FS2023-dashboard-design/dashboard3/main.py

41 lines
1.8 KiB
Python

import math
from dash import Dash, dcc, html, Input, Output
import plotly.express as px
import numpy as np
import pandas as pd
import dash_bootstrap_components as dbc
# new: plotly template="plotly_white", https://plotly.com/python/templates/
app = Dash(__name__, external_stylesheets=[dbc.themes.BOOTSTRAP])
df = pd.DataFrame({'y': np.random.normal(loc=0, scale=10, size=1000), 'x': np.random.normal(loc=10, scale=2, size=1000)})
app.layout = html.Div([html.Div([html.H1("Dashboard 3")], className="header"), html.Div([dcc.Tabs(id="tabs", children=[
dcc.Tab(label='Tab One', id="tab_1_graphs", children=[html.Div([
dbc.Row([dbc.Col([dcc.Dropdown(options=['red','green','blue'], value='red', id='color', multi=False)], width=6),
dbc.Col([dcc.Slider(min=math.floor(df['y'].min()),max=math.ceil(df['y'].max()),id="min_value")], width=6)]),
dbc.Row([dbc.Col([dcc.Graph(id="graph_1")],width=6),
dbc.Col([dcc.Graph(id="graph_2")],width=6)])], className="tab_content"),]),
dcc.Tab(label='Tab Two', id="tab_2_graphs",children=[html.Div([],className="tab_content")]),])], className="content")])
@app.callback(Output("graph_1", "figure"), Input("color", "value"))
def update_graph_1(dropdown_value_color):
fig = px.histogram(df, x="y", color_discrete_sequence=[dropdown_value_color])
fig.update_layout(template="plotly_white")
return fig
@app.callback(Output("graph_2", "figure"),Input("min_value", "value"))
def update_graph_2(min_value):
if min_value:
dff = df[df['y'] > min_value]
else:
dff = df
fig = px.scatter(dff, x='x', y='y')
fig.update_layout(template="plotly_white")
return fig
if __name__ == '__main__':
app.run_server(debug=True, port=8000)