[Paraview] [vtkusers] vtkDelaunay3D

[Jérôme]

Hi Alessandro,

please, reply to the list so that anyone having the answer could... well,
answers.
As you said, this is a warning, not an error. Do you get the expected
output? I get this warning when I don't give good settings to the Delaunay
filter.

Jerome

2009/10/29 Alessandro Artusi <artusialessandro4 at googlemail.com>

> Dear Pam and Jerome,
>
> thanks a lot, your emails have clarified to me many aspects.
> I have tried what you have suggested Pam, but I get this error:
>
> Generic Warning: In /build/buildd/vtk-5.0.4/Common/vtkMath.cxx, line 394
> Unable to factor linear system
>
> Delaunay return me this warning.
>
> Any suggestion?
>
> Thanks a lot again,
> Alessandro.
>
>
> On Thu, Oct 29, 2009 at 4:49 PM, pam <papereyra at gmail.com> wrote:
>
>> Hi, I don't know if you are programming on C++ if this is the case I used
>> it in this way, using a vtkUnstructuredGrid
>>
>> example
>>
>> pts=vtkPoints::New();
>>
>>   //points x-y-z
>>    pts->InsertPoint(0,1,1,1);
>>    pts->InsertPoint(1,16,10,1.25);
>>    pts->InsertPoint(2,17,11,1);
>>    pts->InsertPoint(3,20,12,1.2);
>>    pts->InsertPoint(4,15,12,1);
>>
>>  vtkUnstructuredGrid* profile = vtkUnstructuredGrid::New();   ---> or
>> could by vtkPolyData
>>    //Specify point array to define point coordinates.
>>    profile->SetPoints(pts);
>>
>> delny=vtkDelaunay3D::New();
>>    delny->SetInput(profile);
>>    delny->Update();
>>
>> Hope this helps.
>>
>>
>> Pam
>>
>>
>>
>> 2009/10/29 Alessandro Artusi <artusialessandro4 at googlemail.com>
>>
>>> Dear All,
>>>
>>>
>>> I am trying to use the vtkDelaunay3D but I am getting an error:
>>>
>>> delny = vtk.vtkDelaunay3D()
>>> delny.SetInput(p)
>>> delny.SetTolerance(0.01)
>>>
>>> where p is a vtkPoints defined as:
>>>
>>> p = vtk.vtkPoints()
>>> p.SetNumberOfPoints(elem)
>>>
>>> and I am inserting some points in p like this:
>>>
>>>  p.InsertPoint(index, x, y, z)
>>>
>>> I am getting the following error at the line delny.SetInput(p):
>>>
>>> TypeError: function takes exactly 2 arguments (1 given)
>>>
>>> But I had a look to the documentation of the class vtkDelaunay3D and
>>> SetInput takes only one argument!!!!
>>>
>>> Someone can tell me where I am mistaken?
>>>
>>> Thanks a lot.
>>> Alessandro.
>>>
>>>
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>
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