Here, I wanted to show how easy it is to incorporate some of these libraries.
Incorporate the Raphael Library into a Nintex Form
Store this JS file in a document library in your SharePoint farm, because you'll be pointing to it from the form.
Now that that part is done, we need to add some HTML to our page. The way to do this, would be to add a Rich Text control onto your form. When you go into the settings of this control, click inside the big edit box and you'll a ribbon appear. On that ribbon is a button called "Edit Source". This is where you add your HTML.
We can type or paste in some HTML. Then we're done.
That is all there is to it. We simply publish this form, and it should all work. "Should" :).