我正在尝试根据下拉选择选项框中的选择将 map 居中。我已经尝试了几个示例，但尚未使 map 以新的纬度和经度坐标为中心。
我想使用现有代码进行工作，而不用从另一个示例开始。
我尝试的最新示例位于带有 centerMap() 函数的代码中。
请帮忙。
谢谢!
var sites = [{
name: "ABC",
FiftyPlus: "0.72",
GAs: "0",
AccPerOpp: "20.09",
AutoPay: "0.44",
WTR: "100",
ISE: "Bert Bingham",
lat: "29.9792183",
lng: "-90.22268919999999"
},
{
name: "AJAX",
FiftyPlus: "0.81",
GAs: "0",
AccPerOpp: "18.7",
AutoPay: "0.13",
WTR: "100",
ISE: "Bert Bingham",
lat: "30.0032515",
lng: "-90.22060119999999"
},
{
name: "CBS",
FiftyPlus: "0.8",
GAs: "0",
AccPerOpp: "16.99",
AutoPay: "0.23",
WTR: "100",
ISE: "Bing Bingle",
lat: "43.9703011",
lng: "-90.08290799999999"
},
{
name: "Turner",
FiftyPlus: "0.78",
GAs: "0",
AccPerOpp: "17.68",
AutoPay: "0.23",
WTR: "100",
ISE: "Bing Bingle",
lat: "43.004759",
lng: "-90.17053299999999"
},
];
//Angular 应用模块和 Controller
angular.module('mapsApp', [])
.controller('MapCtrl', function($scope) {
var mapOptions = {
zoom: 7,
center: new google.maps.LatLng(32.340803, -89.4855946),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var mapOptions1 = {
zoom: 9,
center: new google.maps.LatLng(31.3186154, -85.8286258),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
$scope.map = new google.maps.Map(document.getElementById('map'), mapOptions);
function centerMap() {
if (document.getElementById("ISEs").value === 'Bert Bingle') {
$scope.map = new google.maps.Map(document.getElementById('map'), mapOptions1);
}
}
$scope.markers = [];
var infoWindow = new google.maps.InfoWindow();
/*var icon = {
url: "image/store.svg", // url
scaledSize: new google.maps.Size(25, 25), // scaled size
origin: new google.maps.Point(0,0), // origin
anchor: new google.maps.Point(0, 0) // anchor
};
*/
var createMarker = function(info) {
var marker = new google.maps.Marker({
map: $scope.map,
position: new google.maps.LatLng(info.lat, info.lng),
title: info.name,
icon: {
url: "http://maps.google.com/mapfiles/ms/icons/green-dot.png"
}
});
marker.content = '<div class="iw-ISE">' + info.ISE + '</div>' +
'<div class="iw-labels">' + "GAs: " + info.GAs + '</div>' +
'<div class="iw-labels">' + "Auto Pay: " + info.AutoPay + '</div>' +
'<div class="iw-labels">' + "AccPerOpp:$ " + info.AccPerOpp + '</div>' +
'<div class="iw-labels">' + "Fifty Plus: " + info.FiftyPlus + '</div>' +
'<div class="iw-labels">' + "WTR: " + info.WTR + '</div>' +
'<p>' + info.address + '</p>'
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent('<h2 class ="title">' + marker.title + '</h2>' + marker.content);
infoWindow.open($scope.map, marker);
});
$scope.markers.push(marker);
}
for (i = 0; i < sites.length; i++) {
createMarker(sites[i]);
}
$scope.openInfoWindow = function(e, selectedMarker) {
e.preventDefault();
google.maps.event.trigger(selectedMarker, 'click');
}
$scope.clearMarkers = function() {
for (var i = 0; i < $scope.markers.length; i++) {
$scope.markers[i].setMap(null);
}
$scope.markers.length = 0;
}
$scope.filterMarkers = function() {
//1.select filtered cities
var filteredISE;
var ISEName = $scope.data.singleSelect;
if (ISEName == '0') {
filteredISE = sites;
} else {
filteredISE = sites.filter(function(c) {
if (c.ISE == ISEName)
return c;
});
}
//2.update markers on map
$scope.clearMarkers();
for (i = 0; i < filteredISE.length; i++) {
createMarker(filteredISE[i]);
}
}
});
<!DOCTYPE html>
<html>
<head>
<title>Map</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, minimum-scale=1">
<meta charset="utf-8">
<link rel="stylesheet" href="CSS/bootstrap.min.css">
<link rel="stylesheet" href="CSS/style.css">
</head>
<body>
<div ng-app="mapsApp" ng-controller="MapCtrl">
<div align="center" class="input-w">
<div class="gulf">Gulf States</div>
<fieldset>
<label>ISE: </label>
<select id="ISEs" class="dropdown" name="singleSelect" ng-model="data.singleSelect" ng-change="filterMarkers()" ng-change="centerMap()">
<option value="0">all</option>
<option id="1" value="Bert Bingham">Bert Bingham</option>
<option id="2" value="Bing Bingle">Bert Bingle</option>
</select><br><br>
</fieldset>
</div>
<div id="map"></div>
<a href="#" ng-click="openInfoWindow($event, marker)">{{marker.title}}</a>
</div>
<script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyAz-1j7m4EfcSFL9o_L4BV7OPyGWNlzpbI&sensor=false" onerror="googleError()"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
<script src="js/app.js"></script>
<script src="js/lib/jquery.min.js"></script>
</body>
</html>
最佳答案
您的代码中存在一些问题:
当你调用 Controller 的函数时，你需要在 Controller 的作用域上定义它。
因此，不要只声明函数function centerMap() {在 Controller 上声明
$scope.centerMap = function () {就像 @georgeawg 所说，你有两个
ng-changeselect上的指令标签，你可以像这样组合它们:ng-change="centerMap();filterMarkers();"您正在检查(在
if中，值是Bert Bingle但它从来不是这个值，因为选项value的(属性)Bert Bingle是Bing Bingl。此外，你应该检查范围而不是 DOM，所以正确的检查是if ($scope.data.singleSelect === 'Bing Bingle') {最后，您不需要创建新 map 来更改 map 的设置，有一个 api
setOptions.所以，不要调用
$scope.map = new google.maps.Map(document.getElementById('map'),mapOptions1);这样称呼
$scope.map.setOptions(mapOptions1);
工作示例
关于javascript - 将 Google map 置于选择选项 AngularJS 上，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56820448/