Geometry Boost List: [ggl] Re: Problems with the difference between two polygons

Subject: [ggl] Re: Problems with the difference between two polygons
From: Angus Johnson (awj1958)
Date: 2011-08-08 04:03:53

On 7/08/2011 8:05 PM, Barend Gehrels wrote:
> Why should you do that? Round them and then consider them as 
> duplicate? If they would be duplicate (before rounding), they would 
> not be included (since this is solved).

Actually, if I properly understand geometry of the intersection of the 
inner black trapezoid with the hexagon here (
http://boost-geometry.203548.n3.nabble.com/attachment/3232092/0/Example.svg 
), then there really should only be 4 vertices in the solution.