[Imstk-developers] Line mesh connectivity

[Sreekanth Arikatla]

In cameraNavigation we don't use the line mesh from imstk but rather
directly use vtk polydata.


On Fri, Oct 27, 2017 at 10:49 AM, Milef, Nicholas Boris <milefn at rpi.edu>
wrote:

> I'm talking about the line mesh, not the wireframe. I think you use it for
> camera nav to visualize the path (at least from the video), but I might be
> wrong.
> ------------------------------
> *From:* Alexis Girault [alexis.girault at kitware.com]
> *Sent:* Friday, October 27, 2017 10:48 AM
> *To:* Sreekanth Arikatla
> *Cc:* Milef, Nicholas Boris; Hong Li; imstk-developers at imstk.org
>
> *Subject:* Re: [Imstk-developers] Line mesh connectivity
>
> Nick: are you talking about surface mesh with wireframe representation?
> Because that is different from Line mesh.
>
> Alexis Girault
> R&D Engineer in Medical Computing
> Kitware, Inc.
>
> http://www.kitware.com
> (919) 969-6990 x325
>
> On Fri, Oct 27, 2017 at 10:46 AM, Sreekanth Arikatla <
> sreekanth.arikatla at kitware.com> wrote:
>
>> We have never used the line mesh but would need it though. It makes sense
>> to fix it to use the connectivity information.
>>
>> On Fri, Oct 27, 2017 at 10:43 AM, Alexis Girault <
>> alexis.girault at kitware.com> wrote:
>>
>>> 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.
>>>>>>
>>>>>> _______________________________________________
>>>>>> Imstk-developers mailing list
>>>>>> Imstk-developers at imstk.org
>>>>>> http://public.kitware.com/mailman/listinfo/imstk-developers
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Sreekanth Arikatla, Ph.D.,
>>>>> Senior R&D Engineer,
>>>>> Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
>>>>>
>>>>> _______________________________________________
>>>>> Imstk-developers mailing list
>>>>> Imstk-developers at imstk.org
>>>>> http://public.kitware.com/mailman/listinfo/imstk-developers
>>>>>
>>>>
>>>
>>
>>
>> --
>> Sreekanth Arikatla, Ph.D.,
>> Senior R&D Engineer,
>> Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
>>
>>
>


-- 
Sreekanth Arikatla, Ph.D.,
Senior R&D Engineer,
Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
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