def _setupAxes(self):
for a in self.chart.axes():
self.chart.removeAxis(a)
if len(self.chart.series()) == 0:
return
if self.chartView.logX:
xAxis = QtCharts.QLogValueAxis()
else:
xAxis = QtCharts.QValueAxis()
if self.chartView.logY:
yAxis = QtCharts.QLogValueAxis()
else:
yAxis = QtCharts.QValueAxis()
xAxis.setTitleText("Frequency (Hz)")
yAxis.setTitleText("PSD ((" + self.unit +
")<sup>2</sup> Hz <sup>-1</sup>)")
self.chart.addAxis(xAxis, Qt.AlignBottom)
self.chart.addAxis(yAxis, Qt.AlignLeft)
for s in self.chart.series():
s.attachAxis(xAxis)
s.attachAxis(yAxis)
self.chart.axes(Qt.Horizontal)[0].setGridLineVisible(True)
self.chart.axes(Qt.Horizontal)[0].setMinorGridLineVisible(True)
self.chart.legend().setAlignment(Qt.AlignTop)
self.frequencyChanged(*self.toolBar.getFrequencyRange())
self.setupAxes = False
def __init__(self):
QMainWindow.__init__(self)
self.series = QtCharts.QLineSeries()
self.series.append([
QPointF(1.0, 1.0),
QPointF(2.0, 73.0),
QPointF(3.0, 268.0),
QPointF(4.0, 17.0),
QPointF(5.0, 4325.0),
QPointF(6.0, 723.0)
])
self.chart = QtCharts.QChart()
self.chart.addSeries(self.series)
self.chart.legend().hide()
self.chart.setTitle("Logarithmic axis example")
self.axisX = QtCharts.QValueAxis()
self.axisX.setTitleText("Data point")
self.axisX.setLabelFormat("%i")
self.axisX.setTickCount(self.series.count())
self.chart.addAxis(self.axisX, Qt.AlignBottom)
self.series.attachAxis(self.axisX)
self.axisY = QtCharts.QLogValueAxis()
self.axisY.setTitleText("Values")
self.axisY.setLabelFormat("%g")
self.axisY.setBase(8.0)
self.axisY.setMinorTickCount(-1)
self.chart.addAxis(self.axisY, Qt.AlignLeft)
self.series.attachAxis(self.axisY)
self.chartView = QtCharts.QChartView(self.chart)
self.chartView.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(self.chartView)
