[vtkusers] vtkTubeFilter and vtkpolyline problems

[Dominik Szczerba]

dont you need extract surface and then linewidth?
--ds

Ugur BOZKAYA wrote:
> I am not sure if this is the correct answer but you might check the
> following. You can change the width of a line(it should be only in OpenGL)
> by first getting the corresponding actors vtkProperty and setting the
> SetLineWidth method. This way you do not need to use tubefilter. Also
> another solution can be to use vtkOutlineFilter if the boundary is
> rectangular and apply the same solution. I did not implement the above so I
> am not sure about it.
> Hope this helps
> 
> Ugur BOZKAYA
> 
> 
> 
>>
>>>
>>>>
>>>> ----- Original Message ----- From: <David.Pont at ensisjv.com>
>>>> To: "Franke, Stephan" <Stephan.Franke at inpro.de>
>>>> Cc: <vtkusers at vtk.org>
>>>> Sent: Wednesday, March 22, 2006 10:37 PM
>>>> Subject: Re: [vtkusers] vtkTubeFilter and vtkpolyline problems
>>>>
>>>>
>>>> "Franke, Stephan" <Stephan.Franke at inpro.de>g wrote on 23/03/2006
>>>> 00:28:07:
>>>>
>>>>> Hi all,
>>>>>
>>>>> Long time ago that this question was posted inside this forum, but I
>>>>> have the same problem and could not find an answer with a solution
>>>>> for this problem here.
>>>>> So I want to ask this question once again in hope to get a solution.
>>>>> Thank you in advance for your help.
>>>>>
>>>>> Best regards,
>>>>> Stephan Franke
>>>>>
>>>>>
>>>>> OLD POST
>>>>> -------------------------------------------------------------------------
>>>>>
>>>>> Hi all,
>>>>>
>>>>> I am writing a program where I would like to display a boundary. The
>>>>> boundary must be like a thick line.
>>>>> If I use a polyline I get, when the line thickness is larger then 1,
>>>>> nasty looking joints at the vertices and if I use the tubefilter the
>>>>> thickness of the tube is not constant especially there where I have
>>>>> sharp angles.
>>>>>
>>>>> Are there any options I can use to overcome these problems?
>>>>> Thank you
>>>>>
>>>>>
>>>> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
>>>>
>>>>
>>>>>
>>>>> Dipl. Ing.  Stephan Franke
>>>>> Arbeitsfeld Aufbau (AB)
>>>>> Umform- und Fügesimulation
>>>>>
>>>>> INPRO Innovationsgesellschaft für
>>>>> fortgeschrittene Produktionssysteme
>>>>> in der Fahrzeugindustrie mbH
>>>>> Hallerstraße 1, D-10587 Berlin
>>>>>
>>>>> Telefon:  +49 (0)30 399 97-278
>>>>> Fax:         +49 (0)30 399 97-117
>>>>> E-Mail:     Stephan.Franke at inpro.de
>>>>> Web:        www.inpro.de
>>>>>  _______________________________________________
>>>>> This is the private VTK discussion list.
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>>>>
>>>>
>>>>
>>>> You could use vtkImplicitModeller and vtkContourFilter on a
>>>> polyline. In
>>>> theory this will give tubes with constant radius and 'smooth' joins.
>>>> But
>>>> with SampleDimensions high enough to get adequate resolution on
>>>> relatively
>>>> narrow 'tubes' it could be very slow!
>>>>
>>>>    Dave P
>>>>
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>>>
>>>
>>
> 
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> s

-- 
Dominik Szczerba, Dr.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi