def cluster(point):
global epsilon
p = getObjPoint(point)
closeBy = regionQuery(p, epsilon)
if len(closeBy) == 0:
sql = "INSERT INTO landmarks (position,centCnt,sumLat,sumLon) VALUES (POINT(%s, %s), %s, %s, %s)"
vals = [p.lat, p.lon, 1, p.lat, p.lon]
print 'Beginning new cluster', vals
connect.execute(sql, vals)
return
minP = None
minDist = 10000
for dist, point in [(fDist(p, P), P) for P in closeBy]:
if dist < minDist:
print dist
minP = point
minDist = dist
print "Minimum:", minDist, minP, minP.ID
rows = connect.getRows("landmarks",['centCnt','sumLat','sumLon'], 'id=' + str(minP.ID))
row = rows[0]
cnt = row[0] + 1
sumX = row[1] + p.lat
sumY = row[2] + p.lon
p.lat = sumX/cnt
p.lon = sumY/cnt
sql = "UPDATE landmarks SET position=POINT(%s, %s),centCnt=%s,sumLat=%s,sumLon=%s"
where = " WHERE id=" + str(minP.ID)
vals = [p.lat, p.lon, cnt, sumX, sumY]
connect.execute(sql + where, vals)
print 'Added to cluster ' + str(minP.ID), vals
def mark(point):
point.vis = True
connect.execute("UPDATE pictures SET visited=True WHERE id=%s", [point.ID])
def addpicture():
query = 'INSERT INTO `pictures` (`position`, `bearing`, `focus`) VALUES (GeometryFromText(%s), %s, %s);'
vals = ('POINT(' + request.form['lat'] + ' ' + request.form['lng'] + ')', request.form['bearing'], request.form['focus'])
connect.execute(query, vals)
return render_template('common/picture_response.html')
