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RE: [cgal-discuss] Problems with Vector_3


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  • From: Stephen Wong <>
  • To: "" <>
  • Subject: RE: [cgal-discuss] Problems with Vector_3
  • Date: Thu, 24 Jan 2008 10:47:59 -0800
  • Accept-language: en-US, en-CA
  • Acceptlanguage: en-US, en-CA

Hi there,

If you are using an integer kernel (Gmpz) you will only be able to store
integers. I would believe that is the source of the problem - if it is,
change the number type to a floating-point type or Gmpq.

Cheers,

Stephen


-----Original Message-----
From: Jens K. Becker
[mailto:]
Sent: January-24-08 10:32 AM
To:

Subject: [cgal-discuss] Problems with Vector_3

Hi all,

I have a problem with Vector_3:

Apparently I can not initialize a Vector_3 (CGAL3.3.1, GMP and boost support)
with doubles that are between 1 and -1 (1>x<-1, 0 works though).
This is an example:
std::cout<<Vector_3(0.1,0.9,0.1) results in the output 0 0 0 1
std::cout<<Vector_3(1,1,1) results in the output 1 1 1 1

With an earlier version of CGAL that worked fine, though I am not sure
if it is
CGAl or my linux version (I changed it recently).

I have no idea what to do anymore, any ideas anybody?

Thanks for your help,

Jens

--
Dr. J.K. Becker
University of Tuebingen - Institute for Geoscience
Sigwartst. 10 - 72076 Tuebingen (Germany)
Tel.: ++49 7071 29 73139 Fax: +49 7071 5059
web: http://www.jkbecker.de

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