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petar-qb/

vizro-graph-parameter-interaction

Exploring Iris Dataset with Vizro

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  • assets/
  • app.py
  • requirements.txt
app.py
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"""Dev app to try things out."""
import pandas as pd
from dash import callback, html, Input, Output, no_update

import vizro.models as vm
import vizro.plotly.express as px
from vizro import Vizro
from vizro.models.types import capture

iris = px.data.iris()


@capture("figure")
def custom_figure(data_frame, material):
    return html.P(f"Material: {material}"),


page = vm.Page(
    title="My Page Title",
    components=[
        vm.Graph(
            id="scatter_chart",
            title="My Graph",
            figure=px.scatter(
                data_frame=iris,
                x="sepal_width",
                y="sepal_length",
                color="species",
                custom_data=["species"],
            )
        ),
        vm.Figure(
            id="figure_id",
            figure=custom_figure(
                data_frame=iris,
                material="species",
            )
        )
    ],
    controls=[
        vm.Filter(column="species"),
        vm.Parameter(
            targets=["figure_id.material"],
            selector=vm.RadioItems(
                id="parameter_id",
                options=["setosa", "versicolor", "virginica"],
                value="setosa",
            )
        )
    ]
)


@callback(
    Output("parameter_id", "value"),
    Input("scatter_chart", "clickData"),
)
def update_parameter(graph_click_data):
    if graph_click_data is None:
        return no_update
    return graph_click_data["points"][0]["customdata"][0]


dashboard = vm.Dashboard(pages=[page])


Vizro().build(dashboard).run(debug=False)