From FreeCAD Documentation
- Use Sourcetrail (Language extension guide) or implement something similar. Right-click → find references should zoom out to show the entire graph, and highlight the definition and its uses
- Breakpoints
- Needs a "main object occurrence" feature to force an object to appear at a specific point in the top-level directory structure (inside folders and parts and other directory-like objects), regardless of whether it is used in another operation (e.g. just because someone adds an object to a "fuse" operation doesn't mean that it should be moved to a deep nesting of transformations and disappear from the main, easily-accessed part of the tree).
- Hierarchical Edge Bundles: Visualization of Adjacency Relations in Hierarchical Data for really large graphs], hopefully we won't have graphs that large, but some insights on improving legibility are interesting and probably applicable to smaller graphs.
- Meta functions ("macros" in the LISP/Scheme programming sense) to query the graph, filter some nodes to be hidden etc.