[vtkusers] Re: vtkTubeFilter and vtkpolyline problems

[Goodwin Lawlor]

Franke, Stephan wrote:
> 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
> 

Hi Stephan,

You could try to use vtkSplineFilter 
http://www.vtk.org/doc/release/5.0/html/a02040.html to "smooth out" your 
polylines. Also, set vtkRenderWindow::LineSmoothingOn() is to use 
antialias rendering.

hth

Goodwin