问在查看器中隐藏级别Autodesk Forge

EN

const instanceTree = model.getData().instanceTree;
const rootId = instanceTree.getRootId();

function getAllDbIds(rootId, instanceTree) {
var alldbId = [];
if (!rootId) {
    return alldbId;
}
var queue = [];
queue.push(rootId);
while (queue.length > 0) {
    var node = queue.shift();
    alldbId.push(node);
    instanceTree.enumNodeChildren(
        node,
        function (childrenIds) {
            queue.push(childrenIds);
        }
    );
}

return alldbId;
};