如何在matplotlib python上孵化broken_barh?

时间:2017-06-22 17:43:33

标签: python matplotlib hatchstyle

我想在matplotlib的broken_barh中使用阴影线。我想要的是为了使图中的不同颜色具有不同的阴影图案。我试图添加为字典,但没有成功,任何人都知道什么是正确的方法? 这是来自matplotlib网站的示例代码。

""" 做一个"破坏"水平条形图,即有间隙的条形图 """

import matplotlib.pyplot as plt

fig, ax = plt.subplots()
ax.broken_barh([(110, 30), (150, 10)], (10, 9), facecolors='blue', hatch='o')
ax.broken_barh([(10, 50), (100, 20), (130, 10)], (20, 9),
               facecolors=('red', 'yellow', 'green'), hatch='//')
ax.set_ylim(5, 35)
ax.set_xlim(0, 200)
ax.set_xlabel('seconds since start')
ax.set_yticks([15, 25])
ax.set_yticklabels(['Bill', 'Jim'])
ax.grid(True)
ax.annotate('race interrupted', (61, 25),
            xytext=(0.8, 0.9), textcoords='axes fraction',
            arrowprops=dict(facecolor='black', shrink=0.05),
            fontsize=16,
            horizontalalignment='right', verticalalignment='top')

plt.show()

我想为不同颜色设置不同的阴影,但不可能:
I want to have different hatching for different color, but it is not possible

如果有人能给我一个暗示怎么做,我将不胜感激?

1 个答案:

答案 0 :(得分:3)

broken_barh不允许设置不同的阴影。但由于破碎的条形只是许多单个条形,您可以绘制具有不同阴影的单条形条。

import matplotlib.pyplot as plt

def brokenhatchbar(xs, y, ax=None, **kw):
    if not ax: ax=plt.gca()
    hatches = kw.pop("hatch", [None]*len(xs))
    facecolors = kw.pop("facecolors", [None]*len(xs))
    edgecolors = kw.pop("edgecolors", [None]*len(xs))
    for i, x in enumerate(xs):
        ax.barh(bottom=y[0], width=x[1], height=y[1], left=x[0],
                facecolor=facecolors[i], edgecolor=edgecolors[i], hatch=hatches[i])

fig, ax = plt.subplots()
brokenhatchbar([(110, 30), (150, 10)], (10, 9), facecolors=['blue','blue'], hatch=['o','////'])
brokenhatchbar([(10, 50), (100, 20), (130, 10)], (20, 9),
               facecolors=('red', 'yellow', 'green'), hatch=('//', 'o', '+'))
ax.set_ylim(5, 35)
ax.set_xlim(0, 200)
ax.set_xlabel('seconds since start')

ax.grid(True)

plt.show()

enter image description here