This app is still in development and isn't released yet by the KDE community.
Codevis is a Large Scale software visualizer, focused on C++ codebases. it
can help you identify issues and smells in your codebase. It also has an
extensive plugin interface and some preliminary scripting support.
Features:
Generate a Visualization from Pre-Existing code
Generate architectural code from a visualization
Plugin System that allows you to add missing features
Development
Utilities