Simple overlay render logic(need memory manage logic).

src/src/Common/SeriesImageSet.h

@@ -30,6 +30,15 @@ public:
 	{
         return m_image;
 	};
+    //image data
+    vtkImageData* GetOverlayData()
+    {
+        return m_OverlayImage;
+    };
+    void SetOverlayData(vtkImageData* img)
+    {
+        m_OverlayImage = img;
+    };
     //Image Properties
     ExtendMedicalImageProperties* GetProperty()
     {
@@ -39,6 +48,7 @@ public:
 	bool IntersectWorldBounds(SeriesImageSet* imageSet);
 private:
 	vtkSmartPointer <vtkImageData> m_image;
+	vtkSmartPointer <vtkImageData> m_OverlayImage;
 	ExtendMedicalImageProperties* m_property = nullptr;
 	std::string m_pUniqueID;
 };

src/src/IO/DICOM/DicomLoader.cpp

@@ -136,6 +136,9 @@ SeriesImageSet* DicomLoader::getSeriesImageSet(const std::string& uniqueID)//, D
     reader->Update();
     auto imageData = reader->GetOutput();
     SeriesImageSet* result = new SeriesImageSet((*iter),imageData);
+    if (reader->GetHasOverlay()){
+        result->SetOverlayData(reader->GetOutputOverLayData());
+    }
 //    imageData->Register(placeHolder);
     reader->Delete();
     reader = nullptr;

src/src/IO/DICOM/QDicomUtility.cpp

@@ -30,8 +30,10 @@ QPixmap DicomUtil::GetThumbnail(ExtendMedicalImageProperties *property)  {
         //将原始传输语法输入DicomImage编译类库自我解压压缩的图像
         DicomImage dcmImage(fileFormat, dset->getOriginalXfer(), CIF_MayDetachPixelData);
         unsigned long w = 100;
+
         bool flag = dcmImage.getWidth() > dcmImage.getHeight();
         DicomImage *sdcmImage = dcmImage.createScaledImage(w, 0, 0, 1);
+
         sdcmImage->setWindow(wl, ww);
         if (sample == 1) {
             uchar *data = (uchar *) sdcmImage->getOutputData(8);//按8位的位宽取数据

src/src/Rendering/Viewer/DICOMImageViewer.cxx

@@ -254,6 +254,29 @@ void DICOMImageViewer::SetInputConnection(vtkAlgorithmOutput *input) {
     this->RemoveFusionData();
 }
 
+void DICOMImageViewer::SetOverlayInputData(vtkImageData *in) {
+    auto OverlayMapper = vtkImageSliceMapper::New();
+    OverlayMapper->SliceAtFocalPointOn();
+    OverlayMapper->SliceFacesCameraOn();
+    OverlayMapper->SetInputData(in);
+    auto OverlayActor = vtkImageSlice::New();
+    vtkNew<vtkLookupTable> table;
+    table->SetNumberOfTableValues(1);
+    table->SetRange(245.5,255.5);
+    table->SetAboveRangeColor(.0, .0, .0, .0);
+    table->SetBelowRangeColor(.0, .0, .0, .0);
+    table->SetUseAboveRangeColor(1);
+    table->SetUseBelowRangeColor(1);
+    table->SetTableValue(0,0.8,0.8,0.5);
+    table->Build();
+    OverlayActor->SetMapper(OverlayMapper);
+    OverlayActor->GetProperty()->SetLayerNumber(2);
+    OverlayActor->GetProperty()->SetLookupTable(table);
+    OverlayActor->GetProperty()->SetUseLookupTableScalarRange(1);
+    this->ImageStack->AddImage(OverlayActor);
+
+}
+
 vtkTypeBool DICOMImageViewer::GetOffScreenRendering() {
     return this->RenderWindow->GetOffScreenRendering();
 }
@@ -1223,6 +1246,7 @@ void DICOMImageViewer::SetReconPlane(int plane) {
     SetSlice(0);
 }
 
+
 int DICOMImageViewer::GetReconPlane() {
     if (SlicePlane>=0) return SlicePlane;
     double projVector[4] = {.0, .0, .0, 1.0};
@@ -1233,7 +1257,6 @@ int DICOMImageViewer::GetReconPlane() {
     return ::projToPlane(ret);
 }
 
-
 void DICOMImageViewer::UpdateReconPlane() {
     // Set the camera position
     vtkCamera *cam = this->Renderer ? this->Renderer->GetActiveCamera() : nullptr;

src/src/Rendering/Viewer/DICOMImageViewer.h

@@ -105,6 +105,8 @@ public:
 
     //@}
 
+    void SetOverlayInputData(vtkImageData *in);
+
     /**
      * Set/get the slice orientation
      */

src/src/UI/Widget/ImageView/dicomimageview.cpp

@@ -155,6 +155,10 @@ void DicomImageView::loadSeries(SeriesImageSet *series) {
         .arg(time)
         .arg(series->GetProperty()->GetSeriesDescription()));
     mImageViewer->SetInputData(mSeries->GetData());
+    if(mSeries->GetOverlayData())
+    {
+        mImageViewer->SetOverlayInputData(mSeries->GetOverlayData());
+    }
     mImageViewer->SetCoordsTransformMatrix(series->GetProperty());
     mImageViewer->InitCornerInfo(series->GetProperty());
     mImageViewer->SetupImageViewer();