This example demonstrates how a user can delete a vertex, or a point on the line, by right-clicking on a vertex to show a "Delete" menu.
TypeScript
function initialize() { const mapOptions = { zoom: 3, center: new google.maps.LatLng(0, -180), mapTypeId: "terrain", }; const map = new google.maps.Map( document.getElementById("map") as HTMLElement, mapOptions ); const flightPlanCoordinates = [ new google.maps.LatLng(37.772323, -122.214897), new google.maps.LatLng(21.291982, -157.821856), new google.maps.LatLng(-18.142599, 178.431), new google.maps.LatLng(-27.46758, 153.027892), ]; const flightPath = new google.maps.Polyline({ path: flightPlanCoordinates, editable: true, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 2, map: map, }); /** * A menu that lets a user delete a selected vertex of a path. */ class DeleteMenu extends google.maps.OverlayView { private div_: HTMLDivElement; private divListener_?: google.maps.MapsEventListener; constructor() { super(); this.div_ = document.createElement("div"); this.div_.className = "delete-menu"; this.div_.innerHTML = "Delete"; const menu = this; google.maps.event.addDomListener(this.div_, "click", () => { menu.removeVertex(); }); } onAdd() { const deleteMenu = this; const map = this.getMap() as google.maps.Map; this.getPanes().floatPane.appendChild(this.div_); // mousedown anywhere on the map except on the menu div will close the // menu. this.divListener_ = google.maps.event.addDomListener( map.getDiv(), "mousedown", (e: Event) => { if (e.target != deleteMenu.div_) { deleteMenu.close(); } }, true ); } onRemove() { if (this.divListener_) { google.maps.event.removeListener(this.divListener_); } (this.div_.parentNode as HTMLElement).removeChild(this.div_); // clean up this.set("position", null); this.set("path", null); this.set("vertex", null); } close() { this.setMap(null); } draw() { const position = this.get("position"); const projection = this.getProjection(); if (!position || !projection) { return; } const point = projection.fromLatLngToDivPixel(position); this.div_.style.top = point.y + "px"; this.div_.style.left = point.x + "px"; } /** * Opens the menu at a vertex of a given path. */ open( map: google.maps.Map, path: google.maps.MVCArray<google.maps.LatLng>, vertex: number ) { this.set("position", path.getAt(vertex)); this.set("path", path); this.set("vertex", vertex); this.setMap(map); this.draw(); } /** * Deletes the vertex from the path. */ removeVertex() { const path = this.get("path"); const vertex = this.get("vertex"); if (!path || vertex == undefined) { this.close(); return; } path.removeAt(vertex); this.close(); } } const deleteMenu = new DeleteMenu(); google.maps.event.addListener(flightPath, "rightclick", (e: any) => { // Check if click was on a vertex control point if (e.vertex == undefined) { return; } deleteMenu.open(map, flightPath.getPath(), e.vertex); }); }
JavaScript
function initialize() { const mapOptions = { zoom: 3, center: new google.maps.LatLng(0, -180), mapTypeId: "terrain", }; const map = new google.maps.Map(document.getElementById("map"), mapOptions); const flightPlanCoordinates = [ new google.maps.LatLng(37.772323, -122.214897), new google.maps.LatLng(21.291982, -157.821856), new google.maps.LatLng(-18.142599, 178.431), new google.maps.LatLng(-27.46758, 153.027892), ]; const flightPath = new google.maps.Polyline({ path: flightPlanCoordinates, editable: true, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 2, map: map, }); /** * A menu that lets a user delete a selected vertex of a path. */ class DeleteMenu extends google.maps.OverlayView { constructor() { super(); this.div_ = document.createElement("div"); this.div_.className = "delete-menu"; this.div_.innerHTML = "Delete"; const menu = this; google.maps.event.addDomListener(this.div_, "click", () => { menu.removeVertex(); }); } onAdd() { const deleteMenu = this; const map = this.getMap(); this.getPanes().floatPane.appendChild(this.div_); // mousedown anywhere on the map except on the menu div will close the // menu. this.divListener_ = google.maps.event.addDomListener( map.getDiv(), "mousedown", (e) => { if (e.target != deleteMenu.div_) { deleteMenu.close(); } }, true ); } onRemove() { if (this.divListener_) { google.maps.event.removeListener(this.divListener_); } this.div_.parentNode.removeChild(this.div_); // clean up this.set("position", null); this.set("path", null); this.set("vertex", null); } close() { this.setMap(null); } draw() { const position = this.get("position"); const projection = this.getProjection(); if (!position || !projection) { return; } const point = projection.fromLatLngToDivPixel(position); this.div_.style.top = point.y + "px"; this.div_.style.left = point.x + "px"; } /** * Opens the menu at a vertex of a given path. */ open(map, path, vertex) { this.set("position", path.getAt(vertex)); this.set("path", path); this.set("vertex", vertex); this.setMap(map); this.draw(); } /** * Deletes the vertex from the path. */ removeVertex() { const path = this.get("path"); const vertex = this.get("vertex"); if (!path || vertex == undefined) { this.close(); return; } path.removeAt(vertex); this.close(); } } const deleteMenu = new DeleteMenu(); google.maps.event.addListener(flightPath, "rightclick", (e) => { // Check if click was on a vertex control point if (e.vertex == undefined) { return; } deleteMenu.open(map, flightPath.getPath(), e.vertex); }); }
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; } .delete-menu { position: absolute; background: white; padding: 3px; color: #666; font-weight: bold; border: 1px solid #999; font-family: sans-serif; font-size: 12px; box-shadow: 1px 3px 3px rgba(0, 0, 0, 0.3); margin-top: -10px; margin-left: 10px; cursor: pointer; } .delete-menu:hover { background: #eee; }
HTML
<!DOCTYPE html> <html> <head> <title>Deleting a Vertex</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initialize&libraries=&v=weekly" defer ></script> <link rel="stylesheet" type="text/css" href="./style.css" /> <script src="./index.js"></script> </head> <body> <div id="map"></div> </body> </html>
All
<!DOCTYPE html> <html> <head> <title>Deleting a Vertex</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initialize&libraries=&v=weekly" defer ></script> <style type="text/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; } .delete-menu { position: absolute; background: white; padding: 3px; color: #666; font-weight: bold; border: 1px solid #999; font-family: sans-serif; font-size: 12px; box-shadow: 1px 3px 3px rgba(0, 0, 0, 0.3); margin-top: -10px; margin-left: 10px; cursor: pointer; } .delete-menu:hover { background: #eee; } </style> <script> function initialize() { const mapOptions = { zoom: 3, center: new google.maps.LatLng(0, -180), mapTypeId: "terrain", }; const map = new google.maps.Map( document.getElementById("map"), mapOptions ); const flightPlanCoordinates = [ new google.maps.LatLng(37.772323, -122.214897), new google.maps.LatLng(21.291982, -157.821856), new google.maps.LatLng(-18.142599, 178.431), new google.maps.LatLng(-27.46758, 153.027892), ]; const flightPath = new google.maps.Polyline({ path: flightPlanCoordinates, editable: true, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 2, map: map, }); /** * A menu that lets a user delete a selected vertex of a path. */ class DeleteMenu extends google.maps.OverlayView { constructor() { super(); this.div_ = document.createElement("div"); this.div_.className = "delete-menu"; this.div_.innerHTML = "Delete"; const menu = this; google.maps.event.addDomListener(this.div_, "click", () => { menu.removeVertex(); }); } onAdd() { const deleteMenu = this; const map = this.getMap(); this.getPanes().floatPane.appendChild(this.div_); // mousedown anywhere on the map except on the menu div will close the // menu. this.divListener_ = google.maps.event.addDomListener( map.getDiv(), "mousedown", (e) => { if (e.target != deleteMenu.div_) { deleteMenu.close(); } }, true ); } onRemove() { if (this.divListener_) { google.maps.event.removeListener(this.divListener_); } this.div_.parentNode.removeChild(this.div_); // clean up this.set("position", null); this.set("path", null); this.set("vertex", null); } close() { this.setMap(null); } draw() { const position = this.get("position"); const projection = this.getProjection(); if (!position || !projection) { return; } const point = projection.fromLatLngToDivPixel(position); this.div_.style.top = point.y + "px"; this.div_.style.left = point.x + "px"; } /** * Opens the menu at a vertex of a given path. */ open(map, path, vertex) { this.set("position", path.getAt(vertex)); this.set("path", path); this.set("vertex", vertex); this.setMap(map); this.draw(); } /** * Deletes the vertex from the path. */ removeVertex() { const path = this.get("path"); const vertex = this.get("vertex"); if (!path || vertex == undefined) { this.close(); return; } path.removeAt(vertex); this.close(); } } const deleteMenu = new DeleteMenu(); google.maps.event.addListener(flightPath, "rightclick", (e) => { // Check if click was on a vertex control point if (e.vertex == undefined) { return; } deleteMenu.open(map, flightPath.getPath(), e.vertex); }); } </script> </head> <body> <div id="map"></div> </body> </html>
function initialize() {
const mapOptions = {
zoom: 3,
center: new google.maps.LatLng(0, -180),
mapTypeId: "terrain",
};
const map = new google.maps.Map(document.getElementById("map"), mapOptions);
const flightPlanCoordinates = [
new google.maps.LatLng(37.772323, -122.214897),
new google.maps.LatLng(21.291982, -157.821856),
new google.maps.LatLng(-18.142599, 178.431),
new google.maps.LatLng(-27.46758, 153.027892),
];
const flightPath = new google.maps.Polyline({
path: flightPlanCoordinates,
editable: true,
strokeColor: "#FF0000",
strokeOpacity: 1.0,
strokeWeight: 2,
map: map,
});
/**
* A menu that lets a user delete a selected vertex of a path.
*/
class DeleteMenu extends google.maps.OverlayView {
constructor() {
super();
this.div_ = document.createElement("div");
this.div_.className = "delete-menu";
this.div_.innerHTML = "Delete";
const menu = this;
google.maps.event.addDomListener(this.div_, "click", () => {
menu.removeVertex();
});
}
onAdd() {
const deleteMenu = this;
const map = this.getMap();
this.getPanes().floatPane.appendChild(this.div_);
// mousedown anywhere on the map except on the menu div will close the
// menu.
this.divListener_ = google.maps.event.addDomListener(
map.getDiv(),
"mousedown",
(e) => {
if (e.target != deleteMenu.div_) {
deleteMenu.close();
}
},
true
);
}
onRemove() {
if (this.divListener_) {
google.maps.event.removeListener(this.divListener_);
}
this.div_.parentNode.removeChild(this.div_);
// clean up
this.set("position", null);
this.set("path", null);
this.set("vertex", null);
}
close() {
this.setMap(null);
}
draw() {
const position = this.get("position");
const projection = this.getProjection();
if (!position || !projection) {
return;
}
const point = projection.fromLatLngToDivPixel(position);
this.div_.style.top = point.y + "px";
this.div_.style.left = point.x + "px";
}
/**
* Opens the menu at a vertex of a given path.
*/
open(map, path, vertex) {
this.set("position", path.getAt(vertex));
this.set("path", path);
this.set("vertex", vertex);
this.setMap(map);
this.draw();
}
/**
* Deletes the vertex from the path.
*/
removeVertex() {
const path = this.get("path");
const vertex = this.get("vertex");
if (!path || vertex == undefined) {
this.close();
return;
}
path.removeAt(vertex);
this.close();
}
}
const deleteMenu = new DeleteMenu();
google.maps.event.addListener(flightPath, "rightclick", (e) => {
// Check if click was on a vertex control point
if (e.vertex == undefined) {
return;
}
deleteMenu.open(map, flightPath.getPath(), e.vertex);
});
}
/* 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;
}
.delete-menu {
position: absolute;
background: white;
padding: 3px;
color: #666;
font-weight: bold;
border: 1px solid #999;
font-family: sans-serif;
font-size: 12px;
box-shadow: 1px 3px 3px rgba(0, 0, 0, 0.3);
margin-top: -10px;
margin-left: 10px;
cursor: pointer;
}
.delete-menu:hover {
background: #eee;
}
<!DOCTYPE html>
<html>
<head>
<title>Deleting a Vertex</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&callback=initialize&libraries=&v=weekly"
defer
></script>
<!-- jsFiddle will insert css and js -->
</head>
<body>
<div id="map"></div>
</body>
</html>
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npx @googlemaps/js-samples init delete-vertex-menu DESTINATION_FOLDER
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