|There's more than one way to do things|
would also require to draw a self loop for a node in a canvas,i.e, an edge that will start and end in the same node showing a small loop.
Isn't that simply a circle? See Tk::Canvas createOval().
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
In reply to Re^5: How to draw a curved arrow in perl Tk canvas ?