Geometry Boost List: [geometry] union 2d

Subject: [geometry] union 2d
From: xoru (xoru_at_[hidden])
Date: 2017-12-19 08:39:58

Hello,
What I can start using union 2d?
For example I have a 7 boxs. How add (union) all rectangles and get
one rectangle and hole inside?
 
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I'm beginer. Where is any example with makefile and tutorial?
 
Thanks
Xor