Method OnTimePointChanged

Modules/PythonSegmentation/src/mitknnInteractiveTool.cpp:1459–1495

}

void mitk::nnInteractiveTool::OnTimePointChanged()
{
  // The Python session is bound to a single 3D slice extracted at the time
  // step that was active when StartSession() ran. Without a session there is
  // nothing to reconcile, and DoUpdatePreview() short-circuits when no
  // Python context exists, so we deliberately do not call the base class
  // handler (which would invoke UpdatePreview against a stale binding).
  if (!this->IsSessionRunning())
    return;

  const auto timePoint = this->GetToolManager()->GetCurrentTimePoint();

  const auto* referenceNode = this->GetToolManager()->GetReferenceData(0);
  const auto* referenceImage = referenceNode != nullptr
    ? referenceNode->GetDataAs<Image>()
    : nullptr;
  if (referenceImage == nullptr)
    return;

  const auto currentImageTimeStep = referenceImage->GetTimeGeometry()->TimePointToTimeStep(timePoint);

  const auto* workingSeg = this->GetTargetSegmentation();
  const auto currentWorkingTimeStep = workingSeg != nullptr
    ? workingSeg->GetTimeGeometry()->TimePointToTimeStep(timePoint)
    : 0;

  if (currentImageTimeStep == m_Impl->SessionReferenceDataTimeStep &&
      currentWorkingTimeStep == m_Impl->SessionWorkingDataTimeStep)
  {
    return;
  }

  this->DisableInteractor();
  this->ResetInteractions();
  this->ResetPreviewContent();
  this->EndSession();
}

bool mitk::nnInteractiveTool::IsSessionRunning() const
{