test_pyqtgraph_benchmark.py 文件源码

def setup(self):
        self.t0 = np.linspace(0, self.duration, self.N)
        self.plotWidget = pg.plot(title="Realtime plotting benchmark")
        self.cycle = 0
        self.starttime = time.time()  # not yet the actual starttime, but needed for timeout
        if self.REDPITAYA:
            self.r.scope.setup(trigger_source='immediately', duration=self.duration)
        self.timer = QtCore.QTimer()
        self.timer.setInterval(1000*self.dt)
        self.timer.timeout.connect(self.update_plot)
        self.timer.start()