Javascript 如何使用谷歌地图在openlayers中取消投影和重新投影多边形顶点

我想重新投影多边形的顶点。我已经能够实现这一点的边界，但有点麻烦的顶点

           function onFeatureModified(event) {
           var bounds = event.feature.geometry.getBounds();
           var answer = "bottom: " + bounds.bottom + "\n";
           answer += "left: " + bounds.left + "\n";
           answer += "right: " + bounds.right + "\n";
           answer += "top: " + bounds.top + "\n";
           alert(answer);

           var mapProjv =  map.getProjectionObject();
           var epsg4326v = new OpenLayers.Projection("EPSG:4326");
       var verticesNative = event.features[0].geometry.getVertices();
       var verticesLatLon = verticesNative.transform( mapProjv , epsg4326v  );
       var vertices = verticesNative;
           alert(verticesNative);
           }

下面是有效的代码：

           var vertices = event.features[0].geometry.getVertices();
           alert(vertices);

getVertices（）

方法返回一个包含

OpenLayers.Geometry.Point

对象的数组，因此不能对其调用

transform（）

方法。相反，您应该在数组中循环并对每个对象调用

transform（）

，如下所示：

var vertices = event.features[0].geometry.getVertices();
var transformedVertices = [];
for(var i=0; i < vertices.length; i++){
    transformedVertices.push(vertices[i].transform(
        new OpenLayers.Projection("EPSG:900913"),
        new OpenLayers.Projection("EPSG:4326")
    ));
}

//create new feature with transformed vertices

var-vertices=event.features[0].geometry.getVertices（）；
var transformedVertices=[]；
对于（var i=0；i