[vtkusers] using MultiThreader , more info

[reyes mauricio]

Hi vtkUsers!,

   I found out that if I set more threads (example: 10) I get the following 
output:
1
2
3
4
5
6
7
8
9
0

And not the value that I pass as userdata. Strange no?.Well, I'd like to use 
vtkThreads to process a vtkImageData object, I tested passing an object of 
this type to the thread function and printing the Dimensions of it, getting 
: 1 1 1 . I don't know what I'm doing wrong.

Any insight would be very appreciated,  thanks in advance .
  Mauricio



Mauricio Reyes wrote:

Hi vtkUsers,

I try to use vtkMultiThreader in a simple example like printing the data
passed to the thread, this is my code:

//some test value
int a=23;
int *pa;
pa=&a;

vtkMultiThreader *threader=vtkMultiThreader::New();
threader->SetNumberOfThreads(1);
threader->SetSingleMethod(myfunction,(int*)pa);

threader->SingleMethodExecute();
...
..

where "myfunction" is:

VTK_THREAD_RETURN_TYPE myfunction(void *arg)
{
   cout<<*((int*)arg)<<std::endl;
   return VTK_THREAD_RETURN_VALUE;
}

After executing this code, I get a zero value from the Thread, what could be
happening?
The compilation and linking are ok, so I presume that I don't have to add
any extra configuration to cmake, or am I wrong?

  Best Regards,
    Mauricio

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