simple_data_logic.py 文件源码

def measureLoop(self):
        """ Measure 10 values, add them to buffer and remove the 10 oldest values.
        """
        if self.stopRequest:
            self.stopRequest = False
            self.unlock()
            return

        data = np.zeros((100,  self._data_logic.getChannels()))
        data[:, 0] = np.array([self._data_logic.getData() for i in range(100)])

        self.buf = np.roll(self.buf, -100, axis=0)
        self.buf[-101:-1] = data
        w = np.hanning(self.window_len)
        s = np.r_[self.buf[self.window_len-1:0:-1], self.buf, self.buf[-1:-self.window_len:-1]]
        for channel in range(self._data_logic.getChannels()):
            convolved = np.convolve(w/w.sum(), s[:, channel], mode='valid')
            self.smooth[:, channel] = convolved
        self.sigRepeat.emit()