Google Maps KMZ文件未在IE8和IE7中渲染

Question

我有一个带有地图的Web应用程序。我添加了一个不错的自定义地图控件，以打开和关闭地图上的不同层。目前只有两层，而且在大多数浏览器中都可以很好地工作。

除了IE8 7。打开时，所有层都没有在地图上显示。据我所知，地图正在加载kmz/kml文件（当preserveViewPort设置为false时，地图移动到正确的位置），但它们只是没有出现。一个层包含多聚线，另一层包含标记。我使用的代码如下：

function someFunction() {
    //code to initialise map etc goes here...
    var layers = [];
    //Create 1st layer
    var exchangeslayer = new google.maps.KmlLayer('http://link.to.file/exchanges.kmz'
        suppressInfoWindows: true,
        preserveViewport: true
    });
    layers.push({name: "Exchanges", layer: exchangeslayer});
    //Code to create second layer
    var nyclayer = new google.maps.KmlLayer('http://www.nyc.gov/html/dot/downloads/misc/cityracks.kml'
        suppressInfoWindows: true,
        preserveViewport: false
    });
    layers.push({name: "NY City Tracks", layer: nyclayer});
    addCustomLayerControls(layers);
}
function addCustomLayerControls(layers) {
    //there is code here that would generate the divs for the custom map control
    var container; //container is a div element created via javascript
    for (var i = 0; i < layers.length; i++) {
        this.addLayerLabelToContainer(layers[i], container);
    }
    //some more code
}
function addLayerLabelToContainer(layer, container) {
    var map; //Assume I get a reference to the map
    //some code here to make pretty labels for the map controls...
    var layerLabel; // layerLabel is a div element created via javascript
    google.maps.event.addDomListener(layerLabel, 'click', function() {
        if(layer.layer.map == null) {
            layer.layer.setMap(map);
        } else {
            layer.layer.setMap(null);
        }
    });
}

Answer 1

，因此事实证明我与CSS有关的问题。我的样式表之一是将max-width: 100%应用于所有IMG标签。这是与地图标记/各粒线一起播放的。

现在我看到了它很明显，但是当您认为问题与JavaScript有关时，它并不那么明显。因此，我将在此处留给与我犯同样错误的其他任何人。

Answer 2

如果您修改 addlayerlabeltocontainer （），则如预期的那样在IE中工作。验证它在IE 8和9中正确加载kmz。

function addLayerLabelToContainer(layer, container) {
    // var map; //Assume I get a reference to the map
    //some code here to make pretty labels for the map controls...
    var layerLabel; // layerLabel is a div element created via javascript                       
    if(layer.layer.map == null) {               
        layer.layer.setMap(map);
    } else {
        layer.layer.setMap(null);
    }
}

不需要调用AddDomListener（）。还请注意API语法：

addDomListener(instance:Object, eventName:string, handler:Function)

在 somefunction 中的语法错误也很小的修复如下：

function someFunction() {
    // var map; //assume map is initialised, I've just removed that code
    var layers = [];
    // see https://developers.google.com/maps/documentation/javascript/layers
    //Create 1st layer
    var exchangeslayer = new google.maps.KmlLayer(
    'http://kml-samples.googlecode.com/svn/trunk/kml/kmz/simple/big.kmz',
        { suppressInfoWindows: true, preserveViewport: true
        });
    layers.push( {name: "Exchanges", layer: exchangeslayer} );
    // ...
    addCustomLayerControls(layers); 
}