我想突出一个区域,就像下面的图片一样,它是来自于 谷歌地图. 这在当前版本的API(v3)中是否可以实现?如果可以,如何实现?
先谢谢你。
你需要知道该区域的顶点,并基于它们创建一个多边形。
但目前多边形不支持虚线描边,如果你需要虚线描边,你必须根据顶点创建一个具有不同描边颜色的多边形序列。
目前不存在内置的高亮区域的方法。
你可以使用Google Maps Javascript API自动高亮一个区域,这里是一个例子。
<!DOCTYPE html>
<html>
<head>
<title>Place ID Finder</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
#map {
height: 100%;
}
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#ggg
{
position: absolute;
left:20%;
top:5%;
}
.controls {
background-color: #fff;
border-radius: 2px;
border: 1px solid transparent;
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
box-sizing: border-box;
font-family: Roboto;
font-size: 15px;
font-weight: 300;
height: 29px;
margin-left: 17px;
margin-top: 10px;
outline: none;
padding: 0 11px 0 13px;
text-overflow: ellipsis;
width: 400px;
}
.controls:focus {
border-color: #4d90fe;
}
.title {
font-weight: bold;
}
#infowindow-content {
display: none;
}
#map #infowindow-content {
display: inline;
}
</style>
</head>
<body>
<div style="display: none">
<input id="pac-input" class="controls" type="text" placeholder="Enter a location">
</div>
<div id="map"></div>
<div id="infowindow-content">
<span id="place-name" class="title"></span><br>
<strong>Place ID:</strong> <span id="place-id"></span><br>
<span id="place-address"></span>
</div>
<script>
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: {lat: 37.9989746, lng: 23.6413698},
zoom: 11
});
var input = document.getElementById('pac-input');
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.bindTo('bounds', map);
autocomplete.setFields(
['place_id', 'geometry', 'name', 'formatted_address']);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
var infowindow = new google.maps.InfoWindow();
var infowindowContent = document.getElementById('infowindow-content');
infowindow.setContent(infowindowContent);
var marker = new google.maps.Marker({map: map});
marker.addListener('click', function() {
infowindow.open(map, marker);
});
autocomplete.addListener('place_changed', function() {
infowindow.close();
var place = autocomplete.getPlace();
if (!place.geometry) {
return;
}
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17);
}
marker.setPlace({
placeId: place.place_id,
location: place.geometry.location,
});
marker.setVisible(true);
infowindowContent.children['place-name'].textContent = place.name;
infowindowContent.children['place-id'].textContent = place.place_id;
infowindowContent.children['place-address'].textContent = place.formatted_address;
infowindow.open(map, marker);
var frame = document.getElementById("map");
frame.innerHTML = '<iframe width="100%" height="100%" frameborder="0" style="border:0" src="https://www.google.com/maps/embed/v1/place?q=place_id:'.concat(place.place_id).concat('&key=XXXXXXX" allowfullscreen></iframe>');
frame.innerHTML += '<p id="ggg"><button type="button" onclick="location.reload()">Try again!</button></p>';
});
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=XXXXXXXXX&libraries=places&callback=initMap" async defer></script>
</body>
</html>
你需要用你的API KEY替换API KEY. 试着在输入中输入例如 "Nea Smyrni 171 21, Greece",然后选择第一个下拉选项,注意,它将自动高亮显示该区域!