dolfin team mailing list archive

[Patrick Riesen <priesen@xxxxxxxxxxxxxxx>]

Patrick Riesen wrote:
> Johan Hake wrote:
> > Patrick!
> >
> > On Wednesday August 4 2010 09:13:24 Patrick Riesen wrote:
> > > hello dolfin developers
> > >
> > > I write out a std::vector in XML file format from cpp. Can I read the
> > > XML file in again in python and construct a numpy array?
> > > I know how to do it with a dolfin Vector, but is it possible with a
> > > std::vector<double>? I could not figure out the syntax, i tried
> > >
> > > # this is ok
> > > fn = File("data/norm.xml")
> > > div_vec = d.Vector()
> > > a = n.array((11,1))
> > >
> > > # fails
> > > fn >> a
> > > # fails
> > > fn >> div_vec.array()
> >
> > Have you tried:
> >
> >   fn >> div_vec
> >   a = div_vec.array()
>
> yes, that gives the error:
> *** Error: Handler stack not empty. Something is wrong!

if i write out a dolfin::Vector in xml, it's all fine with:

fn = File("data/norm.xml")
div_vec = d.Vector()
fn >> div_vec
a = div_vec.array()

but if i write out a std::vector<double> in xml, I can't read it in.

regards,
patrick

> > Johan
> >
> > > thanks for the help,
> > >
> > > patrick
> > >
> > >
> > >
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>
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