Javascript 使用 OpenLayers，删除标记层和弹出窗口的正确方法是什么？
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With OpenLayers, what is the correct way of removing a markers layer, and the popups?
提问by GilShalit
LoadPin is a function to add a marker to a map. It initializes the layer on the first call. map is an openlayers map object.
LoadPin 是一个向地图添加标记的函数。它在第一次调用时初始化层。map 是一个 openlayers 地图对象。
But using map.removeLayer("markers") or "Markers", does not remove the markers from the map. I saw a mention of a destroy operation to do this but cant find that.
但是使用 map.removeLayer("markers") 或 "Markers"，不会从地图中删除标记。我看到提到要执行此操作的销毁操作，但找不到。
AND, how do I remove the popups?
而且，如何删除弹出窗口？
var markers = null
function LoadPin(LL, name, description) {
var size = new OpenLayers.Size(36, 47);
var offset = new OpenLayers.Pixel(-(size.w / 2), -size.h);
var icon = new OpenLayers.Icon('http://www.waze.co.il/images/home.png', size, offset);
if (markers == null) {
markers = new OpenLayers.Layer.Markers("Markers");
map.addLayer(markers);
}
var marker = new OpenLayers.Marker(LL, icon)
markers.addMarker(marker);
var bounds = markers.getDataExtent();
map.zoomToExtent(bounds);
map.addPopup(new OpenLayers.Popup.FramedCloud("test", LL, null,
"<div style='font-family:Arial,sans-serif;font-size:0.8em;'>" + name + "<br>" + description + "</div>",
anchor = null, true, null));
}
回答by Hamish
You can remove individual markers from a marker layer with:
您可以使用以下命令从标记层中删除单个标记：
markers.removeMarker(marker);
Removing the entire layer, with markers should be achieved with:
删除整个图层，应使用标记来实现：
markers.destroy();
You should be able to remove a popup with:
您应该能够删除弹出窗口：
map.removePopup(popup);
where popup is the Popup object created earlier.
其中 popup 是之前创建的 Popup 对象。
回答by Christophe Roussy
I know this post is old but to remove all markers from the marker layer list use:
我知道这篇文章很旧，但要从标记层列表中删除所有标记，请使用：
markerLayer.clearMarkers();
回答by Kau?
Try the any of below code i hope it will help you.
尝试以下任何代码，我希望它会帮助你。
this.markerSource.removeFeature(this.iconFeature);
or
或者
this.markerSource.removeFeature(iconFeature);
