[vtkusers] Fwd: vtkTubeFilter Side/Border Thickness

[Fauze Polpeta]

Hi;

I will try that and let you know the results.

If it works fine I will certainly try to add this to vtkTubeFilter.

Thank you very much.

Fauze

On Thu, Apr 8, 2010 at 2:13 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
> On Thu, Apr 8, 2010 at 1:08 PM, Fauze Polpeta <fauze.polpeta at gmail.com> wrote:
>> Hi David;
>>
>> I did as you suggested: 2 tube filters, one external (greater) and one internal.
>>
>> I turned capping on for the external one, and keep the internal with
>> capping off. However the capping on of the external tube has visually
>> overlap the internal tube. So I'm not able to have may "cookie" walled
>> ring. In other words, it seems like I have a single tube filter (the
>> external) with capping on.
>>
>> What you mean with "and do some trickery to clip the cap of the first tube" ?
>>
>> Best Regards
>>
>> Fauze
>
> Here is one "trick" I could imagine -
>
> Call the two cylinders you have so far C1 (inner cylinder, with radius
> R1, capping off) and C2 (outer cylinder, radius R2, capping on).  Make
> another cylinder (C3) with radius R1 and make it slightly longer than
> C1 and C2. Then use something like:
> http://www.vtk.org/Wiki/VTK/Examples/ImplicitDataSet to cut away the
> geometry that lies inside C3. This should leave you with the shape you
> are looking for.
>
> If you're brave, you can try to add something like this to
> vtkTubeFilter so you can just do a SetThickness and all this mess is
> done automatically. It seems like a reasonable thing to add to VTK.
>
> Thanks,
>
> David
>