在matplotlib中以厘米为单位指定图形大小 [英] Specify figure size in centimeter in matplotlib

问题描述

我想知道您是否可以在matplotlib中以厘米为单位指定图形的大小.目前，我写道:

I am wondering whether you can specify the size of a figure in matplotlib in centimeter. At the moment I write:

def cm2inch(value):
    return value/2.54

fig = plt.figure(figsize=(cm2inch(12.8), cm2inch(9.6)))

但是有一种本机的方法吗?

But is there a native approach?

推荐答案

这不是对以下问题的答案:"是否有本机方式?"，但我认为有一种更优雅的方式:

This is not an answer to a question ''Is there a native way?'', but I think, that there is a more elegant way:

def cm2inch(*tupl):
    inch = 2.54
    if isinstance(tupl[0], tuple):
        return tuple(i/inch for i in tupl[0])
    else:
        return tuple(i/inch for i in tupl)

然后可以发布plt.figure(figsize=cm2inch(12.8, 9.6))，我认为这是一种更简洁的方法.该实现还允许我们使用cm2inch((12.8, 9.6))，我个人不喜欢，但有些人可能会这样做.

Then one can issue plt.figure(figsize=cm2inch(12.8, 9.6)), which I think is a much cleaner way. The implementation also allows us to use cm2inch((12.8, 9.6)), which I personally do not prefer, but some people may do.

尽管目前无法在本地执行此操作，但我发现了一个讨论

Even though there is no way of doing this natively at the moment, I found a discussion here.

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