[Paraview] How to obtain the surface from points

Fri Nov 4 15:09:34 EDT 2016

I’m not entirely sure what you expect to see. It’s hard to tell from the static images, but it looks like those circles are located inside of the shape, so maybe you just cannot see them.

Although Delaunay3D won’t actively find the circles and preserve them, but based on the nature of the algorithm I would expect that the circles’ connections would become edges in the final mesh. If you are trying to see the circles in the mesh, you might try the surface with edges representation. You may also need to clip or slice through your mesh to see the circles if they are in the middle.

-Ken

From: Chathu Gunasekera <cgunases at gmail.com>
Date: Friday, November 4, 2016 at 11:52 AM
To: "Moreland, Kenneth" <kmorel at sandia.gov>
Cc: Jonathan Borduas <jonathan.borduas at caboma.com>, ParaView <paraview at paraview.org>
Subject: [EXTERNAL] Re: [Paraview] How to obtain the surface from points

Hi Kenneth, you made my day. Clean to Grid filter worked like a charm. omg, thank you so much.
I have attached the input and outputs, below.
Let me ask you one last question. How to get those circles back in the 3D model? (it shd look like a tube)

INPUT as below:
[nline image 2]

OUTPUT_1 as below (Delaunay3D Filter): (if i get those circles back in the below model, that will be awesome)
[nline image 3]

But in OUTPUT2_Delaunay2D (has those circles)
[nline image 4]

--
Warm regards,
Chathuri Gunasekera.

On Fri, Nov 4, 2016 at 7:14 PM, Moreland, Kenneth <kmorel at sandia.gov<mailto:kmorel at sandia.gov>> wrote:
That is odd. Perhaps there is point in your data that is not used in the initial geometry. Try running the Clean To Grid filter before the Delaunay filter.
-Ken

Sent from my iPad so blame autocorrect.

On Nov 3, 2016, at 10:54 PM, Chathu Gunasekera <cgunases at gmail.com<mailto:cgunases at gmail.com>> wrote:
Thank you Utkarsh and Jonathan for responding me.

In Fact, Jonathan i am clueless how to add that filter to paraview:(

Btw, i got something like this using Delauny3D filter. But there is an error (i have marked a red circle where there is no coordinate as such). Can you kindly tell me how to get rid of that point. That's the only issue that bothers me now.

--
Warm regards,
Chathuri Gunasekera.

On Fri, Nov 4, 2016 at 1:51 AM, Jonathan Borduas <jonathan.borduas at caboma.com<mailto:jonathan.borduas at caboma.com>> wrote:
Hi,

I think the filter vtkRuledSurfaceFilter is what you are looking for. However, this filter is not in the Paraview’s Filter menu.

http://www.vtk.org/doc/nightly/html/classvtkRuledSurfaceFilter.html

Cheers

From: ParaView [mailto:paraview-bounces at paraview.org<mailto:paraview-bounces at paraview.org>] On Behalf Of Utkarsh Ayachit
Sent: Thursday, November 3, 2016 3:50 PM
To: Chathu Gunasekera <cgunases at gmail.com<mailto:cgunases at gmail.com>>
Cc: ParaView <paraview at paraview.org<mailto:paraview at paraview.org>>
Subject: Re: [Paraview] How to obtain the surface from points

Alas, I am not aware of any filter in ParaView that will generate a surface from the line-source you have.

Utkarsh

On Thu, Nov 3, 2016 at 12:03 PM, Chathu Gunasekera <cgunases at gmail.com<mailto:cgunases at gmail.com>> wrote:
Thanks for your response Utkarsh.

Please see the sample data set.

Can you kindly tell me how to get a nice 3D model from this? I need to obtain the surface of the slices.

Thanks in advance.

--
Warm regards,
Chathuri Gunasekera.

On Thu, Nov 3, 2016 at 7:14 PM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com<mailto:utkarsh.ayachit at kitware.com>> wrote:
It's not exactly clear what you're looking for. Maybe if you can attach a sample dataset, it may help. Thanks.

On Thu, Nov 3, 2016 at 1:53 AM, Chathu Gunasekera <cgunases at gmail.com<mailto:cgunases at gmail.com>> wrote:
Hi,

Hope all is well.

I obtained the boundary of the 3d model.

Kindly can you assist me how to obtain the surface from points.
image is attached.
<image001.png>

--
Warm regards,
Chathuri Gunasekera.

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