在谷歌地图中按类型显示自定义图像标记图标

我修改了Google Maps API V3复杂图标示例https://developers.google.com/maps/documentation/javascript/examples/icon-complex从数组中提取数据，并在每个标记位置显示自定义信息窗口内容和标题。我还想根据单个项目显示特定的自定义图像图标带有不同"打开"、"关闭"、"公共"或"完整"图像图标的"位置"数组中的描述。

如何正确创建一个图像变量，该变量在创建新标记时在数组中循环，并以与标题和信息窗口相同的方式从"locations"数组中提取特定数据文本

完整的HTML和Javascript。

<script
src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=weather">  
</script>
<script type="text/javascript">

var locations =
[
  ['Coogee Beach', -33.923036, 151.259052, 5, 20, "Closed",],
  ['Cronulla Beach', -34.028249, 151.157507, 3, 50 ,"Full",],
  ['Manly Beach', -33.80010128657071, 151.28747820854187, 2, 10, "Public",],
  ['Maroubra Beach', -33.950198, 151.259302, 1, 30, "Open",]
  ];
  //json array
 function initialize() {
var myOptions = {
  center: new google.maps.LatLng(33.890542, 151.274856),
  zoom: 8,

panControl:false,
zoomControl:false,
mapTypeControl:true,
scaleControl:false,
streetViewControl:false,
overviewMapControl:false,
rotateControl:false,
mapTypeControlOptions: {
  style:google.maps.MapTypeControlStyle.DROPDOWN_MENU,
  position:google.maps.ControlPosition.BOTTOM_LEFT
},
mapTypeId: google.maps.MapTypeId.HYBRID
};
var map = new google.maps.Map(document.getElementById("default"),
    myOptions);
setMarkers(map, locations)

}

function setMarkers(map,locations){

//将标记添加到地图

//标记大小表示为大小X，Y//图像（0,0）的原点所在的位置//在图像的左上角。

//标记的原点、锚定位置和坐标//沿X方向向右增加//Y方向向下。

 var weatherLayer = new google.maps.weather.WeatherLayer({
  temperatureUnits: google.maps.weather.TemperatureUnit.FAHRENHEIT
  });
 weatherLayer.setMap(map);
 var cloudLayer = new google.maps.weather.CloudLayer();
 cloudLayer.setMap(map);


var image = new google.maps.MarkerImage('images/beachflag.png',
  // This marker is 32 pixels wide by 37 pixels tall.
  new google.maps.Size(32, 37),
  // 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 0,37.
  new google.maps.Point(0, 37));           
var shadow = new google.maps.MarkerImage('images/shadow-beachflag.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(51,37),
  new google.maps.Point(0,0),
  new google.maps.Point(0, 37));
  // 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
  //var icon = typeObject[markers1[i][3]]['icon'];
  // coordinate.
 var shape = {
      coord: [1, 1, 1, 20, 18, 20, 18 , 1],
      type: 'poly'//
  };


  var marker, i
for (i = 0; i < locations.length; i++)
 { 
 var project = locations[i][0]
 var lat = locations[i][1]
 var long = locations[i][2]
 var add =  locations[i][3]
 var complete = locations[i][4]
 var percentage = locations[i][4]

latlngset = new google.maps.LatLng(lat, long);
var marker = new google.maps.Marker({ 
      map: map,
title: project , position: latlngset, icon: image, shadow: shadow,
    });
    map.setCenter(marker.getPosition())

    var content =
    '<div id="content">'+
    '<h1 id="firstHeading" </h1>'+
    project + 
    '</h1>' +
    " # of Life Guards: " +
    add  +  
    '</h3>' +
    " | Percentage: "
    + complete;
    //infobox content
  var infowindow = new google.maps.InfoWindow()
            maxwidth:800,
google.maps.event.addListener(marker,'click',
(function(marker,content,infowindow){
    return function() {
       infowindow.setContent(content);
       infowindow.open(map,marker);
    };
  })(marker,content,infowindow));
  }
  }