checkInvariant destImageFile dump elementName isAttached isRoot operator!= operator== parent pathName type

ustring elementName ( ) const Get element name of node. The elementName is a string associated with each parent-child link between nodes. For a given parent, the elementName uniquely identifies each of its children. Thus, any node in a tree can be identified by a sequence of elementNames that form a path from the tree's root node (see Node::pathName for more details). Three types of nodes (the container node types) can be parents: StructureNode, VectorNode, and CompressedVectorNode. The children of a StructureNode are explicitly given unique elementNames when they are attached to the parent (using StructureNode::set). The children of VectorNode and CompressedVectorNode are implicitly given elementNames based on their position in the list (starting at "0"). In a CompressedVectorNode, the elementName can become quite large: "1000000000" or more. However in a CompressedVectorNode, the elementName string is not stored in the file and is deduced by the position of the child. Precondition: The destination ImageFile must be open (i.e. destImageFile().isOpen()). Postcondition: No visible state is modified. Returns: The element name of the node, or "" if a root node. Exceptions: E57_ERROR_IMAGEFILE_NOT_OPEN E57_ERROR_INTERNAL All objects in undocumented state See also: NodeFunctions.cpp example, Node::pathName, Node::parent, Node::isRoot