test_pyqtgraph_benchmark.py 文件源码

def update_plot(self):
        self.cycle += 1
        if self.cycle == 1:
            self.starttime = time.time()
        if self.cycle == self.cycles:
            self.endtime = time.time()
        if self.REDPITAYA:
            t = self.r.scope.times
            #y1 = self.r.scope.curve(ch=1, timeout=0)
            #y2 = self.r.scope.curve(ch=2, timeout=0)
            #self.r.scope.setup()
            y1 = self.r.scope._data_ch1_current
            y2 = self.r.scope._data_ch2_current
        else:
            t = self.t0 + (time.time()-self.starttime)
            phi = 2.0*np.pi*self.frequency*t
            y1 = np.sin(phi)
            y2 = np.cos(phi)
        if self.cycle == 1:
            self.c1 = self.plotWidget.plot(t, y1, pen='g')
            self.c2 = self.plotWidget.plot(t, y2, pen='r')
        else:
            self.c1.setData(t, y1)
            self.c2.setData(t, y2)