[Paraview] PV4.10 extracting a surface

[Andy Bauer]

The Threshold filter works by selecting cells that have cell data in the
selected range. If you're requesting to do thresholding on a point data
array then it will use the point data to cell data filter to create a cell
data array and threshold on that. With this, it's very unlikely that any
cell data ends up with exactly a value of .1. It sounds like what you want
is to use the Contour filter on your rad array.

On Wed, Dec 20, 2017 at 10:32 AM, Utkarsh Ayachit <
utkarsh.ayachit at kitware.com> wrote:

> I believe you're getting  the warning because the threshold ended up
> not producing any output. If you can attach the state/data file, I may
> be able to can give more info.
>
> Utkarsh
>
> On Wed, Dec 20, 2017 at 10:15 AM, Stephen Wornom
> <stephen.wornom at inria.fr> wrote:
> > The geometry is a cylinder.
> > Using the calculator I do
> > rad =sqrt( x**2+y**2)
> > I would like to extract the cylinder surface which is rad = 0.1
> > I click on threshold then information to see rad 0.1<rad<7
> > I click on extract and enter the values min = 0.1 and max 0.1 for rad
> > I get this message
> > warning: In
> > /home/utkarsh/Dashboards/MyTests/NightlyMaster/
> ParaViewSuperbuild-Release/paraview/src/paraview/
> ParaViewCore/ServerManager/Rendering/vtkSMPVRepresentationProxy.cxx,
> > line 279
> >
> > vtkSMPVRepresentationProxy (0x359fd080): Could not determine array range.
> >
> >
> > Any ideas to the solution of my problem?
> > Thanks in advance,
> > Stephen
> >
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