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index.js
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index.js
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/**
* @license
* Copyright 2019 Google LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
// [START maps_maptype_base]
/*
* This demo demonstrates how to replace default map tiles with custom imagery.
* In this case, the CoordMapType displays gray tiles annotated with the tile
* coordinates.
*
* Try panning and zooming the map to see how the coordinates change.
*/
class CoordMapType {
tileSize;
maxZoom = 19;
name = "Tile #s";
alt = "Tile Coordinate Map Type";
constructor(tileSize) {
this.tileSize = tileSize;
}
getTile(coord, zoom, ownerDocument) {
const div = ownerDocument.createElement("div");
div.innerHTML = String(coord);
div.style.width = this.tileSize.width + "px";
div.style.height = this.tileSize.height + "px";
div.style.fontSize = "10";
div.style.borderStyle = "solid";
div.style.borderWidth = "1px";
div.style.borderColor = "#AAAAAA";
div.style.backgroundColor = "#E5E3DF";
return div;
}
releaseTile(tile) {}
}
function initMap() {
const map = new google.maps.Map(document.getElementById("map"), {
zoom: 10,
center: { lat: 41.85, lng: -87.65 },
streetViewControl: false,
mapTypeId: "coordinate",
mapTypeControlOptions: {
mapTypeIds: ["coordinate", "roadmap"],
style: google.maps.MapTypeControlStyle.DROPDOWN_MENU,
},
});
map.addListener("maptypeid_changed", () => {
const showStreetViewControl = map.getMapTypeId() !== "coordinate";
map.setOptions({
streetViewControl: showStreetViewControl,
});
});
// Now attach the coordinate map type to the map's registry.
map.mapTypes.set(
"coordinate",
new CoordMapType(new google.maps.Size(256, 256)),
);
}
window.initMap = initMap;
// [END maps_maptype_base]