79 lines
2 KiB
Python
79 lines
2 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2019/10/2
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@author: Irony
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@site: https://pyqt5.com , https://github.com/892768447
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@email: 892768447@qq.com
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@file: ScatterChart
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@description: 散点图表
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"""
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import random
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from PyQt5.QtChart import QChartView, QChart, QScatterSeries
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from PyQt5.QtCore import QPointF
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from PyQt5.QtGui import QPainter
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class Window(QChartView):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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self.resize(400, 300)
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# 抗锯齿
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self.setRenderHint(QPainter.Antialiasing)
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# 生成模拟数据
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self.m_dataTable = self.generateRandomData(3, 10, 7)
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# 图表
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chart = QChart()
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self.setChart(chart)
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# 设置标题
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chart.setTitle('Scatter chart')
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# 添加Series
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self.getSeries(chart)
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# 创建默认xy轴
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chart.createDefaultAxes()
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chart.legend().setVisible(False)
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def getSeries(self, chart):
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for i, data_list in enumerate(self.m_dataTable):
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series = QScatterSeries(chart)
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for value, _ in data_list:
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series.append(value)
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series.setName('Series ' + str(i))
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chart.addSeries(series)
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def generateRandomData(self, listCount, valueMax, valueCount):
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# 生成模拟随机数据
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random.seed()
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dataTable = []
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for i in range(listCount):
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dataList = []
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yValue = 0.0
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f_valueCount = float(valueCount)
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for j in range(valueCount):
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yValue += random.uniform(0, valueMax) / f_valueCount
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value = QPointF(j + random.random() * valueMax / f_valueCount, yValue)
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label = 'Slice ' + str(i) + ':' + str(j)
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dataList.append((value, label))
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dataTable.append(dataList)
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return dataTable
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if __name__ == '__main__':
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import sys
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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