Labeled and interactive maps in Python

# Load libraries import numpy as np import pandas as pd import matplotlib.pyplot as plt plt.style.use('ggplot') #plt.style.use('fivethirtyeight') import seaborn as sns #sns.set_style('darkgrid') #sns.set_style('whitegrid') #sns.set_style('white') import geopandas as gpd import plotly.express as px import pyproj

# Import a .zip file containing spatial files and data #! wget http://www2.census.gov/geo/tiger/GENZ2015/shp/cb_2015_us_county_20m.zip #! unzip cb_2015_us_county_20m.zip

c = gpd.read_file("http://www2.census.gov/geo/tiger/GENZ2015/shp/cb_2015_us_county_20m.zip") #c = gpd.read_file("cb_2015_us_county_20m.shp") c = c.loc[c['GEOID'].isin(['26161','26093','26049','26091','26075','26125','26163','26099','26115','26065'])] c['awl'] = c['AWATER']/c['ALAND']

c

c.plot('awl');

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

c['coords'] = c['geometry'].apply(lambda x: x.representative_point().coords[:]) c['coords'] = [coords[0] for coords in c['coords']]

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) texts =[ax.text(row.coords[0], row.coords[1], s=row["NAME"], horizontalalignment='center') for idx, row in c.iterrows()] plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) texts =[ax.text(row.coords[0], row.coords[1], s=row["NAME"], horizontalalignment='center', bbox={'facecolor': 'white', 'alpha':0.8, 'pad': 2, 'edgecolor':'none'}) for idx, row in c.iterrows()] plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

# Replace/elimante the following names c['NameSelected'] = c['NAME'] c['NameSelected'] = c['NameSelected'].str.replace('Livingston','') c['NameSelected'] = c['NameSelected'].str.replace('Jackson','') c['NameSelected'] = c['NameSelected'].str.replace('Genesee','') c['NameSelected'] = c['NameSelected'].str.replace('Oakland','') c

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) texts =[ax.text(row.coords[0], row.coords[1], s=row["NameSelected"], horizontalalignment='center', bbox={'facecolor': 'white', 'alpha':0.8, 'pad': 2, 'edgecolor':'none'}) for idx, row in c.iterrows()] plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

# Create dataframe of selected regions selected_regions = ['Livingston', 'Jackson', 'Genesee', 'Oakland'] c_selected = c.loc[c['NAME'].isin(selected_regions)] c_selected = c_selected[['GEOID', 'NAME']] c_selected['Selected_Name'] = c_selected['NAME'] c_selected.drop('NAME', axis = 1, inplace = True) c_selected

c = c.merge(c_selected, on='GEOID', how='left')

c['Selected_Name'] = c['Selected_Name'].fillna('') c

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) texts =[ax.text(row.coords[0], row.coords[1], s=row["Selected_Name"], horizontalalignment='center', bbox={'facecolor': 'white', 'alpha':0.8, 'pad': 2, 'edgecolor':'none'}) for idx, row in c.iterrows()] plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

# Install the adjustText package #!pip install https://github.com/Phlya/adjustText/archive/master.zip # Ref: https://github.com/Phlya/adjustText/blob/master/docs/source/Examples.ipynb

from adjustText import adjust_text

c.reset_index(level=0, inplace=True) c

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) texts =[ax.text(row.coords[0], row.coords[1], s=row["NAME"], horizontalalignment='center', bbox={'facecolor': 'white', 'alpha':0.8, 'pad': 2, 'edgecolor':'none'}) for idx, row in c.iterrows()] adjust_text(texts, ax=ax) plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

fig, ax = plt.subplots(figsize=(6,4)) c.plot(column="awl", scheme='NaturalBreaks', k=5, cmap='coolwarm', legend=True, ax=ax, legend_kwds={'bbox_to_anchor':(1.45, 0.37)}) texts =[ax.text(row.coords[0], row.coords[1], s=row["NAME"], bbox={'facecolor': 'white', 'alpha':0.8, 'pad': 2, 'edgecolor':'none'}) for idx, row in c.iterrows()] adjust_text(texts, ax=ax) plt.title('Spatial distribution of awl \n ') plt.tight_layout() #ax.axis("off") #plt.savefig('myMap.png',dpi=150, bbox_inches='tight') plt.show()

fig = px.choropleth(c, geojson=c.geometry, locations=c.index, color="awl") fig.update_geos(fitbounds="locations", visible=False) fig.show()

c.set_index("NAME", inplace=True)

fig = px.choropleth(c, geojson=c.geometry, locations=c.index, projection="mercator", color="awl") fig.update_geos(fitbounds="locations", visible=False) fig.show()

c.explore()

c.explore(column='awl')

c.explore( column='awl', tooltip=['NAME', 'AWATER', 'ALAND'], scheme='naturalbreaks', cmap='Spectral', legend=True, tiles='Stamen Terrain', style_kwds =dict(color="gray", weight=0.5), legend_kwds=dict(colorbar=False) )