如何将 update_layout 边距限制为 Plotly / Dash 中的一个子图？

Question

在 2 行 1 列布局中，main 图位于 sub 上方。

    fig.add_trace(go.Scatter(x=df.index, y=main_data, name='main',
                             line=dict(color='white', width=1), row=1, col=1)

    fig.add_trace(go.Bar(x=df.index, y=sub_data, name='sub', row=2, col=1)

当我使用update_layout时如下：

    fig.update_layout(height=400, margin=dict(t=30, b=15, l=15), pad=20)

填充应用于main和sub。

有没有办法让填充仅应用于 main？

Answer 1

fig.update_layout() applies only to the attributes of the entire figure, and that's why you can't address attributes of subplots with fig.update_layout(row = 2, col = 2) like you can with fig.update_traces(row, col). So depending on what you'd like to achieve here, you're going to have to adjust the appearance of your subplots through specs and / or row_heights and column_widths in your make_subplots()来电.

下面是使用这两种方法的示例：

完整代码：

from plotly.subplots import make_subplots
import plotly.graph_objects as go

fig = make_subplots(
    rows=5, cols=2,
    column_widths = [0.7, 0.3],
    row_heights = [0.2, 0.2, 0.2, 0.1, 0.1],
    specs=[[{}, {"rowspan": 2}],
           [{}, None],
           [{"rowspan": 2, "colspan": 2}, None],
           [None, None],
           [{}, {}]],
#     print_grid=True
)

fig.add_trace(go.Scatter(x=[1, 2], y=[1, 2], name="(1,1)"), row=1, col=1)
fig.add_trace(go.Scatter(x=[1, 2], y=[1, 2], name="(1,2)"), row=1, col=2)
fig.add_trace(go.Scatter(x=[1, 2], y=[1, 2], name="(2,1)"), row=2, col=1)
fig.add_trace(go.Scatter(x=[1, 2], y=[1, 2], name="(3,1)"), row=3, col=1)
fig.add_trace(go.Scatter(x=[1, 2], y=[1, 2], name="(5,1)"), row=5, col=1)
fig.add_trace(go.Scatter(x=[1, 2], y=[1, 2], name="(5,2)"), row=5, col=2)

fig.update_layout(height=600, width=600, title_text="specs examples")
fig.show()

如何将 update_layout 边距限制为 Plotly / Dash 中的一个子图？

How to limit update_layout margins only to one subplot in Plotly / Dash?

python

python-3.x

plotly

plotly-dash

plotly-python

完整代码：