[vtkusers] vtkDelaunay2D example

[Sylvain Jaume]

You need to download VTK 5.1 (CVS) to get the fix to vtkDelaunay2D.

Sincerely,
Sylvain

Dominik Szczerba wrote:
> I am using the release version 5.0.3
> - DS
> 
> Sylvain Jaume wrote:
>> Are you sure you updated your VTK repository after I fixed vtkDelaunay2D
>> and added TestDelaunay2D (2007-06-20)?
>>
>> Sylvain
>>
>> Dominik Szczerba wrote:
>>> Well I just compiled and run the code you posted. There is nothing I can
>>> send you. On execution it says:
>>>
>>> input numPts= 16
>>> output numPts= 16
>>> output numCells= 18
>>> output numPolys= 18
>>> output numLines= 0
>>> output numVerts= 0
>>> Triangulation has 4 unconnected points
>>> ERROR: Triangulation has 4 unconnected points
>>>
>>> I did not debug any further (the thing is purely ambitional for me)
>>>
>>> - Dominik
>>>
>>> Sylvain Jaume wrote:
>>>> Hi Dominik,
>>>>
>>>> TestDelaunay2D passed on every tested platforms on the dashboard:
>>>> http://www.vtk.org/Testing/Dashboard/20070826-0300-Nightly/TestDetail/__Graphics_Testing_Cxx_TestDelaunay2D.html
>>>>
>>>>
>>>>
>>>> Do you a have a test case that fails with vtkDelaunay2D? If yes, could
>>>> you send your data to me and I will try to reproduce your case.
>>>>
>>>> Sincerely,
>>>> Sylvain
>>>>
>>>>
>>>> Dominik Szczerba wrote:
>>>>> I tried the Delaunay example out of curiosity (I use the great qhull
>>>>> for
>>>>> years) and I am sorry to report it does not work (at least the test
>>>>> itself says the test is not passed). My experience with the VTK 3-D
>>>>> Delaunay has not been a very succesful one either.
>>>>>
>>>>> I have worked out how to use qhull in C++ (qhull is a very special
>>>>> programming style...) and tested it extensively for a few years. I
>>>>> would
>>>>> be ready to share my experience, unfortunately I have no time to
>>>>> implement it as a VTK algorithm. Anyone to collaborate?
>>>>>
>>>>> - Dominik
>>>>>
>>>>> Sylvain Jaume wrote:
>>>>>> Hi Daniela,
>>>>>>
>>>>>> Example of vtkDelaunay2D can be found here:
>>>>>> http://public.kitware.com/cgi-bin/viewcvs.cgi/*checkout*/Graphics/Testing/Cxx/TestDelaunay2D.cxx?root=VTK&content-type=text/plain
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> The output is a vtkPolyData. So you need vtkPolyDataMapper, not
>>>>>> vtkDataSetMapper.
>>>>>>
>>>>>> HTH,
>>>>>> Sylvain
>>>>>>
>>>>>> Daniela Castelluccia wrote:
>>>>>>>  Hi Sylvain,
>>>>>>> I'm trying with vtkDelaunay2D ( which makes triangles ) usign the
>>>>>>> BoundaryTriangulation method:
>>>>>>>
>>>>>>> vtkFeatureEdges feature
>>>>>>> feature SetInput originalPolydata
>>>>>>> feature BoundaryEdgesOn
>>>>>>> feature FeatureEdgesOff
>>>>>>> feature NonManifoldEdgesOff
>>>>>>> feature ManifoldEdgesOff
>>>>>>>
>>>>>>>
>>>>>>> vtkDelaunay2D del
>>>>>>> #vtkDelaunay3D del
>>>>>>>     del SetInput [feature GetOutput]
>>>>>>>     del BoundingTriangulationOn
>>>>>>>     del SetTolerance 0.001
>>>>>>>     del SetAlpha10.0
>>>>>>>
>>>>>>> vtkDataSetMapper map
>>>>>>>     map SetInput [del GetOutput]
>>>>>>>  
>>>>>>> vtkActor triangulation
>>>>>>>     triangulation SetMapper map
>>>>>>>     [triangulation GetProperty] SetColor 1.0 0.49 0.25
>>>>>>>  
>>>>>>> #vtkPolyDataMapper mapper
>>>>>>> #mapper SetInput originalPolydata
>>>>>>> #vtkActor original
>>>>>>> #    original SetMapper mapper
>>>>>>> #   [original GetProperty] SetColor 1.0 0.0 0.0
>>>>>>>
>>>>>>> vtkRenderer ren1
>>>>>>> vtkRenderWindow renWin
>>>>>>>     renWin AddRenderer ren1
>>>>>>> vtkRenderWindowInteractor iren
>>>>>>>     iren SetRenderWindow renWin
>>>>>>>
>>>>>>>
>>>>>>> ren1 AddActor triangulation
>>>>>>> #ren1 AddActor original
>>>>>>> ren1 SetBackground 1 1 1
>>>>>>> renWin SetSize 900 900
>>>>>>> renWin Render
>>>>>>>
>>>>>>> wm withdraw .
>>>>>>>
>>>>>>>
>>>>>>> How can I set the right parameters for Delaunay trinagulation?
>>>>>>> Have you some examples?
>>>>>>>  
>>>>>>>
>>>>>>>
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>