[vtkusers] Points inside a Volume

[Bill Lorensen]

The reason I asked is that sometimes the model is the surface of a
solid model derived from an image volume. Then the inside/outside is
trivial.

Sounds like that is not your case.

Bill

On Mon, Aug 16, 2010 at 8:15 AM, Alex Southern <mrapsouthern at gmail.com> wrote:
>  At the moment partly by hand and using MATLAB, in a VTK file, for the
> purposes of getting a reliable volume.
>
> Does this make a difference?
>
> Thanks
> A.
>
> # vtk DataFile Version 3.0
> VTK L Box
> ASCII
> DATASET POLYDATA
> POINTS 12 float
> 40.0 0.0 0.0
> 0.0 0.0 0.0
> 0.0 80.0 0.0
> 80.0 80.0 0.0
> 80.0 40.0 0.0
> 40.0 40.0 0.0
> 0.0 0.0 40.0
> 40.0 0.0 40.0
> 40.0 40.0 40.0
> 80.0 40.0 40.0
> 80.0 80.0 40.0
> 0.0 80.0 40.0
> POLYGONS 20 80
> 3 3 1 2
> 3 1 3 5
> 3 5 3 4
> 3 0 1 5
> 3 7 11 6
> 3 11 7 8
> 3 11 8 10
> 3 10 8 9
> 3 7 1 0
> 3 1 7 6
> 3 11 1 6
> 3 1 11 2
> 3 11 3 2
> 3 3 11 10
> 3 3 9 4
> 3 9 3 10
> 3 9 5 4
> 3 5 9 8
> 3 5 7 0
> 3 7 5 8
>
>
> On 16/08/2010 14:13, Bill Lorensen wrote:
>>
>> How is the closed volume of triangles created?
>>
>> On Sun, Aug 15, 2010 at 5:09 PM, Alex Southern<aps at tml.hut.fi>  wrote:
>>>
>>>  The polydata comes from a closed volume of triangles.
>>>
>>> BR
>>> A.
>>>
>>> On 16/08/2010 00:06, Bill Lorensen wrote:
>>>>
>>>> Is the polydata derived from a image/volume?
>>>>
>>>>
>>>> On Sun, Aug 15, 2010 at 4:54 PM, Alex Southern<aps at tml.hut.fi>    wrote:
>>>>>
>>>>>  Hi Bill,
>>>>>
>>>>> I've thought about it a bit and i'm not quite sure what your getting
>>>>> at,
>>>>> is
>>>>> the answer staring me in the face? :D
>>>>>
>>>>> A.
>>>>>
>>>>>
>>>>>
>>>>> On 15/08/2010 23:45, Bill Lorensen wrote:
>>>>>>
>>>>>> What is the source of the polydata?
>>>>>>
>>>>>> This is a trick question...
>>>>>>
>>>>>> Bill
>>>>>>
>>>>>> On Sat, Aug 14, 2010 at 7:28 AM, Alex Southern<aps at tml.hut.fi>
>>>>>>  wrote:
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I've asked a similar question here before but Im going to ask it
>>>>>>> again
>>>>>>> slightly differently.
>>>>>>>
>>>>>>> Using VTK, What is the fastest way to find all points in a grid, (or
>>>>>>> all
>>>>>>> cubes if you think of it a another way),  that fit inside an
>>>>>>> arbitrary
>>>>>>> shaped volume of polydata?
>>>>>>>
>>>>>>> I tried vtkEnclosedPoints, it works but its very slow. Someone did
>>>>>>> suggest
>>>>>>> to me using templates does this ring any bells?
>>>>>>>
>>>>>>> Thanks
>>>>>>> Alex
>>>>>>> _______________________________________________
>>>>>>> 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
>>>>>>>
>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>>>>>
>>>>> _______________________________________________
>>>>> 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
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>>>
>>>
>> _______________________________________________
>> 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
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>
> _______________________________________________
> 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
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>