convert circle shape to octagon

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03-18-2014 02:43 AM
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Hello!

maybe someone can help me out with this problem...

I created a shapefile with circles (variing in diameter since they represent tree stems). For my hydronumerical simulations I want to "punch" them out from an existing mesh. I use triangular shapes for the mesh. That is why I need to change the circle shape to octagon so that triangels can be generated around the "hole". Is there a function in ArcMap or even AutoCad to change the shape automatically?

Thanks for any suggestions!

Cheers,
Anne
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