Hi,

I am looking for documentation on using trailSet inside the View, or code examples.

I have found the following links
  http://www.um.es/fem/EjsWiki/Main/ElementsTrailSet2D
  http://fem.um.es/Javadoc/EJS_javadoc/index.html?org/opensourcephysics/drawing2d/ElementTrail.html
but wasn't able to deduce how to actually write code involving the elements.

Thanks in advance
Itay