def __iniChart(self): #图表初始化
self.chart = QPolarChart() ##极坐标图
self.chart.legend().setVisible(False)
self.ui.chartView.setChart(self.chart)
self.ui.chartView.setRenderHint(QPainter.Antialiasing)
self.ui.chartView.setCursor(Qt.CrossCursor)
self.__axisAngle = QValueAxis() #角度坐标轴
self.__axisAngle.setRange(0, 360) #角度范围
self.__axisAngle.setLabelFormat("NE %.0f")
self.__axisAngle.setTickCount(9)
self.chart.addAxis(self.__axisAngle,
QPolarChart.PolarOrientationAngular)
self.__axisRadial = QValueAxis() #径向坐标轴
self.__axisRadial.setTickCount(6)
self.__axisRadial.setLabelFormat("%.1f") #标签格式
self.chart.addAxis(self.__axisRadial,
QPolarChart.PolarOrientationRadial)
pen = QPen(Qt.blue)
pen.setWidth(2)
seriesSpLine = QSplineSeries()
seriesSpLine.setPen(pen)
seriesSpLine.setPointsVisible(True) #数据点可见
seriesSpLine.hovered.connect(self.do_series_hovered)
self.chart.addSeries(seriesSpLine)
seriesSpLine.attachAxis(self.__axisAngle)
seriesSpLine.attachAxis(self.__axisRadial)
def __createChart(self): ##创建图表
chart = QChart() #创建 Chart
## chart.setTitle("简单函数曲线")
chart.legend().setVisible(True)
self.chartView.setChart(chart) #Chart添加到chartView
pen=QPen()
pen.setWidth(2)
##========LineSeries折线 和 ScatterSeries散点
seriesLine = QLineSeries()
seriesLine.setName("LineSeries折线")
seriesLine.setPointsVisible(False) #数据点不可见
pen.setColor(Qt.red)
seriesLine.setPen(pen)
seriesLine.hovered.connect(self.do_series_hovered) #信号 hovered
seriesLine.clicked.connect(self.do_series_clicked) #信号 clicked
chart.addSeries(seriesLine) #添加到chart
seriesLinePoint = QScatterSeries() #散点序列
seriesLinePoint.setName("ScatterSeries散点")
shape=QScatterSeries.MarkerShapeCircle #MarkerShapeRectangle
seriesLinePoint.setMarkerShape(shape) #散点形状，只有2种
seriesLinePoint.setBorderColor(Qt.yellow)
seriesLinePoint.setBrush(QBrush(Qt.red))
seriesLinePoint.setMarkerSize(10) #散点大小
seriesLinePoint.hovered.connect(self.do_series_hovered) #信号 hovered
seriesLinePoint.clicked.connect(self.do_series_clicked) #信号 clicked
chart.addSeries(seriesLinePoint) #添加到chart
##======== SplineSeries 曲线和 QScatterSeries 散点
seriesSpLine = QSplineSeries()
seriesSpLine.setName("SplineSeries曲线")
seriesSpLine.setPointsVisible(False) #数据点不可见
pen.setColor(Qt.blue)
seriesSpLine.setPen(pen)
seriesSpLine.hovered.connect(self.do_series_hovered) #信号 hovered
seriesSpLine.clicked.connect(self.do_series_clicked) #信号 clicked
seriesSpPoint = QScatterSeries() #散点序列
seriesSpPoint.setName("QScatterSeries")
shape=QScatterSeries.MarkerShapeRectangle #MarkerShapeCircle
seriesSpPoint.setMarkerShape(shape) #散点形状，只有2种
seriesSpPoint.setBorderColor(Qt.green)
seriesSpPoint.setBrush(QBrush(Qt.blue))
seriesSpPoint.setMarkerSize(10) #散点大小
seriesSpPoint.hovered.connect(self.do_series_hovered) #信号 hovered
seriesSpPoint.clicked.connect(self.do_series_clicked) #信号 clicked
chart.addSeries(seriesSpLine)
chart.addSeries(seriesSpPoint)
## 创建缺省坐标轴
chart.createDefaultAxes() #创建缺省坐标轴并与序列关联
chart.axisX().setTitleText("time(secs)")
chart.axisX().setRange(0,10)
chart.axisX().applyNiceNumbers()
chart.axisY().setTitleText("value")
chart.axisY().setRange(-2,2)
chart.axisY().applyNiceNumbers()
for marker in chart.legend().markers(): #QLegendMarker类型列表
marker.clicked.connect(self.do_LegendMarkerClicked)