Vibration signal time domain graph drawing function (python version)

Record the time-domain plotting function.
It is convenient to draw directly with plt.plot(), but it lacks horizontal and vertical coordinate labels and horizontal and vertical coordinate scales. A function was written for this purpose, which is convenient for subsequent direct use.

plt.plot(arr)
plt.xlabel('t(s)')
plt.ylabel('Amp(mg)')
plt.show()

Define time-domain plotting functions

def plt_time_domain(arr, fs=1600, ylabel='Amp(mg)', title='原始数据时域图'):
    """
    :fun: 绘制时域图模板
    :param arr: 输入一维数组数据
    :param fs: 采样频率
    :param ylabel: y轴标签
    :param title: 图标题
    :return: None
    """
    import matplotlib.pyplot as plt
    plt.rcParams['font.sans-serif'] = ['SimHei']  # 显示中文
    plt.rcParams['axes.unicode_minus'] = False  # 显示负号
    font = {
    
    'family': 'Times New Roman', 'size': '20', 'color': '0.5', 'weight': 'bold'}
    
    plt.figure(figsize=(8,3))
    length = len(arr)
    t = np.arange(0, length/fs, 1/fs)
    plt.plot(t, arr)
    plt.xlabel('t(s)')
    plt.ylabel(ylabel)
    plt.title(title)
    #===保存图片====#
    if img_save_path:
    	plt.savefig(img_save_path, dpi=500, bbox_inches = 'tight')
    plt.show()

plt_time_domain(arr)

Before adding bbox_inches = 'tight', the saved picture is incomplete. After

adding bbox_inches = 'tight', the saved picture is complete.