I am not sure if it's what the OP meant, but g9.js has a lot of neat interactive examples: http://omrelli.ug/g9/gallery/ http://omrelli.ug/g9/gallery/ Basicall

I am not sure if it's what the OP meant, but g9.js has a lot of neat interactive examples: http://omrelli.ug/g9/gallery/ http://omrelli.ug/g9/gallery/ Basically you write a renderer for some data and have a constraint solver (just backprop I think for g9) to solve for the best data that will render something that fits the user input.