我正在使用 Google Map v3 API 为项目的自定义网站编写自定义地图。
目前我有一堆标记分散在周围，因为其中有超过 100 个，我希望将它们放在 MarkerCluster 中，但是在查看许多教程和已经提出的问题时，我现在已经设法让自己明白了我的所有标记都消失了，或者只显示了 1 个，而缩放其他标记时则不会出现。
这是我第一次使用 Google API，所以一切对我来说都是新的，任何帮助都非常感谢！
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=AIzaSyDINxXHHp6_arevhHdyZZ5W3ty0mEWjzd4&sensor=true">
</script>
<script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/src/markerclusterer.js"></script>
<script type="text/javascript">
//declare map and map type (zoom level and where to centre the map on loading)
function initialize() {
var mapOptions = {
zoom: 17,
panControl: true,
zoomControl: true,
mapTypeControl: true,
scaleControl: true,
streetViewControl: true,
overviewMapControl: true,
draggable: true,
center: new google.maps.LatLng(53.403938,-2.987954),
mapTypeId: google.maps.MapTypeId.HYBRID
}
var map = new google.maps.Map(document.getElementById("map_canvas"),
mapOptions);
var mcOptions = {gridSize: 50, maxZoom: 25};
setMarkers(map, wifimaplocation);
}
var wifimaplocation = [
['BT Openzone Business Hub', 53.410133,-2.980967, 4],
['BT Openzone Business Hub 2', 53.410581,-2.98513, 5],
['BT Openzone Business Hub 3', 53.410341,-2.986254, 3],
['Wireless Outdoor Coverage (L1 6ER)', 53.408816,-2.983669, 2],
['Yates Bros Wine Lodge', 53.407319,-2.98397, 1],
['BT Openzone Business Hub 4', 53.408373,-2.982217, 6],
['BT Openzone Business Hub 5', 53.408926,-2.983751, 7],
['Liverpool Marriot Hotel',53.408926,-2.983751, 8],
['Wireless Outdoor Coverage (L1 1 St Johns Lane', 53.408563,-2.982344, 9],
['Wireless Outdoor Coverage (L1 1 Roe St)', 53.407407,-2.981337, 10],
['BT Openzone Business Hub 6', 53.40701,-2.981944, 11],
['McDonald's St Johns Precinct', 53.407121,-2.980573, 12],
['BT Openzone Business Hub 7', 53.406705,-2.980839, 13],
['BT Openzone Business Hub 8', 53.406859,-2.980066, 14],
['Network Rail - Liverpool Lime Street', 53.408688,-2.9788, 15],
['Wetherspoons', 53.405942,-2.979522, 16],
['Crown', 53.406484,-2.978754, 17],
['BT Openzone Business Hub 9', 53.406574,-2.978513, 18],
['BT Openzone Business Hub 10', 53.406574,-2.978513, 19],
['BT Openzone Business Hub 11', 53.406488,-2.978749, 20],
['Wireless Outdoor Coverage (L3 5 Bolton St)', 53.405898,-2.97773, 21],
['BT Openzone Business Hub 12', 53.408026,-2.977398, 22],
['Wireless Outdoor Coverage (Skelhorne St)', 53.416157,-2.988889, 23],
['McDonald's (Ranelagh Street)', 53.404594,-2.977877, 24],
['Wireless Outdoor Coverage (Renshaw St)', 53.404639,-2.977296, 25],
['Wetherspoons', 53.405183,-2.980989, 26],
['BT Openzone Business Hub 13', 53.405339,-2.979956, 27],
['BT Openzone Business Hub 14', 53.404869,-2.97993, 28],
['BT Openzone Business Hub 15', 53.403862,-2.979275, 29],
['Brew Tea Bar', 53.403862,-2.979275, 30],
['Starbucks Coffee', 53.404054,-2.980643, 31],
['BT Openzone Business Hub 16', 53.404054,-2.980643, 32],
['Office (Holmes Building Wood Street)', 53.404223,-2.981673, 33],
['BT Openzone Business Hub 17', 53.403512,-2.980543, 34],
['Djandos-Riff', 53.403512,-2.980543, 35],
['Bar Liverpool Ltd', 53.403512,-2.980543, 36],
['O Neills', 53.404174,-2.981809, 37],
['BT Openzone Business Hub 18', 53.405538,-2.98094, 38],
['Currys/PC World', 53.404789,-2.982451, 39],
['BT Pay Phone (Church Street)', 53.405506,-2.982687, 40],
['BT Openzone Business Hub 19', 53.406759,-2.98384, 41],
['BT Openzone Business Hub 20', 53.406686,-2.984221, 42],
['BT Openzone Business Hub 21', 53.406775,-2.98454, 43],
['Cafe Nero', 53.407034,-2.98483, 44],
['Ice', 53.406795,-2.98491, 45],
['BT Openzone Business Hub 22', 53.406142,-2.984355, 46],
['WiFi Pod Office', 53.402954,-2.984422, 47],
['BT Openzone Business Hub 23', 53.403424,-2.984184, 48],
['BT Openzone Business Hub 24', 53.404203,-2.984097, 49],
['BT Openzone Business Hub 25', 53.404697,-2.985109, 50],
['BT Openzone Business Hub 26', 53.403798,-2.985541, 51],
['BT Openzone Business Hub 27',53.406863,-2.98583, 52],
['McDonalds', 53.405218,-2.986485, 53],
['WELKIN (Wetherspoons)', 53.405998,-2.985895, 54],
['BT Openzone Business Hub 28', 53.405237,-2.98648, 55],
['BT Openzone Business Hub 29', 53.405741,-2.986495, 56],
['1Pco Lord Street Liverpool', 53.405183,-2.98649, 57],
['BT Openzone Business Hub 30', 53.405132,-2.987064, 58],
['BT Openzone Business Hub 31', 53.403868,-2.987311, 59],
['BT Openzone Business Hub 32', 53.403894,-2.98648, 60],
['Liverpool Moat House', 53.401345,-2.985981, 61],
['Wireless Outdoor Coverage (Paradise Street)', 53.401345,-2.985981, 62],
['Starbucks 2', 53.402583,-2.986039, 63],
['John Lewis', 53.402963,-2.986796, 64],
['BT Openzone Business Hub 33', 53.402986,-2.98442, 65],
['Cafe Nero', 53.404462,-2.984958, 66],
['BT Openzone Business Hub 34', 53.406296,-2.99516, 67],
['BT Openzone Business Hub 35', 53.404654,-2.991283, 68],
['Wireless Outdoor Coverage (James Street)', 53.404654,-2.991283, 69],
['BT Openzone Business Hub 36', 53.405285,-2.99319, 70],
['BT Openzone Business Hub 37', 53.405608,-2.99139, 71],
['BT Openzone Business Hub 38', 53.405682,-2.991801, 72],
['Brunswick Street', 53.40619,-2.992869, 73],
['Wireless Outdoor Coverage (Brunswick Street)', 53.40619,-2.992869, 74],
['Heywood House Hotel', 53.406695,-2.988615, 75],
['BT Openzone Business Hub 39', 53.406657,-2.990288, 76],
['BT Openzone Business Hub 40', 53.408013,-2.988277, 77],
['BT Openzone Business Hub 41', 53.408262,-2.98766, 78],
['Premier Inn - Liverpool City Centre', 53.409174,-2.988051, 79],
['BT Openzone Business Hub 42', 53.409295,-2.987504, 80],
['BT Openzone Business Hub 43', 53.409577,-2.988051, 81],
['BT Openzone Business Hub 44', 53.409922,-2.987174, 82],
['Liverpool - Hatton Garden / Tithebarn Street', 53.410632,-2.987276, 83],
['BT Openzone Business Hub 45', 53.410302,-2.98627, 84],
['Wireless Outdoor Coverage - Liverpool (Hatton Garden)', 53.410302,-2.98627, 85],
['BT Openzone Business Hub 46', 53.410993,-2.986823, 86],
['BT Openzone Business Hub 47', 53.410542,-2.985216, 87],
['Brunswick Vaults', 53.410376,-2.989443, 88],
['BT Openzone Business Hub 48', 53.410168,-2.98884, 89],
['BT Openzone Business Hub 49', 53.410389,-2.989615, 90],
['BT Openzone Business Hub 50', 53.408943,-2.990245, 91],
['Railway', 53.408969,-2.990422, 92],
['BT Openzone Business Hub 51', 53.408787,-2.991678, 93],
['BT Openzone Business Hub 52', 53.408774,-2.994178, 94],
['BT Openzone Business Hub 53', 53.405682,-2.978199, 95],
['Brew Tea Bar', 53.410159,-2.993776, 96],
['BT Openzone Business Hub 54', 53.410159,-2.993776, 97],
['Cross Keys Public House', 53.409916,-2.993743, 98],
['BT Openzone Business Hub 55', 53.404812,-2.977298, 99],
['BT Openzone Business Hub 56', 53.404313,-2.976676, 100],
['BT Openzone Business Hub 57', 53.404697,-2.976611, 101],
['stayCity Liverpool Mount Pleasant', 53.405183,-2.976314, 102],
['BT Openzone Business Hub 58', 53.405132,-2.976547, 103],
['BT Openzone Business Hub 59', 53.404275,-2.973522, 104],
['BT Openzone Business Hub 60', 53.404646,-2.972556, 105],
['BT Openzone Business Hub 61', 53.404518,-2.972341, 106],
['BT Openzone Business Hub 62', 53.404607,-2.971161, 107],
['Wireless Outdoor Coverage (Brownlow Hill)', 53.403878,-2.97129, 108],
['BT Openzone Business Hub 63', 53.40526,-2.967471, 109],
['Starbucks', 53.41154,-2.965196, 110],
['BT Openzone Business Hub 64', 53.410888,-2.967041, 111],
['Liverpool - London Road', 53.409455,-2.97659, 112],
['BT Openzone Business Hub 65', 53.41012,-2.969573, 113],
['Wireless Outdoor Coverage (Pembroke Place)', 53.409238,-2.971505, 114]
];
function setMarkers(map, locations) {
// Add markers to the map
// Marker sizes are expressed as a Size of X,Y
// where the origin of the image (0,0) is located
// in the top left of the image.
// Origins, anchor positions and coordinates of the marker
// increase in the X direction to the right and in
// the Y direction down.
var infowindow = new google.maps.InfoWindow();
var image = new google.maps.MarkerImage('image.png',
// // This marker is 20 pixels wide by 32 pixels tall.
new google.maps.Size(40, 35),
// // The origin for this image is 0,0.
new google.maps.Point(0,0),
// // The anchor for this image is the base of the flagpole at 0,32.
new google.maps.Point(0, 0));
var shadow = new google.maps.MarkerImage('shadow.png',
// // The shadow image is larger in the horizontal dimension
// // while the position and offset are the same as for the main image.
new google.maps.Size(62, 35),
new google.maps.Point(0,0),
new google.maps.Point(0, 0));
// // Shapes define the clickable region of the icon.
// // The type defines an HTML <area> element 'poly' which
// // traces out a polygon as a series of X,Y points. The final
// // coordinate closes the poly by connecting to the first
// // coordinate.
var shape = {
coord: [1, 1, 1, 20, 18, 20, 18 , 1],
type: 'poly'
};
for (var i = 0; i < wifimaplocation.length; i++) {
var wifi = wifimaplocation[i];
var myLatLng = new google.maps.LatLng(wifi[1], wifi[2], wifi[3]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
shadow: shadow,
icon: image,
shape: shape,
title: wifi[0],
zIndex: wifi[3]
});
markers.push(wifimaplocation);
var mc = new MarkerCluster(map, mcOptions, wifimaplocation);
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(wifimaplocation[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
}