Example: Opacity slider

[banesullivan]

I had this example lying around and figured I'd post it -- I don't think I'll put this in the docs anywhere

from localtileserver import get_leaflet_tile_layer, TileClient
from ipyleaflet import Map
import ipywidgets as widgets

# Create a TileClient from a raster file
client = TileClient("path/to/geo.tif")

# Create ipyleaflet TileLayer from that server
t = get_leaflet_tile_layer(client)
# Create ipyleaflet map, add tile layer, and display
m = Map(center=client.center(), zoom=client.default_zoom)
m.add_layer(t)
m

slider = widgets.FloatSlider(
    value=1.0,
    min=0,
    max=1.0,
    step=0.1,
    description="Opactiy:",
    continuous_update=True,
)


def update_opacity(change):
    t.opacity = change["new"]


slider.observe(update_opacity, "value")
slider