如何使用Google Maps Javascript API在多边形顶部添加标记? [英] How to add markers on top of a polygon using Google Maps Javascript API?
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问题描述
我正在使用Google Maps Javascript API,并且已经定义了一个多边形并将其附加到地图上:
I'm using the Google Maps Javascript API, and I've defined a polygon and attached it to a map:
const region = new google.maps.Polygon({
map: map,
paths: [
{ lat: 40.5577151228437, lng: -74.15980859374997 },
{ lat: 40.599436503265856, lng: -74.27516503906247 },
{ lat: 40.67030312529891, lng: -74.25319238281247 },
{ lat: 40.72548139969253, lng: -74.26079167357881 },
],
});
我有一个单击处理程序,可以在用户单击时在其上添加标记:
I have a click handler that adds a marker on it when the user clicks:
google.maps.event.addListener(map, 'click', function (e) {
const marker = new google.maps.Marker({
map: map,
position: e.latLng,
});
});
当我单击多边形的外部区域时,我会看到标记,但是当我单击多边形的内部时,我看不到标记.
I see the marker when I click on areas outside of the polygon, but I don't see the marker when I click inside the polygon.
我已经尝试对每个zIndex进行硬编码,但是没有运气.有什么想法吗?
I've tried hard-coding a zIndex on each, but no luck. Any ideas?
推荐答案
两个选项:
- 将点击侦听器添加到多边形
google.maps.event.addListener(region, 'click', function (e) {
const marker = new google.maps.Marker({
map: map,
position: e.latLng,
});
});
function initialize() {
var map = new google.maps.Map(
document.getElementById("map_canvas"), {
center: new google.maps.LatLng(37.4419, -122.1419),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
const region = new google.maps.Polygon({
map: map,
paths: [
{ lat: 40.5577151228437, lng: -74.15980859374997 },
{ lat: 40.599436503265856, lng: -74.27516503906247 },
{ lat: 40.67030312529891, lng: -74.25319238281247 },
{ lat: 40.72548139969253, lng: -74.26079167357881 },
],
});
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < region.getPath().getLength(); i++) {
bounds.extend(region.getPath().getAt(i));
}
map.fitBounds(bounds);
function addMarker(e) {
const marker = new google.maps.Marker({
map: map,
position: e.latLng,
});
}
google.maps.event.addListener(map, 'click', addMarker);
google.maps.event.addListener(region, 'click', addMarker);
}
google.maps.event.addDomListener(window, "load", initialize);
html,
body,
#map_canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map_canvas"></div>
- 使多边形不捕获点击(可点击:false);
const region = new google.maps.Polygon({
map: map,
clickable: false,
paths: [
{ lat: 40.5577151228437, long: -74.15980859374997 },
{ lat: 40.599436503265856, long: -74.27516503906247 },
{ lat: 40.67030312529891, long: -74.25319238281247 },
{ lat: 40.72548139969253, long: -74.26079167357881 },
],
}
function initialize() {
var map = new google.maps.Map(
document.getElementById("map_canvas"), {
center: new google.maps.LatLng(37.4419, -122.1419),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
const region = new google.maps.Polygon({
map: map,
clickable: false,
paths: [
{ lat: 40.5577151228437, lng: -74.15980859374997 },
{ lat: 40.599436503265856, lng: -74.27516503906247 },
{ lat: 40.67030312529891, lng: -74.25319238281247 },
{ lat: 40.72548139969253, lng: -74.26079167357881 },
],
});
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < region.getPath().getLength(); i++) {
bounds.extend(region.getPath().getAt(i));
}
map.fitBounds(bounds);
google.maps.event.addListener(map, 'click', function(e) {
const marker = new google.maps.Marker({
map: map,
position: e.latLng,
});
});
}
google.maps.event.addDomListener(window, "load", initialize);
html,
body,
#map_canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map_canvas"></div>
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