Gaussian origami

There are two things you can do:

• Fold - remove every point on one side of a line, and add their mirror images on the other side.
• Unfold - keep all the existing points, and add their mirror images when reflected in a line too.

Click on a line to fold or unfold. When you're folding, the side that gets removed depends on which side of the origin your mouse is.

What patterns can you make?