我之前已经问过以下问题，但是我很难尝试实现我的代码中提供的示例，以便在'callout'或'Annotation'中获取标签，因此文本不会重叠。我希望有人能够帮助我。这是我之前的问题。 Python PieChart (is it possible to do CallOut labels)
到目前为止，这是我的代码：
from collections import Counter
import numpy as np
import matplotlib
import matplotlib.pyplot as plt
import pandas as pd
import sqlite3
import os
#Connect to Database
mypath = os.path.abspath(__file__)
conn =sqlite3.connect('C:\inetpub\wwwroot\db\DeviceRegister.sqlite3')
#Connect to the sqlite3 database
cursor = conn.cursor() # Set cursor as the cursor for plus.sqlite
#SQL Query
df = pd.read_sql_query("SELECT devices.id AS id, macs.address AS mac, oses.name AS os, browsers.name AS browser FROM devices JOIN macs ON devices.mac = macs.id JOIN oses ON devices.os = oses.id JOIN browsers ON devices.browser = browsers.id", conn)
df_browsers = df.drop_duplicates(subset=['mac','browser'])
#Get Data
counterbrowsers = Counter(df_browsers['browser'])
browser_names = counterbrowsers.keys()
browser_counts = counterbrowsers.values()
#Pie Chart
plt.figure(figsize=plt.figaspect(0.3))
labels, values = zip(*sorted(counterbrowsers.items(), key=lambda x: x[1])) #Counteros is the Dictionary-like object we are trying to sort.
This 'zip' solves the problem of sorting each of them independently.
This
will sort as pairs, by value.
labels = ['{0} : {1:1}'.format(i,j) for i,j in zip(labels, values)]
colors = ['yellowgreen', 'gold', 'lightskyblue', 'lightcoral','#008DB8','#00AAAA','#001CF0','#00FF80','c','m','r','b','#1970','#0038E2','#0055D4','#0071C6','#00E28E', '#00C69C']
explode = list()
for k in labels:
explode.append(0.1)
def make_autopct(values):
def my_autopct(pct):
total = sum(values)
val=int(round(pct*total/100))
return '{p:.0f}% ({v:d})'.format(p=pct,v=val)
return my_autopct
pie = plt.pie(values, labels=labels, explode=explode, colors=colors, shadow=True, startangle=90, autopct=make_autopct(values))
plt.suptitle('Browsers Analytics', bbox={'facecolor':'0.8', 'pad':7})
plt.legend(labels, loc="lower right")
plt.axis('equal') # Set aspect ratio to be equal so that pie is drawn as a circle, # View the plot drop above
plt.savefig(mypath + 'piebrowsers.png')
答案 0 :(得分：0)
使用plt.legend(loc='location you want it to appear')
即。 plt.legend(loc='upper left')
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