Getting started (1)Display a mapStyles (11)Add an animated icon to the mapAdd a default markerGenerate and add a missing icon to the mapAdd a generated icon to the mapAdd an icon to the mapAdd a stretchable image to the mapDisplay a map with a custom styleRender world copiesChange a map's styleDisplay a mapDisplay a satellite mapLayers (40)Display buildings in 3DAdd a 3D modelExtrude polygons for 3D indoor mappingAdd an animated icon to the mapGenerate and add a missing icon to the mapAdd a generated icon to the mapAdd an icon to the mapAdd a stretchable image to the mapAdjust a layer's opacityAnimate a lineAnimate a series of imagesAnimate a pointChange building color based on zoom levelChange the case of labelsDisplay HTML clusters with custom propertiesCreate and style clustersChange a layer's color with buttonsAdd a custom style layerStyle lines with a data-driven propertyStyle circles with a data-driven propertyDisplay and style rich text labelsUse a fallback imageAdd a pattern to a polygonAdd a GeoJSON lineAdd a new layer below labelsDraw GeoJSON pointsAdd a GeoJSON polygonCreate a heatmap layerAdd hillshadingAdd an imageDisplay line that crosses 180th meridianCreate a gradient line using an expressionAdd multiple geometries from one GeoJSON sourceStyle ocean depth dataShow and hide layersChange worldview of administrative boundariesUpdate a choropleth layer by zoom levelVariable label placementAdd a videoVisualize population densitySources (16)Animate a lineAnimate a series of imagesAnimate a pointAdd a canvas sourceJoin local JSON data with vector tile geometriesAdd hillshadingAdd an imageDisplay line that crosses 180th meridianAdd live realtime dataUpdate a feature in realtimeAdd a raster tile sourceAdd a third party vector tile sourceCreate a time sliderAdd a vector tile sourceAdd a videoAdd a WMS sourceUser interaction (27)Adjust a layer's opacityCustomize camera animationsCenter the map on a clicked symbolChange a layer's color with buttonsAnimate 3D buildings based on ambient soundsDisable map rotationCreate a draggable MarkerFilter features within map viewFilter symbols by toggling a listFilter symbols by text inputCreate a hover effectDisplay a non-interactive mapChange a map's languageMeasure distancesGet coordinates of the mouse pointerHighlight features containing similar dataSelect features around a clicked pointGet features under the mouse pointerRestrict map panning to an areaChange a map's styleCreate a time sliderToggle interactionsChange worldview of administrative boundariesUpdate a choropleth layer by zoom levelHighlight features within a bounding boxFit to the bounds of a LineStringCreate a draggable pointCamera (13)Animate map camera around a pointAnimate a point along a routeCustomize camera animationsCenter the map on a clicked symbolSlowly fly to a locationFit a map to a bounding boxFly to a locationNavigate the map with game-like controlsJump to a series of locationsPlay map locations as a slideshowOffset the vanishing point using paddingFly to a location based on scroll positionSet pitch and bearingControls and overlays (17)Animate a markerChange the default position for attributionAdd custom icons with MarkersDisable scroll zoomView a fullscreen mapLocate the userSwipe between mapsDisplay driving directionsShow drawn polygon areaAdd a geocoderAdd a marker using a place nameDisplay map navigation controlsShow polygon information on clickDisplay a popup on clickDisplay a popup on hoverDisplay a popupAttach a popup to a marker instanceGeocoder (10)Supplement forward geocoding search results from another data sourceAccept coordinates as input to a geocoderUse a custom render function with a geocoderLimit geocoder results to a named regionUse the geocoder without a mapPlace the geocoder input outside the mapUse a custom camera animation with a geocoderLocalize the geocoder to a given languageAdd a geocoderSet a point after Geocoder resultBrowser support (1)Check if Mapbox GL JS is supportedInternationalization support (2)Use locally generated ideographsAdd support for right-to-left scripts

Display a popup on hover

When a user hovers over a custom marker, show a Popup containing more information.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Display a popup on hover</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.js"></script>
<link href="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.css" rel="stylesheet" />
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
.mapboxgl-popup {
max-width: 400px;
font: 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
}
</style>
<div id="map"></div>
<script>
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = '<your access token here>';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/streets-v11',
center: [-77.04, 38.907],
zoom: 11.15
});
map.on('load', function () {
map.loadImage(
'https://docs.mapbox.com/mapbox-gl-js/assets/custom_marker.png',
// Add an image to use as a custom marker
function (error, image) {
if (error) throw error;
map.addImage('custom-marker', image);
map.addSource('places', {
'type': 'geojson',
'data': {
'type': 'FeatureCollection',
'features': [
{
'type': 'Feature',
'properties': {
'description':
'<strong>Make it Mount Pleasant</strong><p>Make it Mount Pleasant is a handmade and vintage market and afternoon of live entertainment and kids activities. 12:00-6:00 p.m.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.038659, 38.931567]
}
},
{
'type': 'Feature',
'properties': {
'description':
'<strong>Mad Men Season Five Finale Watch Party</strong><p>Head to Lounge 201 (201 Massachusetts Avenue NE) Sunday for a Mad Men Season Five Finale Watch Party, complete with 60s costume contest, Mad Men trivia, and retro food and drink. 8:00-11:00 p.m. $10 general admission, $20 admission and two hour open bar.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.003168, 38.894651]
}
},
{
'type': 'Feature',
'properties': {
'description':
'<strong>Big Backyard Beach Bash and Wine Fest</strong><p>EatBar (2761 Washington Boulevard Arlington VA) is throwing a Big Backyard Beach Bash and Wine Fest on Saturday, serving up conch fritters, fish tacos and crab sliders, and Red Apron hot dogs. 12:00-3:00 p.m. $25.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.090372, 38.881189]
}
},
{
'type': 'Feature',
'properties': {
'description':
'<strong>Ballston Arts & Crafts Market</strong><p>The Ballston Arts & Crafts Market sets up shop next to the Ballston metro this Saturday for the first of five dates this summer. Nearly 35 artists and crafters will be on hand selling their wares. 10:00-4:00 p.m.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.111561, 38.882342]
}
},
{
'type': 'Feature',
'properties': {
'description':
"<strong>Seersucker Bike Ride and Social</strong><p>Feeling dandy? Get fancy, grab your bike, and take part in this year's Seersucker Social bike ride from Dandies and Quaintrelles. After the ride enjoy a lawn party at Hillwood with jazz, cocktails, paper hat-making, and more. 11:00-7:00 p.m.</p>"
},
'geometry': {
'type': 'Point',
'coordinates': [-77.052477, 38.943951]
}
},
{
'type': 'Feature',
'properties': {
'description':
'<strong>Capital Pride Parade</strong><p>The annual Capital Pride Parade makes its way through Dupont this Saturday. 4:30 p.m. Free.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.043444, 38.909664]
}
},
{
'type': 'Feature',
'properties': {
'description':
'<strong>Muhsinah</strong><p>Jazz-influenced hip hop artist Muhsinah plays the Black Cat (1811 14th Street NW) tonight with Exit Clov and Gods’illa. 9:00 p.m. $12.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.031706, 38.914581]
}
},
{
'type': 'Feature',
'properties': {
'description':
"<strong>A Little Night Music</strong><p>The Arlington Players' production of Stephen Sondheim's <em>A Little Night Music</em> comes to the Kogod Cradle at The Mead Center for American Theater (1101 6th Street SW) this weekend and next. 8:00 p.m.</p>"
},
'geometry': {
'type': 'Point',
'coordinates': [-77.020945, 38.878241]
}
},
{
'type': 'Feature',
'properties': {
'description':
'<strong>Truckeroo</strong><p>Truckeroo brings dozens of food trucks, live music, and games to half and M Street SE (across from Navy Yard Metro Station) today from 11:00 a.m. to 11:00 p.m.</p>'
},
'geometry': {
'type': 'Point',
'coordinates': [-77.007481, 38.876516]
}
}
]
}
});
// Add a layer showing the places.
map.addLayer({
'id': 'places',
'type': 'symbol',
'source': 'places',
'layout': {
'icon-image': 'custom-marker',
'icon-allow-overlap': true
}
});
}
);
// Create a popup, but don't add it to the map yet.
var popup = new mapboxgl.Popup({
closeButton: false,
closeOnClick: false
});
map.on('mouseenter', 'places', function (e) {
// Change the cursor style as a UI indicator.
map.getCanvas().style.cursor = 'pointer';
var coordinates = e.features[0].geometry.coordinates.slice();
var description = e.features[0].properties.description;
// Ensure that if the map is zoomed out such that multiple
// copies of the feature are visible, the popup appears
// over the copy being pointed to.
while (Math.abs(e.lngLat.lng - coordinates[0]) > 180) {
coordinates[0] += e.lngLat.lng > coordinates[0] ? 360 : -360;
}
// Populate the popup and set its coordinates
// based on the feature found.
popup.setLngLat(coordinates).setHTML(description).addTo(map);
});
map.on('mouseleave', 'places', function () {
map.getCanvas().style.cursor = '';
popup.remove();
});
});
</script>
</body>
</html>
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