[Paraview] [EXTERNAL] Re: Bug in contour filter for version 3.12 not present in 3.10

[Russell M. Taylor II]

I wonder why it makes a difference to add the elevation filter for 
you.  I don't know what that filter does.

Even when I add elevation in 3.12.0 64-bit Windows version, it only 
gives me RTdata, not Elevation, after the contour is 
applied.  Strangely, if I contour by RTData after applying Elevation 
it also gives me only RTdata and not Elevation as a choice.  Maybe it 
is just skipping one of the entries in the contour?

Thanks,
Russ

At 03:38 PM 1/31/2012, David E DeMarle wrote:
>I don't see that behavior.
>wavelet->elevation->clip->contour
>
>Regardless of which array I contour by or how many offsets I use, I
>see both Elevation and RTData in the information tab and can color by
>either one.
>
>David E DeMarle
>Kitware, Inc.
>R&D Engineer
>21 Corporate Drive
>Clifton Park, NY 12065-8662
>Phone: 518-881-4909
>
>
>
>On Tue, Jan 31, 2012 at 12:09 PM, Russell M. Taylor II
><taylorr at cs.unc.edu> wrote:
> > It turns out that the contour is computing scalars for all of the scalars
> > except the one that it contoured on.  If you only make one 
> contour, then you
> > might say that this is not an issue, but when you make multiple contours
> > with the same filter you may want to color them by the value used to make
> > the contour.  In version 3.10, it would also compute the scalar for the
> > value you contoured by when you clicked the button.
> >
> > So I guess the bug is that 3.12 does not pass through the scalar value for
> > the scalar you contoured by.  If it did that, then we'd not need 
> to push the
> > button.
> >
> > Thanks,
> > Russ
> >
> >
> > At 05:45 PM 1/30/2012, Moreland, Kenneth wrote:
> >>
> >> I believe this change is intentional.  When you run the clip filter, it
> >> turns the data set into an unstructured grid.  The unstructured version of
> >> contour always computes scalars, so that checkbox has no effect.  To
> >> demonstrate that the checkbox has no effect, it is now grayed out.
> >>
> >>
> >> -Ken
> >>
> >> On 1/30/12 2:17 PM, "David E DeMarle" <dave.demarle at kitware.com> wrote:
> >>
> >> >I see it too. I'll add it to the bug tracker.
> >> >
> >> >David E DeMarle
> >> >Kitware, Inc.
> >> >R&D Engineer
> >> >21 Corporate Drive
> >> >Clifton Park, NY 12065-8662
> >> >Phone: 518-881-4909
> >> >
> >> >
> >> >
> >> >On Fri, Jan 27, 2012 at 4:42 PM, Russell M. Taylor II
> >> ><taylorr at cs.unc.edu> wrote:
> >> >> Paraview 3.12 doesn't let me check the "Compute Scalars" box, it is
> >> >>grayed
> >> >> out, in some circumstances.
> >> >>
> >> >> Sources/Wavelet
> >> >> FIlters/Clip
> >> >> Filter/Contour
> >> >>
> >> >> The above sequence will give you the situation I am talking about.
> >> >>Version
> >> >> 3.10 of Paraview and earlier let you compute scalars.  If you can't,
> >> >>then
> >> >> you can't color by the scalar value (this is useful in the case of
> >> >>multiple
> >> >> contours).
> >> >>
> >> >>
> >> >> ---
> >> >> Russell M. Taylor II, Ph.D.
> >> >> taylorr at cs.unc.edu
> >> >> CB #3175, Sitterson Hall                        www.cs.unc.edu/~taylorr
> >> >> University of North Carolina,                     Voice: (919) 962-1701
> >> >> Chapel Hill, NC 27599-3175                        FAX:   (919) 962-1799
> >> >> _______________________________________________
> >> >> Powered by www.kitware.com
> >> >>
> >> >> Visit other Kitware open-source projects at
> >> >> http://www.kitware.com/opensource/opensource.html
> >> >>
> >> >> Please keep messages on-topic and check the ParaView Wiki at:
> >> >> http://paraview.org/Wiki/ParaView
> >> >>
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> >> >Powered by www.kitware.com
> >> >
> >> >Visit other Kitware open-source projects at
> >> >http://www.kitware.com/opensource/opensource.html
> >> >
> >> >Please keep messages on-topic and check the ParaView Wiki at:
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> >> >
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> >
> >
> > ---
> > Russell M. Taylor II, Ph.D.                           taylorr at cs.unc.edu
> > CB #3175, Sitterson Hall                        www.cs.unc.edu/~taylorr
> > University of North Carolina,                     Voice: (919) 962-1701
> > Chapel Hill, NC 27599-3175                        FAX:   (919) 962-1799

---
Russell M. Taylor II, Ph.D.                           taylorr at cs.unc.edu
CB #3175, Sitterson Hall                        www.cs.unc.edu/~taylorr
University of North Carolina,                     Voice: (919) 962-1701
Chapel Hill, NC 27599-3175                        FAX:   (919) 962-1799