Method GenerateDataForRenderer

Modules/Multilabel/src/mitkLabelSetImageVtkMapper2D.cpp:187–330

}

void mitk::LabelSetImageVtkMapper2D::GenerateDataForRenderer(mitk::BaseRenderer *renderer)
{
  LocalStorage *localStorage = m_LSH.GetLocalStorage(renderer);
  mitk::DataNode *node = this->GetDataNode();
  auto *segmentation = dynamic_cast<mitk::MultiLabelSegmentation *>(node->GetData());
  assert(segmentation && segmentation->IsInitialized());

  bool isLookupModified = localStorage->m_LabelLookupTable.IsNull() ||
    (localStorage->m_LabelLookupTable->GetMTime() < segmentation->GetLookupTable()->GetMTime()) ||
    PropertyTimeStampIsNewer(node, renderer, "org.mitk.multilabel.labels.highlighted", localStorage->m_LabelLookupTable->GetMTime()) ||
    PropertyTimeStampIsNewer(node, renderer, "org.mitk.multilabel.highlight_invisible", localStorage->m_LabelLookupTable->GetMTime()) ||
    PropertyTimeStampIsNewer(node, renderer, "opacity", localStorage->m_LabelLookupTable->GetMTime()) ||
    this->GetOpacityFactor() != localStorage->m_LastOpacityFactor;

  if (isLookupModified)
  {
    this->GenerateLookupTable(renderer);
  }

  bool isGeometryModified = (localStorage->m_LastDataUpdateTime < renderer->GetCurrentWorldPlaneGeometryUpdateTime()) ||
    (localStorage->m_LastDataUpdateTime < renderer->GetCurrentWorldPlaneGeometry()->GetMTime());

  bool rendererGeometryIsValid = true;

  // check if there is a valid worldGeometry
  if (isGeometryModified)
  {
    const PlaneGeometry* worldGeometry = renderer->GetCurrentWorldPlaneGeometry();
    rendererGeometryIsValid = worldGeometry != nullptr
      && worldGeometry->IsValid()
      && worldGeometry->HasReferenceGeometry();

    isGeometryModified = rendererGeometryIsValid
      && localStorage->m_WorldPlane.IsNotNull() && !Equal(*worldGeometry, *(localStorage->m_WorldPlane.GetPointer()));

    localStorage->m_WorldPlane = rendererGeometryIsValid ? worldGeometry->Clone() : nullptr;
  }

  const bool hasValidContent = rendererGeometryIsValid && RenderingGeometryIntersectsImage(localStorage->m_WorldPlane, segmentation->GetSlicedGeometry());
  const bool contentBecameValid = hasValidContent && !localStorage->m_HasValidContent;
  const bool contentBecameInvalid = !hasValidContent && localStorage->m_HasValidContent;

  if (contentBecameInvalid)
  {
    // set image to nullptr, to clear the texture in 3D, because
    // the latest image is used there if the plane is out of the geometry
    // see bug-13275
    for (unsigned int lidx = 0; lidx < localStorage->m_NumberOfLayers; ++lidx)
    {
      localStorage->m_ReslicedImageVector[lidx] = nullptr;
      localStorage->m_LayerMapperVector[lidx]->SetInputData(localStorage->m_EmptyPolyData);
      localStorage->m_OutlineActor->SetVisibility(false);
      localStorage->m_OutlineShadowActor->SetVisibility(false);
    }
    localStorage->m_LastDataUpdateTime.Modified();
  }

  localStorage->m_HasValidContent = hasValidContent;