[vtkusers] Get IDs within vtkImageStencilData

[David Gobbi]

Proposed patches for VTK are at this page:
https://gitlab.kitware.com/vtk/vtk/merge_requests
And a log of accepted patches is at this page:
https://gitlab.kitware.com/groups/vtk

When my patch is ready, I'll send you a link.

 - David


On Wed, Jan 20, 2016 at 9:10 AM, Richard Brown <richard.j.brown at live.co.uk>
wrote:

> Great thanks David.
>
> Silly question, but where is gitlab?
>
> Regards,
> Richard
>
> On 19 Jan 2016, at 23:09, David Gobbi <david.gobbi at gmail.com> wrote:
>
> Hi Rich,
>
> The quick answer is no, there are no classes in VTK to do this.
>
> However, I have a class of my own called vtkImageExtractVoxels that
> almost does what you need: it creates a vtkDataArray that contains the
> the values of all of the voxels in the stencil.  It would be trivial to
> modify
> this class so it so that it gives all the IDs.
>
> Coincidentally, just 5 minutes before I saw your email, I started editing
> this class because I need it to give the (x,y,z) of all in-stencil voxels.
> So I'll get it to produce the IDs as well, and then put it on gitlab if you
> want to try it out.
>
>  - David
>
> On Tue, Jan 19, 2016 at 2:59 PM, mbcx9rb9 <richard.j.brown at live.co.uk>
> wrote:
>
>> Hi all,
>>
>> Is there any way to get a list containing the IDs of all voxels within a
>> vtkImageStencilData?
>>
>> My method at the moment for getting all the voxels in the stencil is to
>> create a vtkOBBTree and check if the centre of each voxel is inside the
>> vtkPolyData related to the stencil, but this is very slow.
>>
>> Thanks in advance for any pointers,
>> Rich
>>
>
>
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