[Paraview-developers] Accessing Delaunay3D filter inside my reader plugin.

[Chiranjib Sur]

This part of the example describes about the input connection, ports etc

 // Generate a mesh from the input points. If Alpha is non-zero, then
  // tetrahedra, triangles, edges and vertices that lie within the
  // alpha radius are output.
  vtkSmartPointer<vtkDelaunay3D> delaunay3DAlpha =
    vtkSmartPointer<vtkDelaunay3D>::New();
  delaunay3DAlpha->SetInputConnection (cleaner->GetOutputPort());
  delaunay3DAlpha->SetAlpha(0.1);


VTK pipeline is the place you need to explore (
http://www.vtk.org/Wiki/VTK/Tutorials/New_Pipeline).

Chiranjib

On Sun, Jul 31, 2016 at 10:55 PM, sumeet kumar <sumeet.kumar507 at gmail.com>
wrote:

> Hi Chiranjib,
>
> I already saw this example. This example assumes that I have a* .vtp file
> . *
>
> But actually I have a hdf5 file where I have all the relevant data in my
> format. With that I create a unstructured mesh  <vtkUnstructuredGrid> of
> points and now want to use that point data to generate the Delaunay3D mesh.
> Which means I already have a cloud of points with me in <
> <vtkUnstructuredGrid>  object. Now I want to use this object to create a
> Delaunay3D mesh.  Basically what I do not understand is how to deal with
> input connection, output ports etc.. or is there any simple way to deal
> with this.
>
>
> Sumeet
>
> On Sun, Jul 31, 2016 at 10:17 AM, Chiranjib Sur <sur.chiranjib at gmail.com>
> wrote:
>
>> Hi Sumit,
>> Have you explored the examples for Delaunay3D in vtk. The example given
>> here (http://www.vtk.org/Wiki/VTK/Examples/Cxx/Modelling/Delaunay3D) has
>> all the details about how to use this filer inside your C++ code.
>> If you have already seen it then post some more details about your
>> problem.
>>
>> Best wishes,
>> Chiranjib
>>
>> On Sat, Jul 30, 2016 at 12:43 PM, sumeet kumar <sumeet.kumar507 at gmail.com
>> > wrote:
>>
>>>
>>> I am writing a reader plug-in which reads a hdf5 file and creates a
>>> unstructured mesh of nodes & elements and also unstructured mesh of only
>>> gauss points.
>>> The next what I want to do is to take this unstructured mesh of points
>>> and generate a Delaunay3D mesh.
>>> I can achieve the same in Paraview during rendering (in the GUI phase).
>>> But I want to achieve this inside the c++ code automatically. Basically I
>>> want to use the unstructured mesh <vtkUnstructuredGrid> of points to
>>> generate the Delaunay3D mesh (vtkUnstructuredGrid) and save it for further
>>> exploitation .
>>>
>>>
>>> Best
>>> Sumeet
>>>
>>> --
>>>
>>> Sumeet Kumar Sinha
>>> Graduate Student
>>> Phone: (+1)  <%28%2B91%29%209910516219>5306018271
>>> Website : http://www.sumeetsinha.in/
>>>
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>
>
> --
>
> Sumeet Kumar Sinha
> Graduate Student
> Phone: (+1)  <%28%2B91%29%209910516219>5306018271
> Website : http://www.sumeetsinha.in/
>
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