3DMapFi provides a variety of ways for users to interact with your maps, including mouse and touch events, map controls, and custom interaction logic.

​
Map Events

You can listen for user events such as clicks, mouse movement, and touch gestures.

// Listen for a click event on the map
map.on('click', (event) => {
  console.log('Map clicked at:', event.lngLat);
});

// Listen for mouse move events
map.on('mousemove', (event) => {
  // Show coordinates or highlight features
});

​
Feature Interaction

Interact with specific features on the map, such as highlighting or displaying popups.

// Show a popup when a feature is clicked
map.on('click', 'layer-id', (event) => {
  const coordinates = event.features[0].geometry.coordinates;
  new map.Popup()
    .setLngLat(coordinates)
    .setHTML('<strong>Feature Info</strong>')
    .addTo(map);
});

​
Highlighting Features on Hover

You can visually highlight features as users hover over them by updating layer paint properties.

// Add a highlight layer
map.addLayer({
  id: 'highlight',
  type: 'line',
  source: 'your-source',
  'source-layer': 'your-layer',
  paint: {
    'line-color': '#FFD700',
    'line-width': 4
  },
  filter: ['==', 'id', ''] // Initially no feature is highlighted
});

// Update highlight on mousemove
map.on('mousemove', 'your-layer', (event) => {
  if (event.features.length > 0) {
    map.setFilter('highlight', ['==', 'id', event.features[0].properties.id]);
  }
});

// Reset highlight on mouseleave
map.on('mouseleave', 'your-layer', () => {
  map.setFilter('highlight', ['==', 'id', '']);
});

​
Map Controls

Add built-in controls for navigation, zoom, fullscreen, and more.

// Add navigation controls
map.addControl(new map.NavigationControl());

// Add fullscreen control
map.addControl(new map.FullscreenControl());

​
Geolocation Control

Integrate geolocation to let users find their current position.

// Add geolocate control
map.addControl(new map.GeolocateControl({
  positionOptions: { enableHighAccuracy: true },
  trackUserLocation: true
}));

​
Custom Controls

You can create your own controls to provide custom functionality.

class CustomControl {
  onAdd(map) {
    this._container = document.createElement('div');
    this._container.className = 'custom-control';
    this._container.textContent = 'My Control';
    this._container.onclick = () => alert('Custom control clicked!');
    return this._container;
  }
  onRemove() {
    this._container.parentNode.removeChild(this._container);
  }
}
map.addControl(new CustomControl(), 'top-right');

​
Tooltips and Popups

Display information dynamically as users interact with features.

// Show a tooltip on hover
map.on('mousemove', 'layer-id', (event) => {
  // Update tooltip position and content
});

​
Detailed Popup Example with API Integration

You can fetch and display additional data from an API when a feature is clicked.

map.on('click', 'layer-id', async (event) => {
  const feature = event.features[0];
  const coordinates = feature.geometry.coordinates;
  // Fetch additional info from your API
  const response = await fetch(`/api/feature-info?id=${feature.properties.id}`);
  const data = await response.json();
  new map.Popup()
    .setLngLat(coordinates)
    .setHTML(`<strong>${data.name}</strong><br>${data.description}`)
    .addTo(map);
});

​
Touch and Mobile Interaction

3DMapFi supports touch gestures such as pinch-to-zoom, rotate, and pan for mobile devices.

​
Customizing Touch Behavior

You can enable or disable specific gestures for mobile or kiosk applications.

// Disable map rotation and pitch on touch devices
map.touchZoomRotate.disableRotation();
map.dragRotate.disable();