氣輕PyQt5 43 QChart餅狀圖(QPieSeries)
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from PyQt5 import QtGui
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtChart import QPieSlice, QChart, QChartView, QPieSeries
import numpy as np
import sys
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class PyQt543(QMainWindow):
??? def __init__(self):
??????? super().__init__()
??????? self.initUI()
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??? def initUI(self):
??????? self.setWindowTitle("chart")
??????? self.resize(600, 400)?????????????????????????? # 設(shè)置窗口大小
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??????? cityName = ['北京', '天津', '上海', '南京', '杭州',
??????????????????? '青島', '廣州', '深圳', '重慶', '成都']
??????? color??? = ['#6495ED', '#548B54', '#483D8B', '#00FF7F', '#7B68EE',
??????????????????? '#00CD66', '#556B2F', '#EEDC82', '#FFD700', '#CD950C']
??????? gdpData? = np.array([30319.98, 18809.64, 32679.87, 12820.4, 13509.15,
??????????????????? 12001.52, 22859.35, 24221.98, 20363.19, 15342.77])
??????? proportion = np.array( gdpData * 100 / gdpData.sum(),dtype=int )
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??????? chart = QChart()???????? ???????????????????????# 圖表組件
??????? chart.setTitle('GDP餅狀圖')
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??????? series = QPieSeries()?????????????????????????? # 餅狀圖
??????? for i, value in enumerate(gdpData):???????????? # 添加數(shù)據(jù)
??????????? series.append(cityName[i], proportion[i])
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??????? slice = QPieSlice()???????????????????????????? # 餅狀圖中的切片
??????? for i, city in enumerate(cityName):
??????????? slice = series.slices()[i]
??????????? slice.setLabelVisible(True)???????????????? # 切片標(biāo)簽可視
??????????? slice.setLabel("{} {:.1f}%".format(city,100 * slice.percentage()))
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??????????? slice.setBrush(QtGui.QColor(color[i]))
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??????? chart.legend().hide()
??????? chart.addSeries(series)???????????????????????? # 添加Series
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??????? chartView = QChartView()??????????????????????? # 視圖組件
??????? chartView.setChart(chart)?????????????????????? # 顯示chart
???????
??????? self.setCentralWidget(chartView)
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??????? self.show()
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if __name__ == '__main__':
??? app = QApplication(sys.argv)
??? window = PyQt543()
??? sys.exit(app.exec())
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執(zhí)行結(jié)果
