我有折线连接地图上的两个点。 我想只为这两个点显示标签，并隐藏所有其他标签。
我已经探索了Google Maps API，以了解Styled Maps的工作原理。使用隐藏功能，我可以实现各种粒度的标签隐藏和显示，但是我无法实现只显示两个城市标签。
例如，如果我有一条连线，圣何塞和纽约，只有圣何塞和纽约标签应该显示在地图上，其他所有标签都是隐藏的。目前我看到的是我可以在administrative.province级别隐藏标签，但它也隐藏了圣何塞和纽约的标签。
这是我对折线和隐藏某些功能的代码片段。
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Simple Polylines</title>
<style>
html, body, #map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
<script>
function initialize() {
var MY_MAPTYPE_ID = 'custom_style';
//var MY_MAPTYPE_ID = google.maps.MapTypeId.ROADMAP;
var featureOpts = [
{
stylers: [
// { hue: '#890000' },
{ visibility: 'on' }
]
},
{
elementType: 'labels',
stylers: [
{ visibility: 'off' }
]
},
{
featureType: "administrative.country",
elementType: "labels",
stylers: [
{ visibility: "off" }
]
},
{
featureType: "administrative.locality",
elementType: "labels",
stylers: [
{ visibility: "on" }
]
},
{
featureType: 'road',
stylers: [
{ color: '#00FF00' },
{ visibility: 'off' }
]
}
];
var mapOptions = {
zoom: 3,
center: new google.maps.LatLng(0, -180),
mapTypeControlOptions: {
mapTypeIds: [google.maps.MapTypeId.TERRAIN, MY_MAPTYPE_ID]
},
mapTypeId: MY_MAPTYPE_ID
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var styledMapOptions = {
name: 'Custom Style'
};
var flightPlanCoordinates = [
new google.maps.LatLng(40.7127, -74.0059),
new google.maps.LatLng(-27.46758, 153.027892)
];
var flightPlanCoordinates1 = [
new google.maps.LatLng(50.7127, -74.0059),
new google.maps.LatLng(-27.46758, 153.027892)
];
var flightArray = [];
flightArray.push(flightPlanCoordinates);
flightArray.push(flightPlanCoordinates1);
var colorArray = [];
colorArray.push('#FF0000');
colorArray.push('#00FF00');
// Code for displaying the polylines in the browser
for(var i=0; i < flightArray.length; i++) {
var flightPath = new google.maps.Polyline({
path: flightArray[i],
geodesic: true,
strokeColor: colorArray[i],
strokeOpacity: 1.0,
strokeWeight: 1
});
var customMapType = new google.maps.StyledMapType(featureOpts, styledMapOptions);
map.mapTypes.set(MY_MAPTYPE_ID, customMapType);
flightPath.setMap(map);
}
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
答案 0 :(得分：2)
带有您的代码/折线的Google maps hide smaller cities (localites)示例：
function initialize() {
var MY_MAPTYPE_ID = 'custom_style';
//var MY_MAPTYPE_ID = google.maps.MapTypeId.ROADMAP;
var featureOpts = [{
stylers: [
// { hue: '#890000' },
{
visibility: 'on'
}
]
}, {
elementType: 'labels',
stylers: [{
visibility: 'off'
}]
}, {
featureType: "administrative.country",
elementType: "labels",
stylers: [{
visibility: "off"
}]
}, {
featureType: "administrative.locality",
elementType: "labels",
stylers: [{
visibility: "off"
}]
}, {
featureType: 'road',
stylers: [{
color: '#00FF00'
}, {
visibility: 'off'
}]
}];
var mapOptions = {
zoom: 3,
center: new google.maps.LatLng(0, -180),
mapTypeControlOptions: {
mapTypeIds: [google.maps.MapTypeId.TERRAIN, MY_MAPTYPE_ID]
},
mapTypeId: MY_MAPTYPE_ID
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var styledMapOptions = {
name: 'Custom Style'
};
var flightPlanCoordinates = [
new google.maps.LatLng(40.7127, -74.0059),
new google.maps.LatLng(-27.46758, 153.027892)
];
var flightPlanCoordinates1 = [
new google.maps.LatLng(50.7127, -74.0059),
new google.maps.LatLng(-27.46758, 153.027892)
];
var flightArray = [];
flightArray.push(flightPlanCoordinates);
flightArray.push(flightPlanCoordinates1);
var colorArray = [];
colorArray.push('#FF0000');
colorArray.push('#00FF00');
// Code for displaying the polylines in the browser
for (var i = 0; i < flightArray.length; i++) {
var flightPath = new google.maps.Polyline({
path: flightArray[i],
geodesic: true,
strokeColor: colorArray[i],
strokeOpacity: 1.0,
strokeWeight: 1
});
var customMapType = new google.maps.StyledMapType(featureOpts, styledMapOptions);
map.mapTypes.set(MY_MAPTYPE_ID, customMapType);
flightPath.setMap(map);
}
var citiesJSON = {
geonames: [{
lat: 40.7127,
lng: -74.0059,
name: "New York"
}, {
lat: -27.46758,
lng: 153.027892,
name: "Brisbane"
}, {
lat: 50.7127,
lng: -74.0059,
name: "Quebec"
}]
};
var mapLabels = [];
for (var i = 0; i < citiesJSON.geonames.length; i++) {
var myOptions = {
content: citiesJSON.geonames[i].name,
boxStyle: {
border: "none",
textAlign: "center",
fontSize: "8pt",
width: "100px"
},
disableAutoPan: true,
pixelOffset: new google.maps.Size(-50, 0),
position: new google.maps.LatLng(citiesJSON.geonames[i].lat,
citiesJSON.geonames[i].lng),
closeBoxURL: "",
isHidden: false,
pane: "mapPane",
enableEventPropagation: true
};
var ibLabel = new InfoBox(myOptions);
ibLabel.open(map);
mapLabels.push(ibLabel);
var marker = new google.maps.Marker({
position: new google.maps.LatLng(citiesJSON.geonames[i].lat,
citiesJSON.geonames[i].lng),
map: map,
icon: {
path: google.maps.SymbolPath.CIRCLE,
scale: 2
}
});
}
}
google.maps.event.addDomListener(window, 'load', initialize);html,
body,
#map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}<script src="https://maps.googleapis.com/maps/api/js"></script>
<script src="https://google-maps-utility-library-v3.googlecode.com/svn/trunk/infobox/src/infobox.js"></script>
<div id="map-canvas"></div>