dolfin team mailing list archive

["Ola Skavhaug" <skavhaug@xxxxxxxxx>]

On Tue, Jan 6, 2009 at 5:56 PM, Anders Logg <logg@xxxxxxxxx> wrote:
> Here's one that calls project:
>
>  demo/function/projection-interpolation/python/demo.py
>

No, this doesn't trigger project in plot.py

> And here's one that plots and object that needs to be projected before
> plotted:
>
>  demo/pde/nonlinear-poisson/python/demo.py

Ah, finally. Now I can proceed. Thanks!

Ola

>


> --
> Anders
>
>
> On Tue, Jan 06, 2009 at 05:33:39PM -0300, Ola Skavhaug wrote:
>> A demo, unit test or whatever. Something that tests this functionlity
>> of dolfin. I've run almost all demos, and I can't trigger the project
>> code. Hence, it looks dead to me.
>>
>> Ola
>>
>> On Tue, Jan 6, 2009 at 5:18 PM, Anders Logg <logg@xxxxxxxxx> wrote:
>> > On Tue, Jan 06, 2009 at 05:13:25PM -0300, Ola Skavhaug wrote:
>> >> On Tue, Jan 6, 2009 at 4:46 PM, Anders Logg <logg@xxxxxxxxx> wrote:
>> >> > On Tue, Jan 06, 2009 at 11:45:46AM -0300, Ola Skavhaug wrote:
>> >> >> On Mon, Jan 5, 2009 at 5:09 AM, Anders Logg <logg@xxxxxxxxx> wrote:
>> >> >> > On Sat, Jan 03, 2009 at 09:27:04PM -0300, Ola Skavhaug wrote:
>> >> >> >> What's the purpose of dolfin_plot? It just calls viper_plot for all
>> >> >> >> types, except when the object is unknown, in which case it tries
>> >> >> >>  to project something, without knowing what it is. This should be put
>> >> >> >> into viper instead of in this almost empty wrapper. What is the type
>> >> >> >> of object if project can handle it?
>> >> >> >
>> >> >> > The type of object is any expression like grad(u), u + u, div(u) etc.
>> >> >> > but it can also be anything else (like an int or float) that FFC can
>> >> >> > interpret as a Form. The easiest test is probably the one that's there
>> >> >> > now in plot.py (try: project).
>> >> >>
>> >> >> I don't understand. I don't see any tests where project is used. Can
>> >> >> you point me to the appropriate test?
>> >> >>
>> >> >> Ola
>> >> >
>> >> > I mean the following tests:
>> >> >
>> >> >    # Plot mesh
>> >> >    if isinstance(object, cpp.Mesh):
>> >> >        return viper_plot(object, *args, **kwargs)
>> >> >
>> >> >    # Plot mesh function
>> >> >    if isinstance(object, cpp.MeshFunctionUInt) or \
>> >> >       isinstance(object, cpp.MeshFunctionInt)  or \
>> >> >       isinstance(object, cpp.MeshFunctionReal):
>> >> >        return viper_plot(object, *args, **kwargs)
>> >> >
>> >> >    # Plot function
>> >> >    if isinstance(object, cpp.Function):
>> >> >        return viper_plot(object, *args, **kwargs)
>> >> >
>> >> >    # Try projecting function
>> >> >    from project import project
>> >> >    try:
>> >> >        print "Object cannot be plotted directly, projecting to
>> >> >        piecewise linears."
>> >> >        u = project(object)
>> >> >        return plot(u, *args, **kwargs)
>> >> >    except:
>> >> >        raise RuntimeError, ("Don't know how to plot given object and
>> >> >        projection failed: " + str(object))
>> >> >
>> >> > This tests for any object that DOLFIN knows that Viper can handle and
>> >> > otherwise tries to project the object to a Function and then calls
>> >> > Viper with the Function.
>> >> >
>> >> > So: first check for everything that Viper knows how to plot and
>> >> > otherwise try to project it.
>> >>
>> >> I know this code, but this is not a test. This is dolfin code. I'm
>> >> talking about a test of this functionality. Since object is unknown,
>> >> there is no simple way for me to test that I don't break anything when
>> >> coding.
>> >>
>> >> See?
>> >
>> > No... What kind of test do you want?
>> >
>> >
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>>
>>
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>



-- 
Ola Skavhaug