Google地图:多个自定义HTML标记

Question

我一直在研究这个小提琴,我想要一些建议.

如您所见,我无法在正确的位置渲染多个标记.无论我做什么,两个标记都根据htmlMarker[i]阵列中第二个标记的位置进行渲染.

谢谢你的帮助!

供参考,这是JS:

var overlay;

function initialize() {
    var myLatLng = new google.maps.LatLng(62.323907, -150.109291);
    var mapOptions = {
        zoom: 11,
        center: myLatLng,
        mapTypeId: google.maps.MapTypeId.SATELLITE
    };

    var gmap = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);

    function HTMLMarker(lat,lng){
        this.lat = lat;
        this.lng = lng;
        this.pos = new google.maps.LatLng(lat,lng);
    }

    HTMLMarker.prototype = new google.maps.OverlayView();
    HTMLMarker.prototype.onRemove= function(){}

    //init your html element here
    HTMLMarker.prototype.onAdd= function(){
        div = document.createElement('DIV');
        div.className = "htmlMarker";
        div.innerHTML = '<img src="http://www.vcsd.org/img/icon/red.png">';
        var panes = this.getPanes();
        panes.overlayImage.appendChild(div);
    }

    HTMLMarker.prototype.draw = function(){
        var overlayProjection = this.getProjection();
        var position = overlayProjection.fromLatLngToDivPixel(this.pos);
        var panes = this.getPanes();
        panes.overlayImage.style.left = position.x + 'px';
        panes.overlayImage.style.top = position.y + 'px';
    }

    //to use it
    htmlMarker = [];
    htmlMarker[0] = new HTMLMarker(gmap.getCenter().k, gmap.getCenter().D);
    htmlMarker[1] = new HTMLMarker(gmap.getCenter().k+.05, gmap.getCenter().D+.05);
    htmlMarker[0].setMap(gmap);
    htmlMarker[1].setMap(gmap);
}

我已经更新了小提琴(请参阅更新)以在HTMLMarker()中进行一些日志记录; 并在脚本的末尾.这是输出:

HTMLMarker(lat,lng)= 62.323907, -150.10929099999998
HTMLMarker(lat,lng)= 62.373906999999996, -150.05929099999997
HTMLMarker.prototype.draw=500.5001116444473, 296.6240725676762
HTMLMarker.prototype.draw=573.3178894222365, 139.71828594914405

所以看起来正确的信息传入,但某些事情正在被覆盖.

UPDATE

我能够在地图上隔离标记HTML元素.看起来它们嵌套在一个叠加层中:

<div style="transform: translateZ(0px); position: absolute; left: 573.317889422237px; top: 139.718285949144px; z-index: 104; width: 100%;">
  <div class="htmlMarker">
    <img src="http://www.vcsd.org/img/icon/red.png">
  </div>
  <div class="htmlMarker">
    <img src="http://www.vcsd.org/img/icon/red.png">
  </div>
</div>

Answer 1

您必须设置图像的位置（或包含图像的 div）。

当前，您设置了overlayImage-pane的位置（它是单个元素，HTMLMarker 的每个实例都将附加到同一个元素/窗格中）

固定代码：

//init your html element here
HTMLMarker.prototype.onAdd= function(){
    this.div = document.createElement('DIV');
    this.div.className = "htmlMarker";
    this.div.style.position='absolute';
    this.div.innerHTML = '<img src="http://www.vcsd.org/img/icon/red.png">';
    var panes = this.getPanes();
    panes.overlayImage.appendChild(this.div);
}

HTMLMarker.prototype.draw = function(){
    var overlayProjection = this.getProjection();
    var position = overlayProjection.fromLatLngToDivPixel(this.pos);
    var panes = this.getPanes();
    this.div.style.left = position.x + 'px';
    this.div.style.top = position.y + 'px';
}

http://jsfiddle.net/q2cnne7y/17/