How make label text vertical in plotly.express.choropleth_mapbox?

[Ruslan]

Could you please help me with advice on how to make label text vertically? And my choropleth_mapbox graph will not change width when the label is too long.

[AIMPED]

HI @Ruslan welcome to the forums.

Take a look at this example on how to show a vertical colorbar title:

Rotating color bar title?

Hi @austinv11 welcome to the forums. Unfortunately there is no builtin function for this, you would have to use annotations. An example: import plotly.express as px import numpy as np fig = px.imshow( np.random.randint(0, 255, size=(10, 10)), color_continuous_scale='viridis', ) fig.update_layout( width=600, height=600, coloraxis_colorbar={"title": 'Real title'} ) # add your rotated title via annotations fig.update_layout( margin=dict(r=150), # ^^ making a bit of s…

[Ruslan]

I found out fig.update_layout(coloraxis_colorbar_title_side="right"). But you help me too. Thanks.

[Ruslan]

What helps me to understand how it works. https://plotly.com/python/creating-and-updating-figures/#magic-underscore-notation