[vtkusers] Boolean Operation to create a hollow cylinder

[dvmorris]

That's perfect. Man there are so many classes in VTK it's hard to figure out
what they all do. Thanks for your help,

Dave


Bill Lorensen-2 wrote:
> 
> 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
>>> _______________________________________________
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>>
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> _______________________________________________
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