Subject: [ggl] Problems with the difference between two polygons
From: Barend Gehrels (barend)
Date: 2011-07-24 06:23:30
On 21-7-2011 21:40, Enrico Leoni wrote:
>> It might also be good to call boost::geometry::correct to your input
>> polygons, because they are not closed. But that does not solve your second
>> problem (maybe it solves the first).
> Using "correct" and "unique" I'm in your same situation,
The need to call "unique" is since now not necessary anymore. The
intersections take case to produce a unique set, themselves. This is
updated in Trunk.
"correct" is only necessary if your input polygons are not closed.
Alternatively you could select a polygon-type which is not closed. So in
the sample you sent earlier, it is still necessary.
I will look to the output of the second call in "difference" later.
I'm curious to the results of your benchmarks.
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