Plotly map: inverse colorscale tick values

问题

In Plotly maps (Python), how can I inverse the tick labels on the colorscale so that the smallest value is at the top and the largest at the bottom? For example, -100 at the top and 100 at the bottom?

Note: I do not want to change the colors, just the associated tick values.

回答1:

You can do it with the ticktext input

In your colorbar definition, include tickmode="array" along with ticktext= and tickvals= Something like this:

colorbar=dict(tickmode="array",ticktext=[100,-100],tickvals=[-100,100])

来源：https://stackoverflow.com/questions/36231323/plotly-map-inverse-colorscale-tick-values