[Python] Subplots with Plotly ternary plots

I think I am totally lost when it comes to Plotly Express, Plotly_figure_factory etc.

I cannot figure how to make subplots with Plotly ternary plots out.

First of all, I tried using Plotly Graph Objects, for example I take the ternary plot from ternary scatter plot with Plotly Graph Objects and try to make subplots as detailed here. Putting it all together I end up with

import plotly.graph_objects as go
from plotly.subplots import make_subplots
import plotly.graph_objects as go

rawData = [
{'journalist':75,'developer':25,'designer':0,'label':'point 1'},
{'journalist':70,'developer':10,'designer':20,'label':'point 2'},
{'journalist':75,'developer':20,'designer':5,'label':'point 3'},
{'journalist':5,'developer':60,'designer':35,'label':'point 4'},
{'journalist':10,'developer':80,'designer':10,'label':'point 5'},
{'journalist':10,'developer':90,'designer':0,'label':'point 6'},
{'journalist':20,'developer':70,'designer':10,'label':'point 7'},
{'journalist':10,'developer':20,'designer':70,'label':'point 8'},
{'journalist':15,'developer':5,'designer':80,'label':'point 9'},
{'journalist':10,'developer':10,'designer':80,'label':'point 10'},
{'journalist':20,'developer':10,'designer':70,'label':'point 11'},
];

def makeAxis(title, tickangle):
return {
'title': {'text': title, 'font': { 'size': 20}},
'tickangle': tickangle,
'tickfont': { 'size': 15 },
'tickcolor': 'rgba(0,0,0,0)',
'ticklen': 5,
'showline': True,
'showgrid': True
}

fig = go.Figure(go.Scatterternary({
'mode': 'markers',
'a': [i for i in map(lambda x: x['journalist'], rawData)],
'b': [i for i in map(lambda x: x['developer'], rawData)],
'c': [i for i in map(lambda x: x['designer'], rawData)],
'text': [i for i in map(lambda x: x['label'], rawData)],
'marker': {
'symbol': 100,
'color': '#DB7365',
'size': 14,
'line': { 'width': 2 }
}
}))

fig.update_layout({
'ternary': {
'sum': 100,
'aaxis': makeAxis('Journalist', 0),
'baxis': makeAxis('<br>Developer', 45),
'caxis': makeAxis('<br>Designer', -45)
},
'annotations': [{
'showarrow': False,
'text': 'Simple Ternary Plot with Markers',
'x': 0.5,
'y': 1.3,
'font': { 'size': 15 }
}]
})

fig.show()

my_ternary_plot = go.Scatterternary({
'mode': 'markers',
'a': [i for i in map(lambda x: x['journalist'], rawData)],
'b': [i for i in map(lambda x: x['developer'], rawData)],
'c': [i for i in map(lambda x: x['designer'], rawData)],
'text': [i for i in map(lambda x: x['label'], rawData)],
'marker': {
'symbol': 100,
'color': '#DB7365',
'size': 14,
'line': { 'width': 2 }
}})

figure = make_subplots(rows=1, cols=2)

figure.add_trace(my_ternary_plot,
row=1, col=1
)

figure.add_trace(
my_ternary_plot,
row=1, col=2
)

figure.update_layout(height=600, width=800, title_text="Side By Side Subplots")
figure.show()


But I get the error

ValueError: Trace type 'scatterternary' is not compatible with subplot type 'xy'
at grid position (1, 1)

See the docstring for the specs argument to plotly.subplots.make_subplots for more information on subplot types
​

On top of this, I cannot find references to how to get subplots using plotly express plots, e.g. an object like this

data_rand = pd.DataFrame(data=np.random.uniform(0,1,size=((20,4))), columns = ["a","b", "c", "d"])
data_rand["size"] = 35

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

plot_ter = px.scatter_ternary(data_rand, a="a", b = "b", c="c",
color="d", size="size")
fig.show()


I would like to have subplots, not only with plotly.express plots, also containing other matplotlib plots, cannot find any hint anywhere. Is there not a simple way to pass i do not know ax objects to matplotlib figures?

Thank you very much

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