Plotly legend next to each subplot, Python

Question

After noticing that there was no answer to this question at the moment, I would like to know if anyone has an idea how to:

Have a legends for each subplot.
Group legends by name. (Ex: for different subplots, all have the same two curves but with different values).

Here's my Plotly script:

from plotly import tools
import plotly.plotly as py
import plotly.graph_objs as go
import plotly
nom_plot=[]

trace1 = go.Scatter(x=[1, 2, 3], y=[4, 5, 6],name='1',showlegend=True)
nom_plot.append('GRAPH 1')
trace2 = go.Scatter(x=[20, 30, 40], y=[50, 60, 70],name='2',yaxis='y2')
nom_plot.append('GRAPH 2')
trace3 = go.Scatter(x=[300, 400, 500], y=[600, 700, 800],showlegend=False)
nom_plot.append('GRAPH 3')
trace4 = go.Scatter(x=[4000, 5000, 6000], y=[7000, 8000, 9000])
nom_plot.append('GRAPH 4')
trace5 = go.Scatter(x=[20, 30, 40], y=[50, 60, 70])
nom_plot.append('GRAPH 5')

print(trace1)



fig = tools.make_subplots(rows=4, cols=2, subplot_titles=(nom_plot))

fig.append_trace(trace1, 1, 1)
fig['layout']['xaxis1'].update(title='xaxis 1 title')
fig.append_trace(trace2, 1, 1)
fig.append_trace(trace3, 2, 1)
fig.append_trace(trace4, 2, 2)
fig['layout']['yaxis3'].update(title='yaxis 3 title')
fig.append_trace(trace5, 3, 1)


fig['layout']['yaxis2'].update(
    overlaying='y1',
    side='right', 
    anchor='x1',
    # domain=[0.15, 1],
    range=[2, 6],
    # zeroline=False,
    showline=True, 
    showgrid=False,
    title='yaxis 3 title'
)

fig['layout'].update(height=1000, width=1000, title='Multiple Subplots' +' with Titles')


plotly.offline.plot(fig, filename='multiple-y-subplots6.html')

This what I obtain (Using Plotly Script above):

And this is what I want (Made by Pygal):

Not sure what you're asking in the 2nd question but as for the 1st take a look at stackoverflow.com/questions/27016904/… — Veltzer Doron
– Veltzer Doron, Commented Dec 13, 2017 at 17:40
community.plot.ly/t/plotly-subplots-with-individual-legends/… — Maximilian Peters
– Maximilian Peters, Commented Dec 14, 2017 at 23:30

belkacem mekakleb · Accepted Answer · 2018-01-15 13:39:58Z

The solution is to create an HTML file that merge sevral charts offline rendered as html files:

import plotly
import plotly.offline as py
import plotly.graph_objs as go

fichier_html_graphs=open("DASHBOARD.html",'w')
fichier_html_graphs.write("<html><head></head><body>"+"\n")

i=0
while 1:
    if i<=40:
        i=i+1


        #______________________________--Plotly--______________________________________


        color1 = '#00bfff'
        color2 = '#ff4000'

        trace1 = go.Bar(
            x = ['2017-09-25','2017-09-26','2017-09-27','2017-09-28','2017-09-29','2017-09-30','2017-10-01'],
            y = [25,100,20,7,38,170,200],
            name='Debit',
            marker=dict(
                color=color1
            )

        )
        trace2 = go.Scatter(

            x=['2017-09-25','2017-09-26','2017-09-27','2017-09-28','2017-09-29','2017-09-30','2017-10-01'],
            y = [3,50,20,7,38,60,100],
            name='Taux',
            yaxis='y2'

        )
        data = [trace1, trace2]
        layout = go.Layout(
            title= ('Chart Number: '+str(i)),
            titlefont=dict(
            family='Courier New, monospace',
            size=15,
            color='#7f7f7f'
            ),
            paper_bgcolor='rgba(0,0,0,0)',
            plot_bgcolor='rgba(0,0,0,0)',

            yaxis=dict(
                title='Bandwidth Mbit/s',
                titlefont=dict(
                    color=color1
                ),
                tickfont=dict(
                    color=color1
                )
            ),
            yaxis2=dict(
                title='Ratio %',
                overlaying='y',
                side='right',
                titlefont=dict(
                    color=color2
                ),
                tickfont=dict(
                    color=color2
                )

            )

        )
        fig = go.Figure(data=data, layout=layout)
        plotly.offline.plot(fig, filename='Chart_'+str(i)+'.html',auto_open=False)
        fichier_html_graphs.write("  <object data=\""+'Chart_'+str(i)+'.html'+"\" width=\"650\" height=\"500\"></object>"+"\n")
    else:
        break

fichier_html_graphs.write("</body></html>")
print("CHECK YOUR DASHBOARD.html In the current directory")

Result:

Ali · Accepted Answer · 2019-08-19 01:59:31Z

3

I used two side by side Div elements to emulate Plotly subplot. Doing this way, we have independent legends. However, if we want to share an axis, we should do it manually:

app.layout = html.Div(children=[
        html.Div(['YOUR FIRST GRAPH OBJECT'],
                 style = {'float':'left', 'width':'49%'}) ,
        html.Div(['YOUR SECOND GRAPH OBJECT'],
                 style = {'float':'right', 'width':'49%'})   
                ])

answered Aug 19, 2019 at 1:59

Ali

1214 bronze badges

Comments

PiWi · Accepted Answer · 2025-03-19 16:25:02Z

0

I proposed an answer for a very similar question here: https://stackoverflow.com/a/79520750/5552507

It relies on plotly without html.

answered Mar 19 at 16:25

PiWi

3411 silver badge14 bronze badges

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