addRoot GatingHierarchy getAncestor getChildren getDescendants getNodeDepths getNodeID getNodeProperty getParent getPopPaths getVertices tree

VertexID addRoot ( ) add empty root node to the gating tree with the name set to 'root' Returns the newly added root node Id For example: GatingHierarchy *curGh=new GatingHierarchy(); curGh->addRoot();