Re: [boost] [polygon] [GSOC] voronoi diagram of line segments

Subject: Re: [boost] [polygon] [GSOC] voronoi diagram of line segments
From: Andrii Sydorchuk (sydorchuk.andriy_at_[hidden])
Date: 2010-10-27 20:02:49

Actually I implemented predicate that gives ability to compute exact diagram
in case of voronoi of points. However I removed it from the implementation
because it slowed down algorithm seriously and required additional memory
usage. In case of voronoi of segments there might be up to 9 new predicates
required. Of course they will slow down algorithm seriously and increase
memory consumption.

On Thu, Oct 28, 2010 at 2:41 AM, Thomas Klimpel <Thomas.Klimpel_at_[hidden]
> wrote:

> Andrii Sydorchuk wrote:
> > The test configuration includes tests with 1 000 000 input points.
> > This was helpful to figure out some longrun bugs.
> > Probably you should run those tests with release option.
>
> Ah yes, benchmarking the debug version is a certainly not a good idea.
>
>
> > > I was less successful on win32. I somehow didn't manage to configure qt
> as
> > > to be able to build the example program.
> >
> > I've updated build script, you shouldn't have any troubles now.
>
> Great, it works for me now. However, I have to admit that my own mistake
> was much simpler: I added the line "using qt : /Qt/4.7.0 ;" to the "wrong"
> user-config.jam file. But I checked that your fix is really required.
>
>
> > Did you use mingw or cygwin to compile it? I am using
> > msvc 9.0 compiler on win32 and it works fine.
> > However I received the same message using cygwin + gcc.
>
> You're right, this was cygwin + gcc. I wasn't patient enough to wait for
> the results with MSVC-9 (as you mentioned before, the std debug checks can
> slow things down considerably, and MSVC-9 really takes these debug checks
> serious), but later forgot that I was using cygwin.
>
> Regards,
> Thomas
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-- 
Best regards,
Andrii Sydorchuk