Traverse C++ files in a given folder and generate a class diagram using PlantUML. - zeerd/class-diagram ...

Using class diagrams as an example you simply drag the classes you want on a new diagram and tell it to complete all links.<BR><BR>A warning, I don't think it is cheap.

In this paper, we describe a reverse engineering tool, CPP2XMI, which allows extracting UML class, sequence, and activity diagrams in XMI format from C++ source code, and its position in the toolset ...