移动树地图Matplotlib上的标签

Question

我有一个树状地图，有足够小的部分，标签重叠。是否有任何方法将size=4下的部分(或周围的部分)的标签移动到地块之外，箭头指向它，或者到一个只包含小部分标签的小图例中？

树状图生成，代码如下。

import squarify #pip install squarify
import matplotlib.pyplot as plt

labels=["longlabel1","longlabel2","longlabel3","longlabel4","longlabel5","longlabel6","longlabel7","longlabel8","longlabel9","longlabel10","longlabel11","longlabel12",]
sizes=[1.8,1.3,10.5,13.8,7.8,6.7,9.9,12.2,12.7,10.9,7.6,4.8]

x=dict(zip(labels,sizes))
sortedDict=dict(sorted(x.items(),key=lambda item:item[1],reverse=True))

squarify.plot(sizes=list(sortedDict.values()),color=['red','blue','cyan','black','gray','green'],label=list(iter(sortedDict)),alpha=.8)

plt.axis('off')
plt.show

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Answer 1

也许您可以使用matplotlib-extra包，它包括一个treemap函数来绘制分层树状图。

就你的情况而言，这很简单：

import matplotlib.pyplot as plt

import mpl_extra.treemap as tr

labels=["longlabel1","longlabel2","longlabel3","longlabel4","longlabel5",
        "longlabel6","longlabel7","longlabel8","longlabel9","longlabel10",
        "longlabel11","longlabel12",]
sizes=[1.8,1.3,10.5,13.8,7.8,6.7,9.9,12.2,12.7,10.9,7.6,4.8]

fig, ax = plt.subplots(figsize=(7,7), dpi=100, subplot_kw=dict(aspect=1.156))

tr.treemap(ax, sizes, labels=labels, 
           fill=labels, cmap=['red','blue','cyan','black','gray','green'],
           rectprops=dict(ec='w'), 
           textprops=dict(c='w'))

ax.axis('off')

获得的数字如下：

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