SkylineGlobe6.5遍历信息树节点方法

//-------------------
//searchGeometries
function searchGeometries2(parentNode, callbackFunc) {
    SGWorld.ProjectTree.EnableRedraw(0);
    searchGeometriesLeaf2(parentNode, callbackFunc);
    SGWorld.ProjectTree.EnableRedraw(1);
}
//-------------------
// searchGeometries
function searchGeometriesLeaf2(parentNode, callbackFunc) {

    if (SGWorld.ProjectTree.IsLayer(parentNode))  // Layer
    {
        var layer = SGWorld.ProjectTree.GetLayer(parentNode);
        var featureGroups = layer.FeatureGroups;
        for (var i = 0; i < featureGroups.Count; i++) // Traverse all sub-layers
        {
            var featureGroup = featureGroups.Item(i);
            var altitudeType = AltitudeMethodToAltitudeType(featureGroup.GetProperty("Altitude Method"));
            var features = featureGroup.Features;
            for (var j = 0; j < features.Count; j++) {
                var ret;
                if (featureGroup.GeometryType != 0)
                    ret = callbackFunc(features.Item(j).Geometry, featureGroup.GeometryType, altitudeType);
                else {
                    if (features.Item(j).Geometry.GeometryType == 0) // Point
                    {
                        var position = SGWorld.Creator.CreatePosition(features.Item(j).Geometry.X, features.Item(j).Geometry.Y, features.Item(j).Geometry.Z);
                        ret = callbackFunc(position, featureGroup.GeometryType, altitudeType);
                    }
                }
                if (!ret)
                    return;
            }
        }
    }
    else {
        var node = SGWorld.ProjectTree.GetNextItem(parentNode, 11);
        while (node != "") {
            if (SGWorld.ProjectTree.IsGroup(node) || SGWorld.ProjectTree.IsLayer(node))
                searchGeometriesLeaf2(node, callbackFunc);
            else {
                var Object = SGWorld.Creator.GetObject(node);
                if (Object != null) {
                    var altitudeType = Object.Position.AltitudeType;
                    var ret;
                    if (Object.ObjectType == 1 || Object.ObjectType == 2)
                       ret = callbackFunc(Object.Geometry, Object.ObjectType, altitudeType);
                    else
                        ret = callbackFunc(Object.Position, Object.ObjectType, altitudeType);

                    if (!ret)
                        return;
                }
            }

            node = SGWorld.ProjectTree.GetNextItem(node, 13);
        }
    }
}