I wrote mathematical functions that generate continuous and closed irregular-shaped curves and used them to set the outer boundaries of the maze in the Amorphous Maze program I had written previously. This resulted in more interesting looking mazes compared to those with rectangular outlines. If you want to learn more, please view video at: http://www.puz.com/cb/index.htm

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P.S.

Sorry, The title is wrong. It should have been "Amorphous Maze v 5.10" rather than "http://www.puz.com/cb/index.htm", but I'm not sure how to fix it now that I made the post.