Method GetLabelMapLabels

Rendering/Core/vtkVolumeProperty.cxx:888–904

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//------------------------------------------------------------------------------
std::set<int> vtkVolumeProperty::GetLabelMapLabels()
{
  // Erase labels that were added re-assigned to null pointers
  for (auto it = this->LabelMapLabels.begin(); it != this->LabelMapLabels.end();)
  {
    if (!this->GetLabelColor(*it) && !this->GetLabelScalarOpacity(*it) &&
      !this->GetLabelGradientOpacity(*it))
    {
      it = this->LabelMapLabels.erase(it);
    }
    else
    {
      ++it;
    }
  }
  return this->LabelMapLabels;
}

//------------------------------------------------------------------------------
// Print the state of the volume property.