Custom hover info of gv.Points

GeoViews
#1

Hi! I’m trying to code similar map to this one GeoViews Gallery - world population and I have two questions. It would be nice to see your tips or solutions:

  1. How to hide Latitude and Longitude in hover window of each point?

    image
    image671×601 93.9 KB

  2. Is there any method to customize the hover window (e.g. colors, fonts)?

The code of the example map:

import pandas as pd
import geoviews as gv
from geoviews import dim

gv.extension('bokeh')


cities = pd.read_csv('../../assets/cities.csv', encoding="ISO-8859-1")
population = gv.Dataset(cities, kdims=['City', 'Country', 'Year'])
points = population.to(gv.Points, ['Longitude', 'Latitude'], ['Population', 'City', 'Country'])

tiles = gv.tile_sources.Wikipedia

tiles * points.opts(
    color='Population', cmap='viridis', size=dim('Population')*0.000001,
    tools=['hover'], global_extent=True, width=600, height=600)
3 Likes
#2

See Configuring plot tools — Bokeh 2.4.2 Documentation, then once you have a bokeh hover_tool = HoverTool(...) object instantiated, pass in with
tools=[hover_tool]

3 Likes
#3

Thanks a lot! It works good.