在 Plotly Python 中更改子图标题 position/orientation

Question

我需要在python情节中更改子情节标题，即旋转90度。我努力了，但没有成功。

这是我的代码

import plotly.offline as pyo
import plotly.graph_objs as go
from plotly import tools

trace1 = go.Bar(
    x=[1, 2, 3],
    y=[10, 11, 12]
)
trace2 = go.Bar(
    x=[1, 2, 3],
    y=[100, 110, 120],
)
trace3 = go.Bar(
    x=[1, 2, 3],
    y=[1000, 1100, 1200],
)

fig = tools.make_subplots(rows=1, cols=3,
                          shared_xaxes=True, shared_yaxes=True,
                          vertical_spacing=0.001,
                          subplot_titles = ('first_title', 'second_title', 'third_title'))

fig.append_trace(trace1, 1, 1)
fig.append_trace(trace2, 1, 2)
fig.append_trace(trace3, 1, 3)

fig['layout'].update(height=600, width=600, title='main_title')

pyo.plot(fig, filename='file.html')

所以，我想将 'first_title'、'second_title' 和 'third_title' 旋转 90 度，这样它们就不会相互重叠。有可能解决这个问题吗？

Answer 1

您只需在 pyo.plot(fig, filename='file.html') 行之前添加此代码：

for annotation in fig['layout']['annotations']: 
    annotation['textangle']=-90

但是这样会导致副标题和主标题重叠，所以建议你去掉。这是最终代码：

import plotly.offline as pyo
import plotly.graph_objs as go
from plotly import tools

trace1 = go.Bar(
    x=[1, 2, 3],
    y=[10, 11, 12]
)
trace2 = go.Bar(
    x=[1, 2, 3],
    y=[100, 110, 120],
)
trace3 = go.Bar(
    x=[1, 2, 3],
    y=[1000, 1100, 1200],
)

fig = tools.make_subplots(rows=1, cols=3,
                          shared_xaxes=True, shared_yaxes=True,
                          vertical_spacing=0.001,
                          subplot_titles = ('first_title', 'second_title', 'third_title'))

fig.append_trace(trace1, 1, 1)
fig.append_trace(trace2, 1, 2)
fig.append_trace(trace3, 1, 3)

fig['layout'].update(height=600, width=600, title='')

# rotate all the subtitles of 90 degrees
for annotation in fig['layout']['annotations']: 
        annotation['textangle']=-90

pyo.plot(fig, filename='file.html')

这就是你得到的：

Answer 2

此答案链接到 Can you alter a subplot title location in plotly?，后者寻求正确对齐子图图块的答案。

我对 2 x 2 网格上的子图标题有类似的问题。答案很简单

fig.update_annotations(yshift=20)

在 Plotly Python 中更改子图标题 position/orientation

Change subplots title position/orientation in Plotly Python

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