Python 子情节中的绘图热图：如何设置纵横比

还有一个类似的问题，但它只问一个正常的数字.各自的答案不适用于次要情节:

https://stackoverflow.com/a/55239488/2215205
https://stackoverflow.com/a/71579181/2215205

1. px.imshow(df, aspect='equal')和fig.add_trace()一起被完全忽略.
2. 在这方面操作地物布局仅适用于第一个子图，而不是所有子图:

import pandas as pd
import plotly.express as px
import plotly.graph_objects as go

## Example data
df = pd.DataFrame([[0,0,0,0,0],
                   [0,0,1,0,0],
                   [0,1,2,1,0],
                   [0,0,1,0,0],
                   [0,0,0,0,0],
                  ])

## Subplots w/ go.Heatmap()
layout = dict(
    # yaxis=...,
    # xaxis=...,
    # width=plot_width,
    # height=plot_height,
    # autosize=False,
    yaxis_scaleanchor="x" ,  # <---- only works in 1st subplot :(
    )

fig = go.Figure(layout=layout).set_subplots(rows=1, cols=2, subplot_titles=['#1', '#2'])

fig.add_trace(
    go.Heatmap(
        z = df,
        coloraxis = "coloraxis",  # use a common coloraxis for all subplots
    ), 
    1,1)
fig.add_trace(
    go.Heatmap(
        z = df*2,
        coloraxis = "coloraxis",  # use a common coloraxis for all subplots
    ),
    1,2)

## Update y-axes
fig.update_yaxes(
    title_text="yaxis #1", 
    row=1, col=1, 
    scaleanchor='x',  # <---- only works in 1st subplot :(  ==> works in Colab !!
    ) 
fig.update_yaxes(
    title_text="yaxis #2",
    row=1, col=2,
    scaleanchor='x',  # <---- only works in 1st subplot :( ==> works in Colab !!
    )

## Update layout
# fig['layout']['yaxis']['scaleanchor']='x' # <--- updates only first subplot :(

fig.update_layout(
    title='2D Heatmaps',
    autosize=False,
    # yaxis_scaleanchor="x",  # <--- updates only first subplot :(
    yaxis = dict(scaleanchor = 'x'),   # <--- updates only first subplot :(
    # coloraxis_colorscale='Viridis',
    )

# fig.show()

我们对任何帮助都深表感谢.

在我的努力下，请在这里找到一本Jupyter-Notebook: https://colab.research.google.com/drive/13NKNmgAXudXp62UlmXKDhVFgpFe1YeQN?usp=sharing个