This constraint keeps particles inside of a defined area by positioning exiting particles on the other side of the area. In effect this makes particles that moves outside the upper bound reenter at the lower bound and vice versa.
The following parameters defines the training of the constraint and can be
passed along a call to
xlim : The left and right bound of the area
ylim : The upper and lower bound of the area
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.