This is a browser-interactive app for drawing loci of "ellipse-mounted" triangles. This includes several Poncelet families and a feel non-Poncelet ones. For details, see: https://dan-reznik.github.io/ellipse-mounted-triangles/
dan-reznik/ellipse-mounted-loci-p5js
Our interactive web app for visualization of loci of ellipse-inscribed triangles
JavaScript