function-calling/world_map_llm_func_openai_with_cities.html

Below is a sample HTML template incorporating Google Maps to place markers on the provided locations for a Ray meetup in San Francisco, New York, and London. To use Google Maps in your HTML, you'll need an API key from the Google Cloud Platform.

```html
<!DOCTYPE html>
<html>
<head>
    <title>Ray Meetup Locations</title>
    <style>
        /* Set the size of the map */
        #map {
            height: 80%;
            width: 100%;
        }
        /* Style the page */
        html, body {
            height: 100%;
            margin: 0;
            padding: 0;
        }
    </style>
</head>
<body>
    <h1>Ray Meetup Coordinates</h1>
    <div id="map"></div>
    <script>
        // Function to initialize and add the map
        function initMap() {
            // Map options
            var options = {
                zoom: 2,
                center: { lat: 40.7128, lng: -74.006 } // Centering the map roughly between the locations
            };
            // New map
            var map = new google.maps.Map(document.getElementById('map'), options);

            // Add markers to the map
            var markers = [
                {
                    coords: {lat: 37.7749, lng: -122.4194},
                    content: '<h3>Ray Meetup - San Francisco</h3>'
                },
                {
                    coords: {lat: 40.7128, lng: -74.006},
                    content: '<h3>Ray Meetup - New York</h3>'
                },
                {
                    coords: {lat: 51.5074, lng: -0.1276},
                    content: '<h3>Ray Meetup - London</h3>'
                },
            ];

            // Loop through markers
            for(var i = 0; i < markers.length; i++){
                addMarker(markers[i]);
            }

            // Add Marker function
            function addMarker(props) {
                var marker = new google.maps.Marker({
                    position: props.coords,
                    map: map,
                });

                // Check for custom icon
                if(props.iconImage){
                    // Set icon image
                    marker.setIcon(props.iconImage);
                }

                // Check for content
                if(props.content){
                    var infoWindow = new google.maps.InfoWindow({
                        content: props.content
                    });

                    marker.addListener('click', function() {
                        infoWindow.open(map, marker);
                    });
                }
            }
        }
    </script>
    <script async defer
        src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
        //Replace 'YOUR_API_KEY' with your actual Google Maps API key
    </script>
</body>
</html>
```

Please make sure to replace `'YOUR_API_KEY'` with your actual Google Maps API key in the script tag source URL. Without a valid API key, the map will not display correctly.

This HTML document creates a map with zoom settings that should show all three cities on a global scale. Each city has a marker with a popup window containing the name of the city and the event hosted there.