使用数组向谷歌地图添加多个自定义标记

Question

我目前正在为我的网站实施谷歌地图，偶然发现了一个很棒的教程here，它几乎让我到达了应许之地。但是，我还有一项要添加的功能。在我的数组中，我想在我的地图上显示三个不同的自定义标记之一。有人有什么想法吗？

这是fiddle...

var locations = [
    ['Bondi Beach', -33.890542, 151.274856, 4],
    ['Coogee Beach', -33.923036, 151.259052, 5],
    ['Cronulla Beach', -34.028249, 151.157507, 3],
    ['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
    ['Maroubra Beach', -33.950198, 151.259302, 1]
];

var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 10,
    center: new google.maps.LatLng(-33.92, 151.25),
    mapTypeId: google.maps.MapTypeId.ROADMAP
});

var infowindow = new google.maps.InfoWindow();

var marker, i;

for (i = 0; i < locations.length; i++) {
    marker = new google.maps.Marker({
        position: new google.maps.LatLng(locations[i][1], locations[i][2]),
        map: map
    });

    google.maps.event.addListener(marker, 'click', (function (marker, i) {
        return function () {
            infowindow.setContent(locations[i][0]);
            infowindow.open(map, marker);
        }
    })(marker, i));
}

<div id="map" style="width: 500px; height: 400px;"></div>

Answer 1

最简单的解决方案，将所需图标的 URL 添加到您的数组中：

var locations = [
    ['Bondi Beach', -33.890542, 151.274856, 4, "http://maps.google.com/mapfiles/ms/micons/blue.png"],
    ['Coogee Beach', -33.923036, 151.259052, 5, "http://maps.google.com/mapfiles/ms/micons/green.png"],
    ['Cronulla Beach', -34.028249, 151.157507, 3, "http://maps.google.com/mapfiles/ms/micons/yellow.png"],
    ['Manly Beach', -33.80010128657071, 151.28747820854187, 2, "http://maps.google.com/mapfiles/ms/micons/blue.png"],
    ['Maroubra Beach', -33.950198, 151.259302, 1, "http://maps.google.com/mapfiles/ms/micons/blue.png"]
];

然后在标记构造函数中使用它：

marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i][1], locations[i][2]),
    icon: locations[i][4],
    map: map
});

updated fiddle

代码 sn-p：

var locations = [
  ['Bondi Beach', -33.890542, 151.274856, 4, "http://maps.google.com/mapfiles/ms/micons/blue.png"],
  ['Coogee Beach', -33.923036, 151.259052, 5, "http://maps.google.com/mapfiles/ms/micons/green.png"],
  ['Cronulla Beach', -34.028249, 151.157507, 3, "http://maps.google.com/mapfiles/ms/micons/yellow.png"],
  ['Manly Beach', -33.80010128657071, 151.28747820854187, 2, "http://maps.google.com/mapfiles/ms/micons/blue.png"],
  ['Maroubra Beach', -33.950198, 151.259302, 1, "http://maps.google.com/mapfiles/ms/micons/blue.png"]
];

var map = new google.maps.Map(document.getElementById('map'), {
  zoom: 10,
  center: new google.maps.LatLng(-33.92, 151.25),
  mapTypeId: google.maps.MapTypeId.ROADMAP
});

var infowindow = new google.maps.InfoWindow();

var marker, i;

for (i = 0; i < locations.length; i++) {
  marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i][1], locations[i][2]),
    icon: locations[i][4],
    title: locations[i][0],
    map: map
  });

  google.maps.event.addListener(marker, 'click', (function(marker, i) {
    return function() {
      infowindow.setContent(locations[i][0]);
      infowindow.open(map, marker);
    }
  })(marker, i));
}

html,
body,
#map {
  width: 100%;
  height: 100%;
}

<script src="http://maps.google.com/maps/api/js"></script>
<div id="map"></div>

Answer 2

您没有告诉我们您希望何时显示自定义标记，但要显示自定义标记，您只需定义要显示的图像并将其作为图标传递给标记对象：yourMarker。

如果您想添加条件语句以在给定特定条件的情况下显示特定标记，您可以使用 if/else 语句来实现。

这是一个小提琴。

http://jsfiddle.net/chrislewispac/jmLq398e/1/

var locations = [
  ['Bondi Beach', -33.890542, 151.274856, 4],
  ['Coogee Beach', -33.923036, 151.259052, 5],
  ['Cronulla Beach', -34.028249, 151.157507, 3],
  ['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
  ['Maroubra Beach', -33.950198, 151.259302, 1]
];

var map = new google.maps.Map(document.getElementById('map'), {
  zoom: 10,
  center: new google.maps.LatLng(-33.92, 151.25),
  mapTypeId: google.maps.MapTypeId.ROADMAP
});

var infowindow = new google.maps.InfoWindow();

var goldStar = {
    path: 'M 125,5 155,90 245,90 175,145 200,230 125,180 50,230 75,145 5,90 95,90 z',
    fillColor: 'yellow',
    fillOpacity: 0.8,
    scale: 0.05,
    strokeColor: 'gold',
    strokeWeight: 2
};

var marker, i;

for (i = 0; i < locations.length; i++) {  
  marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i][1], locations[i][2]),
      icon: goldStar,
    map: map
  });

  google.maps.event.addListener(marker, 'click', (function(marker, i) {
    return function() {
      infowindow.setContent(locations[i][0]);
      infowindow.open(map, marker);
    }
  })(marker, i));
}

对api的引用： https://developers.google.com/maps/documentation/javascript/examples/marker-symbol-custom

编辑：

这是一个更新小提琴，展示了如何根据地理位置自定义图标。

http://jsfiddle.net/chrislewispac/jmLq398e/2/

var goldStar = {
path: 'M 125,5 155,90 245,90 175,145 200,230 125,180 50,230 75,145 5,90 95,90 z',
fillColor: 'yellow',
fillOpacity: 0.8,
scale: 0.05,
strokeColor: 'gold',
strokeWeight: 2
};

var blueStar = {
path: 'M 125,5 155,90 245,90 175,145 200,230 125,180 50,230 75,145 5,90 95,90 z',
fillColor: 'yellow',
fillOpacity: 0.8,
scale: 0.05,
strokeColor: 'blue',
strokeWeight: 2
};

var marker, i;

for (i = 0; i < locations.length; i++) {
    if (locations[i][1] > -33.9){
      var icon = blueStar
    } 
    else { 
       var icon = goldStar
    }

marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i][1], locations[i][2]),
    icon: icon,
    map: map
});

google.maps.event.addListener(marker, 'click', (function (marker, i) {
    return function () {
        infowindow.setContent(locations[i][0]);
        infowindow.open(map, marker);
    }
})(marker, i));
}

编辑#2

我将您的数组转换为对象数组并添加了一个用户属性。然后我调整了您的代码以使用对象而不是数组索引。

var locations = [
{
   name: 'Bondi Beach',
   lat: -33.890542,
   lon: 151.274856,
   user: 1
}, /*[......]*/
{
   name: 'Maroubra Beach',
   lat: -33.950198,
   lon: 151.259302,
   user: 3
}
];

if (locations[i].user === 1){
   var icon = blueStar
} else if (locations[i].user === 2) { 
   var icon = goldStar
}
else if (locations[i].user === 3) { 
   var icon = redStar
}

marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i].lat, locations[i].lon),
    icon: icon,
    map: map
});

http://jsfiddle.net/chrislewispac/jmLq398e/3/