drf_plot.py 文件源码

def phase_plot(data, toffset, log_scale, title):
    """Plot the phase of the data in linear or log scale."""
    print("phase")

    phase = numpy.angle(data) / numpy.pi

    fig = plt.figure()
    ax = fig.add_subplot(1, 1, 1)
    ax.plot(phase)

    axmx = numpy.max(phase)

    #ax.axis([-axmx, axmx, -axmx, axmx])
    ax.grid(True)
    ax.set_xlabel('time')
    ax.set_ylabel('phase')
    ax.set_title(title)

    return fig