FromAnnContainerToDataSet Method

'Declaration
 
Public Function FromAnnContainerToDataSet( _
   ByVal ds As DicomDataSet, _
   ByVal annContainer As AnnContainer _
) As DicomElement

Private Sub DicomAnnotationsUtilities_FromAnnContainerToDataSet(ByVal dsImage As DicomDataSet, ByVal outfilePresentationState As String)
   ' Create an AnnRectangleObject (rotated, filled)
   Dim rectangleObject As New AnnRectangleObject()
   rectangleObject.Stroke.Stroke = AnnSolidColorBrush.Create("red")
   rectangleObject.Fill = AnnSolidColorBrush.Create("blue")
   rectangleObject.Points.Add(GetLeadPointD(100, 100))
   rectangleObject.Points.Add(GetLeadPointD(200, 100))
   rectangleObject.Points.Add(GetLeadPointD(200, 200))
   rectangleObject.Points.Add(GetLeadPointD(100, 200))
   rectangleObject.Rotate(45.0, GetLeadPointD(150, 150))
   ' Create a pointer object
   Dim pointerObject As New AnnPointerObject()
   pointerObject.Stroke.Stroke = AnnSolidColorBrush.Create("red")
   pointerObject.Points.Clear()
   pointerObject.Points.Add(GetLeadPointD(300, 100))
   pointerObject.Points.Add(GetLeadPointD(400, 200))
   pointerObject.PointerPosition = AnnPointerPosition.End

   ' Create a ruler object
   Dim polyRulerObject As New AnnPolyRulerObject()
   polyRulerObject.Stroke.Stroke = AnnSolidColorBrush.Create("green")
   polyRulerObject.Points.Add(GetLeadPointD(100, 300))
   polyRulerObject.Points.Add(GetLeadPointD(200, 400))
   polyRulerObject.Points.Add(GetLeadPointD(300, 300))

   ' Add them to the AnnContainer
   Dim annContainer As New AnnContainer()
   annContainer.Mapper = New AnnContainerMapper(96, 96, 96, 96)
   annContainer.Children.Add(rectangleObject)
   annContainer.Children.Add(pointerObject)
   annContainer.Children.Add(polyRulerObject)

   ' Create a DicomDataSet
   Dim dsPS As New DicomDataSet()
   dsPS.Initialize(DicomClassType.GrayscaleSoftcopyPresentationState, DicomDataSetInitializeFlags.AddMandatoryModulesOnly Or DicomDataSetInitializeFlags.AddMandatoryElementsOnly)

   ' Delete the empty referenced Series Sequence
   Dim referencedSeriesSequence As DicomElement = dsPS.FindFirstElement(Nothing, DicomTag.ReferencedSeriesSequence, True)
   If referencedSeriesSequence IsNot Nothing Then
      dsPS.DeleteElement(referencedSeriesSequence)
   End If

   ' Add a new Referenced Series Sequence
   dsPS.AddPresentationStateImageReference(dsImage, Nothing, 0)

   ' Set up the DicomAnnotationsUtilities converter
   Dim du As New DicomAnnotationsUtilities()
   du.ContainerMapper = annContainer.Mapper
   du.DefaultObject = New DicomTextObject()
   du.ImageDpiX = 96.0
   du.ImageDpiY = 96.0
   du.DisplayWidth = 200
   du.DisplayHeight = 200
   du.LayerName = "Layer 0"

   AddHandler du.OnIncrementGraphicGroupId, AddressOf du_OnIncrementGraphicGroupId
   AddHandler du.OnIncrementCompoundGraphicInstanceId, AddressOf du_OnIncrementCompoundGraphicInstanceId


   ' Convert LEAD annotations to DICOM annotations
   Dim graphicAnnSequenceItem As DicomElement = du.FromAnnContainerToDataSet(dsPS, annContainer)

   ' Save the presentation state
   dsPS.Save(outfilePresentationState, DicomDataSetSaveFlags.None)

   ' Now you can convert the presentation state dataset back to an AnnContainer
   Dim annContainerNew As AnnContainer = du.FromDataSetToAnnContainer(dsPS, graphicAnnSequenceItem)

   ' There should be three objects
   Debug.Assert(annContainerNew.Children.Count = 3)

   MessageBox.Show("Presentation State Saved: " & outfilePresentationState)
End Sub

Private Function GetLeadPointD(ByVal x As Double, ByVal y As Double) As LeadPointD
   Dim imageDpi As Double = 96.0
   Return New LeadPointD(x * 720.0 / imageDpi, y * 720.0 / imageDpi)
End Function

' Override the default behavior of IncrementGraphicGroupId
Private Sub du_OnIncrementGraphicGroupId(ByVal sender As Object, ByVal e As EventArgs)
   Dim du As DicomAnnotationsUtilities = TryCast(sender, DicomAnnotationsUtilities)
   If du IsNot Nothing Then
      du.GraphicGroupId = du.GraphicGroupId + 2
   End If
End Sub

' Override the default behavior of IncrementGraphicInstanceId
Private Sub du_OnIncrementCompoundGraphicInstanceId(ByVal sender As Object, ByVal e As EventArgs)
   Dim du As DicomAnnotationsUtilities = TryCast(sender, DicomAnnotationsUtilities)
   If du IsNot Nothing Then
      du.CompoundGraphicInstanceId = du.CompoundGraphicInstanceId + 10
   End If
End Sub