5

使用以下代码:

from matplotlib import pyplot as plt
from matplotlib_venn import venn2
from collections import OrderedDict

named_sets = {'x1': set(['foo','foo','bar',"pax"]), "x3" : set(['foo','qux','bar',"zoo"])}
od = OrderedDict(sorted(named_sets.iteritems()))

circlenm = ()
circlels = []
for k,v in od.iteritems():
    circlenm = circlenm + (k,)
    circlels.append(v)


c = venn2(subsets = circlels,set_labels = circlenm)
c.get_patch_by_id('10').set_color('red')
c.get_patch_by_id('01').set_color('blue')
c.get_patch_by_id('10').set_edgecolor('none')
c.get_patch_by_id('01').set_edgecolor('none')
c.get_patch_by_id('10').set_alpha(0.4)
c.get_patch_by_id('01').set_alpha(0.4)
plt.show()

我可以得到下图:

在此处输入图像描述

在这里,我想将“蓝色”与“红色”的圆圈混合在一起。请注意,混合的结果是brown

但实际值应该是浅洋红色(下图是使用 default 创建的matplotlib_venn.venn3):

在此处输入图像描述

我怎样才能正确地做到这一点?

4

1 回答 1

4

添加这 3 行来设置交叉点的颜色和显示属性:

c.get_patch_by_id('11').set_color('magenta')
c.get_patch_by_id('11').set_edgecolor('none')
c.get_patch_by_id('11').set_alpha(0.4)

如果你想要一个精确的颜色,那么你可以这样设置:

c.get_patch_by_id('11').set_color('#e098e1')

补丁 id 是一个位掩码,显示该区域在哪个圆圈内。

于 2015-04-21T06:50:46.947 回答