Personalização básica de marcadores

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Confira o código-fonte de exemplo completo

Este exemplo mostra como personalizar marcadores das seguintes maneiras: adicionar texto de título, dimensionar o marcador, mudar a cor de fundo, mudar a cor da borda, mudar a cor do glifo e ocultar o glifo.

TypeScript

const parser = new DOMParser();

async function initMap() {
    // Request needed libraries.
    const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
    const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

    const map = new Map(document.getElementById('map') as HTMLElement, {
        center: { lat: 37.419, lng: -122.02 },
        zoom: 14,
        mapId: '4504f8b37365c3d0',
    });

    // Each PinElement is paired with a MarkerView to demonstrate setting each parameter.

    // Default marker with title text (no PinElement).
    const markerViewWithText = new AdvancedMarkerElement({
        map,
        position: { lat: 37.419, lng: -122.03 },
        title: 'Title text for the marker at lat: 37.419, lng: -122.03',
    });

    // Adjust the scale.
    const pinScaled = new PinElement({
        scale: 1.5,
    });
    const markerViewScaled = new AdvancedMarkerElement({
        map,
        position: { lat: 37.419, lng: -122.02 },
        content: pinScaled.element,
    });

    // Change the background color.
    const pinBackground = new PinElement({
        background: '#FBBC04',
    });
    const markerViewBackground = new AdvancedMarkerElement({
        map,
        position: { lat: 37.419, lng: -122.01 },
        content: pinBackground.element,
    });

    // Change the border color.
    const pinBorder = new PinElement({
        borderColor: '#137333',
    });
    const markerViewBorder = new AdvancedMarkerElement({
        map,
        position: { lat: 37.415, lng: -122.035 },
        content: pinBorder.element,
    });

    // Change the glyph color.
    const pinGlyph = new PinElement({
        glyphColor: 'white',
    });
    const markerViewGlyph = new AdvancedMarkerElement({
        map,
        position: { lat: 37.415, lng: -122.025 },
        content: pinGlyph.element,
    });

    const pinTextGlyph = new PinElement({
        glyph: 'T',
        glyphColor: 'white',
    });
    const markerViewGlyphText = new AdvancedMarkerElement({
        map,
        position: { lat: 37.415, lng: -122.015 },
        content: pinTextGlyph.element,
    });

    // Hide the glyph.
    const pinNoGlyph = new PinElement({
        glyph: '',
    });
    const markerViewNoGlyph = new AdvancedMarkerElement({
        map,
        position: { lat: 37.415, lng: -122.005 },
        content: pinNoGlyph.element,
    });

}

initMap();
index.ts

JavaScript

const parser = new DOMParser();

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary(
    "marker",
  );
  const map = new Map(document.getElementById("map"), {
    center: { lat: 37.419, lng: -122.02 },
    zoom: 14,
    mapId: "4504f8b37365c3d0",
  });
  // Each PinElement is paired with a MarkerView to demonstrate setting each parameter.
  // Default marker with title text (no PinElement).
  const markerViewWithText = new AdvancedMarkerElement({
    map,
    position: { lat: 37.419, lng: -122.03 },
    title: "Title text for the marker at lat: 37.419, lng: -122.03",
  });
  // Adjust the scale.
  const pinScaled = new PinElement({
    scale: 1.5,
  });
  const markerViewScaled = new AdvancedMarkerElement({
    map,
    position: { lat: 37.419, lng: -122.02 },
    content: pinScaled.element,
  });
  // Change the background color.
  const pinBackground = new PinElement({
    background: "#FBBC04",
  });
  const markerViewBackground = new AdvancedMarkerElement({
    map,
    position: { lat: 37.419, lng: -122.01 },
    content: pinBackground.element,
  });
  // Change the border color.
  const pinBorder = new PinElement({
    borderColor: "#137333",
  });
  const markerViewBorder = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.035 },
    content: pinBorder.element,
  });
  // Change the glyph color.
  const pinGlyph = new PinElement({
    glyphColor: "white",
  });
  const markerViewGlyph = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.025 },
    content: pinGlyph.element,
  });
  const pinTextGlyph = new PinElement({
    glyph: "T",
    glyphColor: "white",
  });
  const markerViewGlyphText = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.015 },
    content: pinTextGlyph.element,
  });
  // Hide the glyph.
  const pinNoGlyph = new PinElement({
    glyph: "",
  });
  const markerViewNoGlyph = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.005 },
    content: pinNoGlyph.element,
  });
}

initMap();
index.js

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;
}

style.css

HTML

<html>
  <head>
    <title>Advanced Marker Basic Customization</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="map"></div>

    <!-- prettier-ignore -->
    <script>(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: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "weekly"});</script>
  </body>
</html>
index.html

Testar amostra

Os Marcadores Avançados usam duas classes para definir marcadores: a classe AdvancedMarkerElement fornece os parâmetros básicos (position, title e map), e a classe PinElement contém opções para mais personalização.

Para adicionar marcadores a um mapa, primeiro é necessário carregar a biblioteca marker, que fornece as classes AdvancedMarkerElement e PinElement.

O snippet a seguir mostra o código para criar um novo PinElement e aplicá-lo a um marcador.

// Create a pin element.
const pin = new PinElement({
    scale: 1.5,
});
// Create a marker and apply the element.
const marker = new AdvancedMarkerElement({
    map,
    position: { lat: 37.419, lng: -122.02 },
    content: pin.element,
});

Em mapas criados usando HTML, os parâmetros básicos de um marcador são declarados usando o elemento HTML gmp-advanced-marker. Qualquer personalização que use a classe PinElement precisa ser aplicada de forma programática. Para fazer isso, o código precisa extrair os elementos gmp-advanced-marker da página HTML. O snippet abaixo mostra o código para consultar uma coleção de elementos gmp-advanced-marker e iterar pelos resultados para aplicar a personalização declarada no PinElement.

// Return an array of markers.
const advancedMarkers = [...document.querySelectorAll('gmp-advanced-marker')];

// Loop through the markers
for (let i = 0; i < advancedMarkers.length; i++) {
  const pin = new PinElement({
      scale: 2.0,
  });

  marker.appendChild(pin.element);
}

Esta página mostra como personalizar marcadores das seguintes maneiras:

Partes de um marcador avançado.
Figura 1: as partes de um marcador avançado.

Adicionar texto do título

O texto do título aparece ao passar o cursor sobre um marcador e pode ser lido por leitores de tela.

Para adicionar o texto do título de forma programática, use a opção AdvancedMarkerElement.title:

// Default marker with title text (no PinElement).
const markerViewWithText = new AdvancedMarkerElement({
  map,
  position: { lat: 37.419, lng: -122.03 },
  title: "Title text for the marker at lat: 37.419, lng: -122.03",
});
index.js

Para adicionar o texto do título a um marcador criado usando HTML, use o atributo title:

<gmp-map
  center="43.4142989,-124.2301242"
  zoom="4"
  map-id="DEMO_MAP_ID"
  style="height: 400px"
>
  <gmp-advanced-marker
    position="37.4220656,-122.0840897"
    title="Mountain View, CA"
  ></gmp-advanced-marker>
  <gmp-advanced-marker
    position="47.648994,-122.3503845"
    title="Seattle, WA"
  ></gmp-advanced-marker>
</gmp-map>
index.html

Ajustar a escala do marcador

Para redimensionar um marcador, use a opção scale.

TypeScript

// Adjust the scale.
const pinScaled = new PinElement({
    scale: 1.5,
});
const markerViewScaled = new AdvancedMarkerElement({
    map,
    position: { lat: 37.419, lng: -122.02 },
    content: pinScaled.element,
});
index.ts

JavaScript

// Adjust the scale.
const pinScaled = new PinElement({
  scale: 1.5,
});
const markerViewScaled = new AdvancedMarkerElement({
  map,
  position: { lat: 37.419, lng: -122.02 },
  content: pinScaled.element,
});
index.js

Mudar a cor do plano de fundo

Use a opção PinElement.background para mudar a cor de fundo de um marcador:

TypeScript

// Change the background color.
const pinBackground = new PinElement({
    background: '#FBBC04',
});
const markerViewBackground = new AdvancedMarkerElement({
    map,
    position: { lat: 37.419, lng: -122.01 },
    content: pinBackground.element,
});
index.ts

JavaScript

// Change the background color.
const pinBackground = new PinElement({
  background: "#FBBC04",
});
const markerViewBackground = new AdvancedMarkerElement({
  map,
  position: { lat: 37.419, lng: -122.01 },
  content: pinBackground.element,
});
index.js

Mudar a cor da borda

Use a opção PinElement.borderColor para mudar a cor da borda de um marcador:

TypeScript

// Change the border color.
const pinBorder = new PinElement({
    borderColor: '#137333',
});
const markerViewBorder = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.035 },
    content: pinBorder.element,
});
index.ts

JavaScript

// Change the border color.
const pinBorder = new PinElement({
  borderColor: "#137333",
});
const markerViewBorder = new AdvancedMarkerElement({
  map,
  position: { lat: 37.415, lng: -122.035 },
  content: pinBorder.element,
});
index.js

Mudar a cor do glifo

Use a opção PinElement.glyphColor para mudar a cor do glifo de um marcador:

TypeScript

// Change the glyph color.
const pinGlyph = new PinElement({
    glyphColor: 'white',
});
const markerViewGlyph = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.025 },
    content: pinGlyph.element,
});
index.ts

JavaScript

// Change the glyph color.
const pinGlyph = new PinElement({
  glyphColor: "white",
});
const markerViewGlyph = new AdvancedMarkerElement({
  map,
  position: { lat: 37.415, lng: -122.025 },
  content: pinGlyph.element,
});
index.js

Adicionar texto a um glifo

Use a opção PinElement.glyph para substituir o glifo padrão por um caractere de texto. O glifo de texto do PinElement é dimensionado com o PinElement e a cor padrão dele corresponde ao glyphColor padrão do PinElement.

TypeScript

const pinTextGlyph = new PinElement({
    glyph: 'T',
    glyphColor: 'white',
});
const markerViewGlyphText = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.015 },
    content: pinTextGlyph.element,
});
index.ts

JavaScript

const pinTextGlyph = new PinElement({
  glyph: "T",
  glyphColor: "white",
});
const markerViewGlyphText = new AdvancedMarkerElement({
  map,
  position: { lat: 37.415, lng: -122.015 },
  content: pinTextGlyph.element,
});
index.js

Ocultar o glifo

Defina a opção PinElement.glyph como uma string vazia para ocultar o glifo de um marcador:

TypeScript

// Hide the glyph.
const pinNoGlyph = new PinElement({
    glyph: '',
});
const markerViewNoGlyph = new AdvancedMarkerElement({
    map,
    position: { lat: 37.415, lng: -122.005 },
    content: pinNoGlyph.element,
});
index.ts

JavaScript

// Hide the glyph.
const pinNoGlyph = new PinElement({
  glyph: "",
});
const markerViewNoGlyph = new AdvancedMarkerElement({
  map,
  position: { lat: 37.415, lng: -122.005 },
  content: pinNoGlyph.element,
});
index.js

Também é possível definir PinElement.glyphColor como o mesmo valor que PinElement.background. O efeito é semelhante a ocultar o glifo.

Próximas etapas: