[vtkusers] Boolean Operation to create a hollow cylinder

[Bill Lorensen]

You could use a vtkDiskSource followed by a LinearExtrusionFilter.

On Sat, Jan 16, 2010 at 10:51 PM, dvmorris <dvmorris at gmail.com> wrote:
>
> I would really like to create a pipe, or a ring if that makes sense. It looks
> like it can be done with a combination of clipping planes and implicit
> cylinders, but I'm not sure I know how to do that properly, I just wanted to
> see if anyone had any example of that out there before I started trying out
> different methods.
>
> Here is an example of what I would like to be able to create:
>
> http://tayloranderson.net/rocket_launcher/materials/two_inch_pvc_pipe.jpg
>
> Thanks for the quick replies,
>
> Dave
>
>
>
> David Doria-2 wrote:
>>
>> On Sat, Jan 16, 2010 at 7:45 PM, David Doria <daviddoria+vtk at gmail.com>
>> wrote:
>>> On Sat, Jan 16, 2010 at 6:37 PM, David Morris <dvmorris at gmail.com> wrote:
>>>> Is there a way to create a hollow cylinder using VTK? I assume there may
>>>> be
>>>> a way using a boolean subtraction operation, but I can't really find any
>>>> examples or documentation about this. I just want to create a hollow
>>>> cylinder, presumably by subtracting a cylinder from a larger cylinder
>>>> and
>>>> ending up with some kind of polyData object. Let me know if that makes
>>>> sense, and if this is possible using VTK.
>>>> Thanks for the help,
>>>>
>>>> --
>>>> Dave Morris
>>>>
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>>>>
>>>
>>> If I'm not mistaken, the CylinderSource makes a hollow cylinder, right?
>>>
>>> http://www.vtk.org/doc/nightly/html/classvtkCylinderSource.html#_details
>>>
>>> There is an example of how to use it here:
>>> http://www.itk.org/Wiki/VTK/Examples/CylinderSource
>>>
>>> Maybe I misunderstood what you're looking for?
>>>
>>> Thanks,
>>>
>>> David
>>>
>>
>> Or maybe by "hollow" you meant you wanted a cylinder with no ends (or
>> "caps")?
>>
>> If so, check out
>> vtkCylinderSource::CappingOff()
>>
>> Thanks,
>>
>> David
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
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>>
>
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