[Imstk-developers] Line mesh connectivity

[Sreekanth Arikatla]

Yes its made of lines.


On Fri, Oct 27, 2017 at 11:46 AM, Milef, Nicholas Boris <milefn at rpi.edu>
wrote:

> Is the polydata made up of lines? Or is it wireframe triangles?
> ------------------------------
> *From:* Sreekanth Arikatla [sreekanth.arikatla at kitware.com]
> *Sent:* Friday, October 27, 2017 11:12 AM
> *To:* Milef, Nicholas Boris
> *Cc:* Alexis Girault; Hong Li; imstk-developers at imstk.org
>
> *Subject:* Re: [Imstk-developers] Line mesh connectivity
>
> 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.
>
>


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