Thank you very much, Ewgenij. The trick you suggest works fine.
The povray and tikz output are also very nice; I'll try to do without jreality for now (indeed not compiled on my mac).

Thank you very much for your quick answer. Unfortunately, I tried what you say, and I don't get any output. The first time, it says "available properties insufficient to compute 'SCHLEGEL_DIAGRAM.VERTICES'" The second time, it just remains silent. Visualization via '$p->SCHLEGEL;' is still...

Hello, I use polymake 4.3 on MacOS and I'd like to process Schlegel diagrams of 4-d polytopes. I first create a 4-d polytope $p from points, then both '$p->VISUAL;' and '$p->SCHLEGEL;' open a browser window with a three.js script. Everything looks great! But how can I obtain the 3-d vertex coordinat...