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Google Maps JavaScript API getBounds on Polygon.
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| <!DOCTYPE html> | |
| <main class="container"> | |
| <div class="row" id="map" style="height: 600px"></div> | |
| </main> | |
| <script src="https://maps.googleapis.com/maps/api/js?key=<!--YOURKEYHERE-->&libraries=drawing"></script> | |
| <script> | |
| var map, drawingManager; | |
| function initialize() { | |
| map = new google.maps.Map(document.getElementById('map'), { | |
| center: {lat: 40.9, lng: -73}, zoom: 10 | |
| }); | |
| drawingManager = new google.maps.drawing.DrawingManager({ | |
| drawingControl: true, | |
| drawingControlOptions: { | |
| position: google.maps.ControlPosition.TOP_CENTER, | |
| drawingModes: ['polygon', 'rectangle'] | |
| }, | |
| polygonOptions: { | |
| editable: true, | |
| } | |
| }); | |
| drawingManager.setMap(map); | |
| google.maps.event.addListener(drawingManager, 'polygoncomplete', (polygon) => { | |
| let bounds = new google.maps.LatLngBounds(); | |
| map.data.forEach((polygon) => { | |
| polygon.getGeometry().forEachLatLng((latlng) => { | |
| bounds.extend(latlng); | |
| }); | |
| }); | |
| let marker = new google.maps.Marker({ | |
| position: bounds.getCenter(), | |
| map: map, | |
| title: mapGrid.value | |
| }); | |
| }); | |
| } | |
| google.maps.event.addDomListener(window, 'load', initialize); | |
| </script> |
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| <!DOCTYPE html> | |
| <main class="container"> | |
| <div class="row" id="map" style="height: 600px"></div> | |
| </main> | |
| <script src="https://maps.googleapis.com/maps/api/js?key=<!--YOURKEYHERE-->&libraries=drawing"></script> | |
| <script> | |
| var map, drawingManager; | |
| function initialize() { | |
| map = new google.maps.Map(document.getElementById('map'), { | |
| center: {lat: 40.9, lng: -73}, zoom: 10 | |
| }); | |
| drawingManager = new google.maps.drawing.DrawingManager({ | |
| drawingControl: true, | |
| drawingControlOptions: { | |
| position: google.maps.ControlPosition.TOP_CENTER, | |
| drawingModes: ['polygon', 'rectangle'] | |
| }, | |
| polygonOptions: { | |
| editable: true, | |
| } | |
| }); | |
| drawingManager.setMap(map); | |
| google.maps.event.addListener(drawingManager, 'polygoncomplete', (polygon) => { | |
| let bounds = new google.maps.LatLngBounds(); | |
| polygon.getPath().forEach((latLng) => { | |
| bounds.extend(latLng); | |
| }); | |
| let marker = new google.maps.Marker({ | |
| map: map, | |
| title: mapGrid.value, | |
| position: bounds.getCenter() | |
| }); | |
| }); | |
| } | |
| google.maps.event.addDomListener(window, 'load', initialize); | |
| </script> |
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Draw a polygon with the DrawingManger. Once you complete the shape, it will fire the polygon complete method. It should then add a marker to the center of the polygon. But it does not.