Install gammaray-plugin-objectvisualizer by entering the following commands in the terminal:
sudo apt update sudo apt install gammaray-plugin-objectvisualizer
Description:
QObject hierarchy visualization plugin for GammaRay
This plugin can visualize parent-child relationships of QObjects in a form of planar or 3D acyclic graph. Multiple graph layout algorihtms are available. . Also, for use with 3D glasses, various types of stereoscopic rendering are supported.
Homepage: http://www.kdab.com/gammaray
Version: 2.7.0-1ubuntu8
Section: universe/devel