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index.ts
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index.ts
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/*
* Copyright 2019 Google LLC. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// [START maps_icon_complex]
// The following example creates complex markers to indicate beaches near
// Sydney, NSW, Australia. Note that the anchor is set to (0,32) to correspond
// to the base of the flagpole.
function initMap(): void {
const map = new google.maps.Map(
document.getElementById("map") as HTMLElement,
{
zoom: 10,
center: { lat: -33.9, lng: 151.2 },
}
);
setMarkers(map);
}
// Data for the markers consisting of a name, a LatLng and a zIndex for the
// order in which these markers should display on top of each other.
const beaches: [string, number, number, number][] = [
["Bondi Beach", -33.890542, 151.274856, 4],
["Coogee Beach", -33.923036, 151.259052, 5],
["Cronulla Beach", -34.028249, 151.157507, 3],
["Manly Beach", -33.80010128657071, 151.28747820854187, 2],
["Maroubra Beach", -33.950198, 151.259302, 1],
];
function setMarkers(map: google.maps.Map) {
// Adds markers to the map.
// Marker sizes are expressed as a Size of X,Y where the origin of the image
// (0,0) is located in the top left of the image.
// Origins, anchor positions and coordinates of the marker increase in the X
// direction to the right and in the Y direction down.
const image = {
url: "https://developers.google.com/maps/documentation/javascript/examples/full/images/beachflag.png",
// This marker is 20 pixels wide by 32 pixels high.
size: new google.maps.Size(20, 32),
// The origin for this image is (0, 0).
origin: new google.maps.Point(0, 0),
// The anchor for this image is the base of the flagpole at (0, 32).
anchor: new google.maps.Point(0, 32),
};
// Shapes define the clickable region of the icon. The type defines an HTML
// <area> element 'poly' which traces out a polygon as a series of X,Y points.
// The final coordinate closes the poly by connecting to the first coordinate.
const shape = {
coords: [1, 1, 1, 20, 18, 20, 18, 1],
type: "poly",
};
for (let i = 0; i < beaches.length; i++) {
const beach = beaches[i];
new google.maps.Marker({
position: { lat: beach[1], lng: beach[2] },
map,
icon: image,
shape: shape,
title: beach[0],
zIndex: beach[3],
});
}
}
// [END maps_icon_complex]
export { initMap };