"""
H3HexagonLayer
==============
Plot of values for a particular hex ID in the H3 geohashing scheme.
This example is adapted from the deck.gl documentation.
"""
import pydeck as pdk
import pandas as pd
H3_HEX_DATA = "https://raw.githubusercontent.com/visgl/deck.gl-data/master/website/sf.h3cells.json"
df = pd.read_json(H3_HEX_DATA)
# Define a layer to display on a map
layer = pdk.Layer(
"H3HexagonLayer",
df,
pickable=True,
stroked=True,
filled=True,
extruded=False,
get_hexagon="hex",
get_fill_color="[255 - count, 255, count]",
get_line_color=[255, 255, 255],
line_width_min_pixels=2,
)
# Set the viewport location
view_state = pdk.ViewState(latitude=37.7749295, longitude=-122.4194155, zoom=14, bearing=0, pitch=30)
# Render
r = pdk.Deck(layers=[layer], initial_view_state=view_state, tooltip={"text": "Count: {count}"})
r.to_html("h3_hexagon_layer.html")