Re: qh_new_qhull calling conventions

[marco atzeri]

On 2/1/2012 8:18 AM, marco atzeri wrote:
> On 2/1/2012 7:16 AM, Tatsuro MATSUOKA wrote:
> > Hello
> >
> > --- On Wed, 2012/2/1, Rik wrote:
> >
> > > Octave Maintainer's:
> > >
> > > This should be solved before the 3.6.1 release. Does anybody have a good
> > > way to create a throw-away FILE pointer?
> > >
> > > The "/dev/null" solution would be fine except I'm not certain it
> > > would work
> > > on MinGW and Cygwin platforms. My little bit of a web search seemed to
> > > indicate that they DO implement this special file.
> > >
> > > Otherwise, we could always use fopen with a temporary file name created
> > > through tmpnam and then delete it afterwards but this seems like a
> > > lot of
> > > work for every convhull, voronoi, or delaunay call.
> > >
> > > I've attached my test case and Makefile. On my machine I had Qhull2009
> > > installed by the package manager in /usr and Qhull2012 installed by
> > > hand in
> > > /usr/local and used -L options to flip between the two.
> > >
> > > --Rik
> > Hello
> >
> >
> > I have install qhull-2009 to /home/octaves/qhull-2009 and tried to
> > build the test executable files.
> >
> > However,
> > $ make -i
> > g++ -o qhulltst2012 -DQ2012 -I/c/Programs/OctaveLibs/include -lqhull
> > -L/c/Programs/OctaveLibs/lib qhulltst.cc
> > g++ -o qhulltst2009 -lqhull -I/home/octaves/qhull-2009/include
> > -L/home/octaves/qhull-2009/lib qhulltst.cc
> > C:\Users\Tatsu\AppData\Local\Temp\cciYy8su.o:qhulltst.cc:(.text+0x10f): 
> > undefined
> > reference to `qh_new_qhull'
> > C:\Users\Tatsu\AppData\Local\Temp\cciYy8su.o:qhulltst.cc:(.text+0x11d): 
> > undefined
> > reference to `qh_qh'
> > collect2: ld returned 1 exit status
> > make: [qhulltst2009] Error 1 (ignored)
> > g++ -o qhulltst2009FIX -DQ2009FIX -lqhull
> > -I/home/octaves/qhull-2009/include -L/home/octaves/qhull-2009/lib
> > qhulltst.cc
> > C:\Users\Tatsu\AppData\Local\Temp\ccu80uJ3.o:qhulltst.cc:(.text+0x11f): 
> > undefined
> > reference to `qh_new_qhull'
> > C:\Users\Tatsu\AppData\Local\Temp\ccu80uJ3.o:qhulltst.cc:(.text+0x12d): 
> > undefined
> > reference to `qh_qh'
> > collect2: ld returned 1 exit status
> > make: [qhulltst2009FIX] Error 1 (ignored)
> >
> > I could not get executable files linked with qhull-2009.
> > Am I wrong?
> >
> > Regards
> >
> > Tatsuro
>
> -lqhull should be moved at the end
> -----------------------------------------------------
> qhulltst2012:
> g++ -o $@ -DQ2012 -I/usr/local/include/ -L/usr/local/lib qhulltst.cc
> -lqhull
>
> qhulltst2009:
> g++ -o $@ qhulltst.cc -lqhull
>
> qhulltst2009FIX:
> g++ -o $@ -DQ2009FIX qhulltst.cc -lqhull
> ---------------------------------------------------------
>
> with that on cygwin
>
> $ ./qhulltst2009.exe
> Options selected for Qhull 2010.1 2010/01/14:
> run-id 104171881 Qtriangulate incidence _pre-merge _zero-centrum
> _max-width 1 Error-roundoff 1.4e-15 _one-merge 9.7e-15
> _near-inside 4.9e-14 Visible-distance 2.8e-15 U-coplanar-distance 2.8e-15
> Width-outside 5.5e-15 _wide-facet 1.7e-14
> Number of facets: 6
>
> $ ./qhulltst2009FIX.exe
> Options selected for Qhull 2010.1 2010/01/14:
> run-id 104339951 Qtriangulate incidence _pre-merge _zero-centrum
> _max-width 1 Error-roundoff 1.4e-15 _one-merge 9.7e-15
> _near-inside 4.9e-14 Visible-distance 2.8e-15 U-coplanar-distance 2.8e-15
> Width-outside 5.5e-15 _wide-facet 1.7e-14
> Number of facets: 12
>
> I have not yet built a Qhull 2012

here is with Qhull 2012

$ ./qhulltst2012.exe
Options selected for Qhull 2012.1 2012/01/26:
  run-id 1885915565  Qtriangulate  incidence  _pre-merge  _zero-centrum
  _max-width  1  Error-roundoff 1.4e-15  _one-merge 9.7e-15
  _near-inside 4.9e-14  Visible-distance 2.8e-15  U-coplanar-distance 
2.8e-15
  Width-outside 5.5e-15  _wide-facet 1.7e-14
Number of facets: 12

Regards
Marco