Method ComputeNumbers

Common/DataModel/vtkGenericAttributeCollection.cxx:365–402

------------------------------------------------------------------------------ Description: Compute number of components, max number of components and actual memory size.

// Compute number of components, max number of components and actual memory
// size.
void vtkGenericAttributeCollection::ComputeNumbers()
{
  if (this->GetMTime() > this->ComputeTime)
  {
    int nb = 0;
    int pnb = 0;
    int count;
    int maxNb = 0;
    unsigned long memory = 0;
    int firstComponentIndex = 0;

    int c = this->GetNumberOfAttributes();

    for (int i = 0; i < c; ++i)
    {
      count = this->GetAttribute(i)->GetNumberOfComponents();
      memory = memory + this->GetAttribute(i)->GetActualMemorySize();
      maxNb = std::max(count, maxNb);
      nb += count;
      if (this->GetAttribute(i)->GetCentering() == vtkPointCentered)
      {
        pnb += count;
        this->AttributeIndices->Vector[i] = firstComponentIndex;
        firstComponentIndex = firstComponentIndex + count;
      }
    }
    this->NumberOfComponents = nb;
    this->NumberOfPointCenteredComponents = pnb;
    this->MaxNumberOfComponents = maxNb;
    this->ActualMemorySize = memory;

    assert("check: positive_number" && this->NumberOfComponents >= 0);
    assert("check: positive_point_centered_number" && this->NumberOfPointCenteredComponents >= 0);
    assert("check: positiveMaxNumber" && this->MaxNumberOfComponents >= 0);
    assert("check: valid_number" && this->MaxNumberOfComponents <= this->NumberOfComponents);
    this->ComputeTime.Modified();
  }
}

//------------------------------------------------------------------------------
// *** ALL THE FOLLOWING METHODS SHOULD BE REMOVED WHEN vtkInformation