|Think about Loose Coupling|
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'
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In reply to Re^5: How to draw a curved arrow in perl Tk canvas ?