One possible process for this particular one: I want to draw a heart symbol. It's symmetric, so I can compose of two identical by mirrored halves. So I need a

One possible process for this particular one: I want to draw a heart symbol. It's symmetric, so I can compose of two identical by mirrored halves. So I need a function that looks like half a heart. Hey, that kind of looks like a parable sliced off just so... After that, it's pretty straightforward mechanical work and a little inspiration to give the whole thing volume by overlaying a sine wave with it.