如何通过方法删除标记，openlayers 4，angular 4

Question

我想删除 Openlayers 地图中的标记我怎样才能删除我添加到地图的所有标记针

addmarker(name:any,lat:any,lng:any){
    console.log("inside ",lat,lng,name)
    var iconFeature = new ol.Feature({
        geometry: new ol.geom.Point(ol.proj.transform([lng,lat],'EPSG:4326', 'EPSG:3857')),
        name: name
    });
    var iconStyle = new ol.style.Style({
        image: new ol.style.Icon(({
            anchor: [0.5, 46],
            anchorXUnits: 'fraction',
            anchorYUnits: 'pixels',
            opacity: 0.75,
            src: '../../assets/images/location_pin.png'
        }))
    });
    iconFeature.setStyle(iconStyle);
    var vectorSource = new ol.source.Vector({
        features: [iconFeature]
    });
    this.vector = vectorSource
    var vectorLayer = new ol.layer.Vector({
        source: vectorSource
    });
    this.vector_layer = vectorLayer
    this.map.addLayer(vectorLayer);

}

谁能帮我去掉我添加到开放图层地图上的标记针

Answer 1

this.map.removeLayer(vectorLayer);

是的，这意味着您必须跟踪您添加的所有图层。遗憾的是，开放层就是这种情况。

Answer 2

您可以使用以下解决方案删除您添加到地图的所有标记图钉：

vectorSource.clear();

如何通过方法删除标记，openlayers 4，angular 4

How to remove marker by method, openlayers 4, angular 4

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