如何在Openlayers中单击地图外部时激活功能+弹出窗口？ [英] How do I activate a feature + popup when clicking outside of a map in Openlayers?

问题描述

我正在重新解析已加载到地图上的KML，类似于此处的示例：
http://openlayers.org/dev/examples/sundials.html 并将其转换为可点击的列表，该列表将地图置于点击的点上，并显示该窗口的弹出窗口。

I'm re-parsing the KML that's already been loaded onto the map similar to the example here: http://openlayers.org/dev/examples/sundials.html and turning it into a clickable list that will center the map on the point clicked, and display the popup window for it.

这在Google地图中很容易实现，但我找不到任何类似的Openlayers示例。有没有更简单的方法来做到这一点？内置的我缺少的东西？

HTML ：

<ul id="locationTable">
</ul>

JS：

 htmlRows = "";
 for(var feat in features) {
     // Build details table 
     featId = features[feat].id; // determine the feature ID     
     title = jQuery(f).filter('[name=TITLE]').text();

     htmlRow = "<li><a href="javascript:selectFeature('"+featId+"');\">"+title+"</a></li>";
     htmlRows = htmlRows + htmlRow;
 }
 jQuery('#locationTable').append(htmlRows);

然后是selectFeature函数：

And then for the selectFeature function:

function selectFeature(fid) {
    for(var i = 0; i<kml.features.length;++i) {
                     if (kml.features[i].id == fid)
                         {         
                             selected = new OpenLayers.Control.SelectFeature(kml.features[i]); 
                             selected.clickFeature(); // make call to simulate Click event of feature
                             break;             
                         }
            }

        }

推荐答案

我认为你应该删除selected.clickFeature调用，而是为你的要素图层中的featureselected事件创建一个事件监听器：

I think you should remove the "selected.clickFeature" call, and instead create an event listener for the "featureselected" event in your feature layer:

OpenLayers.Layer。向量

如果您在该事件中显示弹出窗口，则只需找到它并使用现有代码选择它，然后删除行
selected.clickFeature（）;

If you display the popup in that event, you will only have to find it and select it with your existing code, and remove the line selected.clickFeature();

旁注：您的功能服务器能否以其他格式提供数据？例如WFS？不需要解析KML数据。

Sidenote: Can your feature server deliver data in other formats? WFS for instance? Parsing KML data shouldn't be needed.

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