.sort_values(['lane'])
sel = sel.reset_index(drop=True)
prevLane = None
for i, r in sel.iterrows():
tmpDict['c' + str(i) + '_lat'] = r.lat
tmpDict['c' + str(i) + '_lon'] = r.lon
if prevLane is not None:
delta = mod_geo.distance(prevLane.lat, prevLane.lon, None,
r.lat, r.lon, None)
tmpDict['del_' + str(i - 1) + str(i)] = delta
prevLane = r
selDet = f[f['sid'] == sid]
tmpDict['_sid'] = sid
tmpDict['var'] = selDet.offset.var()
tmpDict['std'] = selDet.offset.std()
tmpDict['mean'] = np.abs(selDet).offset.mean()
result = result.append(tmpDict, ignore_index=True)
result.to_csv(outFile, index=False)
print "Written : " + outFile
return outFile
def compareCenter(baseCL, inpCL, outFileName):
base = pd.read_csv(baseCL)
inpd = pd.read_csv(inpCL)
op = pd.DataFrame()
cxWidthBaseLine = [30, 30]
oldR = None
for ii, ir in inpd.iterrows():
if oldR is not None:
midPt = mod_geo.Location((oldR.clat + ir.clat) / 2,
(oldR.clon + ir.clon) / 2)
direction = mod_geo.get_bearing(
mod_geo.Location(oldR.clat, oldR.clon),
mod_geo.Location(ir.clat, ir.clon))
lp, rp = mod_geo.point_from_distance_bearing(
midPt, cxWidthBaseLine[0],
direction - 90), mod_geo.point_from_distance_bearing(
midPt, cxWidthBaseLine[1], direction + 90)
A, B = Point(lp.latitude,
lp.longitude), Point(rp.latitude, rp.longitude)
C = None, None
for bi, br in base.iterrows():
D = Point(br.clat, br.clon)
if (C != (None, None)):
poi = intersectionPoint(A, B, C, D)
if poi != (None, None):
dirMid = mod_geo.get_bearing(
mod_geo.Location(oldR.clat, oldR.clon),
mod_geo.Location(midPt.latitude, midPt.longitude))
dirTgt = mod_geo.get_bearing(
mod_geo.Location(oldR.clat, oldR.clon),
mod_geo.Location(poi[0], poi[1]))
deltaDist = mod_geo.distance(midPt.latitude,
midPt.longitude, None,
poi[0], poi[1], None)
if ((dirMid < dirTgt) or (abs(dirMid - dirTgt) > 180)):
deltaDist = (-1) * deltaDist
rowData = {
'sid': ir.sid,
'deltaDist': deltaDist,
'blat': br.clat,
'blon': br.clon,
'tlat': ir.clat,
'tlon': ir.clon,
'llat': lp.latitude,
'llon': lp.longitude,
'rlat': rp.latitude,
'rlon': rp.longitude,
'mlat': midPt.latitude,
'mlon': midPt.longitude,
'plat': poi[0],
'plon': poi[1]
}
op = op.append(rowData, ignore_index=True)
C = D
oldR = ir
op.to_csv(outFileName)
print "Written : " + outFileName
plt.hist(op.deltaDist, bins=20)
plt.savefig("__" + outFileName.replace("csv", "jpg"))
plt.show()
return outFileName
def segTraceInt(segFile, traceFile, outFileName):
'''
segFile: segment file generated from segments
traceFile: input csv trace file from simulation
outFile: output file
generates points of intersection using segments from segFile and traces from traceFile
'''
print "segment and trace intersection"
cxInter = pd.DataFrame()
cxSeg2skip = 0 # data filtering
# thDist = 55 # 55m/s = 198 km/hr
thDir = 30 #degrees
startTime = time.time()
cx = pd.read_csv(segFile)
# geofence
#fence = [cx.llat.min(), cx.llon.min(), cx.rlat.max(), cx.rlon.max()]
# add fence
f = pd.read_csv(traceFile)
f = f[f['lat'] > fence[0]]
f = f[f['lat'] < fence[2]]
f = f[f['lon'] > fence[1]]
f = f[f['lon'] < fence[3]]
f = f[f['accuracy'] <= accThreashold]
f = f.reset_index(drop=True)
# careful to drop, might not required in case annotations are being used.
#f['annotation'] = f['annotation'].fillna('-')
#f = f.dropna()
print 'frames found\t: ', len(f)
# date filter
f['sts'] = pd.to_datetime(f['date'] + " " + f['hour'],
format="%d.%m.%Y %H:%M:%S:%f")
startDate = datetime.strptime('2016-08-01',
'%Y-%m-%d') # YYYY-MM-DD format
if outFileName[-5] == 'a':
endDate = datetime.strptime('2016-08-04', '%Y-%m-%d')
elif outFileName[-5] == 'b':
endDate = datetime.strptime('2016-08-08', '%Y-%m-%d')
elif outFileName[-5] == 'c':
endDate = datetime.strptime('2016-09-01', '%Y-%m-%d')
else: # default setting
endDate = datetime.strptime('2016-09-01', '%Y-%m-%d')
#endDate = datetime.strptime('2016-08-02', '%Y-%m-%d') # YYYY-MM-DD format
f = f.ix[(f['sts'] >= startDate) & (f['sts'] <= endDate)]
print 'frames filtered by date\t: ', len(f)
print 'Day(s) of data\t: ', len(f.date.unique())
f = f.sort_values(['vid', 'sts'])
f = f.reset_index(drop=True)
#f.to_csv(outFileName.split('.')[0] + "__r2_IntDropped.csv")
C = None, None
dirList = []
dir = None
for i, r in f.iterrows():
D = Point(r.lat, r.lon)
if (C != (None, None)):
dir = mod_geo.get_bearing(mod_geo.Location(C.x, C.y),
mod_geo.Location(D.x, D.y))
dirList.append(dir)
C = D
f['dir'] = dirList
#f.to_csv(outFileName.split('.')[0] + "__r2_IntBefore.csv")
### fast but risky options
### angular rounding check required
f = f.ix[(f['dir'] < cx.dir.max()) & (f['dir'] > cx.dir.min())]
print 'frames filtered by direction\t: ', len(f)
if len(f) == 0:
print "Nothing to process.. Exiting..."
sys.exit()
f = f.reset_index(drop=True)
### reduces the number of rows to process
### ends here
#f.to_csv(outFileName.split('.')[0] + "__r2_Int.csv")
print 'finding segment intersection points'
for i, r in cx.iterrows():
if i > cxSeg2skip:
A = Point(r.llat, r.llon)
B = Point(r.rlat, r.rlon)
midPt = Point((A.x + B.x) / 2, (A.y + B.y) / 2)
C = None, None
sys.stdout.write("\rcxSeg # %s%s%s ==> %d%%" %
(i + 1, '/', len(cx), (100 * (i + 1) / len(cx))))
sys.stdout.flush()
for vi, v in f.iterrows():
D = Point(v.lat, v.lon)
if (C != (None, None)):
#traceDir = mod_geo.get_bearing(mod_geo.Location(C.x, C.y), mod_geo.Location(D.x, D.y))
traceDir = v.dir
timediff = v.sts - prev.sts
if (timediff.days == 0 and timediff.seconds < timeThreshold
and v.vid == prev.vid):
sameTrace = True
else:
sameTrace = False
if (traceDir != None and sameTrace):
deltaDir = abs(angleDiff(traceDir, r.dir))
if (deltaDir < thDir):
poi = intersectionPoint(A, B, C, D)
if (poi != (None, None)):
cxInter = cxInter.append(
{
'sid': r.sid,
'vid': v.vid,
'lat': poi[0],
'lon': poi[1],
'lanes': 2,
'accuracy':
(prev.accuracy + v.accuracy) / 2,
'nos': (prev.nos + v.nos) / 2
},
ignore_index=True)
C = None, None
C = D
prev = v
# custom outfilenames
#outFileName = outFileName.split('.')[0] + '_' + str(startDate.month) + str(startDate.day) + "-" + str(endDate.month) + str(endDate.day) + ".csv"
cxInter.to_csv(outFileName)
print "\nIntersection segments saved in " + outFileName
endTime = time.time()
print "Completed in : " + str(endTime - startTime) + " seconds"
return outFileName
def segments(pathToCSV, outFileName):
'''
takes simulation converted csv
finds and writes crossSections into csv
'''
print "generating segments"
maxDist = 50 # meters
f = pd.read_csv(pathToCSV)
f['sts'] = pd.to_datetime(f.sts)
f = f.sort_values(['vid', 'sts'])
f = f.reset_index(drop=True) # to reindex the sorted values]
f = f[f['lat'] > fence[0]]
f = f[f['lat'] < fence[2]]
f = f[f['lon'] > fence[1]]
f = f[f['lon'] < fence[3]]
# fence attached
f = f.reset_index(drop=True)
flen = len(f)
traces = []
traceVal = 0
prevRow = None
print "\nassigning trip ids\n"
for i, r in f.iterrows():
sys.stdout.write("\r%d of %d %d%%" % (i, flen, ((i + 1) * 100 / flen)))
sys.stdout.flush()
if prevRow is not None:
if (prevRow.vid == r.vid and not np.isnan(r.vid)):
diff = r.sts - prevRow.sts
if (diff.days != 0 or diff.seconds > timeThreshold):
traceVal = traceVal + 1
elif (np.isnan(r.vid)):
traces.append(-1)
else:
traceVal = traceVal + 1
if (not np.isnan(r.vid)):
traces.append(traceVal)
else:
traces.append(traceVal)
prevRow = r
print '\n'
f['tripID'] = traces
#f = f.dropna()
f.to_csv("int.csv", index=False)
tr = (f.tripID.unique()).tolist()
try:
tr.remove(-1)
except ValueError:
"All valid traces"
# use 0 for RU to DA
# use 5 for DA to RU
initVidTrace = f[f['tripID'] == 0] #random.choice(tr)]
oldPt = None
cx = pd.DataFrame()
for i, r in initVidTrace.iterrows():
if oldPt is not None:
direction = mod_geo.get_bearing(
mod_geo.Location(oldPt.lat, oldPt.lon),
mod_geo.Location(r.lat, r.lon))
if (direction != None):
if ((r.lat > fence[0]) and (r.lat < fence[2])
and (r.lon > fence[1]) and (r.lon < fence[3])):
dist = mod_geo.distance(oldPt.lat, oldPt.lon, None, r.lat,
r.lon, None)
if dist > maxDist:
for t in range(0, int(dist / maxDist) + 1):
midPt = mod_geo.point_from_distance_bearing(
mod_geo.Location(oldPt.lat, oldPt.lon),
maxDist * t, direction)
lp, rp = mod_geo.point_from_distance_bearing(
midPt, cxWidthBaseLine[0], direction +
90), mod_geo.point_from_distance_bearing(
midPt, cxWidthBaseLine[1], direction - 90)
cx = cx.append(
{
'llat': lp.latitude,
'llon': lp.longitude,
'rlat': rp.latitude,
'rlon': rp.longitude,
'dir': direction,
'sid': len(cx)
},
ignore_index=True)
else:
midPt = [
(oldPt.lat + r.lat) / 2, (oldPt.lon + r.lon) / 2
] #simple cartesian midpoint
lp, rp = mod_geo.point_from_distance_bearing(
mod_geo.Location(midPt[0], midPt[1]),
cxWidthBaseLine[0], direction +
90), mod_geo.point_from_distance_bearing(
mod_geo.Location(midPt[0], midPt[1]),
cxWidthBaseLine[1], direction - 90)
cx = cx.append(
{
'llat': lp.latitude,
'llon': lp.longitude,
'rlat': rp.latitude,
'rlon': rp.longitude,
'dir': direction,
'sid': len(cx)
},
ignore_index=True)
oldPt = r
cx.to_csv(outFileName)
print "written : " + outFileName
return outFileName
def samplingCX():
'''
uses crossSection.gpx to find intersection with traces
writes to WP.gpx
and gpxwpt.csv
'''
# prepare crossSection file
gpx_file = open('crossSection.gpx', "r")
gpx = gpxpy.parse(gpx_file)
# prepare cxList for cross sections
cxSegTuple = []
for track in gpx.tracks:
for seg in track.segments:
cxList = []
for pt in seg.points:
cxList.append(gpxPtDS(pt.latitude, pt.longitude))
cxSegTuple.append(cxList) # set of two gpxPtDS
gpx_file.close()
# prepare datastructure
txTraces = []
gpx_file = open('..\..\samples\A67.gpx', "r")
gpx = gpxpy.parse(gpx_file)
for track in gpx.tracks:
for seg in track.segments:
txPt = []
prev = None
for pt in seg.points:
if (prev == None):
txPt.append(gpxPtDS(pt.latitude, pt.longitude))
else:
txPt.append(
gpxPtDS(pt.latitude, pt.longitude,
mod_geo.get_bearing(prev, pt)))
prev = pt
tmp = gpxTraceDS(txPt)
txTraces.append(tmp)
# find points and write
gpxOpTmp = gpxpy.gpx.GPX()
# prepare the gpx wpt
# and a csv for the same
wptcsv = open('gpxwpt.csv', 'w')
print >> wptcsv, "segID,lat,lon"
for i, cxp in enumerate(cxSegTuple):
# below are 2 points of cx line segment
A = Point(cxp[0].lat, cxp[0].lon)
B = Point(cxp[1].lat, cxp[1].lon)
for gpxTrace in txTraces:
C = None
for gpxSegment in gpxTrace.trace:
D = Point(gpxSegment.lat, gpxSegment.lon)
if (C != None):
x, y = intersectionPoint(A, B, C, D)
if ((x != None) and (y != None)):
print >> wptcsv, str(i) + ',' + str(x) + ',' + str(y)
gpxwp = gpxpy.gpx.GPXWaypoint(x,
y,
description="cxSeg_" +
str(i))
gpxOpTmp.waypoints.append(gpxwp)
C = D
wptcsv.close()
outfile = open('WP.gpx', 'w')
outfile.write(gpxOpTmp.to_xml())
outfile.close()