GraphUI Scenegraph Requirements

Hi Pierre, this is your website I assume?
https://dataflowgeometry.org/about/

Nice, do you offer a permissive license to your source code and a repo?

I lately checked on some other math visualization learning stuff
after my son worked on some projects (Pi, Solarsystem, ..) in C++ ;-)

I found JMathAnim and then there is GeoGebra (not fully 'free').

I like to pick the scenegraph requirements for these applications
for the next steps on Graph (either C++ and/or Java).

Discussions welcome.