Crie marcadores para os pontos de referência do trajeto chamando
createWaypointAdvancedMarkers().
Por padrão, o createWaypointAdvancedMarkers() cria marcadores para a rota rotulada como
"A", "B", "C" etc. para cada ponto de parada. Você pode personalizar ainda mais os marcadores transmitindo opções para alterar o estilo com base no índice ou nas propriedades do RouteLeg correspondente.
Confira o código-fonte de exemplo completo
O exemplo de código a seguir mostra como criar marcadores personalizados para pontos de referência de rotas.
TypeScript
let mapPolylines: google.maps.Polyline[] = []; const mapElement = document.querySelector('gmp-map')!; let innerMap: google.maps.Map; // Initialize and add the map. async function init() { // Request the needed libraries. const [{ event }] = await Promise.all([ google.maps.importLibrary('core'), google.maps.importLibrary('maps'), ]); innerMap = mapElement.innerMap; innerMap.setOptions({ mapTypeControl: false, mapId: 'DEMO_MAP_ID', }); // Call the function after the map is loaded. event.addListenerOnce(innerMap, 'idle', () => { void getDirections(); }); } async function getDirections() { // Request the needed libraries. const [{ Route }, { PinElement }] = await Promise.all([ google.maps.importLibrary('routes'), google.maps.importLibrary('marker'), ]); // Define routes request with an intermediate stop. const request: google.maps.routes.ComputeRoutesRequest = { origin: 'Parking lot, Christmas Tree Point Rd, San Francisco, CA 94131', destination: '100 Spinnaker Dr, Sausalito, CA 94965', // We're having a yummy lunch! intermediates: [{ location: '300 Finley Rd San Francisco, CA 94129' }], // But first, we golf! travelMode: 'DRIVING', fields: ['path', 'legs', 'viewport'], }; // Call computeRoutes to get the directions. const result = await Route.computeRoutes(request); if (!result.routes || result.routes.length === 0) { console.warn('No routes found'); return; } // Alter style based on marker index. function markerOptionsMaker( defaultOptions: google.maps.marker.AdvancedMarkerElementOptions, waypointMarkerDetails: google.maps.routes.WaypointMarkerDetails ) { const { index, totalMarkers } = waypointMarkerDetails; // Style the origin waypoint. if (index === 0) { return { ...defaultOptions, title: 'Origin', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'green', borderColor: 'green', scale: 1.5, }), }; } // Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; } // Style the destination waypoint. if (index === totalMarkers - 1) { return { ...defaultOptions, title: 'Destination', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'red', borderColor: 'red', scale: 1.5, }), }; } return { ...defaultOptions, map: innerMap }; } await result.routes[0].createWaypointAdvancedMarkers(markerOptionsMaker); // Fit the map to the route. innerMap.fitBounds(result.routes[0].viewport!); innerMap.setHeading(270); // Create polylines and add them to the map. mapPolylines = result.routes[0].createPolylines(); mapPolylines.forEach((polyline) => { polyline.setMap(innerMap); }); } void init();
JavaScript
let mapPolylines = []; const mapElement = document.querySelector('gmp-map'); let innerMap; // Initialize and add the map. async function init() { // Request the needed libraries. const [{ event }] = await Promise.all([ google.maps.importLibrary('core'), google.maps.importLibrary('maps'), ]); innerMap = mapElement.innerMap; innerMap.setOptions({ mapTypeControl: false, mapId: 'DEMO_MAP_ID', }); // Call the function after the map is loaded. event.addListenerOnce(innerMap, 'idle', () => { void getDirections(); }); } async function getDirections() { // Request the needed libraries. const [{ Route }, { PinElement }] = await Promise.all([ google.maps.importLibrary('routes'), google.maps.importLibrary('marker'), ]); // Define routes request with an intermediate stop. const request = { origin: 'Parking lot, Christmas Tree Point Rd, San Francisco, CA 94131', destination: '100 Spinnaker Dr, Sausalito, CA 94965', // We're having a yummy lunch! intermediates: [{ location: '300 Finley Rd San Francisco, CA 94129' }], // But first, we golf! travelMode: 'DRIVING', fields: ['path', 'legs', 'viewport'], }; // Call computeRoutes to get the directions. const result = await Route.computeRoutes(request); if (!result.routes || result.routes.length === 0) { console.warn('No routes found'); return; } // Alter style based on marker index. function markerOptionsMaker(defaultOptions, waypointMarkerDetails) { const { index, totalMarkers } = waypointMarkerDetails; // Style the origin waypoint. if (index === 0) { return { ...defaultOptions, title: 'Origin', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'green', borderColor: 'green', scale: 1.5, }), }; } // Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; } // Style the destination waypoint. if (index === totalMarkers - 1) { return { ...defaultOptions, title: 'Destination', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'red', borderColor: 'red', scale: 1.5, }), }; } return { ...defaultOptions, map: innerMap }; } await result.routes[0].createWaypointAdvancedMarkers(markerOptionsMaker); // Fit the map to the route. innerMap.fitBounds(result.routes[0].viewport); innerMap.setHeading(270); // Create polylines and add them to the map. mapPolylines = result.routes[0].createPolylines(); mapPolylines.forEach((polyline) => { polyline.setMap(innerMap); }); } void init();
CSS
/* * Always set the map height explicitly to define the size of the div element * that contains the map. */ #map { height: 100%; } /* * Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; }
HTML
<html>
<head>
<title>Get directions</title>
<link rel="stylesheet" type="text/css" href="./style.css" />
<script type="module" src="./index.js"></script>
<script>
// prettier-ignore
(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({
key: "GOOGLE_MAPS_API_KEY"
});
</script>
</head>
<body>
<gmp-map center="37.447646, -122.113878" zoom="12"></gmp-map>
</body>
</html>Adicionar marcadores padrão
Para adicionar marcadores usando o estilo padrão, chame createWaypointAdvancedMarkers()
transmitindo uma opção de marcador para especificar o mapa atual, conforme mostrado no snippet de código a seguir.
// Create markers using default style. const markers = await result.routes[0].createWaypointAdvancedMarkers({ map: innerMap });
Adicionar marcadores com um estilo personalizado
Para adicionar marcadores usando um estilo personalizado, chame createWaypointAdvancedMarkers()
transmitindo opções de marcador que incluem propriedades de estilo personalizadas. Quando você aplica estilos assim, todos os marcadores são estilizados da mesma forma. O snippet de código a seguir mostra como criar marcadores
com um estilo personalizado.
// Create markers with a custom style. const markerOptions = { map: innerMap, content: new PinElement({ scale: 1.5, background: '#8C0DD1', borderColor: '#6D0AA5', glyphColor: '#6D0AA5', }).element } const markers = await result.routes[0].createWaypointAdvancedMarkers(markerOptions);
Aplicar um estilo personalizado a marcadores individuais
Para aplicar um estilo personalizado a marcadores individuais, transmita uma função para createWaypointAdvancedMarkers()
e defina as opções de estilo com base no índice do marcador ou nas propriedades RouteLeg.
O snippet de código a seguir mostra uma função para criar marcadores e estilizar com base no
índice do marcador:
TypeScript
// Alter style based on marker index. function markerOptionsMaker( defaultOptions: google.maps.marker.AdvancedMarkerElementOptions, waypointMarkerDetails: google.maps.routes.WaypointMarkerDetails ) { const { index, totalMarkers } = waypointMarkerDetails; // Style the origin waypoint. if (index === 0) { return { ...defaultOptions, title: 'Origin', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'green', borderColor: 'green', scale: 1.5, }), }; } // Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; } // Style the destination waypoint. if (index === totalMarkers - 1) { return { ...defaultOptions, title: 'Destination', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'red', borderColor: 'red', scale: 1.5, }), }; } return { ...defaultOptions, map: innerMap }; } await result.routes[0].createWaypointAdvancedMarkers(markerOptionsMaker);
JavaScript
// Alter style based on marker index. function markerOptionsMaker(defaultOptions, waypointMarkerDetails) { const { index, totalMarkers } = waypointMarkerDetails; // Style the origin waypoint. if (index === 0) { return { ...defaultOptions, title: 'Origin', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'green', borderColor: 'green', scale: 1.5, }), }; } // Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; } // Style the destination waypoint. if (index === totalMarkers - 1) { return { ...defaultOptions, title: 'Destination', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'red', borderColor: 'red', scale: 1.5, }), }; } return { ...defaultOptions, map: innerMap }; } await result.routes[0].createWaypointAdvancedMarkers(markerOptionsMaker);
Tornar os marcadores acessíveis
É possível melhorar a acessibilidade dos marcadores das seguintes maneiras:
- Forneça um título:defina a propriedade
titlenas opções do marcador para fornecer um rótulo para ele. Esse rótulo é usado por leitores de tela e tecnologias assistivas. - Distinguir pontos de parada intermediários:ao transmitir uma função de estilo para
createWaypointAdvancedMarkers(), use os parâmetrosindexetotalMarkersdeWaypointMarkerDetailspara atribuir títulos e rótulos únicos e descritivos a pontos de parada intermediários (por exemplo,Waypoint ${(index + 1).toString()}) para que os usuários de leitores de tela possam diferenciá-los da origem e do destino. - Ativar a navegação pelo teclado e eventos de clique:defina
gmpClickable: truenas opções de marcador para que os marcadores interativos possam ser focados com o teclado (usando as teclas Tab e de seta) e responder a entradas de teclado e mouse. - Aumentar o tamanho do marcador:defina a propriedade
scaleemPinElement(por exemplo,scale: 1.5) para reduzir a precisão necessária para interagir com marcadores, principalmente em dispositivos sensíveis ao toque. Os marcadores padrão atendem ao padrão de tamanho mínimo de WCAG AA, e aumentar a escala ajuda a atender ao padrão de tamanho da área de WCAG AAA. - Mantenha o contraste de cores:ao personalizar as cores
PinElement, escolha valoresglyphColorebackgroundcom contraste suficiente para que os rótulos dos pontos de referência permaneçam legíveis.
O snippet de código a seguir mostra como estilizar um marcador para acessibilidade. Ele tem um
title para fornecer um rótulo aos leitores de tela. O título usa o índice para
distinguir os pontos de referência intermediários. A propriedade gmpClickable é definida como true para ativar a navegação pelo teclado e eventos de clique, e scale foi aumentado para facilitar a interação com os marcadores.
TypeScript
// Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; }
JavaScript
// Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; }
Para mais detalhes, consulte Tornar os marcadores clicáveis e acessíveis.
Confira o exemplo completo
TypeScript
let mapPolylines: google.maps.Polyline[] = []; const mapElement = document.querySelector('gmp-map')!; let innerMap: google.maps.Map; // Initialize and add the map. async function init() { // Request the needed libraries. const [{ event }] = await Promise.all([ google.maps.importLibrary('core'), google.maps.importLibrary('maps'), ]); innerMap = mapElement.innerMap; innerMap.setOptions({ mapTypeControl: false, mapId: 'DEMO_MAP_ID', }); // Call the function after the map is loaded. event.addListenerOnce(innerMap, 'idle', () => { void getDirections(); }); } async function getDirections() { // Request the needed libraries. const [{ Route }, { PinElement }] = await Promise.all([ google.maps.importLibrary('routes'), google.maps.importLibrary('marker'), ]); // Define routes request with an intermediate stop. const request: google.maps.routes.ComputeRoutesRequest = { origin: 'Parking lot, Christmas Tree Point Rd, San Francisco, CA 94131', destination: '100 Spinnaker Dr, Sausalito, CA 94965', // We're having a yummy lunch! intermediates: [{ location: '300 Finley Rd San Francisco, CA 94129' }], // But first, we golf! travelMode: 'DRIVING', fields: ['path', 'legs', 'viewport'], }; // Call computeRoutes to get the directions. const result = await Route.computeRoutes(request); if (!result.routes || result.routes.length === 0) { console.warn('No routes found'); return; } // Alter style based on marker index. function markerOptionsMaker( defaultOptions: google.maps.marker.AdvancedMarkerElementOptions, waypointMarkerDetails: google.maps.routes.WaypointMarkerDetails ) { const { index, totalMarkers } = waypointMarkerDetails; // Style the origin waypoint. if (index === 0) { return { ...defaultOptions, title: 'Origin', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'green', borderColor: 'green', scale: 1.5, }), }; } // Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; } // Style the destination waypoint. if (index === totalMarkers - 1) { return { ...defaultOptions, title: 'Destination', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'red', borderColor: 'red', scale: 1.5, }), }; } return { ...defaultOptions, map: innerMap }; } await result.routes[0].createWaypointAdvancedMarkers(markerOptionsMaker); // Fit the map to the route. innerMap.fitBounds(result.routes[0].viewport!); innerMap.setHeading(270); // Create polylines and add them to the map. mapPolylines = result.routes[0].createPolylines(); mapPolylines.forEach((polyline) => { polyline.setMap(innerMap); }); } void init();
JavaScript
let mapPolylines = []; const mapElement = document.querySelector('gmp-map'); let innerMap; // Initialize and add the map. async function init() { // Request the needed libraries. const [{ event }] = await Promise.all([ google.maps.importLibrary('core'), google.maps.importLibrary('maps'), ]); innerMap = mapElement.innerMap; innerMap.setOptions({ mapTypeControl: false, mapId: 'DEMO_MAP_ID', }); // Call the function after the map is loaded. event.addListenerOnce(innerMap, 'idle', () => { void getDirections(); }); } async function getDirections() { // Request the needed libraries. const [{ Route }, { PinElement }] = await Promise.all([ google.maps.importLibrary('routes'), google.maps.importLibrary('marker'), ]); // Define routes request with an intermediate stop. const request = { origin: 'Parking lot, Christmas Tree Point Rd, San Francisco, CA 94131', destination: '100 Spinnaker Dr, Sausalito, CA 94965', // We're having a yummy lunch! intermediates: [{ location: '300 Finley Rd San Francisco, CA 94129' }], // But first, we golf! travelMode: 'DRIVING', fields: ['path', 'legs', 'viewport'], }; // Call computeRoutes to get the directions. const result = await Route.computeRoutes(request); if (!result.routes || result.routes.length === 0) { console.warn('No routes found'); return; } // Alter style based on marker index. function markerOptionsMaker(defaultOptions, waypointMarkerDetails) { const { index, totalMarkers } = waypointMarkerDetails; // Style the origin waypoint. if (index === 0) { return { ...defaultOptions, title: 'Origin', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'green', borderColor: 'green', scale: 1.5, }), }; } // Style all intermediate waypoints. if (!(index === 0 || index === totalMarkers - 1)) { return { ...defaultOptions, title: `Waypoint ${(index + 1).toString()}`, // Provide label for screenreaders map: innerMap, gmpClickable: true, // Make marker focusable and allow keyboard navigation content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'blue', borderColor: 'blue', scale: 1.5, // Increase size for better visibilty }), }; } // Style the destination waypoint. if (index === totalMarkers - 1) { return { ...defaultOptions, title: 'Destination', map: innerMap, gmpClickable: true, content: new PinElement({ glyphText: (index + 1).toString(), glyphColor: 'white', background: 'red', borderColor: 'red', scale: 1.5, }), }; } return { ...defaultOptions, map: innerMap }; } await result.routes[0].createWaypointAdvancedMarkers(markerOptionsMaker); // Fit the map to the route. innerMap.fitBounds(result.routes[0].viewport); innerMap.setHeading(270); // Create polylines and add them to the map. mapPolylines = result.routes[0].createPolylines(); mapPolylines.forEach((polyline) => { polyline.setMap(innerMap); }); } void init();
CSS
/* * Always set the map height explicitly to define the size of the div element * that contains the map. */ #map { height: 100%; } /* * Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; }
HTML
<html>
<head>
<title>Get directions</title>
<link rel="stylesheet" type="text/css" href="./style.css" />
<script type="module" src="./index.js"></script>
<script>
// prettier-ignore
(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({
key: "GOOGLE_MAPS_API_KEY"
});
</script>
</head>
<body>
<gmp-map center="37.447646, -122.113878" zoom="12"></gmp-map>
</body>
</html>