[vtkusers] vtkDelaunay2D example

[Sylvain Jaume]

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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