[diagrams] #14: Circular paths

[diagrams]

#14: Circular paths
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 Reporter:  byorgey      |       Owner:     
     Type:  enhancement  |      Status:  new
 Priority:  minor        |   Milestone:     
Component:  lib          |     Version:     
 Keywords:               |  
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 Add a function to create circular/arc paths, actually using an
 approximation by Bezier curves.

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Ticket URL: <http://trac.haskell.org/diagrams/ticket/14>
diagrams <http://code.haskell.org/diagrams/>
Embedded domain-specific library for describing and rendering diagrams, illustrations, and other graphics.