def main():
""" Extracts latitude and longitude from the JSON feed, converts the list of dictionaries to a dataframe and then plot the coordinates via GeoPlotLib """
url = "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/1.0_month.geojson"
json_obj = get_json(url)
entire_report_dictionary = json_loads_to_dictionary(json_obj)
number_of_records, id_lon_lat = extract_records(entire_report_dictionary)[
0], extract_records(entire_report_dictionary)[1]
print("writing to file\n")
with open('id_coordinates.csv', 'wt') as textiowrapper:
textiowrapper.writelines('name,lon,lat\n')
for i in range(number_of_records):
x = 0
id_num = str(id_lon_lat[i][x])
lon = str(id_lon_lat[i][x + 1])
lat = str(id_lon_lat[i][x + 2])
s = id_num + ',' + lon + ',' + lat
textiowrapper.writelines(s + '\n')
del x
textiowrapper.close()
print("done writing to file\n")
print("mapping the data\n")
data = read_csv('id_coordinates.csv')
geoplotlib.dot(data)
geoplotlib.show()
def Make_Map(green_data, zips):
sizes = []
for tup in green_data.values():
sizes.append(tup[0])
max_size = max(sizes)
colors = []
for tup in green_data.values():
colors.append(tup[1])
max_color = max(colors)
for element in green_data.keys():
if element in zips.keys():
#create the data to make a dot for
data = {'zip':zips[element][0], 'lat': [(zips[element][1])], 'lon': [(zips[element][2])], \
'color': [int(255*(green_data[element][1]/max_color)), 255, int(255*(green_data[element][1]/max_color))], \
'size':50*(int(green_data[element][0])/max_size)}
#add the dot for the zipcode
geoplotlib.add_layer(dd(data, data['color'], data['size'], f_tooltip=None))
#add labels for zipcode
geoplotlib.labels(data, 'zip' , color='k', font_name= 'helvetica', \
font_size=8, anchor_x='left', anchor_y='top')
geoplotlib.show()
def getHistogramOfMatches(self):
#self.updateLocationDataFile()
data = read_csv(self.location_data)
print(data)
geoplotlib.hist(data, colorscale='sqrt', binsize=8)
geoplotlib.show()
def getHeatmapOfMatches(self):
#self.updateLocationDataFile()
data = read_csv(self.location_data)
print(data)
geoplotlib.kde(data, bw=[5, 5])
geoplotlib.show()
def getDelaunayTriangulation(self):
#self.updateLocationDataFile()
data = read_csv(self.location_data)
print(data)
geoplotlib.delaunay(data, cmap='hot_r')
geoplotlib.show()
def plot(graph, tag_to_color, directed=True):
color_to_nodes_data = defaultdict(list)
color_to_nodes_pois = defaultdict(list)
plot_edges = list()
for node in graph.nodes:
node_info = {'lon': node.coordinates[1], 'lat': node.coordinates[0]}
color = (0, 0, 0)
if len(node.tags):
if node.tags[0] in tag_to_color:
color = tag_to_color[node.tags[0]]
else:
continue
if node.data_node:
color_to_nodes_data[color].append(node_info)
else:
color_to_nodes_pois[color].append(node_info)
neighbors = node.successors
if not directed:
neighbors = neighbors.union(node.predecessors)
for successor in neighbors:
#if node.coordinates[1] == successor.coordinates[1] and node.coordinates[0] == successor.coordinates[0]:
# print(node)
# print(successor)
plot_edges.append({
'start_lon': node.coordinates[1],
'end_lon': successor.coordinates[1],
'start_lat': node.coordinates[0],
'end_lat': successor.coordinates[0]
})
df_edges = pd.DataFrame(plot_edges)
'''
if not df_edges.empty:
geoplotlib.graph(df_edges,
src_lat='start_lat',
src_lon='start_lon',
dest_lat='end_lat',
dest_lon='end_lon',
color='Dark2',
alpha=30,
linewidth=3)
'''
for color, nodes_list in color_to_nodes_pois.items():
nodes_df = pd.DataFrame(nodes_list)
color = list(color)
color.append(255)
geoplotlib.dot(nodes_df, color=color)
for color, nodes_list in color_to_nodes_data.items():
nodes_df = pd.DataFrame(nodes_list)
color = list(color)
color.append(255)
geoplotlib.dot(nodes_df, color=color)
geoplotlib.show()
def DistanceVisual(lat1, lon1, venue, distance):
locs = pd.DataFrame({
'name':
['University of Michigan', venue + " " + str(distance) + " km"],
'lat': [42.2780, lat1],
'lon': [-83.7382, lon1]
})
geoplotlib.dot(locs,
color='b',
point_size=20,
f_tooltip=lambda r: r['name'])
geoplotlib.show()
def draw_crashes_points(cards, filtred = True):
if filtred:
latitude, longitude = ('lat', 'lon')
else:
latitude, longitude = ('latitude', 'longitude')
points = {'lon':[], 'lat':[]}
for lat, lon in zip(cards[latitude], cards[longitude]):
points['lon'].append(float(lon))
points['lat'].append(float(lat))
geoplotlib.dot(points, point_size=2, color='green')
geoplotlib.show()
def draw_grid(nodes, unfiltered=None):
"""
Draw grid using computed nodes.
Args:
nodes (numpy.ndarray): Data points to plot
unfiltered (numpy.ndarray): Unfiltered data points. If not None,
plot using different color.
"""
# Layer for plotting the nodes
class PointsLayer(BaseLayer):
def __init__(self, data, color, point_size):
self.data = data
self.color = color
self.point_size = point_size
def invalidate(self, proj):
x, y = proj.lonlat_to_screen(self.data['lon'], self.data['lat'])
self.painter = BatchPainter()
self.painter.set_color(self.color)
self.painter.points(x, y, point_size=self.point_size, rounded=True)
def draw(self, proj, mouse_x, mouse_y, ui_manager):
self.painter.batch_draw()
# Get grid node data into dict format.
data_grid = {'lat': nodes[:, 0], 'lon': nodes[:, 1]}
# If unfiltered nodes specified, get data into dict format.
if unfiltered is not None:
data_unfiltered = {'lat': unfiltered[:, 0], 'lon': unfiltered[:, 1]}
# If unfiltered nodes specified, plot on layer.
if unfiltered is not None:
geoplotlib.add_layer(
PointsLayer(data_unfiltered, color=[255, 0, 0], point_size=4))
# Plot grid nodes.
geoplotlib.add_layer(
PointsLayer(data_grid, color=[0, 0, 255], point_size=7))
# Set bounding box and show.
geoplotlib.set_bbox(
BoundingBox(north=40.897994,
west=-73.199040,
south=40.595581,
east=-74.55040))
geoplotlib.show()
def visualize_heatmap_for_data(self, df):
"""
Normally visualize accidents distributions across borough
:param df: Dataset
:return: None
"""
geo_data_for_plotting = {"lat": df["LATITUDE"], "lon": df["LONGITUDE"]}
geoplotlib.kde(geo_data_for_plotting, 1)
east = max(df["LONGITUDE"])
west = min(df["LONGITUDE"])
south = max(df["LATITUDE"])
north = min(df["LATITUDE"])
bbox = BoundingBox(north=north, west=west, south=south, east=east)
geoplotlib.set_bbox(bbox)
geoplotlib.tiles_provider('toner-lite')
geoplotlib.show()
def doKMeans(df):
#
# INFO: Plot data with a '.' marker, with 0.3 alpha at the Longitude,
# and Latitude locations in your dataset. Longitude = x, Latitude = y
fig = plt.figure()
ax = fig.add_subplot(111)
ax.scatter(df.lon, df.lat, marker='.', alpha=0.1)
#
# : Filter df so that you're only looking at Longitude and Latitude,
# since the remaining columns aren't really applicable for this purpose.
#
sliceK = df[['lon', 'lat']]
#
# : Use K-Means to try and find seven cluster centers in this df.
#
#model = KMeans(n_clusters=10, n_init=10, init='k-means++')
model = DBSCAN(eps=0.5,
min_samples=5,
metric="euclidean",
metric_params=None,
algorithm="auto",
leaf_size=30,
p=None,
n_jobs=1)
model.fit(sliceK)
#
# INFO: Print and plot the centroids...
centroids = model.cluster_centers_
try:
geoplotlib.dot(df, color='red', point_size=0.2)
except:
print("Exception")
geoplotlib.show()
ax.scatter(centroids[:, 0],
centroids[:, 1],
marker='x',
c='red',
alpha=0.5,
linewidths=3,
s=169)
print(centroids)
def test_graph():
import geoplotlib
from geoplotlib.utils import read_csv
movement_data = read_csv('./data/graph_movement.csv')
geoplotlib.graph(movement_data,
src_lat='SourceLat',
src_lon='SourceLon',
dest_lat='TargetLat',
dest_lon='TargetLon',
alpha=80,
linewidth=2,
color='inferno',
color_by='Weight',
levels=10)
geoplotlib.show()
def __init__(self, year, grade):
self.scale = 18
self.start = 18
self.year = year
self.grade = grade
cur.execute(
'select date, state, county, {} from counties where date like "%{}%"'
.format(self.grade, self.year))
print("connected")
self.counties = cur.fetchall()
with open('GEOIDs.txt', 'r') as f:
reader = csv.reader(f)
csv_list = list(reader)
self.test = []
for i in self.counties:
for x in csv_list:
if i[1] == x[0] and (i[2] in x[3]):
geoid = x[1] + x[2]
try:
self.test.append([geoid, float(i[3])])
except TypeError:
self.test.append([geoid, 0])
self.test.sort(key=lambda j: float(j[1]))
self.ranger(self.test)
self.unemployment = {t[0]: t[1] for t in self.test}
print('starting map')
self.cmap = ColorMap('plasma', alpha=255, levels=10)
geoplotlib.geojson(
'data/gz_2010_us_050_00_20m.json',
fill=True,
color=self.get_color,
f_tooltip=(lambda properties: properties['NAME'] + ' ' + str(
self.unemployment.get(
str(properties['STATE']) + properties['COUNTY']))))
geoplotlib.geojson('data/gz_2010_us_050_00_20m.json',
fill=False,
color=[255, 255, 255, 64])
geoplotlib.set_bbox(BoundingBox.USA)
geoplotlib.show()
def _draw_hot(day, hour, minute):
"""
geoplotlib热力图
:param day:
:param hour, minute:
:param tp:
:return:
"""
data = da.loc_state(day, hour, minute)
bbox1 = BoundingBox(north=32, south=30.7, west=122.2, east=120.8)
gp.set_bbox(bbox1)
# gp.shapefiles('F:\\road_datas\\ShangHai\\boundary', shape_type='empty')
gp.kde(data, bw=[0.5, 0.5], cmap='jet', scaling='wjk')
gp.savefig('001')
gp.show()
import geoplotlib
from geoplotlib.utils import read_csv
import pandas as pd
df = pd.read_csv('directory.csv')
lat = df.lat
lon = df.lon
geoplotlib.dot(lat[0], lon[0])
geoplotlib.show()
print lat[0]
print lon[0]
#!/usr/bin/env python2
import geoplotlib
from geoplotlib.utils import read_csv
data = read_csv('ui_network_density.csv')
geoplotlib.dot(data)
geoplotlib.show()
def plotTwoGroups(coords1, coords2):
geoplotlib.dot(coords1, color=(255, 0, 0, 255))
geoplotlib.dot(coords2, color=(0, 255, 0, 255))
geoplotlib.show()
def s_meanshif(filepath,labelpath="../../data/label.csv", label_despath="../../data/label_des.csv"):
#datas = deal_des(filepath)
#提取目的地坐标
#des = []
#for it in datas:
# des.append(it[1])
#从des文件中读取目的地信息
des = []
tripid = []
file = open("../../data/des.csv","r")
for line in file:
try:
if len(line) > 1:
data = line.strip("\n").split(" ")
x,y = float(data[1]),float(data[2])
tripid.append(data[0])
des.append([x, y])
except:
#print line
pass
print len(des),len(tripid)
#将list转换为numpy的矩阵格式
des = np.array(des)
# The following bandwidth can be automatically detected using
#得到meanshift所需的bandwidth
bandwidth = estimate_bandwidth(des, quantile=0.2, n_samples=100000)
#print bandwidth
bandwidth = 0.008
#得到meanShift模型并进行训练
ms = MeanShift(bandwidth=bandwidth, bin_seeding=True, min_bin_freq=5)
ms.fit(des)
#得到训练的标签以及类别中心点坐标
labels = ms.labels_
cluster_centers = ms.cluster_centers_
print "样本个数:",len(labels)
#存储每个类别对应的中心坐标
out = open(labelpath,"w")
i = 0
ress = []
for cluster_center in cluster_centers:
#print cluster_center
out.write(str(i)+" "+str(cluster_center[0])+" "+str(cluster_center[1])+"\n")
i += 1
out.close()
#存储目的地对应的类别
label_des = open(label_despath, "w")
i = 0
for label in labels:
#print tripid[i],label
label_des.write(str(tripid[i])+" "+str(label)+" "+str(cluster_centers[int(label)][0])+" "+str(cluster_centers[int(label)][1])+"\n")
i += 1
label_des.close()
#print ress
labels_unique = np.unique(labels)
n_clusters_ = len(labels_unique)
print 'cluster num:',n_clusters_
#对聚类效果进行可视化
geo_data = {'lat':[],'lon':[]}
for xy in cluster_centers:
x, y = xy[0],xy[1]
geo_data['lon'].append(x)
geo_data['lat'].append(y)
#print geo_data
geoplotlib.dot(geo_data)
geoplotlib.show()
def draw_geo():
data = geoplotlib.utils.read_csv('../data/des.csv')
geoplotlib.add_layer(KMeansLayer(data))
geoplotlib.set_smoothing(True)
geoplotlib.show()
def show_map(self):
self.load_points()
gp.show()
def show_geoplot(results, mbc): data=DataAccessObject.from_dataframe(results[["lat","lon"]]) gpl.hist(data, colorscale='sqrt', binsize=4) gpl.kde(data, bw=5, cut_below=1e-3) gpl.set_bbox(BoundingBox(mbc[0],mbc[1],mbc[2],mbc[3])) gpl.show()
geoPoltData = wifi[["lat_w", "lon_w"]].rename(columns={
'lat_w': 'lat',
'lon_w': 'lon'
},
inplace=False)
gp.dot(geoPoltData, point_size=plotPointSize, color=wifiColor)
#Crime plot
geoPoltData = NYPD_filter[["lat_c", "lon_c"]].rename(columns={
'lat_c': 'lat',
'lon_c': 'lon'
},
inplace=False)
gp.dot(geoPoltData, point_size=plotPointSize, color=crimeColor)
gp.show()
#2. Only streetlights, wifi, and violent crime locations (no differentiation between night/day) - felonies
gp.clear()
plotPointSize = 2
gp.set_window_size(800, 800)
gp.tiles_provider('darkmatter')
#Street light plot
geoPoltData = streetlight[["lat_s", "lon_s"]].rename(columns={
'lat_s': 'lat',
'lon_s': 'lon'
},
inplace=False)
