dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

On Dec 17 2009, Johan Hake wrote:

> On Wednesday 16 December 2009 23:32:04 Anders Logg wrote:
> > Thanks!
> >
> > Strange that the files were not gzipped. I thought they would be when
> > saved as foo.xml.gz from DOLFIN, but apparently not.
> >
> > Looks like a bug.
>
> No it isn't. The xml library we use automagically unzip any zipped files. 
> When we save zip files we do it by explicitly writing the strings to 
> file. We need to provide a proper zip algorithm.
>
> boost provide such frameworks with its ostream library. I is quite neat, 
> but of course it makes heavy use of templates. I used it in a previous 
> version of TriTetMesh, but abandoned it because I could not figure out 
> template related stuff. It should be quite straight forward for a C++ 
> Guru to include for our xml files.

I looked at Boost for the compressed .vtu files, and it was horrible and 
incomplete. Instead, I used zlib to compress parts of the .vtu files. It 
was pretty easy, so it should be easy to compress entire files.

Garth


> Johan
>
> > --
> > Anders
> >
> > On Thu, Dec 17, 2009 at 06:06:21AM -0000, noreply@xxxxxxxxxxxxx wrote:
> > > ------------------------------------------------------------
> > > revno: 4376
> > > committer: Johan Hake <hake.dev@xxxxxxxxx>
> > > branch nick: dolfin
> > > timestamp: Wed 2009-12-16 22:03:18 -0800
> > > message:
> > >   Updated tensor-weighted-poisson demo with new syntax for compiled
> > > Expression - Also gziped data files which were not gziped before
> > > modified:
> > >   demo/pde/tensor-weighted-poisson/python/c00.xml.gz
> > >   demo/pde/tensor-weighted-poisson/python/c01.xml.gz
> > >   demo/pde/tensor-weighted-poisson/python/c11.xml.gz
> > >   demo/pde/tensor-weighted-poisson/python/demo.py
> > >   demo/pde/tensor-weighted-poisson/python/mesh.xml.gz
> > >
> > >
> > >
> > > === modified file 
> > > 'demo/pde/tensor-weighted-poisson/python/c00.xml.gz' Binary files 
> > > demo/pde/tensor-weighted-poisson/python/c00.xml.gz 2009-12-16 13:56:35 
> > > +0000 and demo/pde/tensor-weighted-poisson/python/c00.xml.gz 
> > > 2009-12-17 06:03:18 +0000 differ === modified file 
> > > 'demo/pde/tensor-weighted-poisson/python/c01.xml.gz' Binary files 
> > > demo/pde/tensor-weighted-poisson/python/c01.xml.gz 2009-12-16 13:56:35 
> > > +0000 and demo/pde/tensor-weighted-poisson/python/c01.xml.gz 
> > > 2009-12-17 06:03:18 +0000 differ === modified file 
> > > 'demo/pde/tensor-weighted-poisson/python/c11.xml.gz' Binary files 
> > > demo/pde/tensor-weighted-poisson/python/c11.xml.gz 2009-12-16 13:56:35 
> > > +0000 and demo/pde/tensor-weighted-poisson/python/c11.xml.gz 
> > > 2009-12-17 06:03:18 +0000 differ === modified file 
> > > 'demo/pde/tensor-weighted-poisson/python/demo.py' --- 
> > > demo/pde/tensor-weighted-poisson/python/demo.py 2009-12-16 14:05:58 
> > > +0000 +++ demo/pde/tensor-weighted-poisson/python/demo.py 2009-12-17 
> > > 06:03:18 +0000 @@ -59,7 +59,7 @@
> > >    Conductivity() : Expression(3) {}
> > >
> > >    // Function for evaluating expression on each cell
> > > -  void eval(dolfin::Array<double>& values, const Data& data) const
> > > +  void eval(Array<double>& values, const Data& data) const
> > >    {
> > >      values[0] = (*c00)[data.cell().index()];
> > >      values[1] = (*c01)[data.cell().index()];
> > > @@ -67,9 +67,9 @@
> > >    }
> > >
> > >    // The data stored in mesh functions
> > > -  dolfin::MeshFunction<double>* c00;
> > > -  dolfin::MeshFunction<double>* c01;
> > > -  dolfin::MeshFunction<double>* c11;
> > > +  MeshFunction<double>* c00;
> > > +  MeshFunction<double>* c01;
> > > +  MeshFunction<double>* c11;
> > >
> > >  };
> > >  """
> > >
> > > === modified file 
> > > 'demo/pde/tensor-weighted-poisson/python/mesh.xml.gz' Binary files 
> > > demo/pde/tensor-weighted-poisson/python/mesh.xml.gz 2009-12-16 
> > > 13:56:35 +0000 and demo/pde/tensor-weighted-poisson/python/mesh.xml.gz 
> > > 2009-12-17 06:03:18 +0000 differ
>
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