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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_rectangle_event]
// This example adds a user-editable rectangle to the map.
// When the user changes the bounds of the rectangle,
// an info window pops up displaying the new bounds.
let rectangle: google.maps.Rectangle;
let map: google.maps.Map;
let infoWindow: google.maps.InfoWindow;
function initMap(): void {
map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
center: { lat: 44.5452, lng: -78.5389 },
zoom: 9
});
const bounds = {
north: 44.599,
south: 44.49,
east: -78.443,
west: -78.649
};
// Define the rectangle and set its editable property to true.
rectangle = new google.maps.Rectangle({
bounds: bounds,
editable: true,
draggable: true
});
rectangle.setMap(map);
// Add an event listener on the rectangle.
rectangle.addListener("bounds_changed", showNewRect);
// Define an info window on the map.
infoWindow = new google.maps.InfoWindow();
}
/** Show the new coordinates for the rectangle in an info window. */
function showNewRect() {
const ne = rectangle.getBounds().getNorthEast();
const sw = rectangle.getBounds().getSouthWest();
const contentString =
"<b>Rectangle moved.</b><br>" +
"New north-east corner: " +
ne.lat() +
", " +
ne.lng() +
"<br>" +
"New south-west corner: " +
sw.lat() +
", " +
sw.lng();
// Set the info window's content and position.
infoWindow.setContent(contentString);
infoWindow.setPosition(ne);
infoWindow.open(map);
}
// [END maps_rectangle_event]
export { initMap };