[vtkusers] Making tubes that looks good !

[Mathieu Malaterre]

I am not sure I understand your problem with 2 segements but did you read:

[     The number of tube sides must be greater than 3. If you wish to 
use fewer sides (i.e., a ribbon), use vtkRibbonFilter.]

HTH
mathieu


Sebastien Auclair wrote:
> No it varies because of the corners.
> If the tube is set for 3 facets, it kinds of extrude a triangle oriented on
> the point's normal.
> If you try it with a initial polyline made of only 2 segments with a 90
> degree corner, you'll see that the radius gets smaller near the corner
> because the triangle turns,... re-orient itself at each points.
> This is why adding points might do the trick !
> 
> Thanks
> _________________________
> Seb
> 
> ----- Original Message -----
> From: "Bruno Travençolo" <bant at grad.icmc.usp.br>
> To: "Sebastien Auclair" <sxa at fluent.com>
> Cc: <vtkusers at public.kitware.com>
> Sent: Wednesday, June 04, 2003 10:04 AM
> Subject: Re: [vtkusers] Making tubes that looks good !
> 
> 
> 
>>Hello,
>>
>>
>>>Making a tube out of a polyline !
>>>
>>>vtkTubeFilter makes the diameter of the tube irregular and we can't use
> 
> it.
> 
>>
>>Turn on/off the variation of tube radius with scalar value.
>>
>> The tube diameter may be irregular because it is variating proportional
>>with the scalar value ou vector. Try to use:
> 
> SetVaryRadiusToVaryRadiusOff();
> 
>>            vtkTubeFilter *tf = vtkTubeFilter::New();
>>            tf->SetVaryRadiusToVaryRadiusOff();
>>            tf->SetInput(polyline);
>>            tf->SetRadius(0.5);
>>            tf->SetNumberOfSides(5);
>>
>>bye!!
>>
>>Bruno.
>>
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-- 
Mathieu Malaterre
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