Use the arrow keys (up and down) to change the number of dots then press space to generate :) It's long to calculate at more than 25, be patient ^^ (more than 10 millions calculation to do before drawing, take between 3s and 10s) If you don't want to wait: https://sulfurous.aau.at/#262512892 but it have a color-problem (not the normal color, it's a more darker one)
A really huge thank to @SBissay who explain me how to do this project and make me an important block (named "calcul vectoriel cercle circonscrit" in the script).