将多个绘图保存在一个 PDF 文件中 [英] Save multiple plots in a single PDF file

问题描述

def plotGraph(X,Y):
    fignum = random.randint(0,sys.maxint)
    plt.figure(fignum)
    ### Plotting arrangements ###
    return fignum

主模块

import matplotlib.pyplot as plt
### tempDLStats, tempDLlabels are the argument
plot1 = plotGraph(tempDLstats, tempDLlabels)
plot2 = plotGraph(tempDLstats_1, tempDLlabels_1)
plot3 = plotGraph(tempDLstats_2, tempDLlabels_2)
plt.show()

我想将所有图形 plot1、plot2、plot3 保存到一个 PDF 文件中.有什么方法可以实现吗?我无法在主模块中包含 plotGraph 函数.

I want to save all the graphs plot1, plot2, plot3 to a single PDF file. Is there any way to achieve it? I can't include the plotGraph function in the main module.

有一个名为 pyplot.savefig 的函数，但它似乎只适用于单个图形.还有其他方法可以实现吗?

There's a function named pyplot.savefig but that seems to work only with a single figure. Is there any other way to accomplish it?

推荐答案

没关系有办法去做.

def plotGraph(X,Y):
     fignum = random.randint(0,sys.maxint)
     fig = plt.figure(fignum)
     ### Plotting arrangements ###
     return fig

------绘图模块------

------ plotting module ------

----- 主模块 ----

----- mainModule ----

 import matplotlib.pyplot as plt
 ### tempDLStats, tempDLlabels are the argument
 plot1 = plotGraph(tempDLstats, tempDLlabels)
 plot2 = plotGraph(tempDLstats_1, tempDLlabels_1)
 plot3 = plotGraph(tempDLstats_2, tempDLlabels_2)
 plt.show()
 plot1.savefig('plot1.png')
 plot2.savefig('plot2.png')
 plot3.savefig('plot3.png')

----- mainModule -----

----- mainModule -----

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