myplot.py 文件源码

def line():
    """
    Creates a single graph with date and time as the x axis and
    a variable number of plots.

    """

# Save data to redraw plot later

    save_data('line')

# set the screen title, size, density

    fig = plt.figure(title,graph_dimensions,graph_dpi)

# do the plot
    plt.title(title)
    plt.ylabel(ylabel1)
    plt.grid(which="major")

    for plot_num in range(len(ylists)):
         plt.plot(xdatetimes,ylists[plot_num],color=my_colors(plot_num))

# date time formatting

    ax = plt.axes()
    fig.autofmt_xdate()
    ax.fmt_xdata = mdates.DateFormatter('%m/%d/%Y %H:%M')
    loc=mdates.AutoDateLocator()
    datetimefmt = mdates.AutoDateFormatter(loc)
    ax.xaxis.set_major_formatter(datetimefmt)
    ax.xaxis.set_major_locator(loc)

# other formatting

    plt.legend(ylistlabels,loc='upper left')
    plt.autoscale(tight=True)

    # subplots_adjust settings - single plot so zero space between plots
    vleft  = 0.06  # the left side of the subplots of the figure
    vright = 0.97    # the right side of the subplots of the figure
    vbottom = 0.12   # the bottom of the subplots of the figure
    vtop = 0.95      # the top of the subplots of the figure
    vwspace = 0.0   # the amount of width reserved for blank space between subplots
    vhspace = 0.0   # the amount of height reserved for white space between subplots

    plt.subplots_adjust(left=vleft,right=vright,bottom=vbottom,top=vtop,wspace=vwspace,hspace=vhspace)

    fileorscreen(title+'.png')

    return