javascript - 打开图层不显示给定纬度、经度中的标签

Question

我尝试将标签添加到开放图层中的点。可以看到标签，但它位于 (0,0) 点附近，而不是给定的经纬度点。

var point = new OpenLayers.Geometry.Point(lon,lat);
var label_feature = new OpenLayers.Feature.Vector(point);
    label_feature.attributes = {
        myLabel: "my label"
    };

    vector_layer.addFeatures([label_feature]);

这是矢量样式的偏移值

labelXOffset: "0",
labelYOffset: "12",

我得到了渲染器

var renderer = OpenLayers.Util.getParameters(window.location.href).renderer;
                        renderer = (renderer) ? [renderer] : OpenLayers.Layer.Vector.prototype.renderers;

谢谢

Answer 1

好的，我找到了解决方案:

您所需要的只是用投影来变换点:

var projection = new OpenLayers.Projection("EPSG:4326");
point = point.transform(projection, map.getProjectionObject());