LEADTOOLS Medical (Leadtools.Dicom assembly)

GetOverlayAttributes Method

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The zero-based index of the overlay whose attributes are required.
Retrieves the attributes of the overlay at the specified index.
Syntax
public RasterOverlayAttributes GetOverlayAttributes( 
   int index
)
'Declaration
 
Public Function GetOverlayAttributes( _
   ByVal index As Integer _
) As RasterOverlayAttributes
'Usage
 
Dim instance As DicomDataSet
Dim index As Integer
Dim value As RasterOverlayAttributes
 
value = instance.GetOverlayAttributes(index)
public RasterOverlayAttributes GetOverlayAttributes( 
   int index
)

            
public RasterOverlayAttributes getOverlayAttributes(int index)
 function Leadtools.Dicom.DicomDataSet.GetOverlayAttributes( 
   index 
)
public:
RasterOverlayAttributes^ GetOverlayAttributes( 
   int index
) 

Parameters

index
The zero-based index of the overlay whose attributes are required.

Return Value

The overlay attributes.
Remarks
Most of the members of Leadtools.RasterOverlayAttributes are based on the "Overlay Plane Module Attributes" in the DICOM standard.

If the overlay data is embedded in the "Image Pixel Data" (7FE0,0010), Leadtools.RasterOverlayAttributes.UseBitPlane will be set to true. If Leadtools.RasterOverlayAttributes.UseBitPlane is false, then the overlay data is stored in the "Overlay Data" (60xx,3000) element and in this case you can call GetOverlayImage to get the data for that overlay.

Leadtools.RasterOverlayAttributes.Origin will hold the value of the "Overlay Origin" (60xx,0050) element; however, the upper left pixel of the image will have the coordinate 0\0, instead of 1\1 (as in the DICOM standard).

This method will always set Leadtools.RasterOverlayAttributes.Color to black.

For multi-frame overlays, this method will update Leadtools.RasterOverlayAttributes.FramesInOverlay with the value of "Number of Frames in Overlay" (60xx,0015) element and Leadtools.RasterOverlayAttributes.ImageFrameOrigin with the value of "Image Frame Origin" (60xx,0051) element.

Leadtools.RasterOverlayAttributes.ActivationLayer will be updated with the value of the element "Overlay Activation Layer" (60xx,1001).

Example
For an example, refer to OverlayCount.
Requirements

Target Platforms

See Also

Reference

DicomDataSet Class
DicomDataSet Members
OverlayCount Property
GetOverlayGroupNumber Method
IsOverlayInDataSet Method
GetOverlayActivationLayer Method
GetOverlayImage Method
GetOverlayImages(Int32,Int32,Int32) Method
SetOverlayAttributes Method
SetOverlayImage Method
SetOverlayImages Method
DeleteOverlay Method

 

 


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