deckgl_get_color.py

import streamlit as st
import pandas as pd
import numpy as np

# Step 1: CREATE A MAP DATAFRAME WITH red green AND blue COLUMNS

sf_lat, sf_lon = [37.76, -122.4]
radius = 50
df = pd.DataFrame(
    np.random.randn(1000, 2) / [radius, radius] + [sf_lat, sf_lon],
    columns=['lat', 'lon'])
lat_min, lat_max = df.lat.min(), df.lat.max()
lon_min, lon_max = df.lon.min(), df.lon.max()
df['red'] = 255.0 * (df.lat - lat_min) / (lat_max - lat_min)
df['green'] = 128.0
df['blue'] = 255.0 * (df.lon - lon_min) / (lon_max - lon_min)

# Step 2: DISPLAY IT IN DECKGL
st.write(df)
st.deck_gl_chart(
    viewport={
        'latitude': sf_lat,
        'longitude': sf_lon,
        'zoom': 11,
        'pitch': 0,
    },
    layers=[
    {
        'type': 'ScatterplotLayer',
        'data': df,
        'getColorR': 'red',
        'getColorG': 'green',
        'getColorB': 'blue',
    }])