Re: Release candidate for Qhull 2012.1

[Tatsuro MATSUOKA]

Hello

I have built on MinGW platform.

>>>>> processing 
>>>>> e:\usr\Tatsu\mingwhome\octaves\hg\octave-work\src\DLD-FUNCTIONS\convhulln.cc
  ***** testif HAVE_QHULL
 cube = [0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1];
 [h, v] = convhulln (cube);
 assert (size (h), [6 4]); 
 h = sortrows (sort (h, 2), [1:4]);
 assert (h, [1 2 3 4; 1 2 5 6; 1 4 5 8; 2 3 6 7; 3 4 7 8; 5 6 7 8]);
 assert (v, 1, 10*eps);
!!!!! test failed
assert (size (h),[6, 4]) expected
   6   4
but got
   12    3
values do not match

The result seem to be the same as those from others.

The results of direct tests on qhull program are on MinGW are

$ rbox c | qhull i
6
4 6 2 0
1 5 4 0
5 7 6 4
3 1 0 2
7 3 2 6
3 7 5 1

$ rbox c | qhull Qt i
12
6 2 0
4 6 0
5 4 0
1 5 0
5 6 4
6 5 7
2 3 0
3 1 0
6 3 2
3 6 7
3 5 1
5 3 7

On MinGW, the situation seems to be the same as those of other platforms.

Regards

Tatsuro

--- On Sun, 2012/1/29, Brad Barber wrote:

> Hi all,
> 
> See below for the Qhull 2012.1 release candidate.  It is not deployed to 
> qhull.org, because I need feedback on the changes.   The goal of this release 
> is to clean up the builds and make them suitable to Octave, R, and other 
> users. 
> 
> If something is broken for you in Qhull 2012.1, please let me know. 
> 
> Qhull 2012.1 adds libqhull.so for Octave and other users.  This shared 
> library uses a static global data structure .   It is the same as the debian 
> build, Qhull 2009.1.  To help avoid confusion, libqhull6_p.so is the new name 
> for qhull with a dynamic global data structure (-Dqh_QHpointer).
> 
> Qhull 2012.1 fixes strict aliasing in qset.c and adds a qset test program.
> 
> Qhull 2012.1 includes a draft debian build in the 'config/' directory.  
> Someone will need to verify that it works.   As before, it produces 
> libqhull.so and the qhull executables.  It could be updated to match the 
> other builds.
> 
> A later version of Qhull may include a third interface to get rid of global 
> variables.  It would pass qh_qhT as a parameter to each function call.  There 
> would be a single source tree using a macro to enable the extra parameter.  
> There would be a third shared library, tentatively named libqhull7_t.so for 
> "threading".   If so, the C++ interface will probably switch to this library. 
>   
> 
>    http://gitorious.org/qhull/
>    http://gitorious.org/qhull/qhull/blobs/master/src/Changes.txt
>    http://www.qhull.org/download/qhull-2012.1-src-tgz.md5sum
>    http://www.qhull.org/download/qhull-2012.1-src.tgz
>    http://www.qhull.org/download/qhull-2012.1-zip.md5sum
>    http://www.qhull.org/download/qhull-2012.1.md5sum
>    http://www.qhull.org/download/qhull-2012.1.zip
> 
> Many thanks for helping with qhull.
> 
>                     --Brad
> 
>