[Paraview] nan

Aurélien Marsan aur.marsan at gmail.com
Fri Aug 20 10:00:51 EDT 2010


Hi,

If you're using python, and if you can use the numpy library, you can use
the function numpy.nan_to_num too.
http://docs.scipy.org/doc/numpy/reference/generated/numpy.nan_to_num.html#numpy.nan_to_num

Regards,

Aurélien

2010/8/20 David E DeMarle <dave.demarle at kitware.com>

> That said, the same trick may work in the standard calculator filter
> with the expression:
>
> if(val=val, val, 0.0)
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 28 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-371-3971 x109
>
>
>
> On Fri, Aug 20, 2010 at 9:26 AM, David E DeMarle
> <dave.demarle at kitware.com> wrote:
> > You might write a python filter that iterates over all floating point
> arrays and
> > replaces nan's with 0.
> >
> > According to
> http://stackoverflow.com/questions/944700/how-to-check-for-nan-in-python
> > The most py version robust way to check for nan is:
> >
> > def isNaN(num):
> >    return num != num
> >
> > David E DeMarle
> > Kitware, Inc.
> > R&D Engineer
> > 28 Corporate Drive
> > Clifton Park, NY 12065-8662
> > Phone: 518-371-3971 x109
> >
> >
> >
> > On Thu, Aug 19, 2010 at 11:24 PM, Moreland, Kenneth <kmorel at sandia.gov>
> wrote:
> >> This might not be the best solution, but you can use the threshold
> filter to
> >> remove NANs.  A NAN will always fall outside the threshold range.
> >>
> >> -Ken
> >>
> >>
> >> On 8/19/10 6:28 PM, "Scott, W Alan" <wascott at sandia.gov> wrote:
> >>
> >> Is there a way to convert nan’s to zeros in ParaView?  I have a user
> that is
> >> trying to use the integrate data filter, and it is having troubles with
> >> NANs.
> >>
> >> Thanks,
> >>
> >> Alan
> >>
> >>
> >>
> >>
> >>
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