Function process

Examples/ParallelProcessing/Generic/Cxx/TaskParallelism.cxx:22–72

This function sets up properties common to both processes and executes the task corresponding to the current process

// This function sets up properties common to both processes
// and executes the task corresponding to the current process
void process(vtkMultiProcessController* controller, void* vtkNotUsed(arg))
{
  taskFunction task;
  int myId = controller->GetLocalProcessId();

  // Chose the appropriate task (see task1.cxx and task2.cxx)
  if (myId == 0)
  {
    task = task1;
  }
  else
  {
    task = task2;
  }

  // Setup camera
  vtkCamera* cam = vtkCamera::New();
  cam->SetPosition(-0.6105, 1.467, -6.879);
  cam->SetFocalPoint(-0.0617558, 0.127043, 0);
  cam->SetViewUp(-0.02, 0.98, 0.193);
  cam->SetClippingRange(3.36, 11.67);
  cam->Dolly(0.8);

  // Create the render objects
  vtkRenderWindow* renWin = vtkRenderWindow::New();
  renWin->SetSize(WINDOW_WIDTH, WINDOW_HEIGHT);

  vtkRenderWindowInteractor* iren = vtkRenderWindowInteractor::New();
  iren->SetRenderWindow(renWin);

  // This class allows all processes to composite their images.
  // The root process then displays it in it's render window.
  vtkCompositeRenderManager* tc = vtkCompositeRenderManager::New();
  tc->SetRenderWindow(renWin);

  // Generate the pipeline see task1.cxx and task2.cxx)
  vtkPolyDataMapper* mapper = (*task)(renWin, EXTENT, cam);

  // Only the root process will have an active interactor. All
  // the other render windows will be slaved to the root.
  tc->StartInteractor();

  // Clean-up
  iren->Delete();
  if (mapper)
  {
    mapper->Delete();
  }
  renWin->Delete();
  cam->Delete();
}

int main(int argc, char* argv[])
{