Is there a way to create a Dynamic Layout Based on user input?

Panel
1

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Episki on Twitter: “Hi @Panel_org @MarcSkovMadsen, is there a way to create a dynamic layout depending on the user input? Example: “+”/”-" buttons to add/remove a new graph dynamically." / Twitter

2

Sure.

You can use list like layouts like pane.Column, panel.Row, panel.Accordion, panel.Tabs etc.

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or use the layout properties of matplotlib, bokeh, holoviews, plotly and update the Panel pane panel.pane.Matplotlib, panel.pane.Bokeh, panel.pane.HoloViews, panel.pane.Plotly etc when the object changes.

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3

Here is a Layout Example

import numpy as np
import pandas as pd
import panel as pn
pn.extension(sizing_mode="stretch_width")
pd.options.plotting.backend = "holoviews"


def new_plot():
    ts = pd.Series(np.random.randn(1000), index=pd.date_range("1/1/2000", periods=1000))
    ts = ts.cumsum()
    return ts.plot(title="Plot", height=400, color="#A01346", line_width=5)


# Accordion, Column, Row, Tabs, WidgetBox
container = pn.Column()

def add_plot(*events):
    container.append(new_plot())
add_plot()

add_plot_button = pn.widgets.Button(name="ADD PLOT", button_type="primary")
add_plot_button.on_click(add_plot)

def remove_plot(*events):
    if len(container)>0:
        container.pop(len(container)-1)

remove_plot_button = pn.widgets.Button(name="REMOVE PLOT", button_type="success")
remove_plot_button.on_click(remove_plot)


pn.template.FastListTemplate(
    title="Dynamic Layouts with Panel",
    sidebar = [add_plot_button, remove_plot_button],
    main=[container,]
).servable()
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