Parsing Hierarchical Component Diagrams

[kvanapal]

Hi
I am using Draw.io for depicting our hierarchical UML Component diagrams.
We are then parsing the XML using mxGraph Java based APIs for further processing. What we are realizing is that the hierarchy of Component within a Component within a Component and so on which we visually see is NOT expressed in the XML. The XML does NOT really capture the hierarchy. The hierarchy of component is only a visual perception based on size and location of the Component boundaries.

Is my understanding correct?