fixedrange=True is not always maintained

[pfbuxton]

The following has the correct behaviour, if you zoom in and then double-click to zoom out the yaxis2 does not change:

import dash
import dash_core_components as dcc
import dash_html_components as html
import plotly.graph_objs as go

app = dash.Dash(__name__)

trace1 = go.Scatter(
    x=[1, 2, 3, 4],
    y=[1, 2, 3, 4],
    xaxis='x1',
    yaxis='y'
)
trace2 = go.Scatter(
    x=[1, 2, 3, 4],
    y=[0.2, 999, 0.3, 0.4],
    xaxis='x1',
    yaxis='y2'
)

# Layout
layout = dict(
    xaxis = dict(
        title='xaxis',
        range=[0, 4],
    ),
    yaxis = dict(
        title='yaxis',
        range=[-1, 5]
    ),
    yaxis2=dict(
        title='yaxis2',
        titlefont=dict(
            color='#229954'
        ),
        tickfont=dict(
            color='#229954'
        ),
        overlaying='y',
        side='right',
        showgrid=False,
        zeroline=False,
        range=[-1, 1],
        fixedrange=True
    ),
)

data = [ trace1, trace2 ]

figure = dict(
    data=data,
    layout=layout
)

app.layout = html.Div(children=[
    html.H1(children='yaxis2 stays fixed'),
    
    dcc.Graph(
        id='example-graph',
        figure=figure
    )
])


if __name__ == '__main__':
    app.run_server(debug=True)

However, the when we run the following, CLICK, zoom in and double-click to zoom out the yaxis2 is auto-scaled:

import dash
import dash_core_components as dcc
import dash_html_components as html
import plotly.graph_objs as go

app = dash.Dash(__name__)

trace1 = go.Scatter(
    x=[1, 2, 3, 4],
    y=[1, 2, 3, 4],
    xaxis='x1',
    yaxis='y'
)
trace2 = go.Scatter(
    x=[1, 2, 3, 4],
    y=[0.2, 999, 0.3, 0.4],
    xaxis='x1',
    yaxis='y2'
)

# Layout
layout = dict(
    xaxis = dict(
        title='xaxis',
        range=[0, 4],
    ),
    yaxis = dict(
        title='yaxis',
        range=[-1, 5]
    ),
    yaxis2=dict(
        title='yaxis2',
        titlefont=dict(
            color='#229954'
        ),
        tickfont=dict(
            color='#229954'
        ),
        overlaying='y',
        side='right',
        showgrid=False,
        zeroline=False,
        range=[-1, 1],
        fixedrange=True
    ),
)

data = [ trace1, trace2 ]

figure = dict(
    data=data,
    layout=layout
)

app.layout = html.Div(children=[
    html.H1(children='yaxis2 does not stay fixed'),
    
    html.Button( 'CLICK', id='submit-button' ),
    
    dcc.Graph(
        id='example-graph'
    )
])

@app.callback(
    dash.dependencies.Output('example-graph','figure'),
    [ dash.dependencies.Input('submit-button','n_clicks') ])
def dummy_function( n_clicks ):
    if not(n_clicks==None):
        return figure
    else:
        raise dash.exceptions.PreventUpdate()

if __name__ == '__main__':
    app.run_server(debug=True)

[Marc-Andre-Rivet]

@pfbuxton Thanks for reporting this issue. I was able to reproduce it here https://codepen.io/anon/pen/JwRxOo without the Dash environment. It seems to be related to the Plotly.js react wrapper. Investigating some more and opening an issue in the Plotly.js repo / will link it back here.

[Marc-Andre-Rivet]

plotly/plotly.js#3347

[gvwilson]

Hi - we are tidying up stale issues and PRs in Plotly's public repositories so that we can focus on things that are most important to our community. If this issue is still a concern, please add a comment letting us know what recent version of our software you've checked it with so that I can reopen it and add it to our backlog. (Please note that we will give priority to reports that include a short reproducible example.) If you'd like to submit a PR, we'd be happy to prioritize a review, and if it's a request for tech support, please post in our community forum. Thank you - @gvwilson