[Imstk-developers] Line mesh connectivity

[Alexis Girault]

I don't think we have ever used the line mesh class here (correct me if I'm
wrong Sreekanth). I think Hong wrote this.

@Hong: would you know if you were not using the connectivity information?
@Nick: whichever way, it seems we should just try to properly use it.

Alexis Girault
R&D Engineer in Medical Computing
Kitware, Inc.

http://www.kitware.com
(919) 969-6990 x325

On Fri, Oct 27, 2017 at 10:17 AM, Milef, Nicholas Boris <milefn at rpi.edu>
wrote:

> Right now, the LineMeshRenderDelegate behaves differently than the
> LineMesh geometry class implies. You can build a line mesh without
> connectivity information, and it still displays a valid line mesh.
> Meanwhile, the connectivity information seems to have no effect on the
> visual mesh itself.
> ------------------------------
> *From:* Alexis Girault [alexis.girault at kitware.com]
> *Sent:* Thursday, October 26, 2017 9:23 AM
> *To:* Sreekanth Arikatla
> *Cc:* Milef, Nicholas Boris; imstk-developers at imstk.org
> *Subject:* Re: [Imstk-developers] Line mesh connectivity
>
> LineSource is a filter that uses two points to create a PolyLine. PolyLine
> is a 1D cell. If the filter does not do enough and you need to create a
> PolyLine that goes through multiple points, you might have to create your
> own filter (just a callback really) to update a PolyLine when you add points
>
> On Thu, Oct 26, 2017, 09:19 Sreekanth Arikatla <
> sreekanth.arikatla at kitware.com> wrote:
>
>> vtkLineSource is being used inside the render delegate but I believe the
>> right one is vtkPolyLine which is meant for a line passing through a bunch
>> of points in the given order like in this example
>> <https://www.vtk.org/Wiki/VTK/Examples/Cxx/GeometricObjects/PolyLine>.
>>
>> On Wed, Oct 25, 2017 at 5:23 PM, Milef, Nicholas Boris <milefn at rpi.edu>
>> wrote:
>>
>>> Is the line mesh connectivity used for anything? I'm looking in the line
>>> mesh render delegate for VTK, and the connectivity info doesn't appear to
>>> be used anywhere.
>>>
>>> _______________________________________________
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>>> Imstk-developers at imstk.org
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>>>
>>>
>>
>>
>> --
>> Sreekanth Arikatla, Ph.D.,
>> Senior R&D Engineer,
>> Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
>>
>> _______________________________________________
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>> Imstk-developers at imstk.org
>> http://public.kitware.com/mailman/listinfo/imstk-developers
>>
>
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