[vtk-developers] vtkUnstructuredGrid - Not rendering Overlapping Cells

[Bhanu Hariharan]

Thanks. I will look into the composite dataset but I do not have anything
other than hexahedrons.

I think it looks like VTKUnstructuredGrid will not render in the situation
of overlapping cells and I have to find a way out outside of VTK.



On Fri, Feb 22, 2013 at 9:28 AM, Sebastien Jourdain <
sebastien.jourdain at kitware.com> wrote:

> VTK has other type of data structure such a composite-dataset /
> multi-block which let you create a dataset that is composed of multiple
> dataset (i.e. Unstructured grid in your case).
> And what you do is basically share the same vtkPoints across all your
> unstructured grids which will then be gathered by the composite dataset.
> and rendered as a single dataset.
>
> Hope that explain a bit more,
>
> Seb
>
>
> On Fri, Feb 22, 2013 at 10:24 AM, Bhanu Hariharan <bhanu at petrotel.com>wrote:
>
>> Sebastian, I do not understand what you mean by multi-block. Could you
>> please elaborate. Thanks.
>>
>>
>> On Fri, Feb 22, 2013 at 9:20 AM, Sebastien Jourdain <
>> sebastien.jourdain at kitware.com> wrote:
>>
>>> Unless it's a multi-block and then it is not the same dataset anymore...
>>>
>>>
>>> On Fri, Feb 22, 2013 at 10:17 AM, Sebastien Jourdain <
>>> sebastien.jourdain at kitware.com> wrote:
>>>
>>>> Then I'm not sure that VTK can handle 2 cells that are based on exactly
>>>> the same points ID.
>>>>
>>>>
>>>> On Fri, Feb 22, 2013 at 10:12 AM, Bhanu Hariharan <bhanu at petrotel.com>wrote:
>>>>
>>>>> Thanks Sebastian. For the 2 cell case, I start with 16 points and
>>>>> identify duplicates and bring it down to 8 and the two cells now map to the
>>>>> same 8 nodes. In this scenario, can VTK render both cells with some flags
>>>>> turned on.
>>>>> Or can you please suggest another way.
>>>>>
>>>>> But removing duplicate nodes is a must for my application due to
>>>>> memory constraints.
>>>>>
>>>>> -Bhanu
>>>>>
>>>>>
>>>>> On Fri, Feb 22, 2013 at 9:03 AM, Sebastien Jourdain <
>>>>> sebastien.jourdain at kitware.com> wrote:
>>>>>
>>>>>> duplicate the points.
>>>>>>
>>>>>>
>>>>>> On Fri, Feb 22, 2013 at 9:59 AM, bhanu <bhanu at petrotel.com> wrote:
>>>>>>
>>>>>>> Please can anyone answer this query - is this forum active?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> View this message in context:
>>>>>>> http://vtk.1045678.n5.nabble.com/vtkUnstructuredGrid-Not-rendering-Overlapping-Cells-tp5718739p5718763.html
>>>>>>> Sent from the VTK - Dev mailing list archive at Nabble.com.
>>>>>>> _______________________________________________
>>>>>>> Powered by www.kitware.com
>>>>>>>
>>>>>>> Visit other Kitware open-source projects at
>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>
>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>> http://www.vtk.org/mailman/listinfo/vtk-developers
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtk-developers/attachments/20130222/37a64728/attachment.html>