python 使用 qcustomplot 首先安装qcustomplot2

''' @Description: 测试公司软件模板 @Author: JYS @EMAIL: 18010181191@163.COM @Date: 2020-04-21 16:43:21 @LastEditors: JYS @LastEditTime: 2020-07-08 18:29:39 ''' import math import threading import time from PyQt5.QtCore import QTimer, QMargins, QPointF, QPoint, QDateTime from PyQt5.QtWidgets import QApplication, QMainWindow, QToolTip from PyQt5.QtGui import QBrush, QPen, QFont, QColor, QCursor, QPixmap from PyQt5.QtCore import Qt from ui.Ui_mainwindow import Ui_MainWindow as ui from QCustomPlot2 import QCustomPlot, QCPAxisTickerText, QCPAxisTickerDateTime, QCPScatterStyle, QCPTextElement, QCPLegend, QCPItemText, QCPItemPosition, QCPItemCurve, QCPLineEnding, QCPItemTracer, QCP class MainWindow(QMainWindow, ui): def __init__(self, parent=None): super(MainWindow, self).__init__(parent) self.setupUi(self) # 初始化一个定时器 self.timer = QTimer(self) # 定义时间超时连接start_app self.timer.timeout.connect(self.upadta_ui) # 定义时间任务是一次性任务 # self.timer.setSingleShot(True) # 启动时间任务 self.timer.start(100) self.init_ui() self.init_connect() self.init_data() def init_ui(self): """ 初始化界面 :return: """ # QIntValidator 整数 QDoubleValidator 浮点数显示 (最小值，最大值) self.setWindowTitle("曲线测试") self.init_chart() def init_connect(self): """ 初始化事件连接 :return: """ self.start.clicked.connect(self.moni_collect) # self.btn_readdi.clicked.connect(self.ui_read_Di) self.chart1.mouseMove.connect(self.chart_mousemove) self.chart2.mouseMove.connect(self.chart_mousemove) self.chart3.mouseMove.connect(self.chart_mousemove) self.chart4.mouseMove.connect(self.chart_mousemove) def init_data(self): """ 初始化数据 """ self.x_data = [] self.y_data = [] self.y_data2 = [] self.time_data = [] def init_chart(self): """ 初始化曲线 :return: """ self.inin_chart1() self.init_chart2() self.init_chart3() self.init_chart4() def inin_chart1(self): """ 初始化曲线1 :return: """ # 增加曲线 graph0 = self.chart1.addGraph() graph1 = self.chart1.addGraph() x, y0, y1 = [], [], [] for i in range(251): x.append(i) y0.append(math.exp(-i / 150.0) * math.cos(i / 10.0)) y1.append(math.exp(-i / 150.0)) # exponential envelope graph0.setData(x, y0) # 设置数据 graph1.setData(x, y1) # 设置数据 # 根据范围自动缩放曲线 # self.chart1.rescaleAxes() """ 手动设置量程 """ self.chart1.xAxis.setRange(0, 250) self.chart1.yAxis.setRange(-1, 1) self.set_chart_style(self.chart1) self.add_trace(self.chart1) self.chart1.plotLayout().insertRow(0) self.chart1.plotLayout().addElement(0, 0, QCPTextElement( self.chart1, "更改背景 添加游标", QFont("sans", 12, QFont.Bold))) def add_trace(self, chart): """ 添加游标 :param chart: :return: """ self.tracer = QCPItemTracer(chart) self.tracer.setGraph(chart.graph(0)) # self.tracer.setGraphKey(50)# 初始坐标点 """ tsCircle = 3 #⚪ tsCrosshair = 2 # 大十字 tsNone = 0 tsPlus = 1 十字 tsSquare = 4 方块 """ self.tracer.setStyle(2) self.tracer.setVisible(0) def set_chart_style(self, chart): """ 设置曲线样式 :param chart: 哪个曲线控件 :return: """ """ 设置x，y标签 """ chart.xAxis.setLabel("点数") chart.yAxis.setLabel("透明度") chart.legend.setVisible(1) # chart.xAxis.ticker().setTickCount(5)#设置自动标签数y # chart.yAxis.ticker().setTickCount(2) # 设置自动标签数 # 网格线 chart.xAxis.grid().setVisible(1) # 网格线可见 chart.xAxis.grid().setPen(QPen(QColor(130, 130, 130), 0, Qt.SolidLine)) chart.yAxis.grid().setPen(QPen(QColor(130, 130, 130), 0, Qt.DotLine)) # 改变背景色 # self.chart1.setBackground(QBrush(Qt.darkCyan)) # 设定右上角图形标注的字体 chart.legend.setFont(QFont("宋体", 9)) # 设置画笔 chart.graph(0).setPen(QPen(Qt.red)) # 设置画刷,曲线和X轴围成面积的颜色 chart.graph(0).setBrush(QBrush(Qt.darkCyan)) chart.graph(0).setName("曲线1") chart.graph(1).setName("曲线2") # 是否显示刻度线 # chart.xAxis2.setVisible(1) # # 是否显示刻度线文本 # chart.xAxis2.setTickLabels(0) # chart.yAxis2.setVisible(1) # chart.yAxis2.setTickLabels(0) chart.axisRect().setupFullAxesBox() """ 取消上轴和右轴的 小刻度 """ chart.xAxis2.setSubTicks(0) chart.yAxis2.setSubTicks(0) chart.xAxis2.setTicks(0) chart.yAxis2.setTicks(0) """ iRangeDrag = 1 # 缩放拖曳 iRangeZoom = 2 # 滚轮缩放 iSelectAxes = 16 #选择区域 iSelectItems = 64 # 选择items iSelectLegend = 32 # 选择 图例 iSelectOther = 128 iSelectPlottables = 8 # 选择曲线 相加的数值放入chart.setInteraction """ chart.setInteraction(55) chart.legend.setSelectableParts(QCPLegend.spItems) chart.selectionChangedByUser.connect(self.legnd_choose) chart.mousePress.connect(self.reply_chart) # 设置点的样式 # chart.graph().setScatterStyle(QCPScatterStyle(QPixmap("logo.ico"))) def reply_chart(self, event): """ 鼠标右键 曲线自动调节大小 :return: """ # 如果鼠标左键 返回 ==1 左键 ==2 右键 if event.button() == 1: return self.sender().rescaleAxes() chart = self.sender() for i in range(self.sender().graphCount()): chart.graph(i).setVisible(1) self.sender().replot() def legnd_choose(self, tracerorgraph=1): """ 图例选择 :return: """ chart = self.sender() self.tracer.setVisible(0) for i in range(self.sender().graphCount()): item = chart.legend.itemWithPlottable(chart.graph(i)) if tracerorgraph: if item.selected(): self.tracer.setGraph(self.sender().graph(i)) self.tracer.setVisible(1) else: chart.graph(i).setVisible(item.selected()) def init_chart2(self): """ 初始化第二曲线 :return: """ self.chart2.addGraph() self.chart2.addGraph() # self.set_chart_style(self.chart2) self.chart2.legend.setVisible(1) # 填充两线之间 self.chart2.graph(0).setChannelFillGraph(self.chart2.graph(1)) self.chart2.plotLayout().insertRow(0) self.chart2.plotLayout().addElement(0, 0, QCPTextElement( self.chart2, "自动更新", QFont("sans", 12, QFont.Bold))) def init_chart3(self): """ 初始化第三曲线 :return: """ self.chart3.addGraph() self.chart3.addGraph()