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Re: Re: Re: [cgal-discuss][Nef_polyhedron]A more complex butstillsimplequestion


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  • From: "Max" <>
  • To: "" <>
  • Subject: Re: Re: Re: [cgal-discuss][Nef_polyhedron]A more complex butstillsimplequestion
  • Date: Tue, 5 Feb 2008 23:37:59 +0800
  • Disposition-notification-to: "Max" <>
  • Organization: LoadCom

>On Tue, 2008-02-05 at 22:41 +0800, Max wrote:
>> >> I know nothing about indexed item before. But it works quite well.
>> >
>> >That's good to know. Than there is an alternative to
>> >Exact_construction_excat_predicate_kernel. I'm curious about the
>> >performance.
>>
>> I've tried with both Exact_predicates_exact_constructions_kernel and
>> Exact_predicates_inexact_constructions_kernel, with
>> CGAL::SNC_indexed_items,
>> but neither even passed compile (on VS2003/SP1 or VS2005/SP1).
>
>That's not good. The SNC_indexed_items where written to make the use of
>the Exact_predicates_exact_constructions_kernel efficient. What's the
>compile error?
(I have already applied the code change you just sent to me.)
except the "CGAL_error_msg not defined" error, which I just mentioned in my
previous mail msg, I get a static assertion error in Point_3.h at line 46
(after bypassing the a.m. error by just commenting out the CGAL_error_msg
statement):

BOOST_STATIC_ASSERT((boost::is_same<Self, typename R_::Point_3>::value));

>
>Don't use inexact kernels with Nef_3.
Thanks again for this hint. And, again, if it does not exist in manual,
I recommend you add it.

B/Rgds
Max



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