Python — Setting Background color to transparent in Plotly plots

问题

My python code creates a plotly Bar plot but the background is white in color i want to change it into transparent color is that doable

My Code:

import plotly.plotly as py
from plotly.graph_objs import *
py.sign_in('username', 'api_key')
data = Data([
Bar(
    x=['Sivaranjani S', 'Vijayalakshmi C', 'Rajeshwari S', 'Shanthi Priscilla', 'Pandiyaraj G', 'Kamatchi S', 'MohanaPriya', 'Madhumitha G', 'Franklin Alphones Raj J', 'Akfaris Almaas', 'Biswajit Champati', 'Priya R', 'Rekha Rajasekaran', 'Sarath Kumar B', 'Jegan L', 'Karthick A', 'Mahalakshmi S', 'Ragunathan V', 'Anu S', 'Ramkumar KS', 'Uthra R'],
    y=[1640, 1394, 1390, 1313, 2166, 1521, 1078, 1543, 780, 1202, 1505, 2028, 2032, 1769, 1238, 1491, 1477, 1329, 2038, 1339, 1458],
    text=['Scuti', 'Scuti', 'Cygni', 'Scorpii', 'Scuti', 'Pollux', 'Scorpii', 'Pollux', 'Scuti', 'Pollux', 'Scorpii', 'Scorpii', 'Scuti', 'Cygni', 'Scorpii', 'Scuti', 'Scuti', 'Pollux', 'Scuti', 'Pollux', 'Pollux'])])
plot_url = py.plot(data)

The graph looks like this

回答1:

For a fully transparent plot, make sure to specify both the paper bgcolor and the plot's:

import plotly.plotly as py
from plotly.graph_objs import *
py.sign_in('', '')
data = Data([
    Bar(
        x=['Sivaranjani S', 'Vijayalakshmi C', 'Rajeshwari S', 'Shanthi Priscilla', 'Pandiyaraj G', 'Kamatchi S', 'MohanaPriya', 'Madhumitha G', 'Franklin Alphones Raj J', 'Akfaris Almaas', 'Biswajit Champati', 'Priya R', 'Rekha Rajasekaran', 'Sarath Kumar B', 'Jegan L', 'Karthick A', 'Mahalakshmi S', 'Ragunathan V', 'Anu S', 'Ramkumar KS', 'Uthra R'],
        y=[1640, 1394, 1390, 1313, 2166, 1521, 1078, 1543, 780, 1202, 1505, 2028, 2032, 1769, 1238, 1491, 1477, 1329, 2038, 1339, 1458],
        text=['Scuti', 'Scuti', 'Cygni', 'Scorpii', 'Scuti', 'Pollux', 'Scorpii', 'Pollux', 'Scuti', 'Pollux', 'Scorpii', 'Scorpii', 'Scuti', 'Cygni', 'Scorpii', 'Scuti', 'Scuti', 'Pollux', 'Scuti', 'Pollux', 'Pollux']
    )
])

layout = Layout(
    paper_bgcolor='rgba(0,0,0,0)',
    plot_bgcolor='rgba(0,0,0,0)'
)

fig = Figure(data=data, layout=layout)

plot_url = py.plot(fig, filename='transparent-background')

回答2:

You can use the a Layout to change its colours with the parameters bgcolour and opacity set to yours desires. You could do something like:

data = Data([Bar(... The same you already have...)])

layout = Layout(
    title='Your Title',
    (xaxis, yaxis, WHAT EVER YOU WANT TO SET)

    paper_bgcolor='rgb(233,233,233)', # set the background colour

)
fig = Figure(data=data, layout=layout)
py.plot(fig)

you can find some examples here

来源：https://stackoverflow.com/questions/29968152/python-setting-background-color-to-transparent-in-plotly-plots

标签

python

plotly