Creating a Google Map with Custom Markers

This function creates a Google map and adds markers at specified locations.

Technology Stack : Bokeh, GMapOptions, GMapWidget, Circle

Code Type : Bokeh visualization

Code Difficulty : Intermediate

                
                    
import random
from bokeh.plotting import figure, show
from bokeh.models import Circle, GMapOptions, GMapWidget
from bokeh.layouts import row

def create_map_with_markers(lat, lng, zoom, markers):
    """
    Create a Google Map with specified latitude, longitude, zoom level, and markers.
    """
    # Create a figure for the map
    p = figure(title="Google Map with Markers", tools="pan,wheel_zoom,box_zoom,reset", plot_width=800, plot_height=600)

    # Set the map options
    gmap_options = GMapOptions(lat=lat, lng=lng, zoom=zoom)

    # Add the GMapWidget to the figure
    gmap_widget = GMapWidget(map_options=gmap_options)
    p.add_layout(gmap_widget)

    # Add markers to the map
    for marker in markers:
        lat, lng, label = marker
        circle = Circle(x=lng, y=lat, size=10, fill_color="red", line_color=None)
        p.add_layout(circle, 'below')
        p.add_layout(label, 'below')

    # Display the map
    show(p)

# Example usage
markers = [(34.0522, -118.2437, "Los Angeles"), (40.7128, -74.0060, "New York")]
create_map_with_markers(37.7749, -122.4194, 10, markers)