Gets the number of overlays in the Data Set.
Syntax
Visual Basic (Declaration) | |
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Public ReadOnly Property OverlayCount As Integer |
Visual Basic (Usage) | Copy Code |
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Dim instance As DicomDataSet
Dim value As Integer
value = instance.OverlayCount
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C# | |
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public int OverlayCount {get;} |
Managed Extensions for C++ | |
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public: __property int get_OverlayCount(); |
C++/CLI | |
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public:
property int OverlayCount {
int get();
} |
Return Value
The number of overlays in the Data Set.
Example
This example will read a DICOM dataset and update its overlay attributes and overlay image.
Visual Basic | Copy Code |
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Public Sub TestOverlay()
Dim dicomFileName As String = "C:\Program Files\LEAD Technologies, Inc\LEADTOOLS 14.5\Images\Overlay.dic"
DicomEngine.Startup()
Dim ds As DicomDataSet = New DicomDataSet()
Using (ds)
ds.Load(dicomFileName, DicomDataSetLoadFlags.None)
If ds.OverlayCount > 0 Then
Dim attributes As RasterOverlayAttributes = ds.GetOverlayAttributes(0)
If Not attributes Is Nothing Then
Dim overlayImage As RasterImage = ds.GetOverlayImage(0)
If Not overlayImage Is Nothing Then
Dim ds1 As DicomDataSet = New DicomDataSet()
Using (ds1)
ds1.Initialize(DicomClassType.DXImageStoragePresentation, DicomDataSetInitializeType.ExplicitVRLittleEndian)
ds1.SetOverlayAttributes(0, attributes, DicomSetOverlayFlags.None)
ds1.SetOverlayImage(0, overlayImage)
ds1.Save("C:\NewOverlay.dcm", DicomDataSetSaveFlags.None)
End Using
End If
End If
End If
End Using
DicomEngine.Shutdown()
End Sub |
C# | Copy Code |
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public void TestOverlay() { string dicomFileName = @"C:\Program Files\LEAD Technologies, Inc\LEADTOOLS 14.5\Images\Overlay.dic"; //Make sure to initialize the DICOM engine, this needs to be done only once //In the whole application DicomEngine.Startup(); using (DicomDataSet ds = new DicomDataSet()) { //Load DICOM File ds.Load(dicomFileName, DicomDataSetLoadFlags.None); if (ds.OverlayCount > 0) { RasterOverlayAttributes attributes = ds.GetOverlayAttributes(0); if (attributes != null) { // We can call in here methods like GetOverlayGroupNumber, IsOverlayInDataset // and GetOverlayActivationLayer to get some further infromation about the overlay //Let�s get the overlay Image, If RasterOverlayAttributes.NumFramesInOverlay //Is greater than 1 we can call GetOverlayImages to extract all the frames RasterImage overlayImage = ds.GetOverlayImage(0); if (overlayImage != null) { using (DicomDataSet ds1 = new DicomDataSet()) { ds1.Initialize(DicomClassType.DXImageStoragePresentation, DicomDataSetInitializeType.ExplicitVRLittleEndian); ds1.SetOverlayAttributes(0, attributes, DicomSetOverlayFlags.None); ds1.SetOverlayImage(0, overlayImage);//We can call SetOverlayImages if the overlay has more than one frame ds1.Save(@"C:\NewOverlay.dcm", DicomDataSetSaveFlags.None); } } } } } DicomEngine.Shutdown(); } |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
See Also