[vtkusers] VTK in a multi-threaded application ??

[Sebastien Jourdain]

Does the contour filter not already use thread for each of its contour
value?

if not, you can create 10 vtkContourFilter in the main thread and call
Update in // then once ALL of them are done, you can merge the results and
strip it all that in the main thread...

Seb


On Tue, Aug 6, 2013 at 8:43 AM, Abhishek Gupta <abhishek at meddiff.com> wrote:

> Hello Sebastien,
>
> I am using above said classes for generating contour lines at 10 different
> level from RT-Dose data for 100+ CT-Images during initial loading.
>
> Doing them sequentially takes a bit of time. So, I thought of
> multi-threading that piece of code to generate contours for all the 10
> levels together.
>
> I did implement it and got error with vtkFiltering.dll
>
> Can you suggest which part of my code should i concentrate on, if I have
> to multi-thread it?? I can share my code, if you wish to have a look at it?
>
>
>
> On Tue, Aug 6, 2013 at 5:58 PM, Sebastien Jourdain <
> sebastien.jourdain at kitware.com> wrote:
>
>> Hi Abhishek,
>>
>> you can use all VTK in a threaded environment but VTK is NOT thread safe
>> therefore you need to understand what you are doing and if concurrency
>> arise and on what.
>>
>> So the answer is YES and NO, because it highly depends on what you are
>> doing...
>>
>> Seb
>>
>>
>> On Tue, Aug 6, 2013 at 6:44 AM, abhishek <abhishek at meddiff.com> wrote:
>>
>>> Hello Users,
>>>
>>> How can I use the following vtk classes in a multi-threaded application
>>> ??
>>>
>>> Classes that i want to use:
>>> 1. vtkImageData
>>> 2. vtkContourFilter
>>> 3. vtkStripper
>>>
>>>
>>> Regards
>>> Abhishek.
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://vtk.1045678.n5.nabble.com/VTK-in-a-multi-threaded-application-tp5722504.html
>>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>> _______________________________________________
>>> 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
>>>
>>
>>
>
>
> --
> Regards,
> *Abhishek Gupta*
> *Technical Lead*
> Meddiff Technologies Pvt. Ltd.
> Mobile: +91-9986919320
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20130806/24336b20/attachment.htm>