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Hi David,<br><br>Thanks for making these classes, I'll try out vtkROIStencilSource after I fix this error. I must have accidentally left out the end of the error message:<br><br>ERROR: In ..\..\VTK\Common\vtkMultiThreader.cxx, line 285<br> vtkMultiThreader [605C96A0]: Error in thread creation !!!<br><br>Looking at the windows task manager, it seems like my physical memory is decreasing at a constant rate until the error occurs. I suspect that there is likely a memory leak in my code somewhere. I assume that should also account for the thread creation error.<br><br>Many Thanks,<br>Alexis Cheng<br>Electrical Engineering<br>University of British Columbia<br><br><br><br><br><br>> From: david.gobbi@gmail.com<br>> Date: Sat, 6 Nov 2010 16:09:06 -0600<br>> Subject: Re: [vtkusers] Using vtkLassooStencilSource<br>> To: acheng_1221@hotmail.com<br>> CC: vtkusers@vtk.org<br>> <br>> Hi Alexis,<br>> <br>> Thanks for trying this out. Your code for using the class is correct.<br>> <br>> For the first message, the one vtkMultiThreader.cxx, does it give any<br>> sort of error info?<br>> <br>> The second error about memory allocation is a strange one, it is<br>> complaining about allocating 1231041 bytes which is only about the<br>> size of one video frame. Try using the Windows Task Manager to see<br>> how your computer's memory use increases when you run your<br>> application.<br>> <br>> About Slicer, yes you generally should rebuild after updating VTK. To<br>> be more specific, it is only certain changes to the VTK header files<br>> that will make a rebuild necessary, but better safe than sorry.<br>> <br>> David<br>> <br>> <br>> On Sat, Nov 6, 2010 at 3:11 PM, Alexis Cheng <acheng_1221@hotmail.com> wrote:<br>> > Hi David,<br>> ><br>> > I can certainly provide an informal review of vtkLassooStencilSource and<br>> > vtkROIStencilSource, but first, I'm receiving an odd error during runtime.<br>> ><br>> > I'm using vtkLassooStencilSource and generating the stencil like this:<br>> ><br>> > vtkSmartPointer<vtkLassooStencilSource> LassooStencil =<br>> > vtkSmartPointer<vtkLassooStencilSource>::New();<br>> > LassooStencil->SetPoints(points);<br>> > LassooStencil->SetInformationInput(MTImage);<br>> ><br>> > vtkSmartPointer<vtkImageBlend> blend1 =<br>> > vtkSmartPointer<vtkImageBlend>::New();<br>> > blend1->SetStencil(LassooStencil->GetOutput());<br>> > blend1->AddInput(MTImage);<br>> > blend1->AddInput(BlackImage);<br>> ><br>> > I'm interfacing with 3D Slicer and can see the stencil within my image. It's<br>> > also running many times faster than when I generated the stencil using<br>> > vtkImplicitFunctionToStencilData. However, after several minutes, a<br>> > vtkOutputWindow pops up indicating:<br>> ><br>> > ERROR: In ..\..\VTK\Common\vtkMultiThreader.cxx, line 285<br>> > vtkMultiThreader [605C96A0]<br>> ><br>> > The above message is repeated a number of times before ending with:<br>> ><br>> > ERROR: In c:\sliver3-lib\vtk\common\vtkDataArrayTemplate.txx, line 142<br>> > vtkUnsignedCharArray [605D3490]: Unable to allocate 1231041 elements of (The<br>> > rest of the message is out of view of the window)<br>> ><br>> > This did not occur with vtkImplicitFunctionToStencilData. Do you have any<br>> > idea if this error is related to these new classes? Also, do I have to<br>> > rebuild Slicer every time I modify the VTK package?<br>> ><br>> > Thanks,<br>> > Alexis Cheng<br>> > Electrical Engineering<br>> > University of British Columbia<br>> ><br>> > _______________________________________________<br>> > Powered by www.kitware.com<br>> ><br>> > Visit other Kitware open-source projects at<br>> > http://www.kitware.com/opensource/opensource.html<br>> ><br>> > Please keep messages on-topic and check the VTK FAQ at:<br>> > http://www.vtk.org/Wiki/VTK_FAQ<br>> ><br>> > Follow this link to subscribe/unsubscribe:<br>> > http://www.vtk.org/mailman/listinfo/vtkusers<br>> ><br>> ><br> </body>
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