Create a wrapper function for Plotly plotting functions

Question

I am working on Jupyter notebook, and I am trying to create a wrapper function for the regular Plotly Scatter3d() function, with my own layout settings, so that I can call this directly every time I need to plot something, and save screen space.

BUT, this is not working. Nothing is getting displayed on the screen. Does anyone know why?

My code:

def BSplot3dPlotly(xyz):
xyz = np.reshape(xyz, (int(xyz.size/3), 3))

trace1 = go.Scatter3d(
    x=xyz[:,0],
    y=xyz[:,1],
    z=xyz[:,2],
    mode = 'markers', # lines+markers',
    #marker=Marker(color=Y, colorscale='Portland')
    marker=dict(
        size=12,
        line=dict(
            color='rgba(217, 217, 217, 0.14)',
            width=0.5
        ),
        opacity=0.8
    )
)

data = go.Data([trace1]) #[trace1]
layout = go.Layout(
    margin=dict(
        l=0,
        r=0,
        b=0,
        t=0
    )
)

fig = go.Figure(data=data, layout=layout)
py.iplot(fig, filename=name)

Here the imput xyzis just a list containing x,y,z coordinates for some points.

please show your import, and how is py defined. Are you using offline plot? — akuiper
– akuiper, Commented Feb 7, 2017 at 22:36

Maximilian Peters · Accepted Answer · 2017-02-08 19:18:23Z

1

You are defining a function BSplot3dPlotly but it doesn't return anything which might be the reason why you don't see anything.
Having line in the marker dict does not do anything. You would need to set mode to markers+lines to get both markers and lines and then use a separate line dict.

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

def scatter3d_wrapper(xyz):

    trace = go.Scatter3d(
        x=xyz[:,0],
        y=xyz[:,1],
        z=xyz[:,2],
        mode = 'markers+lines',
        marker=dict(
            color='rgb(255,0,0)',
            size=12
        ),
        line=dict(
            color='rgb(0, 0, 255)',
            width=10
        )
    )
    return trace

xyz = np.random.random((20, 3))

trace1 = scatter3d_wrapper(xyz)

data = go.Data([trace1])

fig = go.Figure(data=data)
offline.plot(fig, filename='wrapper.html')

answered Feb 8, 2017 at 19:18

Maximilian Peters

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1 Comment

ap21 Over a year ago

So, I need to return the trace (and layout) from the function, instead of trying to plot from inside. Got it! Thanks.

flyingmeatball · Accepted Answer · 2017-02-07 22:34:09Z

0

For matplotlib, you have to run the following before you can see charts:

%matplotlib inline

Try that.

answered Feb 7, 2017 at 22:34

flyingmeatball

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