Method UpdateProgress

Common/ExecutionModel/vtkAlgorithm.cxx:203–220

------------------------------------------------------------------------------ Update the progress of the process object. If a ProgressMethod exists, executes it. Then set the Progress ivar to amount. The parameter amount should range between (0,1).

// executes it. Then set the Progress ivar to amount. The parameter amount
// should range between (0,1).
void vtkAlgorithm::UpdateProgress(double amount)
{
  amount = this->GetProgressShift() + this->GetProgressScale() * amount;

  // clamp to [0, 1].
  amount = vtkMath::Min(amount, 1.0);
  amount = vtkMath::Max(amount, 0.0);

  if (this->ProgressObserver)
  {
    this->ProgressObserver->UpdateProgress(amount);
  }
  else
  {
    this->Progress = amount;
    this->InvokeEvent(vtkCommand::ProgressEvent, static_cast<void*>(&amount));
  }
}

//------------------------------------------------------------------------------
// Check to see if an input's ABORTED flag is set or if an upstream